Answer:
A control group setup in an experiment is used to see if there are other variables in play during the experiment. Say I was to test which type of blood is a shark's favorite, my control would be putting red paint in one of the set ups to see if the shark is just interested in the red color of blood, instead of the other types of blood.
Explanation:
Answer:
The control group does not receive the independent variable during the experiment.
Explanation:
The group that will receive the independent variable during the experiment is the experimental group. The dependent variable is what you will measure as a result. The control group is not receiving the independent variable during the group, as it is what you're measuring the experimental group to.
Please help now. I only have 3 minutes
Answer:
B
Explanation:
What organism has a diploid number of 32 what would be the number of chromosomes found in the cells of the organism undergoing mitosis?
Answer:
American badger (Taxidea taxus) and Alfalfa (Medicago sativa)
Explanation:
American badger (Taxidea taxus) and Alfalfa (Medicago sativa) have 32 number of chromosomes in the somatic cells while on the other hand, there are 18 number of chromosomes in the sex cells of both American badger and Alfalfa due to haploid number of chromosomes. When the cell of American badger and Alfalfa undergoes mitosis, the parent cell divides and produces two daughter cells having diploid number of chromosomes.
What are the seven 7 levels of
classification?
Answer:
from largest to smallest the 7 levels of classification are: Kingdom, Phylum, Class, Order, Family, Genus, Species
Explanation:
^
byun walked 15 blocks in 25 minutes what was his average speed
Answer:
[tex]\frac{3}{5}[/tex]blocks/minutes
Explanation:
Given parameters:
Number of blocks walked = 15blocks
Time taken for the walk = 25minutes
Unknown:
Average speed = ?
Solution:
In this scenario, the average speed is the rate of walking the blocks per unit of time;
Average speed = [tex]\frac{number of blocks}{time}[/tex]
Input the parameters and solve;
Average speed = [tex]\frac{15}{25}[/tex]blocks/minutes
Average speed = [tex]\frac{3}{5}[/tex]blocks/minutes
What has helped the ecosystems survive through the Earth's changes?
Human activity
Biodiversity
Machines
Mr. Attis
Answer:
its human activity that change ecosystems
Ecosystem survival during earth change is helped by biodiversity, which produces a quality environment, hence option b is correct.
What factors affect the ecosystem?Ecosystem drivers encompass both natural and human-made elements. For example, habitat change and over-exploitation are direct causes that overtly affect ecological processes.
The effects of human activities on land and in the sea may have a significant impact on ecosystems. Among the various issues that ecosystems face include climate change and ocean acidification.
Biodiversity produces a quality of the environment that combine with oxygen, clean air, and water, pollinates plants, controls pests, treats sewage, and provides a wide range of other ecosystem services.
Therefore biodiversity provides an environment for the ecosystem when the earth changes, hence option b is correct.
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When you are sitting in a bath, are your skin cells in a hypertonic or hypotonic solution?
Answer:
hypotonic
Explanation:
1. A measurement has two parts true or false.
2. Most countries use the metric system true or false.
3. A graduate is used to measure mass true or
False.
Answer:
1. True
2. True
3. I am not sure what you mean?....
Explanation:
1. A measurement is a quantitative observation that consists of two parts: a number and a unit.
2. At this time, only three countries—Burma, Liberia, and the US—have not adopted the International System of Units (SI, or metric system) as their official system of weights and measures.
Which question could be answered using remote sensing image data?
A.How does deforestation affect Earth's climate?
B.How much of the Amazon river basin has been deforested?
C.How many frog species have become extinct as a result of deforestation?
D.How can biodiversity be restored on deforested lands?
Plz help I’ll mark brainliest
Answer:
C. The study of the interaction between living and nonliving factors in an environment
Explanation:
Ecology is the study of both living and nonliving things in an environment, the only answer that relates to this in significance is C.
why isn’t ground water found in all of earths layers
Answer: bc gravity pulls water and everything else toward the center of the Earth. That means that water on the surface will try to seep into the ground below it. The rock below the Earth's surface is the bedrock but as you get closer to the core it gets hotter also each layer besides the ground layer// our surface is cover so water wouldnt
be able to substain under the earths layers
Explanation: The rock below the Earth's surface is the bedrock. If all bedrock consisted of a dense material like solid granite, then even gravity would have a hard time pulling water downward. But Earth's bedrock consists of many types of rock, such as sandstone, granite, and limestone. Bedrocks have varying amounts of void spaces in them where groundwater accumulates. Bedrock can also become broken and fractured, creating spaces that can fill with water. And some bedrock, such as limestone, are dissolved by water -- which results in large cavities that fill with water
Visualize it this way: get two sponges and lay one on top of the other. Pour water (precipitation) on top and it will seep through the top sponge downward into the bottom sponge. If you stopped adding water, the top sponge would dry up and, as the water dripped out of the bottom sponge, it would dry up too. Now, put a piece of plastic wrap between the sponges, creating your "confining layer" (making the bottom sponge an impermeable rock layer that is too dense to allow water to flow through it). Now when you pour water on the top sponge, the water will seep downward until it hits the plastic wrap. The top sponge will become saturated, and when the water hits the plastic wrap it won't be able to seep into the second sponge. Instead, it will start flowing sideways and come out at the edges of the sponge (horizontal flow of groundwater). This happens in the earth all the time -- and it is an important part of the water cycle.
