Answer:
The biological levels of organization of living things arranged from the simplest to most complex are: Organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere
nucleotide
codon
polypeptide
gene
DNA
chromosomes
i think im not sure
B and D (the 4th answer)
Explanation:
Only animals in the same <u>species</u> can always breed and have fertile offspring.
Although animals in the same genus<em> can </em>breed, their offspring are usually infertile.
Answer: Don’t know but I want to know.
