Answer:
The cell wall _oval____ the shape of the cell/plant. The cell membrane ___is__ the entry and exit of __cell___.
Which is the expected outcome of combining the DNA of two parents during sexual reproduction?
Answer:
A child...? Sorry if I'm wrong, this one's kind of confusing me.
Explanation:
scientists infer that oxygen first began to enter Earth's atmosphere after the appearance of
Oxygen entered the Earth's atmosphere after the appearance of the Great Oxidation Event (Great Oxygenation Event). The Great Oxidation is the first mass extinction on Earth.
The Great Oxidation lasted 2.4 to 2.0 billion years ago.
Oxygen appeared on Earth thanks to cyanobacteria using photosynthesis.
Oxygen first began to enter Earth's atmosphere after the appearance of cyanobacteria.
The ability to generate oxygen via photosynthesis likely first appeared in the ancestors of cyanobacteria. These organisms evolved at least 2.45–2.32 billion years ago, and probably as early as 2.7 billion years ago or earlier.Why cyanobacteria was important for evolution?Cyanobacteria carry out oxygen-evolving, plant-like photosynthesis. Earth's oxygen-rich atmosphere and the cyanobacteria origin of plastids in plants are the two major evolutionary contributions made by cyanobacteria. Certain cyanobacteria are able to carry out nitrogen fixation.To know more about evolution here
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(10 points) What did meteorites bring to primitive Earth?
a
bacteria
b
viruses
c
primitive cells
d
inorganic materials
Answer:
C. Primitive Cells
Explanation:
I hope u get it right and a good grade
whats atp synthesis and diffusion of water?
Answer:
ATP synthase is an enzyme that catalyzes the formation of the energy storage molecule adenosine triphosphate using adenosine diphosphate and inorganic phosphate. Water moves across cell membranes by diffusion, in a process known as osmosis. hope that helps for now..
A group of botanists would like to study the effects of fertilizer on plant growth. The botanists have two bushes of roses. Both groups of bushes are given the same amount of water, sunlight, and nutrients. Then the botanist gave one of the rose bushes fertilizer. The other group of roses are given no fertilizer. What is considered the experimental group?
Answer:
the experimental group is the bushes of roses that got the fertilizer
Explanation:
They are the group that has a new variable added to the equation with the amount of water, sunlight, and nutrients.
Hope this helps!!! :)
The experimental group is the bushes of roses that got the fertilizer.
What are experimental groups?
In a scientific experiment, the group on which the experimental process is carried out is referred to as the experimental group. For each group, the independent variable is altered, and the result, or change, in the dependent variable is noted.
The control group, in contrast, is the one that does not get the therapy or in which the independent variable is maintained constant. To have enough data to properly ensure that the relationship between the independent and dependent variable is not the result of chance, experimental and control groups must be present.
You can only be reasonably confident in the results of an experiment if you use one subject (with and without treatment) or one experimental subject and one control subject.
Therefore, The experimental group is the bushes of roses that got the fertilizer.
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What gases is used ______ released ______?
Answer: Cars and Carbon dioxide
Explanation:
What gases is used cars released carbon dioxide
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Answer:
B
Explanation:
What important event a take place during prophase I
Answer:
chromatin condenses to form visible chromosomes
the nucleus and nucleolus disintegrate
homologous chromosomes pair up to tetrads
Explanation:
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A _____________________ plant is one that always produces offspring with the same form of a trait as the parents.
hybrid
heterozygous
purebred
mixed
Answer:
I think answer is hybrid pLants
Answer:
purebred I think
Explanation:
purebred plants always have the same traits as the parent
Tumors can be one of the symptoms of cancer. Cancer occurs when there is a
malfunction with the cell's ability to enter--
A. Photosynthesis
B. Mitosis
C. Respiration
D. G ( with a little zero on the bottom )
Answer:
B
Explanation:
Cancer is essentially a disease of mitosis - the normal 'checkpoints' regulating mitosis are ignored or overridden by the cancer cell.
Can you please help me with the worksheet
Gemma lives a very healthy lifestyle. She eats very healthily, runs every day, does not smoke, and does not drink
alcohol. What best explains why she has hypertension?
A. She is inherited the condition
B. She does not drink enough water
C. She sleeps too much
D. She is pregnant
Answer: A. She inherited the condition
Explanation:
EDGE 2021
Answer:
A. Gemma has inherited the condition
Explanation:
:)
why physiological can occur during hibernation?
Answer:
Hibernation is a way animals conserve energy to survive adverse weather conditions or lack of food. It involves physiological changes such as a drop in body temperature and slowed metabolism. Research into the processes involved in hibernation could result in medical benefits for people
Explanation:
. In DMD, the dystrophin gene is mutated. What does the gene
mutation do to the structure and function of the dystrophin protein? Be sure to use the words DNA, RNA, amino acids, and protein.
Answer:
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Explanation:
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Answer:
ok
Explanation:
2x^2+x-6=0 solution(s)?
Answer:
-2 and 1.5
Explanation:
USE DESMOS! IT IS A FREE GRAPHING CALCULATOR SUPER USEFUL!
A researcher noticed that a similar CH2 molecular structure was also located in the plasma membrane of an animal cell. This CH2 molecular structure contained a negatively charged phosphate group. Which statement BEST describes the primary function of the CH2 and phosphate molecular structure located in the plasma membrane?