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What is FAD in Biology
Answer:
Flavin Adenine Dinucleotide
Explanation:
"Flavin adenine dinucleotide (FAD) is synthesized from riboflavin and two molecules of ATP. Riboflavin is phosphorylated by ATP to give riboflavin 5′-phosphate (also called flavin mononucleotide, FMN). FAD is then formed from FMN by the transfer of an AMP moiety from a second molecule of ATP."
Birds display a wide variety of courtship behaviors. Which behavior is also a territorial behavior?(1 point)
creating a bower (arch) with interesting objects and defending it from rival males
flashing feathers to show their health and grooming abilities
dancing and calling on a lek (communal ground) with other males, competing for female attention
singing a particular song to help potential mates hear them
Answer: The correct answer is "creating a bower (arch) with interesting objects and defending it from rival mates".
Explanation:
Just took the quiz.
creating a bower (arch) with interesting objects and defending it from rival males is a territorial behavior.
What is Territorial behavior?Any defended area is referred to as a "territory," and most birds are territorial (in the sense that they defend some area, even if it's merely a nest site), at least for a portion of the year.
When a territory is defended, the "owner" has access to one or more resources (or access to resources of higher quality) than they otherwise would. According to what resource (or resources) is (are) being protected, territories can be categorized.
Type A territory, or the area where mating, nesting, and feeding take place (such as courtship, mating, nesting, & foraging).
Therefore, creating a bower (arch) with interesting objects and defending it from rival males is a territorial behavior.
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If a plant does need to use a molecule of glucose from its starch reserves it will use what type of reaction to detach the molecules of glucose
A) Hydrolysis
B) Condensation
C)Dehydration synthesis
D)Covalent bonds
Answer:
c it is c
Explanation:
The plant uses the dehydration synthesis reaction to detach a molecule of glucose that it doesn't need. So the correct option is C.
What is the dehydration synthesis reaction?Dehydration synthesis reactions are combination reactions or synthesis reactions. These either happen between the same monomers or between the different monomer units. They always result in the elimination of water molecules.
These are a type of condensation reaction where the water molecules are eliminated and two other molecules are added.
Each step of the dehydration reaction happens with the elimination of water molecules and thus this reaction is called a dehydration reaction. It also results in the formation of a new substance and thus it is called a dehydration synthesis reaction.
Therefore many biochemical reactions occur through this mechanism of dehydration. For example, the formation of peptides from amino acids is an example of a dehydration synthesis reaction. It is the process of the formation of peptide bonds. This happens between two amino acid molecules.
Therefore the correct option is C.
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What is ozone?
I really need help guys!!!!
Answer:
It is a toxic unstable gas that is made up of 3 oxygen, or also known as O3, and can oxidize.It is formed from electrical charges or ultraviolet light.
Explanation:
Forests dominated by gymnosperms tend to have mechanisms to allow it to regenerate after a fire. As a consequence this type of forest ______________.
a. dominate areas where the U.S Forest Service does not put out fires.
b. only lives 20-30 years
c. is dominated by trees of a single age
d. has no overstory species
Answer:
Forests dominated by gymnosperms tend to have mechanisms to allow it to regenerate after a fire. As a consequence this type of forest is dominated by trees of single age .
