<span>Red blood cells do not contain a nucleus because their purpose is to carry oxygen around the body. Due to the fact these cells do not have a nucleus, their capacity to carry this oxygen is increased greatly.</span>

8 0

3 years ago

name three things that show evidence of evolution. write one sentence for each, explaining why it demonstrates evidence.

12345 [234]

The answers are;

Fossils; present-day species have been shown to be closely related to some extinct species from the past as shown by fossils.
Molecular biology; biochemical analysis of biomolecules such as DNA and proteins show that species are related to one another and share a common ancestor.
Anatomy; Certain anatomical structures between species have shown convergent or divergent homology indicating sharing a common ancestry.

8 0

3 years ago