Answer:
The stomach and intestines have a thin simple columnar epithelial layer for secretion and absorption. The submucosa is a thick layer of loose connective tissue that surrounds the mucosa. This layer also contains blood vessels, lymphatic vessels, and nerves.
Explanation:
Answer:
I believe that the smallest is Nucleotide, bases, genes, DNA, Chromsomes.
Explanation:
Answer:B. Primary consumer
Explanation:The reason why Its b because that primary comsumers are mostly herbivores or the primary comsumer is the first consumer to eat the producer.Hope it helps!
I think the correct answer from the choices listed above is the first option. <span>Men do not have all gametes in their testes at birth. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
1.) Population density.
2.)Growth rate.
3.)Birth rate.
4.)Death rate.