Explanation:
It is possible to conclude the question given above in many ways. After a forest fire in a specific forest patch occurs, the impacts are determined by the severity of the fire and the type of forest in which the occurrence occurs. Usually, the dramatic effect on the trees and plants that can be seen in that region can be seen after such an occurrence has occurred. In certain situations, the situation can also worsen, leading to the destruction of the entire cover, if the circumstances favor the propagation of fires. In such cases, the removal of the prevailing structure can lead to the formation of a new forest structure through a mechanism called 'succession,' in which there is a sequence of progression in a biologically acceptable manner through the growth of different plant species. Simply put, the new plants will attempt to adapt or acclimatize to the conditions introduced after forest fire in such a way that this will later provide the route for the growth of plants and trees that can not easily accommodate in the harsh conditions. Therefore, instead of the forest surviving for a short period of time following a forest fire occurrence, there would be changes in the nature of the forest. This suggests that option 'B' is not the response that is most suitable.Choice 'A' appears to be logically inaccurate, taking into account that if they are of high intensity, fires may be uncontrollable. In addition, there is no clear mention of the fire's region of origin and which trees are most affected. Typically, gymnosperms illustrate a simple process in which they can not limit their destruction from the flames, while they can provide a way for their progeny to initiate next generation development in the form of seed. This occurs in the case of Gymnosperms in which, under ordinary conditions, the seeds of the plants are enclosed within a cone that is restricted from germinating. Although the fires pave the way for the seeds to germinate under certain fire conditions, which in turn leads to the emergence of the next generation of gymnosperms, and several studies indicate that these newly introduced seeds would have the same age as choice 'C' indicated. But, as this is not under the jurisdiction of the US Forest Service, legally, option 'A' tends to be wrong. At the same time, it can be seen that forest fires are not consistent in their coverage in certain cases, and thus the chances of dispersal and germination tend to be not even and thus choice 'C' can be reported to be either correct or incorrect in all possible ways.But, first, it is important to know what an overstory is for the option 'D'. A forest consists of trees of all sizes, from the smallest to the tallest pine trees. The uppermost element that is directly in contact with the light from the sun is the overstory. The manner in which the degree of overstory damage occurs depends on the moisture content of the trees and the other associated conditions around the trees. Taking this into account, a forest fire may either lead to the loss of an entire overstory or can have impacts that are confined to plants and trees at the ground level. So, even the 'D' option can be right or inappropriate. But, therefore, choice 'C' should be the most suitable response, taking into account that most studies indicate growth of single-age trees due to germination mediated in the presence of fire. This seems to be scientifically right for a small patch where there was also fire-mediated damage. Accordingly, the most suitable response should be option 'C'.Hence , the correct option is C.
I really need helppp... I will thank you all my life.
Explanation:
Hope this helps!
The writing is small but readable!
during photosynthesis,what role is played by the radiant energy of the sun ?
Answer:
the energy of the sun is the ATP or energy that will react with water and carbon dioxide which will make sugar and oxygen.
We covered transcription and translation in our lab this week. Below, you'll find several steps required for protein synthesis. However, they're not in the conted
order. Copy and paste these steps into your own post. Then place the steps in the correct order with the first step at the top of the list and the last step at the
bottom of the list
• mRNA connects with a ribosome
• mRNA is built based on the DNA template
• mRNA leaves the nucleus
• The 2 strands of DNA separate
The entire mRNA strand is translated into amino acids and a polypeptide is formed
• The mRNA + attached tRNA shifts, moving the tRNA from the A site to the P site
• RNA brings an amino acid into the A site
• RNA brings an amino acid into the P site
• tRNA leaves the P site and a peptide bond is formed between the amino acids
Answer:
The correct answer is :
The 2 strands of DNA separatemRNA is built based on the DNA templatemRNA leaves the nucleustRNA brings an amino acid into the P site. tRNA brings an amino acid into the A site. tRNA leaves the P site and a peptide bond is formed between the amino acids. The mRNA+attached tRNA shifts, moving the 6-tRNA from A site to the P site. The entire mRNA strand is translated into amino acids and a polypeptide is formed.Explanation:
Protein synthesis is a process that is made up of two distinct processes namely transcription and translation.
Transcription: this process include several steps where the segment of DNA which has information, copied into the new molecule called mRNA which acts as the template as it has information copied from the DNA to produce gene expression.
Translation: is the process includes several steps in which a peptide chain is formed from the mRNA with the help of tRNA and ribosomes.
The correct order of steps is given under the answer heading.
Which are characteristics of eukaryotic organisms? PLZ HELPP
Answer:
Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
Explanation:
Genes A and B are neutral. A weakly beneficial mutation arises in the population. This mutation is 100 base pairs away from Gene A and 1000 base pairs away from Gene B. If this mutation were to go to fixation within the population, which gene would be more likely to go to fixation and what is the term for this process? Is there any reason to suspect that one or both of these genes may not go to fixation? Why or why not?
Answer:
Both genes would be likely to go to fixationThe term for this process is "linked genes"The reason to suspect that both of these genes may not go to fixation is that they are too close to the mutation and the recombination frequency between them is very very low.Explanation:
Independent assortment law establishes that the alleles from two or more different genes distribute in gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. These genes segregate independently after crossing-over because they are located far away from each other.
