Answer:
Eukaryotes
Explanation:
Eukaryotes are all animals, plants and fungi. The unicellear protists also have eukaryotic or true cells.
Eukaryotes are any of the single celled or multicellular organisms whose cells have at least one distinct nucleus. The cells are enclosed within a membrane.
Eukaryotes are an advancement over the prokaryotes whose cells are quite primitive in nature. Prokaryotes are a group of organisms characterised by absence of membrane bound organelles and a true nucleus.
Examples of prokaryotes are the archae and the bacteria.
If everyone on the planet used the same amount of resources as an average American, what percent of the Earth would need to be used to support everyone?
Final answer:
If everyone on the planet used the same amount of resources as an average American, we would need three planets to support everybody. The U.S. population makes up 5% of the global population but uses one-third of all the resources consumed each year.
Explanation:
If everyone on the planet used the same amount of resources as an average American, we would need three planets to support everybody. The current consumption patterns of humans, particularly in developed countries like the United States, are already dramatically reshaping the world. The U.S. population makes up 5% of the global population but uses one-third of all the resources consumed each year.
(03.02 MC)Which of the following statements describes what occurs with energy as a result of the Law of Conservation of Energy?
A. The amount of energy before a process occurs is less than the energy after the process occurs.
B. The amount of energy before a process occurs is greater than the energy after the process occurs.
C. The amount of energy before a process occurs is equal to the energy after the process occurs.
D. The amount of energy before and after a process occurs is always equal to zero.
Answer:
The amount of energy before a process occurs is equal to the energy after the process occurs.- C.
Answer:
C
Explanation: i got it right on the exam
Fish respiratory systems exchange gas and receive oxygen at the gills. This oxygen then enters the blood stream and is pumped through the heart and back through the gills without first returning to the heart. This order of events best describes which type of circulation system?
a) double loop
b) single loop
c) open
d) recycling
please help me
This type of circulatory system is called the open circulatory system... :)
Answer: Single loop
Explanation:
The circulatory system of the fishes are considered as the single loop circulatory system because they have a single circulatory pattern.
Deoxygenated blood from the body reaches the heart which is then pushed towards the gills. The gaseous exchange takes place between the outer environment and gills and then oxygenated blood is circulated through out the body.
A scientist studied four rock rock fossils that show evolution of the modern day horse dating back to 35 million years, 15 million years, 8 million years, and 1 million years ago. Which rock fossil is most similar to the modern day horse
Answer: i feel like this is a trick question but it most likely would be
D: 1 Million yrs.
since its the earliest we can go:)
Explanation:
Where does DNA replication occur during the cell cycle? Why?
Answer:
S phase of Interphase
Explanation:
The concentration of salt is higher inside a cell than outside the cell. The concentration of water inside the cell is lower than it is outside. Salt cannot pass through the cell membrane. What will happen to the concentrations of water and salt? A. Water will move into the cell through diffusion. The salt concentration will be greater inside than outside. B. Water will move out of the cell through diffusion. The salt concentration will be less inside than outside. C. Water will move into the cell through osmosis. The salt and water concentrations will become similar inside and outside the cell. D. Water will move out of the cell through osmosis. The salt and water concentrations will become similar inside and outside the cell.
Answer:
C. Water will move into the cell through osmosis. The salt and water concentrations will become similar inside and outside the cell.
Explanation:
Osmosis is the movement of water from its higher concentration to the lower concentration through a semi permeable membrane. Here, the cell have higher salt concentration and lower water concentration as compared to its outside. Since cell membrane is semi permeable, salt cannot pass through it. So, water will move into the cell through osmosis to equalize the salt and water concentration on either side of cell membrane.
How are the testes and ovaries similar? A. Both produce sex cells. B. Both store mature sex cells. C. Both transport sex cells from their site of production. D. Both connect internal reproductive organs to the exterior.
Answer:
A. Both produce sex cells.
Explanation:
The testes are the male sex glands, because they produce male sex cells (sperm) and male sex hormones (testosterone). Their female equivalent would be the ovaries, which produce the ovules and the various female sex hormones.
Answer:
B
Explanation:
Can anyone help with these questions please?
5. Yes.. In turner syndrome every cell of body contains only 45 chromosomes
(44 + X0)..it is monosomy.
It happened when abnormal 22 +0 male sperm fuses with normal 22 +X female.
Or when abnormal female ovum fuses with normal sperm.
The Zygote if formed has 1 copy missing of X chromosomes.. When this zygote undergoes goes mitosis every cell will only 1 coly of X chromosomes.
6. No.. Bcoz in down syndrome.. There is extra copy of chromosome no. 21..
(45 +XX) or (45+XY). No.. They can't give rise to normal child.
Also
Males having down syndrome have very rare chances of being fertile.
7.yes..in case of XXYY syndrome.
In this abnormal male gametes (22+YY) fuses with abnormal female gametes
22+XX.
8. Color blindness is reccessive sex linked disease..
In females there are two copies of X.. Nit present in males and girls having Turner's syndrome.
Hope this helps you
The questions serve as a pre-laboratory exercise, helping students to frame the purpose of scientific experiments and form hypotheses. It is an integral part of preparation in a scientific educational context, particularly before engaging in lab work.
Explanation:The questions mentioned are designed to prompt students' critical thinking and are an essential part of a scientific educational approach, specifically within a laboratory setting. Before conducting lab exercises, students are encouraged to review background information that will give them context for the experiments ahead. Understanding the pre-laboratory questions is a pivotal step in the scientific method, as it helps frame the investigation's purpose and provides a basis for forming hypotheses.
It is typical for laboratory manuals or course materials to ask students to think about and jot down investigative questions they hope to answer through their experimentation. This practice underscores the importance of having clear objectives and seeking specific answers when engaging in scientific inquiries. In a lab environment, questions are not merely for assessment but act as a roadmap guiding the investigation.
In an endothermic reaction products are_in potential energy and stable than reactants.
In an endothermic reaction products are in potential energy and stable\ higher than the reactants.
What is endothermic reaction?Endothermic reaction is a reaction in which the system absorbs the energy from its surrounding in the form of heat.
In an endothermic reaction, the enthalpy H of the system increases.
The potential energies of products are higher than the potential energies of reactants in the endothermic reaction.
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Which of the following best describes how comparative anatomy can be used to determine the evolutionary relationship between two organisms?
Organisms that have a great deal of physical similarity are more likely to share a common ancestor than two organisms with few physical traits in common.
Comparing the physical traits of two organisms makes it possible to determine how long ago they shared a common ancestor.
Studying the physical differences between two organisms will show which organism evolved from the other.
Two species that have few physical traits in common do not share a common ancestor and most likely evolved from different species.
Answer:
The correct option is D.
Explanation:
Comparative anatomy has long served as evidence for evolution, now joined in that role by comparative genomics; it indicates that organisms share a common ancestor.
hope this helps :)
Answer:
Two species that have few physical traits in common do not share a comman ancestor and most likely evolved from different species.
Explanation:
In order to be an endocrinologist, one must
a.have certification and a license.
b.receive certification before completing a fellowship.
c.receive a license before completing a residency.
d.have a certification, but not a license.
i think its A? hope its right
Answer:
It’s B
Explanation:
Earth has seasons because _____.
the distance between Earth and the sun changes
the temperature of the sun changes
it rotates on its axis as it moves around the sun
its axis is tilted
Answer:
D. It axis is tilted.
That's why there are 4 different seasons on earth occuring at different times because of the way Earth's axis is tilted.
Answer:
d
Explanation:
11. What is/are one of the environmental waste products of nuclear energy?
Explanation:
spent nuclear fuel
Tailings and waste rocks
Answer:
A prime environmental concern associated with nuclear power is the generation of radioactive wastes like used reactor fuel, uranium mill tailings, and other radioactive wastes. These substances can stay radioactive and threatful to human beings as they remain for thousands of years. These wastes are confined to unique regulations, which manage their transportation, handling, disposal, and storage to safeguard the health of human beings and the environment. The radioactive wastes are categorized as low-level and high-level wastes.
After a plant is set on a windowsill for several days, its owner comes back to find its stem bent at a sharp angle toward the glass of the window. Which of the following describes this movement of the plant in response to stimuli?
A. Gravitropism
B. Negative phototropism
C. Positive phototropism
D. Thigmotropism
Answer:
C. Positive phototropism
Explanation:
This is a response of plants towards external stimuli. The plant is bent toward the glass of the window because light is coming from the window. It is considered as positive phototropism because it is moving towards the light. The opposite occurs with negative phototropism. In negative phototropism, the movement of plant would be away from the external stimulus.
When you talk about gravitropism, this is the direction of the growth of plants that is affected by gravity. Thigmotropism is the growth response of the plant towards physical touch.
Which if the following is a characteristic specific to primates?
a. Body hair
b. Rotation at the shoulder joint
c. Notochord
d. Ability to control body temperature
Answer:
I think it is B.
Explanation:
Hope my answer has helped you!
write any two points to justify that urbanization brings energy crisis
Answer:
Increase in urbanization means an increase in the usage of industrial products. This results in consumption of more fuel by industries in order to massively scale up the production of such goods and meet the rising demand.
As a result of urbanization, the lifestyle of people has also greatly changed, promoting more usage of automobiles which increases pollution and also, encourages more usage of fuel.
Look at the figure above. Which position of the earth represents an equinox?
A. End of summer
B. Middle of spring
C. Beginning of autumn
D. Beginning of winter
Answer:
C. Beginning of autumn
Explanation:
On this image we can see the position of the Earth toward the Sun in four different parts of the year. WE can see that in one part of the year the Northern Hemisphere is tilted toward the Sun, while in the opposite part of the year it is the Southern Hemisphere that is tilted toward the Sun. In between them, we have 21 March and 23 September when both hemispheres are equally exposed to the sunlight. These to dates mark the beginning of spring and beginning of autumn. As they are dates when both hemispheres receive equal amounts of sunlight, it means that these are the dates when the equinoxes appear on Earth.
Answer:
C. Beginning of autumn
is the position of the Earth that represents an equinox.
Explanation:
PLEASE HELPP!
Which of the following describes how the circulatory and excretory systems work together to help maintain homeostasis?
A.By delivering oxygen to cells
B. By having cells that fight infections
C.By delivering nutrients from food to cells
D. By carrying waste to the kidneys
In an ecosystem which of these is not recycled?
Water
energy
carbon
nitrogen
- Energy
"Matter is recycled, but energy is not. In an ecosystem, matter is represented by the presence of biogeochemical elements such as Hydrogen, Carbon, Nitrogen, Oxygen, Phosphorus and Sulfur."
In an ecosystem which of these is not recycled energy. Thus, option "B" is correct.
What is Biodiversity?Biodiversity has three levels - ecosystem, species and genetic diversity. Therefore, Biodiversity can be defined as the variability among living organisms involving terrestrial, marine, and other aquatic ecosystems, genes and alleles in a species and their ecological complexes such as diversity within species, and between species of the ecosystems.
Thus, option "B" is correct.
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Station 4! Help pls!
1. organisms that can make their own foods are called ____.
A. Autotrophs
B. Heterotrophs
C. Consumers
D. Decomposers
2. The difference between prokaryotes and eukaryotes is ____.
A. Prokaryotes contain cells
B. Prokaryotes are bigger
C. Eukaryotes have membrane bound structures
D. Eukaryotes do not contain organelles
3. Earthworms, jellyfish, insects, and spiders are grouped together because they are ____.
A. Prokaryotes
B. Vertebrates
C. Autotrophs
D. Invertebrates
4. ____ plants such as moss and liverwort do not have true roots, stems, or leaves.
A. Woody
B. Herbaceous
C. Vascular
D. Nonvascular
Answer:
1.) Autotrophs
2.)C
Explanation:
(True or false) Whale sharks and manta rays are very large predators and are a danger to divers?
(True or false) octopus always remain the color that they were when born?
(True or false) the sex of baby turtles is determined by the temperature of the sand they incubate in?
(True or false) some corals produce both sperm and eggs?
1. False
Whale sharks and manta rays can indeed be large, and they are predators, but they do not pose threat to divers. Both of these species, even though they do not look alike at all, are part of the shark family. While they are both in the predator category, they actually eat miniature organisms and very tiny fish in general, thus not being anywhere near as aggressive or dangerous for the divers as some of their shark relatives. The manta rays for example do not even have teeth to pose a significant threat, they have a poisonous sting on their tail but that is only used for defense, not attack.
2. False
The octopuses are definitely one of the weirdest and most interesting animals on the planet. They are highly intelligent, have even been noticed using tools, have three hearts, one central and eight other independent brains in their tentacles, and also have a beak. Like all of that is not weird enough, they also have the ability to change their color, and not just the color all over, but also to mimic certain patters. The change of color is used for both camouflage for attack and for defense and avoiding predators.
3. True
The turtles spend the majority of their lives in water, but they still use the land for nesting. They will come to the sandy beaches, dig a large hole, and fill the hole with hundreds of tiny eggs, and than cover them with send. The sex of the turtles that are developing in the eggs depends directly on the temperature of the sand, so it can literary be a situation where all of them will be female because of the temperature, or all of them to be male because of the same reason.
4. True
The corals are a weird bunch. They look like plants, but they are actually animals. They also look like one compact unit, but they are actually millions, or billions miniature animals that are collaborating and build colonies. They also are interesting in their reproduction, as all of the species are able to reproduce asexually, but there are some that are able to reproduce both asexually and sexually, depending on the circumstances.
How is energy expended in active transport?
A. Glycolysis
B. Lysic acid
C. ATP
D. Krebs cycle
Answer:
The correct answer is ATP.
Explanation:
When molecules or ions moves into higher concentration from lower concentration through a cell membrane with the help of enzymes and requires energy, this type of transport of molecules or substances called active transport. Active transport requires chemical energy to perform this transport and ATP is the form of chemical energy expended in this process. ATP is an abrevation of adenosine triphosphate.
ATP is the energy expended in active transport.
Active transport is the homeostatic process that requires energy to move particles across the plasma membrane.
Further Explanation Transport in living organismsPlants and animals use various processes to transport materials from one point to another.There are classified as either passive transport or active transport.Active transport It is a type of transport in living organisms that involves movement of substances against a concentration gradient through the plasma membrane.Active transport is the homeostatic process that requires chemical energy to move particles across the plasma membrane.The chemical energy used during active transport is in the form of ATP.Passive transportIt is a type of transport that does not involve the use of energy to aid movement of substances in living organisms.Passive transport involves free movement of substances and through special types of transporters or carriers.Types of passive transport includes; simple diffusion, facilitated diffusion, osmosis, and mass flow among others.Types of passive transportFacilitated diffusionFacilitated diffusion is a type of passive transport which involves the diffusion of solutes by use of transport proteins in the plasma membrane.Facilitated diffusion uses transport proteins to transport solutes down their concentration gradient.Osmosis Osmosis is a special diffusion that involves the movement of water molecules from a region where they are highly concentrated to a region where they are lowly concentrated through a semipermeable membrane.It may also refer to the movement of water molecules from a region of low particle concentration to a region of a high particle concentration.Diffusion Diffusion is a type of passive transport that involves movement of particles from a region of high concentration to a region of low concentration.Diffusion involves movement of molecules of substances other than water.Keywords: Active transport, energy in the form of ATP, Passive transport, Diffusion, Osmosis,
Learn more about: Active transport: https://brainly.com/question/962691Passive transport: https://brainly.com/question/962691Diffusion: https://brainly.com/question/962691Level: High school
Subject: Biology
Topic: Transport in living organisms
Sub-topic: Active transport
which plant has largest pollen
daisys because there bright yellow cor hold the most pollen
Which climate has subclimates with humid summers as well as subclimates with long, bitterly cold winters?
Polar
Tropical rainy
Temperate marine
Temperate continental
Temperate continental
Answer: temperate continental
Explanation: took test
Which of the following will decrease peripheral resistance?
Can you show me the following??
What molecule contains an organism's genetic material, passed down from parents to their offspring? A. Protein B. Lipid C. DNA D. RNA
Answer:
DNA..................
Answer:
The correct answer is option C. DNA.
Explanation:
The genetic or hereditary material of an organism refers to those materials found in the nucleus, cytoplasm, and mitochondria which play a fundamental role in determining the nature and the structure of cell substances, and capable of variation and self-propagation.
DNA is a hereditary or genetic material in most of the organism, which carries genes like beads on strings. Gene carries information that passes from parents to their offspring.
Thus, the correct answer is option C.
which of the following accurately describes rill erosion?
please and thanks!
Answer: D
Explanation:
The surface water flows that cause sheet erosion rarely flow for more than a few metres before concentrating into rills. Rills are shallow drainage lines less than 30cm deep. They develop when surface water concentrates in depressions or low points through paddocks and erodes the soil.
Running water cuts small channels into a slope.
The liver of a dog has been found to have higher than normal cell death because the DNA is damaged. What part of the cell failed to do its job of protecting the DNA of the cell? A. Nucleolus B. Chromosomes C. Nuclear envelope D. Nucleus
The answer is Nuclear envelope.
Basically, the Nuclear envelope is an outer shell that protects the cell (which includes the dna) from any harmful things.
Answer: Nuclear envelope.
Explanation:
The nuclear envelope helps in protecting the nucleus from getting damage. The DNA resides in nucleus of the cell.
It is the main hereditary material which transfers the genetic materials from one generation to another generation.
If the nuclear envelope is damaged then the DNA inside it will be protected. So, to protect the DNA the nuclear envelope should not be damaged.
According to cell theory, viruses are considered nonliving because they
Answer:
lack the ability to reproduce without a host
Explanation:
Viruses are considered nonliving according to cell theory because they are acellular, do not carry out metabolism independently, and cannot replicate without a host cell.
According to cell theory, viruses are considered nonliving because they do not meet the several criteria traditionally associated with living organisms. Here are some key reasons:
Viruses are acellular, meaning they contain no cytoplasm or cellular organelles.They carry out no metabolism on their own and must replicate using the host cell's metabolic machinery.Viruses cannot replicate on their own; they require a host cell to manufacture more viruses.While viruses do contain genetic material in the form of DNA or RNA, they lack the cellular components necessary for metabolic processes and homeostasis. They can only reproduce by co-opting the host's cellular machinery, which means they cannot maintain an independent existence like living cells. Therefore, most scientists do not consider viruses to be living organisms.
The base of an energy pyramid is always composed of _______________.
Autotrophs!!!!!!!!!!!!