Why are reproductive technologies important to some infertile couples?
DNA creates ____ which creates ____ which creates _____.
Answer:
DNA replication creates two new strands that assemble nucleotides differently.
Explanation:
This statement describes DNA replication because this process involves a double stranded DNA copied to produce two identical new DNA molecules.
Hope this helps!
Which of the following is a compressional/longitudinal wave?
А
water
B
fans doing the "wave" in a football stadium
С
light
D
sound
Answer:
D. Sound
Explanation:
Both А. water and B. fans doing the "wave" in a football stadium are both literal waves and are not examples of a compressional/longitudinal
Answer:
the answer is sound
Explanation:
a sound wave in longitudinal
Oxygen is produced at what point during photosynthesis?
a. when ATP is converted into ADP
b. when CO2 is fixed
c. when water is split
d. when 3-PGA is converted into G3P
I have a test in a couple days and I still don’t know how to do this stuffsomeone teach mee
!(points given)!
Name the enzyme that breaks the hydrogen bonds holding the
two DNA strands together during DNA replication?
DNA helicase is the enzyme that breaks the hydrogen bonds which holds the two DNA strands together during DNA replication.
What is DNA helicase?During replication of DNA , the enzyme DNA helicase separates the two strands of DNA and causes the breakdown of hydrogen bonds between the two DNA strands which leads to separating of the DNA double helix into two individual strands which make easier to copy it.
In conclusion, DNA helicase is the enzyme that breaks the hydrogen bonds.
Learn more about enzyme here: https://brainly.com/question/1596855
Which of the following statements describes a process that occurs during photosynthesis but not during cellular respiration?
ATP is produced that stores energy.
O
Chemical energy is converted to light energy.
Reactions occur in the mitochondria of the cell.
Light energy is converted to chemical energy.
Answer:
D (see below for explanation)
Explanation:
Using the process of elimination, we can go down the answer choices:
A) ATP is produced that stores energy.
In photosynthesis, light energy, water, and carbon dioxide is taken in and converted to oxygen and glucose. Cellular respiration, however, uses glucose and oxygen and converts it to water, carbon dioxide, and ATP.
As you can see, there is no mention of ATP in photosynthesis. ATP is not created in photosynthesis—photosynthesis' main purpose is to make food for the organism.
So A is not the answer.
B) Chemical energy is converted to light energy.
In photosynthesis, the light energy taken in is converted to chemical energy so it can be used. Cellular respiration requires only oxygen and glucose, so light energy doesn't relate to cellular respiration directly.
However, if you read the answer carefully, it says that chemical energy is converted to light energy. The main purpose is to use the light energy, which cannot be used in its light form, so it has be converted into chemical energy.
So B is not the answer.
C) Reactions occur in the mitochondria of the cell.
Photosynthesis occurs in the chloroplasts of an organisms. Heterotrophs do not have chloroplasts, so they cannot make their own food. However, mitochondria are in all eukaryotic cells, as cellular respiration occurs in all eukaryotic cells as well.
Cellular respiration happens in the mitochondria of a cell. Photosynthesis does not.
So C is not the answer.
D) Light energy is converted to chemical energy.
If you go back to my explanation for B, you can see that photosynthesis uses light energy, but to do so, it has to convert it to light energy first. It cannot use light energy itself.
So D is the right answer.
1) If the amount of algae in the ocean decreases by 50%, the population of its consumers, goby fish, will
A decrease to its carrying capacity.
B go extinct.
C increase by 50%.
D increase to its carrying capacity.
Answer: decrease to it’s carrying capacity
Emma lives in Wisconsin and wants to plant geraniums in her yard. The average daily temperature in her area is 21°C (70°F) and the nighttime temperatures are averaging 18°C (65°F). The area where she would plant the geraniums gets full sun all day. Would you suggest she plant her geraniums? Why or why not?
Answer:
Please mark brainliest
Explanation:
Yes, because geraniums live on land that has a temperature of 65 degrees F and 70 degrees F.
PLEASE MARK BRAINLIEST
Based on these drawings, which element is the least reactive?
Answer:
ne
Explanation:
r If a mouse population changes color from white to black over many generations, which question should be asked to determine whether the population changes are a result of natural selection or artificial selection?
A.
What do humans need to keep mice healthy as pets?
B.
Was there a change in the genetic traits of the mice?
C.
Were the genes of the mice inherited from their parents?
D.
Was there a change in the environment where the mice live?
Answer:
D if there is a change in environment that would favor black fur you could assume that natural selection caused the fur to change
Explanation:
The question which should be asked to determine whether the population changes are a result of natural selection or artificial selection is that was there a change in the environment where the mice live? Thus, the correct option is D.
Natural selection is the process through which the populations of different living organisms adapt and change with respect to their surrounding environment. Individuals in a population are naturally variable, it means that they are all different in some way or the other. This variation in the population means that some individuals have traits which are better suited to the surrounding environment than others.
If a mouse population changes its color from white to black over many generations, then the question which should be asked is "Was there a change in the environment where the mice live?"
Therefore, the correct option is D.
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Why is it necessary to conserve nonrenewable energy sources?
A. They can be exhausted.
B. They can be easily extracted.
C. They are the only resources of energy on Earth.
D. They are energy sources with the least amount of emissions.
Answer:
A
Explanation:
they are nonrenewable meaning they aren't renewable
What is the formula for the stable, binary ionic compound formed between Ba2+ and O2-?
