D. A protein catalyst in a living organism
An enzyme is best defined as a protein catalyst in a living organism, speeding up specific biochemical reactions by lowering activation energy. They work through highly specific active sites and are essential for life's processes.
Explanation:The best definition of an enzyme is D. a protein catalyst in a living organism. An enzyme is a substance produced by a living organism which serves as a catalyst to accelerate specific biochemical reactions. These reactions are crucial for various biological processes and without enzymes, these reactions would proceed too slowly to sustain life. Enzymes work by lowering the activation energy required for a reaction to occur, thereby increasing the reaction rate. They bind to molecules called substrates, forming an enzyme-substrate complex, and facilitate the conversion of substrates into different molecules, the products of the reaction.
Enzymes are incredibly specific, meaning each type of enzyme typically catalyzes only one kind of biochemical reaction. The region where the enzyme binds to the substrate is known as the active site, and the fitness of this binding is often described by the induced fit model, suggesting that the active site adapts to snugly fit the substrate upon binding.
What causes a branch in a cladogram
A branch in a cladogram represents the evolutionary divergence or splitting of a common ancestor into two or more different lineages. It indicates a point in evolutionary history where a group of organisms, represented by the common ancestor, gave rise to separate descendant lineages.
The branching pattern is determined based on the analysis of various characteristics or traits shared among different organisms. These traits can include anatomical features, physiological characteristics, genetic information, or even behavioral patterns. By comparing and analyzing these traits, scientists can construct cladograms or phylogenetic trees to depict the evolutionary relationships and the branching patterns of organisms.
Learn more about cladogram here.
https://brainly.com/question/29300865
#SPJ2
distantly related organisms may be similar if they live in ?
Distantly related organisms may be similar if they live in Similar environments
Which definition best describes polygenic traits?
A.
traits that are controlled by multiple genes
B.
traits that express both alleles of a gene pair
c.
traits that are carried on linked genes
D.
traits that affect several features
Reset
Next
The best definition which describes polygenic traits is :
B) traits that are controlled by multiple genes.
Polygenic traits basically mean the traits that are a result of multiple intertwined traits like for example skin colour.
When two people mate their traits get intertwined and the resultant trait of the baby is a result of the polygenic traits.
Answer:
A. traits that are controlled by multiple genes
Explanation:
Polygenic traits are controlled by more than one genes. An example of this on humans is height. Not one gene controls the height of a human, many traits contribute to the height of a human.
identify the type of energy described in each sentence
Lipids to fat: Chemical, since ingestion is in process to make this change possible.
Hat: Gravitational, since gravity causes objects to pull toward each other, here it is the Earth and the hat.
Wave of water: Mechanical, since the movement of energy is visible and clearly touchable.
Burner to kettle: Thermal, since heat is involved.
Power plant: Nuclear, since splitting atoms is part of the process called nuclear fission.
Nerve: Electrical, since nerves function by sending electrical pulses.
Sun to plant: Radiant, since the sun's electromagnetic waves/radiation are being transferred.
The type of energy described is Chemical energy, Gravitational energy, Mechanical energy, Thermal energy, Nuclear energy, Electrical energy, and Radiant energy.
What is Energy?Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.
Lipids to fat: Chemical energy, since ingestion is in the process to make this change possible.Hat: Gravitational energy, since gravity causes objects to pull toward each other, here it is the Earth and the hat.A wave of water: Mechanical energy, since the movement of energy is visible and clearly touchable.Burner to kettle: Thermal energy, since heat is involved.Power plant: Nuclear energy, since splitting atoms is part of the process called nuclear fission.Nerve: Electrical energy, since nerves function by sending electrical pulses.Sun to plant: Radiant energy since the sun's electromagnetic waves/radiation are being transferred.To learn more about energy, refer:
https://brainly.com/question/2003548
#SPJ2
What would be some Innate Behaviors for an arctic fox?
Answer:
the artic fox, although beautiful, relies on hearing, movement under snow, and mostly scavenging from polor bears..
Explanation:
this is just how they are programmed to survive..they are opportunistic, in a desolate environment with prey that take a lot of they're energy to track down, more energy is spent hunting mice, rabbit, and finding carrion..
These glands are also known as eccrine glands and help maintain body temperature. Sebaceous
sweat
chloride
dermal
The eccrine glands, also known as dermal sweat glands, play a crucial role in maintaining body temperature. They produce sweat, and its evaporation from the skin's surface cools the body down, contributing to thermoregulation.
