Answer:
Evolution
Evolution is considered a unifying theory of biology. It explains the unity and diversity of life.
Which statement below best summarizes the
likely effects on the carbon cycle of clear-cutting,
or removing all of the trees, in vast areas in a
forest?
A. Clear-cutting would reduce the amount of
carbon dioxide found in the atmosphere.
B. Clear-cutting would limit the amount of nitrogenfixing
bacteria in the area.
C. Clear-cutting would allow for secondary
succession of smaller plants and more carbon.
D. Clear-cutting would increase the amount of
carbon dioxide found in the atmosphere.
Answer:
D. Clear-cutting would increase the amount of carbon dioxide found in the atmosphere
Explanation:
Plants including trees are organisms that help maintain the balance of carbon in the carbon cycle. They do this via the process of PHOTOSYNTHESIS, which is the way they obtain their energy and carbon source. During photosynthesis, trees (plants) absorb carbon in form of atmospheric carbon dioxide (CO2) from the air through the STOMATA on their leaves.
CO2 is an input substance in order for photosynthesis to occur. In a case where all the trees (plants) of a forest has been clear cut or removed, there will be no organisms to directly absorb the carbon dioxide (CO2) released into the atmosphere via respiration. Hence, the amount of carbon dioxide found in the atmosphere would increase.
Answer:
D. Clear-cutting would increase the amount of
carbon dioxide found in the atmosphere.
Explanation:
Which subgroup is the lowest?
Answer:
The answer to this question would be :4.) SpeciesIn taxonomy, the organism will be divided into different groups based on a specific character from that organism. It could be an organ
The sequence from top to bottom would be:
life
domain
kingdom
phylum
class
order
family
genus
species
The lowest subgroup is called species
Which statement best describes the difference between a theory and a law? A. A theory is a guess, and a law has been proven. B. A law is more established than a theory. C. A theory explains a phenomenon, and a law is a statement about a phenomenon. D. Theories and laws are the same as hypotheses.
Answer: The answer is most definitely C: A theory explains a phenomenon, and a law is a statement about a phenomenon
Explanation:
The statement that BEST describes the difference between a theory and a law is a theory that explains a phenomenon, and a law is a statement about a phenomenon (Option C).
A scientific theory can be defined as a well-sustained explanation of some aspect of the real world which was constructed by using the scientific method.A scientific theory is constructed by testing hypotheses through experimental and/or observational procedures.A prediction is the expected outcome derived from a hypothesis or theory.On the other hand, a scientific law is a phenomenon of the real world that scientists found to be likely true. Scientific laws are narrower in their scope than theories.In conclusion, the statement that BEST describes the difference between a theory and a law is a theory that explains a phenomenon, and a law is a statement about a phenomenon (Option C is correct).
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Suppose Maria wants to breed parakeets that are yellow with patterned feathers. However, when she bred several parakeets that were yellow with patterned feathers, she found that there were four different offspring phenotypes.
Phenotype Number
patterned yellow wings 18
solid yellow wings 6
patterned white wings 6
solid white wings 2
Number of genes and alleles?
2 genes; 2 alleles each
1 gene; 4 alleles
4 genes; 1 allele each
Which phenotypes are coded for by the same gene? Different genes are separated by semicolons?
yellow and white; patterned feathers and solid
yellow and patterned feathers; white and solid
all by the same gene
each by a separate gene
Answer:
Explanation:
First let's define a few things.
An allele is a variant form of a gene, each gene can have two or more possible alleles, one inherited from each parent. The copies, however, are not necessarily the same. When the copies of a gene differ from each other, they are known as alleles. A given gene may have multiple different alleles, though only two alleles are present at the gene’s locus in any individual. Alleles can sometimes result in different phenotypes (observable traits), with certain alleles being dominant. (overriding the traits of other alleles)
Let's make a table of our bird's alleles.
We can see from the phenotype of her bird's offspring, yellow is dominant over white, and patterned is dominant over solid.
Let's use Y for dominant yellow, w for recessive white, P for dominant pattern, and s for recessive solid. I know dominant and recessive traits usualy use the same letter with recessive traits being lower case, but in this case it makes it easier to determine phenotype.
Our parent birds are dihybrid cross which involves 2 genes coding two traits, with dominant yellow pattern both represented by PPssYYww.
So look at the chart. It has then been color coded by the traits the bird will exhibit. We have:
9 birds with Patterned Yellow Wings
3 birds with Solid Yellow Wings
3 birds with Patterned White Wings
1 bird with Solid White Wings
This is the same ratio Maria found in the phenotypes of her birds.
Now we can answer the questions:
Number of genes and alleles? We can see that there are 2 genes, one gene for pattern, and one gene for color, but there are also 2 alleles the variant of the Pattern and the variant of the color.
