Answer:
Option A, most closely related to mammals
Explanation:
Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.
All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other
Hence, option A is correct
B. Ocetoclast is the answer.
Its conversion of pyruvate, a process where each molecule loses one carbon atom with the release of carbon dioxide
Answer:
Growth is change of physical aspects of the organism. Development is overall changes and progressive changes of the organism.
Explanation:
