This would be true. the rust cray fish is an aggressive type that competes for food
The correct answer is B - homozygous
Ans.
Cell-to-cell communication allows signalling of essential substances between the plant cells, which are surrounded by cell walls. The molecules used by plants for long-distance signalling are known as hormones, such as auxin, ethylene, and gibberelin.
These hormones are secreted by one plant cell and received by another plant cell, where it exerts it affect. Thus, the correct answer to be fill in the blank is 'option A). hormones.'
The gradual evolution for the family Equidae (horse family) has been well documented within the fossil record.
