Answer: It is important to control the variables so the evidence from the experiment are as accurate as possible.
Answer:
I dont know this so I looked this up, here is the results.
They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
Explanation:
The antibodies to the HIV virus may take up to three months to appear in the blood of the infected person.
Therefore, the second blood test is necessary three months after a person thinks that he/she has been exposed to HIV to check the presence of these antibodies and confirm whether the person is infected or not.
Answer:
Vesicle
Explanation:
A vesicle is a spherical organelle of a cell that looks like a sac. Vesicle can be used to move things inside cytosols such as enzyme, protein, or waste material. When vesicle carrying enzyme, its often called lysosomes. The vesicle can also dump material outside the cell by fusing with the cell membranes.
Answer:
To complete this calculation, we divide the amount from the higher trophic level by the amount from the lower trophic level and multiply by one hundred. That is, we divide the smaller number by the bigger one (and multiply by one hundred)
Explanation:
I just looked it up and it said that but idk if that's right