Explanation:The glands referred to as eccrine glands are also known as dermal sweat glands. These glands are predominantly located throughout the human skin, and they play an essential role in maintaining body temperature. The primary function of these glands is to produce sweat, which, when it evaporates off of the skin surface, helps to cool the body down. This process is an essential part of thermoregulation, the body's way of maintaining a stable internal temperature despite varying external conditions.
Learn more about Eccrine Glands here:https://brainly.com/question/31558559
#SPJ2
The glands in mention are the sweat glands or eccrine glands. They play a crucial role in temperature regulation by releasing sweat when the body overheats. They are found all over the body and are most abundant on the forehead, palms, and soles.
Explanation:The glands referred to in your question are sweat glands. Sweat glands, also called eccrine glands, are crucial in helping the body maintain its temperature. When your body heats up, these glands release sweat which, upon evaporation, cools down the body. Eccrine glands are different from sebaceous glands in that the latter produce an oily secretion to help keep the skin lubricated. They are spread all over the body, but are most dense on the forehead, the palms of the hand, and the soles of the feet.
Learn more about Eccrine Sweat Glands here:https://brainly.com/question/34015510
#SPJ2
Rabbits and sheep both graze on shrubs, grasses, and other plants. The sharp rise in the population of rabbits in a region may result in a shortage of plants for sheep to graze upon. This relationship between sheep and rabbits is an example of _______.
Answer:
Competition
Explanation:
Answer:
competition
Explanation:
During competition there is an interaction between the species of plants and animals that compete for territory, food, or mating with the opposite sex and in which one of them is harmed.
One of these fights may be due to the consumption of some limited resource that both species need in order to survive, such as that of the shrubs in the example. This type of competition occurs all the time in all ecosystems.
When competition occurs between individuals of different species, it is called interspecific competition, and when it occurs between individuals of the same species it is called intraspecific competition.
It usually ends up surviving the most suitable species.
Which attributes describe nonrenewable resources ?
Answer:
Exist in fixed amounts
Explanation:
This means that this item is not something that can be created again, once you use it you use it and it's gone.
Answer:
Non-renewable resources are used faster than they can be replaced.
Explanation:
Even when it is possible to replace them, it takes so many time to do.
For example, fossil fuel: it takes millions of years to replace it, once used.
What describes the diet of a saprotroph?
Dead plant matter
Bones and feathers
Animals and fungus
Plants and fungus
This type of life form seems to feed on decaying organic matter. Hope this helped!
The diet of a saprotroph organism includes bones and feathers.
A decomposer (also known as detritivore) is any organism that breaks down and eats dead organic material.
On the other hand, a saprotroph is an organism that eats the remaining organic material other decomposers cannot (e.g., bones, fur, etc).
Saprotrophic organisms include bacteria (e.g., E. coli, Spirochaeta), fungi, etc.
In conclusion, the diet of a saprotroph organism includes bones and feathers.
Learn more in:
https://brainly.com/question/755458?referrer=searchResults
The lesser tubercle of the humerus is the distal skeletal attachment site for the
Answer:
It has an anterior and posterior face. The greater tubercle serves as attachment site for three of the rotator cuff muscles – supraspinatus, infraspinatus and teres minor – they attach to superior, middle and inferior facets respectively. The lesser tubercle is much smaller, and more medially located on the bone
Answer:
Explanation:
The lesser tubercle is smaller and more medially located on the bone. It only has an anterior surface. The lesser tubercle provides attachment for the last rotator cuff muscle which is the subscapularis. The intertubercular sulcus Separates the two tubercles.
Blood type in humans is an example of a trait that has multiple alleles. The alleles for type A blood and type B blood are codominant, and type O blood is recessive to both type A and type B. If a girl with type AB blood has a brother with type O blood and a sister with type B blood, which of the following genotypes could it be possible for their parents to have?
Given that the offspring have blood types AB, B, and O, it is possible for the parents to have genotypes of IAi and IBi. This demonstrates the facets of multiple alleles and codominance in the determination of blood types in humans.
Explanation:The possible genotypes for the parents are IAi and IBi. The girl with blood type AB must inherit an A allele from one parent and a B allele from the other, making her genotype IAIB. The sister with blood type B could have inherited an B allele from either parent and an i allele from the other, making her genotype IBi. The brother with blood type O inherited an i allele from each parent, making his genotype ii. Therefore, the parents' possible genotypes could be IAi and IBi.
As background, the ABO blood groups are determined by three alleles. The IA and IB alleles are codominant, meaning that when present simultaneously, both are expressed, leading to the type AB blood group. The i allele is recessive to both the IA and IB alleles, and in the absence of either of these, the O blood type results.
Learn more about ABO Blood Groups here:https://brainly.com/question/27212996
#SPJ12
Which of the following would be a body response when stepping outside without a coat on a snowy day?
On a snowy day, without a coat, our body responds in three ways. It gives goosebumps to trap heat, induce shivering to generate heat, and constricts blood vessels to preserve body heat.
Explanation:When stepping outside on a snowy day without a coat, our bodies respond to the freezing temperatures in several ways. First, you'll likely experience goosebumps, a reflex action aimed at raising body hair to trap warm air closer to the skin. Second, you might also begin to shiver, a rapid contraction and expansion of muscles to generate heat in your body. Third, blood vessels near the skin will constrict (vasoconstriction) to preserve body heat, diverting it towards vital organs.
Learn more about Body response to cold here:https://brainly.com/question/36247801
#SPJ2
The body response to cold when stepping outside without a coat includes narrowing and contracting blood vessels in the skin (vasoconstriction) to reduce heat loss and maintain core body temperature.
When stepping outside without a coat on a snowy day, the body responds by initiating thermoregulation to preserve heat. The correct response is A. Blood vessels in the skin narrow and contract, a process known as vasoconstriction. This action reduces the flow of blood to the skin's surface, thereby minimizing heat loss. In contrast, during activities that increase body temperature such as running or skiing, the body would dilate the dermal blood vessels and increase sweat secretion to prevent overheating, but this is not the case in cold environments. Instead, the body conserves heat to maintain core temperature.
The complete question is:
Which of the following would be a body response when stepping outside without a coat on a snowy day?
A. Blood vessels in the skin narrow and contract.
B. More liquid is transported by the body to the skin for insulation.
C. Sebaceous glands secrete more sebum.
D. Blood vessels in the skin expand
climates are classified according to which two major factors
Answer:
elevation and latitude. latitude and temperature.
Explanation:
Answer:Precipitation and Temperature
Explanation:
Energy + 6CO2 + 6H2O → 6O2 + C6H12O6 This is the chemical reaction that occurs during photosynthesis; identify which of these is a product in this chemical reaction. A) water B) oxygen C) hydrogen D) carbon dioxide
Answer:
oxygen
Explanation:
the products of the reactions are 6O2 (oxygen) and C6H1206 (glucose)
Convert 11.75 millimeters to meters. meters
Answer:
0.01175 meters
......
Answer:
0.01175
Explanation:
To convert millimeters to meters, we must divide the number of millimeters by 1000 because for one meter, there is one thousand millimeters
So, 11.75/1000= 0.01175
what are agricultural practises
Answer:
Agricultural practices are collection of principles to apply for farm production processes to get better agricultural products.
Good agricultural practice is a certification system for agriculture, specifying procedures that must be implemented to create food for consumers or further processing that is safe and wholesome, using sustainable methods
What are the weather events related to a warm front?
slow and steady precipitation occurring at the front with warmer temperatures after the front passes
Both Darwin and Lamarck proposed mechanisms by which species might evolve. Although Darwin first published his ideas in the mid-1800s, most scientists continued to favor Lamarck's explanation until near the end of that century. What was the most likely cause of the eventual shift from Lamarck's hypothesis to that proposed by Darwin?
Answer:
More evidence accumulated supporting Darwin's ideas than could be found to support Lamarck's.
Explanation:
Answer:
Several evidences were found that supported the ideas defended by Darwin. As a result, Lamarck's ideas became obsolete.
Explanation:
Although we currently use Darwin's theories to explain the evolutionary processes of living beings, this has not always been the case. For a long time, Lamarck's theory of how living beings evolved was the theory accepted as correct.
Lamarck's theory is known as the "law of use and disuse". This law states that living beings have evolved because they have started to use a feature a lot, which has been developing more than the others. For example: In Lamarck's theory, giraffes had a large neck because, one day they had a small neck, but they stretched so far to reach the leaves of the trees that the neck developed, until it reached the height we know.
Although Darwin's theory of natural selection makes much more sense, it was only considered by scientists after much evidence about evolution was discovered. This evidence supported Darwin's theories, but made Lamarck's obsolete.
the fossil record shows that an organism is relatively unchanged for a long period of time, followed by several changes over a short period of time, followed by another period of stability. this provides evidence for which view of evolution?
A. biotic potential
B. monophyletic development
C. graduated speciation
D. punctuated equilibrium
Answer:
D. punctuated equilibrium
Explanation:
Punctuated equilibrium refers to the process of evolution which includes two long periods of little or no change in the gene pool of population. These periods of stability are disturbed by a short active phase of rapid changes in the gene pool and appearance of adaptations in individuals of population. Hence, the organism showing two prolonged periods of stability in terms of evolution punctuated by short phase of changes represents punctuated equilibrium.
Answer:
The correct answer is option D. "punctuated equilibrium".
Explanation:
Punctuated equilibrium is an evolutionary theory that states that a species stays in a long period of time without suffering any substancial change called "statis", followed by a short and rare period of dramatic changes called cladogenesis. Punctuated equilibrium states that evolutionary changes occur quickly and in separated periods of time. This theory of evolution contrast the theory of phyletic gradualism, which states that evolution occurs constantly and uniformly by gradual transformations.
Why is open pit mining so devastating to the environment?
Answer:
A. It completely removes any available topsoil.
Explanation:
Open pit mining is damaging to the environment because it entails the removal of topsoil and subsoil that house important organisms, it leads to water contamination due to discharge of harmful chemicals from processed minerals, and triggers deforestation, which affects biodiversity and contributes to carbon release.
Explanation:Open pit mining, also known as strip-mining or mountaintop mining, is incredibly devastating to the environment. There are several reasons for this.
Firstly, the process involves the removal of large quantities of topsoil and subsoil. These layers are home to many organisms that form a crucial part of the ecosystem, and their removal can disrupt this fragile balance.
Also, open pit mining often leads to water pollution. The extracted minerals are usually processed with water, which can then discharge harmful chemicals into nearby streams and groundwater. This is termed water contamination, and it can affect animal, plant, and human life.
Finally, open pit mining leads to deforestation. To make room for the mines, large areas of forest must be cut down, which results in loss of habitat for many species and a significant release of carbon dioxide into the atmosphere.
Learn more about Environmental Impact of Open Pit Mining here:https://brainly.com/question/31763902
#SPJ2
the aurora borealis caused by the
Answer:
Gaseous particles coming from the sun entering atmosphere through the poles, where Earth's magnetic field is the weakest.
The colors of the aurora borealis depends of the gas that is in the particles entering the atmosphere: oxygen will produce a pale yellowish-green, while nitrogen will produce blue or purplish-red, for example.
It's a phenomenon that can be seen near both poles... but of course it's much more accessible to watch in the Northern hemisphere.
what phenomenon is responsible for Hotspot volcanism
A. ridge push
B. pyroclastic flows
C. subduction
D. mantle plumes
Answer:
D. mantle plumes
Explanation:
The hotspot volcanism occurs because of mantle plumes. This type of volcanic activity can occur both in oceanic plates, or in continental plates. The mantle plumes are very powerful. They manage to penetrate through the crust without any particular problem, even if it is the the thickest part of the crust. This is why the hot spot volcanism is mostly found in the middle of the tectonic plates, or at least far away from the plate boundaries. The plates move above the mantle plumes, or rather the hotspot, and as they do they drag away with them the volcanoes that have been created. The volcanoes will lose their connection with the hotspot and they will stop being active, but the hotspot will create another, new volcano above, and the process continues. This type of volcanic activity can be seen on the Hawaii Islands, as well as the Yellowstone supervolcano.
Why does genetic engineering raise ethical concerns
Answer:
Because genetic engineering is no longer based off the natural science of life it is humanly modified which concerns the ethical reasoning of human life and can lead to non humanly right creations
Explanation:
Precipitation falls because of _________.
A. gravity
B. the water cycle
C. the hydrosphere
D. conservation of energy
What allows water droplets to stay aloft when they are small?
A.Earth’s gravity
B.updrafts of air
C.the sun’s gravity
D.Earth’s rotation
. When water flows over the land into a lake, river, or ocean, this process is called __________.
A.runoff
B.infiltration
C.precipitation
D.downhill flow
Surface water can seep into the soil in a process called __________ where it becomes ___________. Text to speech
A.runoff; porewater
B.infiltration; groundwater
C.precipitation; aquifer water
D.condensation; non-surface water
When rocks formations have connected ________ that allow groundwater to flow through it, the formation and its groundwater are called a(n) ____________.
A.pores; aquifer
B.spaces; aqueduct
C.layers; reservoir
D.stomata; groundwater
During the water cycle, water is never in the _________ form.
A.gaseous
B.liquid
C.solid
D.None; water is present in all form
Recall the three layers of muscles in the wall of the heart. Which lists these muscles in order from closest to the blood inside the chamber to farthest from the blood?
Answer:
The cardiac wall contains three layers: epicardium, myocardium and endocardium.
Explanation:
The epicardium, the outermost layer of the heart, also has a large amount of adipose tissue. It is the same as the visceral layer of the serous pericardium.
The myocardium, located below the epicardium, is the cardiac muscle tissue as such, responsible for pumping the blood through the circulatory system through contraction.