A) BaO2
B) Ba2O2
C) Ba2O
D) BaO
Answer:
it's ba0 so the answer is d
The students meet with a team of geologists that is studying the rock layers at the first roadcut. The geologists find fossils of the same kind of organisms in layers P and Q. Which of the following conclusions about the layers at the second roadcut is most likely true
A) The fossil found at the first roadcut should only be found in layers P and Q at the second roadcut
B)The fossil found at the first roadcut should be found in layers P, N, and Q at the second roadcut
c) The fossil found at the first roadcut should only be found in layer N at the second roadcut
D) The fossil found at the first roadcut should not be found in any layers at the second roadcut.
Which of the following seems probable in a garden with moist soil, planted with thriving astilbe, bleeding
heart, and hydrangeas, but with boxwood that is doing very poorly?
Answer:
the garden has a low ph, under 7
Explanation:
took the test
_____ cannot be grown in a lab culture unless living cells are present.
A. Fungi
B. Plants
C. Viruses
D. Bacteria
Answer:
B. Viruses
Explanation:
Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.
Large moving cells in the blood and lymph nodes that ingest and digest foreign particles or wall off material are called:
bacteria
fibroblasts
viruses
leukocytes
Answer:
Leukocytes
Explanation:
Leukocytes = White blood cells that digest foreign particles
Is energy recycled?
Answer:
Energy is not recycled in ecosystems and each ecosystem requires a continuous input of energy to sustain it. There is some energy transformed at each level of the food chain or food web in an ecosystem. In an ecosystem, energy is frequently transformed from one form to another
Help! Pleaseeeee!!!!
When your cells use fat for energy, the fatty acids are broken up into molecules of acetyl CoA. Predict how many ATP can be made from one molecule of acetyl CoA if oxygen is present. Show your work.
Answer: Suppose that each fatty acid in a certain fat can make 9 molecules of acetyl CoA. Predict how many ATP can be made from the fatty acids in this fat. This would make 27 acetyl CoA, and therefore would make 27 ATP
Explanation:
Help
I don’t know what to do here
Number 2 don’t have to answer I just need help for 1!
Answer:
dominant is the 2 capital letters heterozygous dominant is one capital and one lower case
purple
hairy knuckles normal tails
Explanation:
A class is debating the advantages and disadvantages of different types of reproduction. One student argues that organisms that reproduce asexually, like bacteria, have no advantage over organisms that reproduce sexually.
Which of the following choices below represents an argument for the advantages of asexual reproduction?
A. Organisms that reproduce asexually are likely to find a mate at a faster rate than sexually reproducing organisms, which allows them to reproduce faster.
B. Organisms that reproduce asexually are more diverse and are more likely to pass on key genes for survival to future generations, which aids in maintaining beneficial genes for survival in the gene pool
C. Organisms that reproduce asexually gain variation through processes like crossing over, which allows survival in instances of ecological change
D. Organisms that reproduce asexually create a large amount of offspring in a short period of time in order to maintain their population
Answer:
D
Explanation:
Ya que en todas las definiciones anteriores el contenido que poseen no son acordes a la reproducción asexual , en otras palabras no tiene sentido alguno
I need an answer quickly please
Answer:
b
Explanation:
How are carbon dioxide affecting the climate changes? Is there any evidence showing that humans can work on changing the Carbon Dioxide Levels? Can humans control them?
please help me this is due today!!!
The picture shows 4 different types of Point Mutations, what type of Point Mutation is letter A?
Answer:
there is no picture
Answer: no picture attached
Explanation:
How do animals living in social groups affect the animals nutritional needs?
Answer:
they can have a happy life and rely on others for a social interaction... even if they are animals they need this
can someone help me with this ? i’ll give brainlist
describe the different processes involved in the movement of these substances into and out of the cell; oxygen, carbon dioxide, glucose, potassium, water, and enzymes.
Answer:
Dissolved or gaseous substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen. Diffusion occurs when particles spread.
Explanation:
To enter or exit a cell, dissolved or gaseous substances must pass through the cell membrane. One of the mechanisms that makes this possible is diffusion. Particles diffuse when they spread.
What is cell?Cell is defined as the fundamental membrane-bound entity that houses the essential molecules of life and is the building block of all living things.
It can also be defined as a semipermeable cell membrane encloses one or more nuclei, cytoplasm, and different organelles, which are the smallest structural component of an organism capable of autonomous functioning.
There are basically two types of cell.
Prokaryotic cellEukaryotic cellCell membrane is defined as a biological membrane that keeps all cells' interiors isolated from the outer world and provides protection for it.\
Barriers and gatekeepers are cell membranes. Because of their semi-permeability, some molecules can diffuse across the lipid bilayer but not others.
Thus, to enter or exit a cell, dissolved or gaseous substances must pass through the cell membrane. One of the mechanisms that makes this possible is diffusion. Particles diffuse when they spread.
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help please !!!!!!!!!!!!!!!!!!!!
Answer:
B
Explanation:
C: Teacher not being in control while experimenting is like giving students an answer key for a test and telling them not to use it.
D: duh
A lizard lays an egg for a new baby lizard.
Asexual reproduction
Sexual reproduction
Which molecule does the cell use as a carrier of free energy for powering
numerous metabolic reactions?
A. Water
B. ATP
C.Oxygen
D. Glucose
Answer:
B. ATP
Explanation:
I just took the quiz
