Answer:
As of 2017, microfossils (fossilised microorganisms) within hydrothermal-vent precipitates dated 3.77 to 4.28 Gya in rocks in Quebec may harbour the oldest record of life on Earth, suggesting life started soon after ocean formation 4.4 Gya during the Hadean Eon.
Explanation:
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Some cells contain two copies of each chromosome, and some cells contain only one copy of each chromosome. Which types of cells contain two copies of each chromosome?
Select all that apply.
A. egg cell
B. skin cell
C. body cell
D. blood cell
E. sperm cell
The type of cell that contain two copies of each chromosome should be considered as the sperm cell and the body cell.
What is a chromosome?It is considered as the thread-like structures that should be located inside the animal or plant cells nucleus. Each and every chromosomes should be made of protein and the individual molecule of DNA.
Therefore, The type of cell that contain two copies of each chromosome should be considered as the sperm cell and the body cell.
Learn more about chromosome here: https://brainly.com/question/17599295
Under identical conditions, which surface will reflect the greatest amount of insolation?
Answer:
Earth's surface
Explanation:
Will be receiving the greatest amount of isolation
HELP ASAP!!
Which scenario is an example of an environmental problem becoming an
economic problem?
O A. Excessive pollution decreases a community's access to affordable
clean water.
O B. Destruction of habitat reduces a population of animals in a remote
ecosystem.
O C. Deforestation creates farmland that allows a community to
produce more crops.
O D. Excessive manufacturing of a product reduces demand in a
saturated market.
Answer: A, excessive pollution decreases a communities access to affordable clean water.
Explanation: ap3x
Answer:
O A. Excessive pollution decreases a community's access to affordable
clean water.
Explanation:
Above answer is absolutely correct! I just want to assure you :)
Is the ocean a carbon sink or a carbon source
Answer:
Explanation:
The Carbon CycleChanges to The Carbon CycleThe Ocean and CarbonBiological Pump
The ocean plays an important part in the carbon cycle. Overall, the ocean is called a carbon ‘sink’ because it takes up more carbon from the atmosphere than it gives up.Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. Some of the carbon dioxide stays as dissolved gas, but much of it gets turned into other things. Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter
the ocean is a carbon sink
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What are all of the functions of water in the body? (Nutrition Lesson)
Answer:
Protects body organs and tissues. Carries nutrients and oxygen to cells. Lubricates joints. Lessens burden the on kidneys and liver by flushing out waste products.
Explanation:
10. In a bacterial cell, which structure allows the cell to move through fluid?
A flagella
B pili
C nucleoid
D ribosomes
Answer:
a, flagella. they allow cells to swim
How does reproductive isolation affect the gene pools of two or more populations?
Francis grew some plants for a science experiment. The sketch of his experiment after several days is shown. Which tropism is Francis most likely investigating?
The correct answer to this open question is the following.
Unfortunately, you did not provide the sketch or the photo that shows what Francis is doing. So we do not know what you are talking about.
However, trying to help you, we did some deep research and can comment on the following.
If the photo shows a plan under the light of a lamp, moving towards the lamp direction, then tropism is Francis most likely investigating is phototropism.
To better understand the concept, Tropism is the movement of a plant towards the direction of an influence exerted on it. This means that an external factor is introduced in order to make the plant grow through an external influence.
So when we use the term phototropism, this means that the plant responds to the direction of the source of light and grows in that direction. That is what Francis is using in his science experiment.
Answer:
phototropism
Explanation:
if you want an in depth answer, look at the other one, not mine lol! (I attatched the image)
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Answer:
B
Explanation:
Its the same
How does the process of DNA replication impact mutations in an individual?
a All DNA replication stops when there is a mutation so the mutation wont hurt the individual
b Replication only produces new DNA strands so the old stand with the mutation is destroyed
c Since replication keeps the old strands as templates mutations maybe earned into future stands
d Mutations are often lost since the cell will die doring the replication process if the DNA is mutatie.
Answer: A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.
Explanation:
Put the steps of Protein Synthesis below into the correct order.
4 points
Step 1
Step 2
Step 3
Step 4
A Protein
molecule is
produced
An mRNA
molecule is
produced
mRNA interacts
with a Ribosome
DNA interacts
with RNA
polymerase
The correct order is DNA interacts with RNA polymerase (1), the mRNA molecule is generated (2), mRNA interacts with a ribosome, and protein is produced (4).
What is transcription?Transcription (gene transcription) is the process by which a fragment of DNA is employed to generate an mRNA.
This messenger RNA (mRNA) then travels to the ribosomes in the cytoplasm to generate a protein.The process of translation refers to the protein synthesis by an mRNA template.In conclusion, the correct order is DNA interacts with RNA polymerase (1), the mRNA molecule is generated (2), mRNA interacts with a ribosome, and protein is produced (4).
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Why is it important for the new cell that the two new double helices are identical to each other?
DNA strand: 5' GGC TAG ATC GGA TCA 3
mRNA strand:
Protein (amino acid chain):
Pls help
Has anyone done this Sexual vs Asexual Reproduction before?
Answer:
Explanation:yes
Answer: for the genetic variation, the offspring gets a allele from each parent.
Explanation:
Yes
natural selection is an example of a mechanism of evolution. does this mechanism produce a change in individuals or populations? explain
Natural selection refers to the procedure where the species better amended to their surrounding appear to survive and generate more offspring. Natural selection refers to one of the mechanisms that make modifications in the frequencies of genes in populations and thus, it is the mechanism of evolutionary change.
However, the phenomenon of genetic drift and natural selection cannot take place unless and until there is a genetic variation, that is unless some individuals are genetically distinct from others.
1. Choose the items that are Inferential Statistics. (Check all that apply)
Give the likelihood of data occurring by chance
Include the mean
Summarize the data
Tell you whether to call your mother about your results
Give a measure of statistical significance
Answer:
A, D, and E is correct
Explanation: I took the test and got this one correct.
The items that are inferential statistics among the options would be:
Give the likelihood of data occurring by chanceTell you whether to call your mother about your resultsGive a measure of statistical significanceThis is largely due to the fact that inferential statistics refer to the branch of statistics that draws conclusions from a set of data. It is as opposed to descriptive statistics which focus on summarizing, describing, arranging, and or categorizing data in such a way that trends are shown at a glance.
Statistical parameters such as mean, mode, and median only measures attributes of data relating to the measure of central tendencies. Data summary is purely descriptiveHence, the items selected are those that are conclusive and not descriptive.
More about types of statistics can be found here: https://brainly.com/question/1135243
provides protection and a space to move and breathe *
Umbilical cord
Amniotic sac
Amniotic fluid
placenta
PLEASE HELP!!!
List three factors that affect soil formation and explain “how” in 2 sentences each!
If you rescue a snake and give them a home in your house will that cause them to not shed? And why!! Very important. Will mark brainless!!!
What 3 systems get put to work when feeding and how does each one work when you eat?
Answer:Digestive and muscular systems would be working together to chew food and work it down to the stomach to be digested. The digestive system and circulatory circulatory system would be working together to break food down and move nutrients to cells. The nervous system decides what to eat and when to chew.
Explanation:
This is a astronomy true or false question.
True or false: constellations represent physical connections between
their stars.
Answer:
true
Explanation:
Answer:
True
Explanation:
Hope it helps!!
frank has type A blood (AA or AO) and margarita has type B (BB or BO) blood. They have a new baby. Vinnie, with type O blood. Is this possible or should frank accuse margarita of cheating?
Answer:
It is technically possible, if and only if, both parents have AO and BO blood.
Explanation:
the only way (most of the time) a child can get O blood is if both genes accepted by the parents are O. That would mean both parents would have to have O recessive genes.
A reaction that absorbs energy from the environment a reaction that requires an activation energy a reaction that releases energy into the environment a reaction that does not involve a change in energy
Answer:
Endothermic reaction
Explanation:
An endothermic reaction is a chemical reaction that takes energy from the atmosphere. It requires activation energy. An exothermic reaction is the reverse of an endothermic reaction. Reversible reactions are where the compounds will react to the initial reagents.
Which of the following is not a function of the skeletal system?
A.
provides a framework for the body
B.
provides protection for internal organs
C.
movement of bones
D.
production of new blood cells
Answer:
C
Explanation:
The skeleton relies upon the contraction and relaxation of muscles which are attached to bone in order to move. The muscular system is made up of three types of muscle, one of which is responsible for the movement of bone. To add to the confusion, the relationship between both muscles and bones is often lumped together as the musculoskeletal system, but to be sure, they are unique in their own ways.