The endocardium is the membrane that covers the inside of the heart. This membrane surrounds the inside of blood vessels, transporting blood through a continuous tunnel of endothelial cells throughout the cardiovascular system.
Answer:
A. epicardium, myocardium and endocardium
Explanation:
EDGE 2020
natural selection is also known as what
Answer:
Darwin's Theory of Evolution by Natural Selection: Individual variation: there are variations among individuals within species. ... Individuals vary in their ability to survive and reproduce. Those with the most favorable traits will survive longer and have more offspring.
Explanation:
Answer:
survival of the fittest
Explanation:
which of the following set of characteristics accurately describes the phylum cnidaria?
A. radial symmetry with only two germ layers and one digestive opening
B. asymmetric and porous body plans
C. cylindrical bodies with bilateral symmetry and two digestive openings
D. flat bodied with three germ layers and a single digestive opening
Answer:
The correct answer is A. radial symmetry with only two germ layers and one digestive opening.
Explanation:
Phylum Cnidaria consist of aquatic organisms and they have special feature called Cnidocytes. Cnidocytes are tentacles used to capture the pray. All organisms of phylum are bilateral and have two body layers called Endoderm and Ectoderm. A jelly like material called mesoglea is present between ectoderm and endoderm. Their digestive system has no organs and their is a single opening to capture the food. As they have only single opening in digestive system it is also used to excrete the digested food out of the body.
Answer:
A. radial symmetry with only two germ layers and one digestive opening
20 POINTS AND BRAINLIEST FOR BEST ANSWER.
What is genetic information used for? How is it used?
Genetic information is your DNA, other known as deoxyribonucleic acid. It is basically your identification.
Genetic information (DNA) helps you know and understand health conditions that run in your family, as well as your risk for developing certain health conditions or having a child with certain conditions. This information can help you make healthy lifestyle choices and important life and medical decisions.
It can also be used to identify a perpetrator in a crime. There are many uses for DNA.
If this is not enough, feel free to use this link to learn more about DNA: https://en.wikipedia.org/wiki/DNA
Phosphorus is required for organisms to synthesize DNA and phospholipids. In an ecosystem, phosphorus is transferred into the soil by the weathering of rocks. Phosphorus is absorbed by plants, which are consumed by herbivores. Carnivores obtain phosphorus through the consumption of herbivores. Which is a process that transfers phosphorus between an abiotic system and a biotic system.
a , a plant absorbing phosphorus from the soil
b , weathering of rocks releases phosphorus into the soil
c , an herbivore consuming a plant
d , a carnivore consuming an herbivore
Answer:
a plant absorbing phosphorus from the soil
The transfer of phosphorus from abiotic to biotic organisms is the transfer of phosphorus from the soil to the plant. This phosphorus is required by living organisms for different cellular processes. Option a is correct.
What is a nutrient cycle in an ecosystem?In an ecosystem, the decomposers decompose dead animals and plants and release nutrients into the soil such as phosphorus, nitrogen, carbon, etc. These nutrients are present in the soil and consumed by plants in that ecosystem. The soil becomes fertile due to the availability of these nutrients. Plants are the producers in an ecosystem and, with the help of photosynthesis, make food.
Herbivores that feed on plants get phosphorus from plant sources, carnivores get it from herbivores, etc. Every nutrient, such as carbon, nitrogen, and sulfur, makes its way from soil to plant and then to animals in this manner.
Hence, because the biotic and abiotic connection is plants from the soil, option a is the correct answer.
To learn more about the nutrient cycle, refer to the following link:
https://brainly.com/question/15020567
#SPJ2
Choose the best explanation of the difference between evolution and natural selection. A. Evolution is the idea that species change over time, and natural selection is a mechanism by which evolution takes place. B. Natural selection is the idea that species change over time, and evolution is the idea that our world changes over time. C. Natural selection is the idea that species change over time, and evolution is the idea that the species' food source also changes over time. D. Evolution is the idea that species change over time, and natural selection is the idea that nature changes over time.
The correct answer is A
Answer:
The correct answer will be option A.
Explanation:
Evolution is a process which changes the characteristics of a species over several generations which changes species over time.
Natural selection is one of the mechanism by which species become adapted to their environment and evolve over time.
Natural selection takes place at the genetic level as the genetic mutations beneficial to survival are passed on to next generations through reproduction which result in generation of new organisms.This causes species to change and diverge over time.
For e.g- Before industrial revolution white peppered moth dominated compared to dark brown moths as the trees were white and the brown moths were not able to hide themselves from predators but after industrial revolution due to darkening of trees white moths were not able to hide while brown were able to and dominated.
thus option A is correct.