By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

5 0

3 years ago

Sewage in the ocean can cause and immediate effect in the ecosystem

Natalija [7]

By the Pollution of the ocean can kill plant and animal life near by and those who eat those plants and animals

4 0

3 years ago

The oral contraceptive pill works mainly by: raising the estrogen levels so the female does not ovulate. preventing the egg from

vlabodo [156]

Raising oestrogen levels so female doesn’t ovulate

4 0

3 years ago

A man has blood type AB. If a child has blood type B, what is the genotype and blood type of the mother? Is there only one possi

Sloan [31]

I think conqueror etozomic genotype AA

is correct and was 50% blood type A or AB

(if you ignore the RH)

8 0

3 years ago