Answer:
The answer is B. The most recent common ancestor.
Explanation:
Cladograms are used to illustrate relationships related to morphological and evolutive traits. So then, in a cladogram when organisms are closely related, they appear closer in the branches. Common branches and nodes mean close relationships and common ancestors on a scale of time.
Answer:
Microscopes are often used to examine specimens which are too small to see in detail using only the human eye. Which of the following procedures should be followed prior to placing a specimen slide on the stage of the microscope?
Turn the objective lens to the lowest magnification setting.
Explanation:
Turnin of objective lens to the lowest magnification enhances visibility which would allow the lens to focus on the specimen clearly. It is always important to start with the lowest magnification.
Answer:
D, Mastodon tissues contained protein sequences similar to those of modern-day elephants.
Explanation:
Answer:
I believe the answer is C
hello :]
If the Thymus gland shrank, and stopped producing thymosin, what would happen is that we would loose a few of our "T" cells, which are detrimental to the immune system. Eventually, we can end up with too few T cells to protect ourselves – this is called immunodeficiency – or we can produce T cells that attack our own body – which is called autoimmunity.