A. It contains the genetic information needed for protein production.
B. It catalyzes specific chemical reactions in the cytoplasm of a cell.
C. It stores the energy that a cell needs to perform various life processes.
D. It allows a cell to regulate the movement of materials into and out of a cell.
Answer:
it allows a cell to regulate the movement of materials into and out of a cell.
Answer:
D. It allows a cell to regulate the movement of materials into and out of a cell.
Explanation:
I got it right on my test.
this substance stops the bones of organisms from decaying when they become trapped in it?
Answer:
Doesn't tar stop bones from decaying since it gets soaked up by the bones?
what can you infer about an average star's brightness and temperature?
Answer:
Stars with a high temperature are blue and bright, while stars with a low temperature are red and dim. For example, Spica is a blue star at approximately 25,000 K with a high brightness, and Barnard's star is a red star at approximately 3,000 Suns with with low brightness.
Explanation:
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In the last 250 years, the amount of carbon in the air has increased by _____ percent.
options:
10%
40%
80%
stayed the same
40 percent is the answer
What four characteristics of an aquatic environment might make photosynthesis or life processes difficult for aquatic plants? List each characteristic, and describe how it can impact photosynthesis and the plant as a whole. (8 points)
Answer:
Hello there, I will give the answer
Explanation:
Aquatic plants require special adaptations for living submerged in water, or at the water's surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common.
All of the offspring produced in a test cross involving a brown rabbit and a white rabbit are brown. The result of this cross is best explained by A. Incomplete dominance B. Codominance C. Crossing over D. Dominance
Answer:
D
Explanation:
The result of the cross is best explained by dominance.
According to Mendel, when the alleles that make up a gene are different and one of the alleles is dominant over the other, the dominant allele would mask the effects of the recessive allele.
In the same vein, when the alternate version of the same trait is dominant, such trait would be expressed over the other version in heterozygous state.
Assuming that the genotype of the brown rabbit is BB and that of the white is bb. When the two rabbits are crossed:
BB x bb
Bb Bb Bb Bb
All the offspring would be heterozygous and brown in color because the brown allele is dominant over the white allele.
Hence, the correct option is D.
In the deep water where there is no sunlight, how do bacteria and plants create
their food?
Answer:
Bacteria and Plants use the process of chemosynthesis to create/make food using chemical reactions.
Explanation:
"Autotrophs that perform chemosynthesis do not use energy from the sun to produce food. Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen. ... Bacteria that live in the deep ocean, near hydrothermal vents, also produce food through chemosynthesis."
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Answer:
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Explanation:
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Answer:
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As an airplane rises through the atmosphere, machines cause the pressure inside the cabin to decrease. Why is this change in pressure necessary?
Answer:
I think D or B i hope this helps!
Explanation:
Answer: Air pressure inside the plane should match the air pressure outside the plane.
The plane needs to stay balanced.
Got it right on the test.
Describe the two negative impacts that deforestation causes concerning greenhouse gases?
Answer:
Without trees the greenhouse gases will affect our health and it will also decrease the amount of oxygen. With deforestation there will be less trees which means less oxygen as well as no shade for when we go hiking, and it will get rid of animal habitats.
Explanation:
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1.) Explain why tropical rainforests contain a large variety of plants and animals.
In order for protein synthesis to occur, both transcription and translation must occur. Which of the following statements describes the difference between transcription and translation?
In transcription, the genetic code of a DNA molecule is encoded. Translation is the process of converting the DNA code into a code that RNA can use.
In transcription, an amino acid chain is encoded in a DNA molecule. Translation is the process of turning the amino acids into nucleic acids in an RNA molecule.
In transcription, a double helix DNA molecule is split into two separate single strands. Translation is the process of joining each single DNA strand with a single strand of matching RNA.
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. Translation is the process of creating an amino acid chain using the encoded messenger RNA.
Answer:
1
Explanation:
In transcription, the genetic code of a DNA molecule is transferred to a messenger RNA molecule. The translation is the process of creating an amino acid chain by using the encoded messenger RNA. So the correct option is D.
What are transcription and translation?The first step in the process of gene expression is called transcription. In this process, the DNA sequence of a gene is copied for the formation of an RNA molecule.
RNA polymerase enzymes link the nucleotides of DNA to form an RNA strand. The DNA strand is the template. For every gene in the genome, transcription is separately controlled.
The translation is the process by which an mRNA molecule encodes for a protein. The process of translation happens with the help of tRNA in the ribosomes.
Translation requires ATP which is produced by the tRNA. The tRNA in the ribosomes supplies energy to RNA for the transcription of proteins The entry of mRNA occurs by the smaller subunit of RNA and the amino acid chain extends from the larger subunit.
Therefore the correct option is D.
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what is the cleanest in a school meaning less bacteria?
The cleanest in a school is the sinks. Or the bottles of Hand Sanitizer.
During replication, enzymes called ____________________ untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the _______________________.
Answer:
During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
Explanation:
Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained.. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
The study of genes is called genetics.
The correct answer is During replication, enzymes called helicases untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the replication fork.
What is replication?Replication is the process of multiplication of DNA molecules where, from one molecule, two molecules with the same information as the original can be obtained. Each new replicated DNA molecule has an original strand and a new strand, so replication is semi-conservative.
For replication to occur, the double strand of DNA must be separated, a process that requires the participation of a group of enzymes called helicases. The helicases are responsible for breaking the hydrogen bonds between the complementary bases of one strand and another.
The DNA strands, when separated, form a zipper-like image, and the point of separation between the two is called the replication fork.
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