Answer:
Option a (manipulated variable) would be the appropriate choice.
Explanation:
To analyze the influence on something like a dependent variable, another modified variable seems to be an important variable responsive to modifications in quite an analysis. Plainly defined, the variable has been adjusted to determine its effect on the overall outcome of the study. There would be only one manipulated component in a correctly planned analysis.The other options offered are not relevant to the situation described. So, the solution above is the best one.
Answer:
a
Explanation:
Trilobites
Trilobites were crab-like animals
that lived in ancient seas.
Scientists have discovered many
trilobite fossils all over the world.
However, the fossils only appear
in rocks that are at least 250
million years old. In more recent
rocks, their fossils are absent.
1. What conclusion would you
draw about trilobites based on
their appearance and
disappearance in the fossil
record
Answer:
The trilobites probably disappeared because either: A) they evolved into something else, or B) they died out due to the amounts of land rising out of the ocean.
Some fish that live in pitch-dark caves have things that look like eyes but do not see.
Are their eyes best described as an exaptation or a vestigial adaptation?
Answer:
It is adaptation
Explanation:
I had this question on my test last week
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Marcus is hanging a porch swing on his front porch. The first thing he has to do is attach two springs to the ceiling. Then, he fastens the
swing to the springs so that they can stretch and support the weight of the swing. Which two types of potential energy do the springs have?
A. elastic
B. gravitational
C. kinetic
D. stretched
The two types of potential energy that the springs have when Marcus hangs the porch swing on his front porch are (A)elastic potential energy and (B)gravitational potential energy.
The elastic potential energy is stored in the springs due to their deformation from their natural state. The gravitational potential energy is stored in the swing due to its height above the ground, which is determined by the position of the springs.
When Marcus attaches the springs to the ceiling, the springs are stretched and deformed from their natural state. As a result, they store elastic potential energy. This energy is proportional to the amount of deformation, which in turn is proportional to the weight of the swing and the distance the springs are stretched.
When Marcus fastens the swing to the springs, the gravitational potential energy of the swing is determined by its height above the ground. The higher the swing is from the ground, the greater its gravitational potential energy. The swing's height is determined by the length of the springs and their position relative to the ceiling
Therefore, the correct answers are A. elastic potential energy and B. gravitational potential energy.
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A cell with two pairs of each set of chromosomes is called a diploid cell. These cells are typically found throughout the body tissues and are called [ germ / somatic ] cells.
Answer:
somatic
Explanation:
A) what is a niche?
B) what is meant by the term 'ecosystem'?
Answer:
A niche is the “job” or role an organism plays in its community.
Ecosystem refers to a biological community of interacting organisms and their physical environment.
Explanation:
what is the biodiversity score of farmland (maize)?
Answer:
Required Answer:-The intensification of agriculture has caused dramatic declines in farmland biodiversity (Carvalheiro et al., 2013; Senapathi et al., 2015). Since the 1990s, agricultural policies have been developed in Europe to mitigate this loss through agri-environmental schemes (AES). One AES is “sown wildflower strips”, the aim of which is to create new ecological infrastructures by sowing attractive wild flowers on arable land (a few % of the cultivated area). These ecological infrastructures fall within our definition of MIMS since they represent a massive introduction of managed species in the landscape.
If the heart becomes damaged or weakened, how will this affect the body’s systems?
The circulatory system will not function well, which will affect all other body systems.
Only the circulatory and respiratory systems will be affected.
Only the nervous system will be unable to function.
The muscular system will strengthen the heart.
Explanation: your answer is A
Answer:
The circulatory system will not function well, which will affect all other body systems. A.
Explanation:
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A cell is to a board game as ____________ is to the rule book.
Why are organisms classified?
A. biologists use a system of classification to group organisms based on their size
B. biologists use a system of classification to group organisms based on their political view
C. biologists use a system of classification to group organisms based on their birth date
D. biologists use a system of classification to group organisms based on their similarities
For the initial year of a summer camp, 56 girls and 64 boys enrolled. Each year thereafter, 18 more students enrolled in the camp. Let t be the time (in years) since the camp opened. Part A: Write a function rule for the total number of students enrolled t years after the camp opened.
Answer:
[tex]f(t)=120+18t[/tex]
Explanation:
We know that for the initial year of a summer camp, 56 girls and 64 boys enrolled.
The total children enrolled for the initial year can be calculated as :
[tex]56+64=120[/tex]
Each year, 18 more students enrolled in the camp.
The variable ''[tex]t[/tex]'' represents the time in years since the camp opened.
The following expression :
[tex]18t[/tex]
represents the extra children enrolled each year
If we sum, we can obtain the following expression :
[tex]120+18t[/tex]
which is the function [tex]f(t)[/tex] for the total number of students enrolled [tex]t[/tex] years after the camp opened.
The function rule is [tex]f(t)=120+18t[/tex]
For example, when [tex]t=0[/tex] ⇒
[tex]f(0)=120+18(0)=120[/tex]
which is the original amount of enrolled children when the summer camp opened.
When [tex]t=3[/tex] ⇒
[tex]f(3)=120+18(3)=174[/tex]
which is the expected value for the total number of students enrolled 3 years after the camp opened.
What is the definition of Osmosis?
Answer:
a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
Explanation:
Osmosis is a special case of diffusion. Water, like other substances, moves from an area of higher concentration to one of lower concentration. ... In this example, the solute cannot diffuse through the membrane, but the water can. Water has a concentration gradient in this system....!!!!!!!!!...!!!!!!
How do you know that energy and matter are conserved during the process of cellular respiration?
Answer:
Energy and matter are conserved in cellular respiration because it has identifiable inputs and outputs. These can be modeled with chemical equations.
Food undergoes chemical reactions in organisms to generate new molecules for growth or energy. Therefore, energy and atoms are conserved during cellular respiration.
What is conservation of energy and matter in cellular respiration?The law of conservation of energy states that energy cannot be created or destroyed but can be changed from one form to another. The law of conservation of matter states that the total mass within a closed system that does not allow matter or energy to escape should remain constant. However, the law of conservation of energy states that energy can change from one form to another.
The process of cellular respiration is an example of a chemical reaction, which involves the transformation of one type of matter into another. A chemical equation describes this change in molecular structure. This is the cellular respiration chemical equation:
[tex]C_{6} H_{12} O_{6} + 6 O_{2} = > 6CO_{2} + 6H{2}0 + energy[/tex]
(Glucose + Oxygen yields Carbon Dioxide + Water + Energy)
Therefore, the amount of carbon dioxide atoms released by respiration is the same as the amount of atoms in the oxygen and carbon that were changed.
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What is the complementary strand of DNA that is made during DNA replication if the template/parent strand of DNA reads ATG GGC CAT?
A. TAC CCG GTA
B. UAC CCG GUA
C. ATG GGC CAT
D. CGA AAT AGC
The complementary strand of DNA that is made during DNA replication if the template/parent strand of DNA reads ATG GGC CAT is TAC CCG GTA. Thus, the correct option for this question is A.
What is DNA replication?DNA replication may be defined as a type of biological process through which two identical replicas of DNA form from one original DNA molecule. This process makes a copy of the DNA in a cell is made before the cell divides.
When it comes to the complementary strand of DNA, either of the two chains makes up a double helix of DNA, with corresponding positions on the two chains being composed of a pair of complementary bases.
For example, if Adenine A is present in the parental DNA, then it should be complementarily bounded to the thymine and vice versa. Similarly, if Cytosine is present in the parental strand of DNA, then it should be complementarily bounded by guanine and vice versa.
Therefore, the correct option for this question is A.
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10 common wetland plants native to Georgia
Answer: its Georgia
Exampl:
review the micrographs of cells shown in figure 8-3. what information about cells do these micrographs suggest, which might not be accurate?
Answer:
The micrographs of cells shown in figure 8-3. what information about cells do these micrographs suggest is explained below in details.
Explanation:
Micrographs are the intensified images collected from small microscopes. Cell micrographs are often obtained from tissue specimens and show a constant mass of cells and inside compositions that are difficult to distinguish individually. It provides accurate images of the exteriors of cells and whole plants that are not imaginable by TEM. It can also be practiced for particle counting and size resolution, and method control.
help me with this please
Answer:
A. Type of rose bush
B. The number of flowers on each bush
C. Sunlight ,Amount Of Water, Temperature
If a cell completes the cell cycle, then the resulting cells also complete the cell cycle, how many total cells have been formed?
1. 2
2. 4
3. 6
4. 8
Please hurry i got 10 min left in class and dont know answer );
how does the cytoskeleton help maintain cell shape?
Answer:
Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest. ... Microfilaments also provide some rigidity and shape to the cell. They can depolymerize (disassemble) and reform quickly, thus enabling a cell to change its shape and move.
Explanation:
A paramecium's contractile vacuole pumps water out of the cell as a form of active transport.
1.True
2.False
Answer: true
Explanation:
Answer:
true
Explanation:
Welp help :( I need a very good explanation
Explanation:
The way people use land can affect the levels of nutrients and pollution in soil. Any activity that exposes soil to wind and rain can lead to soil loss. Farming, construction and development, and mining are among the main activities that impact soil resources.Over time, many farming practices lead to the loss of soil.
And as for land ita the same we construct bulidings and dig mines it damages the land. And as land is imporatant for survival of all the of the biosphere we are definntelt responsible for it as well.