Some other genes, however, are too close to each other and they do not segregate independently. These are the linked genes that do not exhibit an independent distribution, and they inherit together more frequently.
Crossing-over between linked genes that are very close to each other in the chromosome is not that common. Crossing-over during meiosis occurs randomly in different positions all along the chromosome, and its occurrence frequency in the area between two genes depends on the distance between them. A short distance between genes is a very little target for crossing-over to occur, which means that only a few of them will happen, compared with the number of events between genes that are more separated between each other.
Two genes that are very close will have a few recombination events and are strongly bounded.
The more separated two genes are, the more chances of recombination there will be. The closer they are, the fewer chances of recombination there will be.
Genes that express 50% of recombination frequency or more are not linked genes.
To analyze the recombination frequency, we have to know that
1% of recombination = 1 map unit = 1centi Morgan = 1,000,000 base pairs.
And that the maximum recombination frequency is always 50%.
The map unit is the distance between the pair of genes for which every 100 meiotic products one of them results in a recombinant one.
In the exposed example we know that the distance of gene A from the mutation is 100 base pairs, and the distance of gene B from the mutation is 1000 base pairs.
1,000,000 base pairs ------------------ 1% recombination frequency
1000 base pairs -----------------------X = 0.001% recombination frequency
100 base pairs ------------------------ X = 0.0001% recombination frequency
According to the recombination frequency between the mutation and gene A, and between the mutation and gene B, we can assume that both genes are linked to the mutation, as they seem to be too close to it. They are so close, that their recombination frequency is very little.
The hottest recorded temperature in history occurred in Death Valley, California, July 10, 1913. The temperature was recorded at 134°F. Convert this temperature to Celsius and Kelvin.
Answer:
134 degrees F to degrees Celsius is 56.667
134 degrees F to degrees Kelvin is 329.817
Explanation:
Formula for F to C= (134°F − 32) × 5/9 = 56.667°C
Formula for F to K= (134°F − 32) × 5/9 + 273.15 = 329.817K
What gases are responsible for most of the pressure exerted by the atmosphere on the surface of Earth?
Answer:
nitrogen and oxygen
Explanation:
volume makes up less than %1
The gases that contribute most to the atmospheric pressure are required.
The gases which exert the most pressure on the surface of Earth are nitrogen and oxygen.
The composition of gases present in the atmosphere of Earth is
Nitrogen [tex](N_2)[/tex] = 78.084%
Oxygen [tex]O_2[/tex] = 20.946%
Other gases = 0.97%
The other gases include carbon dioxide, argon, neon, helium, methane, hydrogen and krypton.
So, the gases which exert the most pressure on the surface of Earth are nitrogen and oxygen.
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What can you conclude about the advantage of a double layer arrangement of a cell membrane
Answer:
The cell requires a barrier between itself and its environment.
Explanation:
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Ozone blocks ____ radiation but greenhouse gasses trap _____ radiation.
Answer:
Ozone blocks ultraviolet radiation but greenhouse gasses trap infrared radiation.
What is the reaction of acids with blue litmus paper? With red litmus paper?
Answer:
Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly.
Explanation:
The atomic number of an element is determined by what?
Answer:
An element's atomic number is equal to the number of protons in the nuclei of any of its atoms. The mass number of an atom is the sum of the protons and neutrons in the atom.Hope this helps! <3
Answer:
Protons.
Explanation:
The atomic number of an element is determined by the number of Protons.
Why does the Ocean appear to be blue?
A, because all light that reach the the ocean's surface is blue light
B, As light travels through the ocean, red and orange light gets absorbed first while blue light
continues to travel deeper, make the ocean appear to be blue
C, As light travels through the ocean, blue light gets absorbed first, which makes the ocean appear to be blue
D, The surface of the seafloor is blue
Help please
I do believe the answer is B
Answer:
its because the sky is blue and it reflects to the ocean
How do scientists say the melting ice can contribute to disease occurrence? Also example
Answer:
In the melting of icebergs, icebergs could potentially contain long-dormant bacteria and viruses. Those viruses trapped in ice and permafrost for centuries, can be reactivated. That means melting those ice could potentially open a Pandora's box of diseases. Including some that have caused global epidemics in the distant past.
Example: babesiosis
As of regular ice. The freezing of bacteria in water isn't just an old practice and ice from unclean sources could also contain disease, when melted and ingested or touched this ice as well could transmit disease not so long-dormant, however still unpleasant.
Example: AIDS
All living cells come from pre-existing cells by division
True
False
Answer:
True
Explanation:
The generally accepted parts of modern cell theory include: All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.
Answer:
I would think it would be true?
Name the two types of
Successions.
Answer:
primary and secondary succession
Explanation:
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