In summary, bones can't move on their own, and therefore movement cannot be the skeletal system's function.
21.As mentioned in the video, the environment can also affect an organism's traits. The example of nourishment was used in the case for Spike, as this could affect his growth and size. This can also occur in humans. UV light was not mentioned in the video. How could UV light potentially affect an organism's trait? Provide one example.
Answer:
UV light can modify the DNA of a human being, provoking mutations that affect the traits. For example, exposure to the sun's UV rays affects the DNA of the skin cells, causing mutations that can lead to cancer.
Explanation:
An environmental factor that can affect humans traits is the exposure to UV light that the sun radiates. The DNA in our skin cells absorbs the UV rays. As a result, the DNA can suffer modifications that result in skin cancer. Also, the absorption of UV rays causes wrinkles since cell components are affected due to the accumulation of UV light.
Answer: UV light can modify the DNA of a human being, provoking mutations that affect the traits. For example, exposure to the sun's UV rays affects the DNA of the skin cells, causing mutations that can lead to cancer.
Explanation: An environmental factor that can affect humans traits is the exposure to UV light that the sun radiates. The DNA in our skin cells absorbs the UV rays. As a result, the DNA can suffer modifications that result in skin cancer. Also, the absorption of UV rays causes wrinkles since cell components are affected due to the accumulation of UV light.
Organize the steps of primary succession to describe how the empty rock
landscape transformed into mature forest communities.
First
1
Rock is broken down and converted into soil
N
Lichen and other pioneer species grown on the rocks
3
Small pine trees grow in the soil
4
Grasses and flowering plants grow in the soil
5
The glacier retreated, leaving barren only rock
6
Shrubs and small trees grow in the soil
7
::::
A climax community develops
Last
Answer:
A climax community develops
The glacier retreated, leaving barren only rock
Lichen and other pioneer species grown on the rocks
Rock is broken down and converted into soil
Grasses and flowering plants grow in the soil
Shrubs and small trees grow in the soil
Small pine trees grow in the soil
Explanation:
hope its correct can i get brainliest i spend a lot of time on it
How could flying squirrel adapt further to allow it to be more successful?
Answer:
The structural adaptations of the flying squirrel has developed a good sense of balance, sail-like fur skin membrane that extends from the wrists to ankles, delicate wrist bones that control this membrane, allowing the squirrel to steer, and a fluffy tail that balances out and stabilizes the flight.
Water is a
compound. How do these images of water illustrate
this? Provide evidence to support the claim. Explain
your reasoning
Answer:
Is made up of different kinds of atoms chemically combined.
Explanation:
When an instruction for a variation of a trait is not shown in by the organism, but the organism carrys it and can pass it on to the next generations, these organisms are called _______.
a
dominant
b
carriers
c
recessive
d
holders
Answer:
b. carriers
Explanation:
Recessive alleles do not create a phenotype if a dominant allele is present BUT the organism itself is called a carrier because it carries the recessive trait.
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The image shows a lake, a factory, a cloud in the sky, a cow, dead organisms, a tree, and the sun. An arrow from the sun to the tree is labeled A. An arrow from the sky to the tree is labeled B. The sky is labeled C above the cloud. The letter D is in the air and an arrow points from it down to dead organisms. An arrow points from dead organisms to the ground labeled E. An arrow points from the cow into to the sky labeled F. An arrow points from the factory to the sky labeled G. An arrow from the sky to the lake is labeled H above the lake.
Using the diagram above, match the description to the corresponding location in the carbon cycle model. Provide the letter only.
Carbon dioxide is converted to sugar used for food.
Carbon trapped in fossil fuels is converted to carbon dioxide.
Organic carbon is converted to fossil fuels.
Carbon dioxide is converted to carbonates.
Sugar is broken down and converted to carbon dioxide.
Location ________
Location ________
Location ________
Location ________
Location ________
Answer:
A - 1. Carbon dioxide is converted to sugar used for food (this is process of phosynthesis).
G - 2. Carbon trapped in fossil fuels is converted to carbon dioxide (this is combustion of fuel).
E - 3. Organic carbon is converted to fossil fuels.
H - 4. Carbon dioxide is converted to carbonates.
F - 5. Sugar is broken down and converted to carbon dioxide (this is breathing).
Explanation:
hope this helps