1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
shtirl [24]
3 years ago
13

Anybody good at writing biology would be great with this!!!

Biology
1 answer:
ruslelena [56]3 years ago
4 0

Answer/Explanation:

The replication of DNA is semi-conservative, as each new molecule of DNA inherits one of the parental strands each, and one new strand each. DNA is replicated using the enzyme DNA polymerase, which synthesises a new strand by adding nucleotides in a sequence through complementary base pairing with the template strand. This occurs before the mitosis stage of the cell cycle, where the cell divides. Before this cell division happens, the cell has to pass certain checkpoints controlled by enzymes which ensure environmental conditions are optimal for dividing, and that the new DNA is free from errors.

You might be interested in
Proteins are broken down to form ammonia, which is toxic to cells. In which organ of the body is this ammonia converted to the l
vodomira [7]
I think the correct answer from the choices listed above is option A. It is in the liver that ammonia is <span>converted to the less toxic compound urea. Most of the wastes products from the processes in our body goes to the liver. It serves as a filter in our body. Hope this answers the question.</span>
6 0
3 years ago
Read 2 more answers
Kai has a see-through glass tank with air, plants, and animals that eat those plants. He sealed the tank so no material can get
kipiarov [429]

Answer:

1. Carbon is moving from the living things in the tank into the air when they respirate, and from the air back into plants via photosynthesis

2. The amount of carbon in living things is increasing as plants use the carbon in the atmosphere, and animals eat the plants.

Explanation:

According to the question, a well sealed tank contains air, plants and animals. Since light can get into the tank, plants can perform photosynthesis. Living things in the tank release carbon in form of carbondioxide (CO2) gas through respiration. Plants then make use of this carbondioxide (CO2) to synthesize carbon-containing food (glucose) in the presence of sunlight. This process is called PHOTOSYNTHESIS.

Animals eat those plants and the stored carbon in the plants gets transferred to them. The animals release this carbon into the air again in the form of carbondioxide when they respire. Hence, carbon in the tank moves from the living things (respiration) into the air and back into plants (photosynthesis).

2. Since the amount of carbon in the air is decreasing, the carbon is being used by the living things in the tank. Plants absorb the carbon in the atmosphere for photosynthesis, then animals eat the plants to get the carbon. Therefore, the amount of carbon in the living things is increasing.

6 0
3 years ago
Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward o
LekaFEV [45]
B because sun is the jey word hope tuis helps and if not im sorry hope this helsp
4 0
3 years ago
The theory of endosymbiosis suggests that chloroplasts and mitochondria were once free-living prokaryotes, that were engulfed by
Drupady [299]

The question is incomplete. The rest of the question is : Which of these is not supported by the endosymbiosis theory concerning organelles?

A) contain DNA.

B) contain ribosomes.

C) are capable of living independently.

D) are surrounded by a double membrane.

Answer:

Option C) are capable of living independently  is not supported by the endosymbiosis theory concerning organelles

Explanation:

The endosymbiosis theory proves that chloroplasts and mitochondria were prokaryotic cells before due to many reasons. Some of which are:

  • These organelles have their own separate DNA.
  • The separate DNA present in them is capable of making their own proteins.
  • They are membrane- bound organelles.

However, these organelles can now not live separately outside of the cell. This might be because of the evolutionary changes which  occurred in these cells during the long period of time.

8 0
3 years ago
Read 2 more answers
The purines in DNA are A. thymine and cytosine B. thymine and guanine C. adenine and guanine D. adenine and cytosine
SSSSS [86.1K]
C.Adenine and guanine<span> are </span><span>purines in DNA.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • All connective tissue is formed from which embryonic germ layer?
    9·1 answer
  • What type of mountains are the cascade mountains
    11·2 answers
  • 1. Disease can be caused by viruses, bacteria,
    7·1 answer
  • Metabolic pathways in which cells harvest energy from food molecule in the absence of oxygen is called____
    8·2 answers
  • Piz help me fast!!!! thx​
    14·2 answers
  • How to make a baby. I need to know
    5·1 answer
  • Which of the following processes releases energy to be used by a cell? (4 points) Group of answer choices A phosphate group is a
    7·1 answer
  • if you pour 50 ml of orange juice from a pitcher into a glass a. the shape and the volume of the orange juice change. b. the sha
    11·1 answer
  • What will you conclude when comparing a non- living material to a living material?
    14·1 answer
  • A three banded isoenzyme pattern with a 1:2:1 intensity ratio indicates a ________________ protein.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!