Define Senescence

question 38

Essay

Define senescence. Discuss one hypothesis that attempts to explain senescence.

Understand the interdisciplinary approach in studying plant-human interactions, including ethnobotany.

Evaluate the importance of seed dormancy and methods to break dormancy for seed germination.

Describe the evolution of seed plants and their ecological and evolutionary significance.

Understand basic concepts of bits and their binary values.

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Definitions:

Secondary Spermatocyte

Spermatocyte derived from a primary spermatocyte by the first meiotic division; each secondary spermatocyte gives rise by the second meiotic division to two spermatids.

Spermatid

Cell derived from the secondary spermatocyte; gives rise to a spermatozoon.

Scrotum

An external sac of skin and muscle containing the testicles in males.

Testes

Male reproductive organs that produce sperm and hormones, including testosterone.