Which phenotypes are coded for by the same gene?
yellow and white; patterned feathers and solid - This one as you can see from the phenotype chart, and as discussed earlier, there are 2 genes, one for color, the other for pattern.
yellow and patterned feathers; white and solid
all by the same gene
each by a separate gene
Decomposers are an important part of the
ecosystem because
A. they return moisture to the soil
B. they return needed nutrients to the soil
C. they help spread plant seeds
Answer:
the answer correct answer would be B. :)
Explanation:
Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. ... Thanks to decomposers, nutrients get added back to the soil or water, so the producers can use them to grow and reproduce. Most decomposers are microscopic organisms, including protozoa and bacteria. (credits to google for explanation)
The Decomposers are an important part of the ecosystem because they return needed nutrients to the soil. The correct option is (B).
By dissolving organic materials, such as dead plants and animals, into simpler molecules, decomposers perform a key function in ecosystems. They return nutrients to the soil by breaking down organic matter. The growth and development of plants depend on minerals like nitrogen, phosphorus, and potassium, which are vital to their growth. Decomposers help the ecosystem's fertility and the overall health of the food chain by recycling these nutrients back into the soil.
They decompose organic materials to replenish nutrients in the soil. Plants require certain elements, such as potassium, phosphorus, and nitrogen, for proper growth and development. By recycling these nutrients back into the soil, decomposers contribute to the ecosystem's fertility and the general well-being of the food chain.
Hence, the Decomposers are an important part of the ecosystem because they return needed nutrients to the soil. The correct option is (B).
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2. Copy/paste and align the first 5 bases of all introns. Which bases are conserved near intron start ("donor site")?
Answer:
This question is incomplete
Explanation:
Introns are non-coding regions of a DNA that removed by RNA splicing prior to translation. Alignment is usually done between sequences to see and understand the identity and similarity between two or more sequences.
A region/base is said to be conserved if there is NO change in any base in that particular region. A multiple sequence alignment (MSA) can be used to align the donor sites of all the introns to see the bases that have not "changed" (and still remained in there exact position) hence conserved across all the donor sites.
NOTE: The donor site of an intron is the 5' end, thus the first five bases in the 5' end are to be used here
explain the relationship between structure and function
Answer:
structure are the physical things or how a substance looks like while function is what they possesses
In order for something to be classified as "Organic," it would need to contain what element?
Answer:
To be classified as organic, it would have to contain the element carbon :)
aerobic respiration produces glucose true or false
Answer:
TRUE
Explanation:
Aerobic respiration produces glucose
Answer: False.
Explanation:
If someone is blood type O, then their blood contains antibodies for which antigens?
A. Neither Anor B
B.A
C. Both A and B
D.B
Answer:
I'll go with choice C...they have both atibodies A and B
If you were born with an extra finger, which organic molecule was responsible for this malformation
Answer:
Nucleic acid would be responsible.
Explanation:
Jumpstart #5 - How do empirical scientific findings inform society's decision making? Give an
example.
Answer:
Empirical scientific findings are based on observation, research and experiment. All the findings in empirical science has a unbias scientific proof that support or inform society's decison making. Empirical scientific findings uses different research methods such as survey researc, qualitatarch and quanititative research.
For example: Empirical findings used survey research to proof growing concern of depletion of energy resources and awareness about renewable energy.
Many of the stars we see in the night sky are called blue giants. They put out more energy and burn millions of times brighter than the Sun Why does the Sun appear much larger and brighter from Earth than blue giant stars? A) It is larger B) It is closer It is a different color D) It is a different temperature
Answer:
The answer would be B, it is closer :)
a scientific problem is something you solve with only one right or wrong answer
Answer:
No.
Explanation:
No, a scientific problem can not you solve with only one right or wrong answer because the scientific problem can be solved through a number of experiments. If we find the answer for the scientific problem so it must be verified through a number of experiments and if we got the same answer so we can say that this is the answer of that scientific problem. So it is concluded that we have to solve scientific problem through experiments.
Are crystals minerals?
a crystal is any solid that has an organized structure. ... minerals are inorganic, naturally occuring substances that have crystalline structures. so it is a prerequisite to be a crystal in order to be a mineral. all minerals, therefore, form crystals.
Answer:
Yes. Its actually minerals that form crystals because they are naturally occurring substances that have crystalline structuresExplanation:
Which of the following occurs in January when the earth is closest to the sun?
A perihelion
An aphelion
A revolution
An ellipse
Answer:
A perihelion was the correct answer for gradpt
Why don’t prokaryotic cells divide through mitosis?
Mitosis requires a cell membrane, and prokaryotes don’t have a cell membrane.
Mitosis and cytokinesis require cytoplasm, and prokaryotes don’t have cytoplasm.
Mitosis is division of the nucleus, and prokaryotes don’t have a nucleus.
Mitosis requires DNA and chromosomes, and prokaryotes don’t have chromosomes.
Answer:
Prokaryotes such as bacteria propagate by binary fission. ... In bacterial cells, the genome consists of a single, circular DNA chromosome; therefore, the process of cell division is simplified. Mitosis is unnecessary because there is no nucleus or multiple chromosomes. This type of cell division is called binary fission.
