Answer:
A
Explanation:
The head of the ulna is found at the distal end of the bone.
Answer:
The endosymbiotic theory explains the origins of eukaryotic cells.
Explanation:
Answer:
The human mitochondrial DNA (mtDNA) is a double-stranded, circular molecule of 16 569 bp and contains 37 genes coding for two rRNAs, 22 tRNAs and 13 polypeptides. The mtDNA-encoded polypeptides are all subunits of enzyme complexes of the oxidative phosphorylation system.
Explanation:
Mitochondria should be the answer
The correct answer is D. Tortoises and snails have analogous organs, and they don't belong to the same species.