Answer:
1. D,
2. C,
3. A,
4. C,
5. B
Explanation:
those are the answers to the questions
D- species
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Answer:
b
Explanation:
b is the nucleus and it contains the dna
It makes up an ecosystem and the surroundings
It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart.
