B. Chitin- its a hard and tough substance that occurs widely in nature, particularly in the shells (exoskeletons) of arthropods such as crabs.
A. Bitter/Sour is a bases property.
Answer:
Homozygous
Explanation:
Homozygous individuals are those who do not have genetical variation, it means that they will always look the same generation after generation, those individuals are vulnerable to not adapt to natural selection due to his lack of genes.
You can see homozygous every day, just looking at some pure breeds of dogs or other animals.
Answer:
1)Habitat Isolation (for lobsters)
2)Temporal Isolation (for flowers)
3)Mechanical Isolation (for snails)
4)Gametic Isolation (for clams)
5)Behavioral Isolation (for birds)
Explanation: