Transmission electron microscope are best for viewing
A) microorganisms in pond water
B) internal organs of a mouse
C)internal structures of a cell
D) surface features of a specimen
Answer:
D
Explanation:
Answer:
option C). internal structures of a cell.'
Explanation:
Which of the following best defines matter?
A. Living things found in the universe
B. Anything that is a solid or a liquid
c. Nonliving things found on Earth and in space
D. Anything that occupies space and has mass
Matter is anything that occupies space and has mass! (D)
Hope this helped!
~Just a girl in love with Shawn Mendes
D. Anything that Occupies space, and that contains mass.
➤ ReasonMatter is the very thing that defines "thing." Matter is anything that exists. Everything has mass, or some sort of place in space, even your thoughts that race through your head to ask this question. Mass is the amount of matter in a certain chosen area, or the amount of matter that a certain thing takes up. Everything takes up space, even if it's such a small area it may as well not exist. It's still matter.
✧ no no no i dropped my matter help╚═⋄═◇═◈═❖═✧═☆═✧═❖═◈═◇═⋄═╝The Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent.
What is the probability the offspring will be heterozygous for this trait?
Answer: 50% or 2/4
Explanation:
When you cross a homozygous dominant (AA) with a heterozygous (Aa) you will get 2 AA’s and 2 Aa’s
Question 14 (5 points)
All organisms on earth require energy to live. Which statement best describes how ferns,
people, and flatworms obtain energy?
A.Ferns produce ATP during photosynthesis, while flatworms and people produce ATP
during digestion.
B.Ferns and flatworms absorb food from their surroundings, while people must digest food
found in their surroundings.
C.Producers such as ferns do not require a source of energy, while flatworms and humans
must consume food for energy.
D.Ferns produce glucose that can be broken down by cellular respiration, while flatworms
and people digest foods containing glucose for use in cellular respiration.
Answer:
A.
Explanation:
Ferns are a type of plant, therefore the way they obtain will be the same way as any other plant: by creating energy (ATP) during photosynthesis.
Flatworms cannot create their own energy, they're not autotrophic. Therefore, they must obtain energy by digesting any food they may find.
Hope it helped,
BiologiaMagister
Some animals that live in the desert don't move often, if at all, during the day in order to conserve water and energy. This seasonal
behavior is best described as which of the following?
Answer:
Estivation
Explanation:
Estivation is like hibernation where the animal stays dormant to lower metabolic rate, or in other words conserve energy. It is different from hibernation because unlike hibernation which is done during cold seasons, estivation is an adaptation to hot seasons or hot days.
Answer:
C) Estivation
Explanation:
What happens when two nitrogen atoms share electrons
Your answer would be A, they form a covalent bond.
We can rule out B and C, as they require completely different elements. An oxygen molecule is made up of what it sounds like, oxygen, and a water molecule, 2 hydrogens and 1 oxygen. Therefore, it is neither of these.
When you look at the two other choices, you can see they are both bond types. An ionic bond is the exchange of an electron and the subsequent attraction between the positive and negative charges, while a covalent bond is the sharing of electrons. When you look at the question, it specifically states "when they share electrons", meaning that the bond that forms is a covalent bond.
Hope this helped!
Answer:
A. THEY FORM A COVALENT BOND
Explanation:
Have a nice day :)
Which area is most likely to be the safest during a major earthquake?
Answer:
The area with loosely compacted soil is most likely to be the safest during a major earthquake.
Explanation:
Loosely compacted soil are those which are formed due to less stress that is been applied to the soil, as a result of desertification decreases in the soil density and the area whose soil is loosely compacted is the safest place during earthquakes as these areas have increased shear strength and less permeability that would protect you from earthquake as buildings constructed in these areas tends to be hard enough.
Hope it helps!
The safest place during a major earthquake is in a well-constructed earthquake-resistant building, as demonstrated in Niigata, Japan, and Japan’s strict building codes and earthquake drills.
The safest place during a major earthquake is in a well-constructed earthquake-resistant building. For example, some buildings in Niigata, Japan, constructed in the 1950s, remained structurally intact even when the city experienced a destructive earthquake in 1964. Strict building codes and earthquake drills in Japan ensure that structures can withstand seismic activity.
Which would be a result of increased deforestation?
A. The amount of oxygen in the atmosphere would increase.
B. Global warming would increase due to higher CO2 levels.
C. Nitrogen fixation would increase as bacteria died.
D. Fossil fuels would become more common underground.
Answer:
Global warming would increase due to higher CO2 levels. (B.)
Answer:
B. Global warming would increase due to higher CO2 levels.is the correct answer.
Explanation:
deforestation result in a Global warming would increase due to higher CO2 levels.
deforestation is cutting or removal of trees, When all the forest is cleared then only a few trees are left to remove the gases such as carbon dioxide and the carbon stored in the trees is then released into the air in the form of carbon dioxide which causes global warming.
children of abusive parents often learn to be aggressive by imitating their parents. This illustrates the impact of
Children of abusive parents often learn to be aggressive by imitating their parents. This illustrates the impact of cause and effect.
Sunny~ ☺
The children of abusive parents often learn to be aggressive in behavior by imitating their parents. This behavior is an illustration of the Operant conditioning.
What is Operant conditioning?Operant conditioning is also known as the instrumental conditioning. It is a type of associative learning process by which the strength of a behavior of an individual is modified by the reinforcement or punishment given by their parents. It is also a procedure which is used to bring about the learning of children.
Operant Conditioning is concerned with the non-reflexive and voluntary behaviors that are under the control of learners, and deals with the rewarding or punishing target behaviors of an individual to increase or decrease their manifestation.
Four essential quadrants of Operant Conditioning Theory include Positive Reinforcement, Positive Punishment, Negative Reinforcement, and Negative Punishment.
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A city installs recycling centers that take wood products. How might the
recycling centers help increase the availability of wood?
Answer:
recycling centers could plant their own trees or sponser organizations or NGOs to plant trees
Explanation:
Answer: Explanation:
Recycling wood will help the city reduce deforestation and increase availability of wood as the products obtained can be reused as a building material, recycled into mulch for landscaping or pulp for paper production and used as fuel. Recycled wood can be used as landfill for land reclamation. recover all types of uncontaminated timber.
Generally, recycling wood reduces the need to cut down trees by increasing its availability.
which is one function of a protein macromolecule?
A. Making up the code for living things
B. Providing waxy coating on leaves
C. Carrying oxygen in the blood
D. Insulating organs of the body
Answer: B. Carrying oxygen in the blood
Proteins serve various functions, including carrying oxygen in the blood through the action of hemoglobin, a protein that binds and transports oxygen.
One function of a protein macromolecule is carrying oxygen in the blood. Proteins are incredibly versatile and perform a multitude of functions in living organisms. They can be involved in structural support, regulation of cellular processes, muscle contraction, and defense against harmful substances. Specifically, in the context of blood and oxygen transport, the protein known as hemoglobin found in red blood cells is responsible for binding to oxygen and transporting it from the lungs to various parts of the body where it is needed.
What is the taking in of food is called
Answer:
Digesting / digested
Explanation:
I think that's what it's called.
Answer:
Eating or digestion
Explanation:
When you put food in your mouth and it digestives it's called eating. When food goes through the digestive system you get energy. Everyone does it and needs it to survive. Ex. right now i'm eating pretzels and considering eating chips.
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- A. Hazle
What is a clade?
A. A group of organisms with a shared ancestor
B. A trait that an ancestor did not have
C. A group with no shared traits
D. A trait that was passed along
Answer: A. A group of organisms with a shared ancestor
Explanation:a group of organisms believed to have evolved from a common ancestor, according to the principles of cladistics.
Clades are important because they represent a natural way to classify organisms based on their evolutionary relationships. A clade includes all of the organisms that descended from a common ancestor, and can be further divided into smaller clades based on more recent shared ancestry.
What are clades identified as ?Clades are often identified by certain shared characteristics, such as genetic traits or physical features, which are known as "synapomorphies."
Synapomorphies are traits that evolved in the ancestor of a clade and were then passed on to all of its descendants. By looking for synapomorphies, biologists can identify the members of a clade and distinguish them from other groups of organisms that do not share those traits.
One of the key benefits of organizing organisms into clades is that it allows scientists to make predictions about the characteristics of organisms that have not yet been discovered. By knowing the traits of a clade's common ancestor, scientists can infer what traits its descendants are likely to have, and can use that information to guide their search for new species.
By organizing organisms into clades, biologists can gain insight into the history of life on Earth, and better understand the relationships between different groups of organisms.
Thus, Clades also help researchers better understand the patterns and processes of evolution, and provide a framework for studying the diversity of life on Earth.
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Which chemical bond most likely stores the most energy?
O
A. Double carbon-carbon bond
O
B. Single carbon-carbon bond
O
C. Hydrogen-oxygen bond
O
D. Sodium-chlorine bond
The thermostat in a house regulates heat. When the air in a room reaches a predetermined temperature, the thermostat turns off the heat. What type of example is this?
positive feedback
negative feedback
neutral feedback
Answer:
neutral feedback
Which of the following diagrams best represents a mixture?
A.
image
B.
image
C.
image
D.
image
Help Pleaseeee
Answer:
b
Explanation:
The greatest way to illustrate mixtures in chemistry is to physically mix several compounds together. Diagram A is the most accurate representation of mixture.
Option A is therefore correct
How do we explain?Combinations that physically blend forms of substances that do not exhibit chemical bonding and may be separated using physical methods are referred to as mixtures. The materials are not all the same. Examples of mixtures are gases and sugar or salt that has been dissolved in water.
The heterogeneous mixture is referred to as varied, and the uniform composition is referred to as homogeneous. Unlike the previous pictures, which show compounds and molecules, the first diagram shows a mixture since it is composed of different subtypes.
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Scientific research shows that Earth's climate is changing due to human
activities. How can scientific research on climate change help us prepare for
the future?
A. It can help us improve water conservation efforts.
B. It can help us stop storms before they occur.
C. It can help us cool down the planet before it gets too hot.
O
D. It can help us find a new way to make more water.
Answer:
C. It can help us cool down the planet before it gets too hot
Explanation:
It is a fact that the human activities are changing the atmosphere. The atmosphere is warming up naturally, bu the human activities are increasing that process, which can create lot of problems in the future. The scientists can come in very handy and helpful for this problem. The scientists are constantly trying to find new solutions that are eco-friendly, and that will minimize and eliminate the human effect on the atmosphere. Lot of new inventions have been developed, and all of them have been with the purpose to cool down, or at least leave the natural process of warming of the atmosphere, while stopping the human influence. Unfortunately, it is not the problem in the technology invented by the scientist for this problem to be solved, but it is the governments and people around the world that are not willing to implement them.
The cluster of developing cells from conception until birth is called an
Answer:
I believe it's "Embryo"
Explanation:
Hope my answer has helped you if not i'm sorry.
Answer:
Embryo
Explanation:
Just took the test.
Hope this helps! :)
the image shows a mountain peak in asia which force most likely created this mountain
Answer:
A) erosion
Explanation:
Answer:
The answer is compression.
Explanation:
58:32
Which is the cell structure that is made of DNA that gives the master instructions for the cell?
O
centromere
chromosome
allele
gene
Save and Exit
Option B: The chromosome is the cell structure made of DNA that gives the master instructions for the cell. Chromosomes carry an organism's genetic code and are crucial for DNA replication and distribution. They ensure that each new cell receives the correct genetic information during cell division.
The structure made of DNA that gives the master instructions for the cell is the chromosome. Chromosomes are found in the nucleus of eukaryotic cells and they carry the genetic information necessary for the growth, development, and functioning of organisms.
To elaborate:
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. During cell division, chromosomes ensure that DNA is accurately copied and distributed in the vast majority of cell divisions.The DNA in chromosomes contains genes, which are specific sequences of nucleotides that code for proteins and other products necessary for cellular functions.The chromosome is crucial because it organizes the DNA into manageable units, allowing for accurate replication and distribution during cell division, ensuring that each new cell receives the correct genetic instructions.For example, in humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Each parent contributes one chromosome to each pair.
according to the endosymbiotic theory, large prokaryotic cells may have engulfed smaller prokaryotic cells over 1.5 billion years ago. if the smaller cells survived, the larger cells may have eventually evolved into eukaryotic cells. how would you describe the relationship between the original prokaryotic cells?
The original prokaryotic cells had a symbiotic relationship, leading to the evolution of eukaryotic cells with endosymbionts becoming organelles within the host cells.
This symbiotic relationship led to the evolution of the first eukaryotic cells, with the endosymbionts becoming integral organelles like mitochondria and chloroplasts within the host cells, eventually making them inseparable.
Select the correct answer from each drop-down menu. Because vitamins carry out various functions in the body, deficiency of different vitamins can have varied effects on the body. The primary role of vitamin D in the body is , and its deficiency may result in .
Answer:
Primary role of vitamin D is to absorb calcium. It along with calcium, helps to keep bones strong. It also help to make the bone brittle.
Deficiency of vitamin D causes the bones to lose their strength. If body does not get enough vitamin D, then absorption of calcium is lost resulting in osteoporosis in adults and rickets children.
Answer:
Because vitamins carry out various functions in the body, deficiency of different vitamins can have varied effects on the body. The primary role of vitamin D in the body is calcium absorption, and its deficiency may result in rickets.
Hope this helps :3
When is a hurricane considered to have made landfall?
A. When at least one inch of rain occurs
B. When the eye reaches the land mass
C. When the outer wind bands make landfall
D. When it moves inland from the coast
3. Roads in urban areas are generally
Answer:
parallel and intersect at right angles
Explanation:
The roads in the urban areas tend to be very well organized and constructed. They tend to be parallel to each other, and also to intersect at right angels. The reason for this kind of building of the roads in the urban areas is to make the movement in the urban areas much easier and more efficient, mostly putting the accent on the traffic. It is a fact that the traffic is a big problem in the urban areas, so by constructing the roads in a well organized manner, the traffic jam eases up and the citizens can move more easily and quickly.
Answer: C
Explanation: I am doing the class as well
The first embryophytes in the plant kingdom???
a. Algae
b. Bryophytes
c. Pteridophytes
d. Gymnosperms
The first embryophytes were bryophytes, which include mosses and liverworts. They are considered the first land plants to have the capacity to form an embryo within protective structures. However, they lack the vasculature system seen in higher-order plants.
Explanation:The first embryophytes in the plant kingdom were bryophytes. Embryophytes are land plants that include all green plants, ranging from mosses to lush green trees. The term 'embryophyte' primarily refers to plants that are capable of forming an embryo within protective structures. The first plants to evolve this ability were bryophytes, which include mosses and liverworts.
These plants don't possess a vasculature system as seen in higher-order plants (pteridophytes, gymnosperms, angiosperms), and they don't produce seeds. Bryophytes are mostly distinguished by their life cycles, characterized by dominant gametophytes stage. They reproduce via alternation of generations where the dominant phase is the haploid gametophyte, which is contrasted with the vascular plants where the sporophytes are the dominant stage.
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A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?
density dependent
density independent
population dependent
population independen
The correct answer is B. Density independent
Explanation:
In biology, factors that limit a population are known as density limiting factors. These factors are classified into density-dependent if they affect populations with a high density such as predation or food availability or as independent if they affect different populations of animals despite their density which includes mainly disasters such as fires or floods.
This means the forest fire described is a density-independent factor because the population of birds and trees were reduced or limited but this did not occur because of the density of the population as all species in the forest are affected no matter if the population if high or low.
Albinism is an autosomal recessive condition. Which circle graph above shows the genotype probability when an albino female
mates with a male that is heterozygous for the albinism trait?
Answer choice F
Answer choice G
Answer choice H
Answer choice J
Answer:
A; Half Aa and Half aa.
Explanation:
If you make a punnett square, the two genotypes will be Aa and aa, each half.
(sorry about the messy pic)
Answer:
Answer choice F
Explanation:
Since albinism is a recessive characteristic, let's assume that it has the "aa" alleles, so an individual who does not have albinism would have the "AA" alleles if he were homozygous and "Aa" if he were heterozygous.
If an albino (aa) female were to mate with a heterozygous, non-albino (Aa) male, we could fill in a punnet squad to determine what the offspring would be like. As we can see in the punnet square attached below, the result of this crossing would be 50% offspring "Aa" and 50% offspring "aa".
Read the article and use the information to answer the following questions
Hormones
Follicle-stimulating hormone (FSH) is produced by the .
Its role is to .
Luteinizing hormone (LH) is produced by the .
Its role is to
Answer:
anterior pituitary gland
cause the egg to mature
anterior pituitary gland
cause mature egg to be released from ovary
Explanation:
just did it myself lol
Hormones are produced by endocrine cells. Hormones like FSH is released by pituitary gland and helps in menstrual cycle control, LH also comes from pituitary gland and helps in maintaining pregnancy.
What is endocrine cell?Endocrine cells are ductless cells which release their secretion i.e., hormones directly into blood.
The hormone FSH (follicle stimulating hormone) is secreted by pituitary gland. It helps in controlling menstrual cycle and stimulation of ovaries for egg production.
The hormone LH (Luteinizing hormone) is also secreted by pituitary gland, which helps in physical development and maintaining pregnancy.
Thus, both FSH and LH are produces by pituitary gland and their functions are to control menstrual cycle and maintaining pregnancy respectively.
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Why is it a good idea to study experimental subjects in their natural
environment?
A. So that they respond to the test as they would under normal
conditions
B. So that no one else will know what is being studied
ООО
c. So that the experiment is cheaper and easier to conduct
D. So that a specific problem can be solved as quickly as possible
Answer: A. So that they respond to the test as they would under normal
conditions
Explanation:
It is a good idea to study experimental subjects in their natural environment because they respond to the test as they would under normal conditions (Option A).
A good experiment usually has into account all the variables that can affect the variable to be measured (i.e., the dependent variable).Thus, it is more suitable to test a hypothesis (either reject or confirm) only when having into account all variables that might affect the experimental group in normal conditions.A good experiment also uses a control group in order to make comparisons with the experimental group.A control group is defined as an experimental group consisting of subjects/individuals who do not receive the experimental treatment.In conclusion, it is a good idea to study experimental subjects in their natural environment because they respond to the test as they would under normal conditions (Option A).
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Chlorophyll is the primary green pigment responsible for plant color. The molecule appears green because it absorbs all wavelengths of light except for green, which it reflects back for us to see. In the autumn, trees and plants undergo changes in their pigments. Which of the following best describes why we observe many trees change their color to red, orange, or yellow in the autumn?
A. As chlorophyll becomes colder, it changes its color from green to red, orange, or yellow.
B. Chlorophyll breaks down, exposing other pigment molecules we normally don't see.
C. The soil produces different nutrients in the winter that are absorbed into the plant and cause color change in the leaves.
D. Tree leaves stop producing chlorophyll in cold temperatures and produce other pigment molecules.
Answer:
The correct answer is option B, that is, chlorophyll breaks down, exposing other pigment molecules we normally don't see.
Explanation:
Leaves are colored because of the presence of the molecules known as pigments. Chlorophyll is the pigment, which makes the leaves to appear green. Chlorophyll is an essential element for plants as it helps the plant to synthesize food with the help of sunlight.
At the time of summer and spring, when there is enough amount of sunlight available, the plants produce loads of chlorophyll pigment. However, in autumn when it begins to get cooler, some of the plants stop producing chlorophyll, and those plants dissociate chlorophyll into smaller constituents. With the diminishing of chlorophyll, the other pigments begin to show their colors, and thus, the leaves turn red or yellow at the time of fall.