Explanation:
i hope this helps
Answer:
Mitosis is division of the nucleus, and prokaryotes don’t have a nucleus
Explanation:
Gradpoint
Question 4
Multiple Choice:
Which of these is the independent variable of the Thumb Wrestling Match Experiment?
The rules of the game.
O Which player wins a match.
The palm sizes of the players.
Question 5
Answer:
The palm sizes of the players
What is a sperm cell
Answer:
Sperm is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction. : )
Which is NOT a characteristic of all living things?
Answer:
Living things grow or develop.
Non-living things do not.
Answer:
Not reproducing
two advantages of using meters as a measurement of length rather than old measurements of length
Answer:
Explanation:
Metric measurement is easier to learn because the units name have the same root word all over places that it is being used.
Accuracy
The use of meter ensures accuracy of measurement rather tham using the old method
It is an easier and convienient method to use in taken measurement.
It is an international system of unit hence it allows for continuity and transparency anywhere in the world.
It allows accurate conversion rate when using meter than old method.
This frog is about to be food for a snake. Which type of nutrition does the snake use, and which type of nutrition does the frog use? Justify your answer. If you do a CORRECT OR PLAUSIBLE ANSWER I WILL GIVE BRAINLIST
Answer:
both frog and snake use heterotrophic nutrients type.
Mary Beth bought 15 ghost shrimp. She put 5 in a small fish bowl, 5 in a larger tank, and 5 in an artificial pond in her backyard. What are the two controlled variables (CONSTANTS) Mary Beth should have to be able to tell whether the size of the tank affects the size of the shrimp after 6 month
Answer:
0
Explanation:
if she has 15 and she put those 5 in a fish bowl well give her 10 then a lager tank that well give her 5 and then she putes those 5 in the pond she has used all her ghost shrimp
A scientist was observing a specimen under a microscope. He obtained the specimen from pond water. He observed that the specimen was egg shaped, had hairy structures all over its body, and was covered by a membrane. He also noticed two nuclei in the specimens body. To which phylum did the organism belong?
Answer:
The correct answer is : ciliophora is the phylum.
Explanation:
Ciliophora is a phylum which comprise organism of ciliates groups. Ciliates are protozoans found in aquatic or near aquatic conditions. These organism have egg like body in shape however some have different shape. The major characteristic feature is cilia, a hair like structures present on the body of these organisms.
They have cell with cytoskeleton, cilia, two different types of nuclei.The hair like structure called cilia used for collecting food and movement or locomotion.
Thus, the correct answer is : ciliophora is the phylum.
Answer:
B. ciliophora
Determine of the statement is true or false, and why. Nitrogen makes up most of the atmosphere, but is in an unusable form until converted into an organic form by bacteria.
A. False, it should read, "Nitrogen makes up most of the atmosphere, and is easily converted into an organic form by plants."
B. False, it should read, "Nitrogen makes up a small percentage of the atmosphere, but comes in an easily usable form for most living organisms."
C. True.
D. False, it should read, "Nitrogen makes up most of the atmosphere, in a form easily accessible to plants, who convert for animals to use."
Answer:
C. True.
Explanation:
It should be understood that the the percentage of nitrogen is the highest in the atmosphere. This is because, it make up of more than 60% of the atmosphere. And it should be noted that the atmospheric nitrogen is inform that can not be used by the plant.
Therefore, there is a need for a certain group of bacteria which live in the root noodles of the plants to convert the unused form of the atmospheric nitrogen to a form that can be used by the plants.
What is the mechanism by which evolution occurs?
Mechanisms of evolution correspond to violations of different Hardy-Weinberg assumptions. They are: mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.
Answer:
There are five key mechanisms that cause a population, a group of interacting organisms of a single species, to exhibit a change in allele frequency from one generation to the next. These are evolution by: mutation, genetic drift, gene flow, non-random mating, and natural selection.
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Why is it important to pull the inoculating needle out of the FTM via the same path you inserted it?
Answer:
to minimize the amount of oxygen introduced to the contents of the tube.
What is the pH of a neutral solution?
7
10
14
Answer:
The answer would be 7.
Explanation:
Answer:
7
Explanation:
The answer is 7. For example, water is neutral, so it has a pH of 7.
Molecules are the smallest classification of matter (True/False) True False
Answer:
false because atom are the smallest classification of matter
The scuba diver is a living system. The scuba gear or self- contained underwater breathing apparatus, is a system of air exchange. How are these two systems interacting? What are inputs and outputs of these systems
Answer: The carbon dioxide is the output and oxygen is the input of the Scuba apparatus.
Explanation:
The scuba apparatus is a life saving apparatus used by the sea divers. It recycles the exhaled gas and removes the carbon dioxide and compensates for the utilized oxygen gas before the diver is actually supplied with the gas for the purpose of breathing in a circuit. Hence, the carbon dioxide gas is the output and the oxygen is the input.