Our water resources face a host of serious threats, all of which are caused primarily by human activity. They include sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth. And again it it affects the biodiversity of water preety badly. The marine animals suffer because of our causes.
Biomagnification occurs when the concentration of a pollutant increases from one link in the food chain to another (i.e. polluted fish will contaminate the next consumer and continues up a tropic food web as each level consumes another) and will result in the top predator containing the highest concentration levels. It starts a chain reaction originating from our doings.
pollutants accumlate in bodies of fishes beacuse, they eat unhygienic and non fishFriendly stuffs,it passes on to onother fish.
Humans have come to rely on fossil fuels to power cars and planes, heat homes, and run factories. Doing these things pollutes the air with carbon dioxide. Other greenhouse gases emitted by natural and artificial sources also include methane, nitrous oxide, and fluorinated gases. It leads to destroying of ozone layer in antartica and durther affecting the biodiversity of animals as well as of ourselves.
Biodiversity is the amount of variety of life on Earth. Healthy ecosystems and rich biodiversity: ... Increase ecosystem productivity; each species in an ecosystem has a specific niche—a role to play. Support a larger number of plant species and, therefore, a greater variety of crops. Even if a single animal is cut from the biodiversity( ie. Extinct) the whole of the food chain will collapse
Threats to Biodiversity. The greatest threat leading to the loss of biodiversity is the human race. As our population grows together with our need for food, water, industry, transportation, and home comforts, it takes over natural ecosystems and replaces them with unnatural.
Identify locations of critical wildlife habitat for species at risk and the threats to these areas. Where possible, eliminate threats and maintain natural areas. Leave critical wildlife habitat undisturbed, especially nesting and denning sites. Promote wildlife use by setting up bird and bat houses. And reduce the no of cars and automobiles there are. Avoid usimg of plastic and toxic substances as it causes further harm to biodiversity.
In the its our fault thw animals are close to extinction or alredy extinct. The least we can so is help to conserve and preserve our beautiful and diverse biodiversity.
:)
Examine the unbalanced equation.
KClO3 → KCl + O2
What is the best classification for the unbalanced equation's reaction?
A.) decomposition
B.) combustion
C.) displacement
D.) synthesis
The answer is A.) decomposition
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Which statement best explains the shape of these layers of rock?
O A. Stress caused by forces that pull on both sides of an area of the
crust made the rock melt.
O B. Stress caused by tectonic plates moving at a transform boundary
made the rock break.
O C. Stress caused by a collision between two tectonic plates made the
rock bend
O D. Stress caused by the weight of the upper layer of rock made the
rock tilt
Answer:
C. Stress caused by a collision.........made the rock bend.
Answer:
C. Stress caused by a collision between two tectonic plates made the rock bend
Explanation:
All cells are able to continue living because of their ability to (1) produce food (2) excrete wastes (3) Produce offspring (4) Produce hormones
Answer:
It is 1) produce food
Explanation:
I had this question on my test last week
A LEAF IS GREEN BECAUSE……
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Electrons fill energy levels starting with the levels __________________
(close to or away from) the nucleus.
Electrons fill energy levels starting with the levels that are close to the nucleus. The levels are called orbitals and each orbital must be filled before the next orbital can be filled also the 1st orbital can only hold 2 electrons.
What kingdom is the sting ray in?
Answer: they are found in Plesiobatis daviesi
Why does it take longer for your body to break down complex carbohydrates than simple carbohydrates?
Explanation:
complex carb pack more nutrients are simple carbs that are high in fiber and digest more slowly this makes them more ceiling which means a good option to for weight control
The small intestine is where carbohydrates are chemically broken down, instead of the stomach. The disaccharides and pancreatic amylase complete the chemical cleavage of digestible carbs.
What are the complex carbohydrates in the body?The building blocks of large polysaccharides are lengthy, complicated chains of sugar molecules.
Peas, beans, whole grains, and vegetables are examples of foods that are sources of complex carbohydrates. The body converts simple and complex carbohydrates into glucose (blood sugar), which is then used as fuel.
Longer-lasting blood glucose increase and longer-lasting energy elevation are produced by complex carbs.
Therefore, complex carbs are more efficient in giving the body energy, which is the main purpose of carbohydrates.
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- The primary job of the mRNA molecule is to: *
Bring amino acids to the ribosome
Transcribe a message from a DNA molecule
Translate the codons into a protein
Answer:
transcribe a message from a DNA molecule
Explanation:
What do cells need to do between divisions to make sure that they don’t just get smaller and smaller?
Answer:
The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
what is sexual reproduction
Answer:
the production of new living organisms by combining genetic information from two individuals of different types (sexes). In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).
Answer:
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