Answer:
The answer is D
Explanation:
Just got it right. Trust me its not A.
Which item is the best example of a wheel and axle?
A.
automobile engine
B.
door knob mechanism
C.
bicycle
D.
telescope
how could you estimate the total number of nests in Florida
To estimate the total number of nests in Florida, researchers could conduct a survey or census of selected areas and extrapolate the total based on the proportion observed in the surveyed areas.
Explanation:To estimate the total number of nests in Florida, one approach could be to conduct a survey or census of selected areas in the state. Researchers could choose representative areas and count the number of nests they observe in those areas. They could then extrapolate the total number of nests in Florida based on the proportion of nests observed in the surveyed areas.
For example, if researchers surveyed five different areas and observed a total of 100 nests, and if they know that those areas represent 10% of the total suitable nesting habitats in Florida, they could estimate that there are approximately 1000 nests in Florida (100 nests / 0.1).
It is important to ensure that the surveyed areas are representative and that the counting methods are accurate to obtain reliable estimates.
A researcher can estimate the total number of nests in Florida by using sampling techniques like quadrat sampling or line transect methods to count nests in representative areas and extrapolate these numbers to a larger scale. The mark and recapture method, if adapted for nests, and growth rate trends from existing studies can also be useful in making these estimates.
Explanation:To estimate the total number of nests in Florida, a researcher might use a variety of methods, including direct counts, sampling, and extrapolation based on known densities. Direct counts would involve physically counting all nests in a given area, but this is often impractical for large geographic regions like Florida. Instead, sampling techniques such as quadrat sampling or the line transect method can be used to count nests in representative areas and then extrapolate these numbers to estimate the total number of nests across the state.
Another effective technique is the mark and recapture method, which, although it is more commonly used for estimating animal populations, could theoretically be adapted for nest counts if one can mark and later identify previously counted nests. Data indicating an average growth rate in nest numbers, such as the 36% yearly increase observed in a previous study noted in Box 15.6 Table 1, can also inform estimates of total nest numbers over time.
How might a theory relate to a model
Explain how sunlight is the primary source of energy for your own life.
The significant energy intake, especially by the sun, supports the living mechanism or phase. A further explanation is below.
Sunlight permits the utilization of photosynthetic activity for vegetation, algae as well as proteobacteria just to transform or synthesize carbon as well as water into biological substances such as sugars.This same mechanism seems to be a key bio-material primary source throughout the environment or the whole ecosystem.Learn more about sunlight here:
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What name is given to elements with the same number of protons but differing numbers of neutrons?
Answer: The name given to elements with the same number of protons but differing numbers of neutrons is Isotope.
Explanation:
When the two different atoms of same element having same number of protons but are differing number of neutrons than those elements are known as isotopes of that element.
For these species, atomic number remains the same but atomic mass differs.
For Example:
[tex]_{17}^{35}\textrm{Cl}\text{ and }_{17}^{37}\textrm{Cl}[/tex] are the two isotopes of chlorine having different masses and same atomic number.
Hence, the correct answer is isotopes.
what kind of consumer is a grass carp
What is the difference between responsiveness and homeostasis?
Responsiveness is an organism's ability to adjust to changes in its environment, while homeostasis is an organism's ability to maintain a stable internal environment despite changes in external conditions. As an example, pulling a hand away from something hot showcases responsiveness, whereas maintaining body temperature in cold conditions is an example of homeostasis.
Explanation:The terms responsiveness and homeostasis both refer to certain physiological functions in organisms, but they represent different concepts.
Responsiveness, also known as irritability, is the ability of an organism to adjust to changes in its internal or external environment. For example, if you touch something hot, your body responds by pulling your hand away. This is an example of responsiveness.
On the other hand, homeostasis is the ability of an organism to maintain a stable internal environment despite changes in external conditions. Your body does this by controlling its temperature, pH level, glucose level, and other variables. For instance, when it's cold outside, your body maintains its internal temperature, this is an example of homeostasis.
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What allows Nancy to run without watching her feet and hit a baseball without focusing on the bat ?
Nancy's ability to run without watching her feet and hit a baseball without focusing on the bat is due to proprioception. It is a biological sense that allows perception of the location and movement of our body parts in space, enabling people to perform tasks without consciously focusing on them.
Explanation:The ability of Nancy to perform these tasks without consciously focusing on them can be attributed to a concept in biology known as proprioception. Proprioception is the sense that lets us perceive the location, movement, and action of our bodies and its parts in space, even without looking at them. It's what allows us to do things like touch our nose with our eyes closed, run without watching our feet, or hit a baseball without focusing on the bat. When Nancy runs or swings a bat, her body is sending continuous feedback to her brain regarding the position and movement of her limbs and muscles. This feedback, interpreted by the brain, enables her to adjust her movements and perform the desired action even without consciously focusing on it.
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What is scientific consensus
Answer:
In science a theory is said to be valid when there is a true scientific consensus, it cannot be judged only based on intuition, faith or authoritarianism of any kind.
This consensus is created in the scientific community based on its empirical, experimental and conceptual logic.
The scientific consensus accepts the veracity of theories from the repetition of tests under the same conditions and theoretical assumptions.
which stage of the scientific process enables a scientist to check the work of another scientist?
Answer:
Peer review
Explanation:
It provides veracity to the already drawn conclusion of the scientific investigation before a report is publicly published in scientific journals. Other scientists can replicate the experiment to see whether they lead to the same conclusions. This ensures that the information is reliable to be cited or even built upon by other scientists.
The number of possible genetically different gametes for an organism equals 2N, where N is the number of pairs of chromosomes. If an organism has 5 pairs of chromosomes, how many different gametes can it produce?
Answer:
The answer is 2^5 = 32
Explanation:
have a nice day.
HELP Write a paragraph as if you are a particle of digested food that will be excreted as feces. Start in the large intestine and finish as the feces leaves the body.
Ramona and her family agree that what got Ramona through law school is what got her through obstacles all her life: her belief in her ability to succeed even when things are tough. Which part of the social cognitive theory addresses this view on Ramona’s successes in life?
A.
observational learning
B.
reciprocal determinism
C.
self-efficacy
D.
response tendency
Answer:
c
Explanation:
Identify one organism that is not extinct?
During the Cambrian explosion that began the Paleozoic era, the new many forms of life that evolved....
A.Lived on land
B.Were invertebrates that lived in the sea
C. Were vertebrates covered with scales or fur
D. Were single celled
Please Help Me!!
Answer:
The answer is B
Explanation:
I got it right on the quiz
Hope it helps
What are hot spots caused by?
A. volcanoes
B. Divergent plate boundaries
C. Mantle plumes
D. Subduction Zones
why is science used by some people to support their beliefs?
I need help please. (30 points
Part A: Explain why and how the polar covalent bonds found in water molecules are responsible for water's ability to dissolve many substances, particularly ionic compounds such as salt. (3 points)
Part B: Identify the solvent and the solute in the solution that has been created in part A from the dissolving of salt in water. (1 point)
Final answer:
Water's polar covalent bonds create a slightly positive and negative charge, allowing it to dissolve ionic compounds by forming hydration shells around the ions. In a solution of salt in water, water is the solvent and salt is the solute.
Explanation:
Part A: Polar Covalent Bonds in Water and Solubility
Water molecules have polar covalent bonds because of the difference in electronegativity between hydrogen and oxygen atoms. This creates a dipole moment with oxygen having a partial negative charge and hydrogen atoms having a partial positive charge. The ability of water to dissolve many substances, such as ionic compounds like salt, is due to these polar covalent bonds.
When salt is added to water, its ions (sodium and chloride) are attracted to the opposite charges on the water molecules, leading to the formation of hydration shells. This is why the sodium ions are surrounded by the partially negative oxygen ends of the water molecules, while the chloride ions are surrounded by the partially positive hydrogen ends. The formation of these spheres of hydration effectively separates the ions in the solvent, hence dissolving the salt.
Part B: Solvent and Solute Identification
In the solution created from the dissolving of salt in water, water acts as the solvent, which is the substance doing the dissolving. Salt (sodium chloride, NaCl), is the solute, which is the substance that is dissolved.
You are looking at tissue under a microscope. One cell shows half the amount of DNA of some of the other cells. This cell is most likely to be in which phase of the cell cycle?
a? b? c? or d?
When the DNA begin to coil and condense, the cell is in _____
The right answer is G2 phase, in order to prepare itself for the M phase.
Phase G2 is a short phase (3 to 4 hours) that starts as soon as replication is enabled; the cell is diploid.
SMC (Structural Maintenance of Chromosomes) Proteins: Condense chromatin = a kind of motor that causes the coil of chromatin.
Histones H1 (internucleosomal histones) are also involved in this condensation.
primary and secondary air pollutants can coexist in the atmosphere
true or false
What is considered an abiotic factor in a marine ecosystem?
Answer:
Salinity
Explanation:
abiotic means non-living, salt does not live..
whats the difference between a heterogeneous and homogeneous mixture
The terms heterogeneous and homogeneous refer to mixtures of materials in chemistry. The difference between heterogeneous and homogeneous mixtures is the degree at which the materials are mixed together and the uniformity of their composition.
A homogeneous mixture is a mixture where the components that make up the mixture are uniformly distributed throughout the mixture. The composition of the mixture is the same throughout.
There is only one phase of matter observed in a homogeneous mixture.
You can't pick out components of a homogeneous mixture or use a simple mechanical means to separate them. You can't see individual chemicals or ingredients in this type of mixture. Only one phase of matter is present in a homogeneous mixture.
A heterogeneous mixture is a mixture where the components of the mixture are not uniform or have localized regions with different properties. Different samples from the mixture are not identical to each other. There are always two or more phases in a heterogeneous mixture, where you can identify a region with properties that are distinct from those of another region, even if they are the same state of matter (e.g., liquid, solid).
Usually, it's possible to physically separate components of a heterogeneous mixture. For example, you can centrifuge (spin out) solid blood cells to separate them from the plasma of blood. You can remove ice cubes from soda. You can separate candies according to color.
The rungs or steps of DNA are made up of ____ which are attached to the sides or railings of DNA, which are made up of ___.
Answer: The steps are made of nitrogenous bases; deoxyribose sugars linked with phosphates.
Explanation: The rungs of the DNA are made of nitogenous bases (The nitrogenous bases are adenine (A), thymine (T), guanine (G) and cytosine (C) ) they are held together by weak hydrogen bonds.
The railings of the DNA are made of deoxyribose sugars which are alternating with phosphates. This part of the molecule is referred to as the "backbone".
Answer: The steps are made of nitrogenous bases; deoxyribose sugars linked with phosphates.
What does it mean if a form of energy appears over the arrow in a chemical reaction?
Carbon Dioxide and____________ are outputs of cellular respiration.
A. water
B. nucleic acids
C. energy
D. respiration
Which statement is true about a liquid but not a gas? Question 7 options:
A. It has more internal energy than the solid state.
B. It has close to a constant volume as pressure is applied to it.
C. It allows particle to move past each other relatively easily.
D. It will change shape and take the shape of its container.
the answer is D on usatestprep
The right option is; D. It will change shape and take the shape of its container.
Liquid is one of the states of matter and is composed of molecules that are held together by intermolecular bonds. Liquid has a fixed volume, but it does not have a fixed shape. It takes the shape of its container. The density of a liquid is influenced by pressure, and it has surface tension.
In terms of energy, what is the difference between glucose and ATP?
Glucose is a monosaccharide whereas ATP is energy carrying molecule.
Glucose is a monosaccharide which is made of six carbons while on the other hand, adenosine triphosphate (ATP) is energy carrying molecule which is formed from phosphate which releases energy that is used by the body for doing various activities.
Glucose is used by the mitochondria of the cell where it can be broken down in order to release energy in the form of ATP molecules that can be used by the cells for different activities.
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A student is observing a cell on a microscope slide and notices cell walls and membrane-bound organelles The student concludes that the cells
A. must be animal cells
B. must be bacteria cells
C. must be plant cells
D. could be all of the above
The right answer is C. must be plant cells.
The bacteria certainly have a wall but do not have organelles.
Animal cells have no wall.
The plant cells are the very numerous elementary units constituting the vegetable organisms.
They generally comprise a cell nucleus surrounded by a cytoplasm, various organelles or plastids, all protected by a cell membrane. They can measure between 10 and 200 μm.
Plant cells are living systems. They are very different from the cells of organisms belonging to other eukaryotes. The main distinguishing features are:
*Large central vacuole (surrounded by a membrane, the tonoplast), which maintains the turgor of the cell and controls the exchange of molecules between the cytosol and the sap. These vacuoles serve as bins for plant cells, at the end of cell life, these vacuoles take up 90% of the cell space.
*A pectocellulosic wall made of cellulose and proteins, as well as lignin in many cases, and deposited by the protoplast outside the cell membrane. It is opposed to the cell wall of fungi, made of chitin, and prokaryotes, made of peptidoglycans.
*Plasmodesms, connecting the pores of the cell wall, which allows each plant cell to communicate with adjacent cells. This system is different from the network of hyphae present in fungi.
*Plastids, especially chloroplasts, which contain chlorophyll, the pigment that gives plants their green color and is involved in the process of photosynthesis.
*The absence of centrosomes that are present in animal cells.