A Characteristic Only Shared by Angiosperms and Gymnosperms Is

question 17

Multiple Choice

A characteristic only shared by angiosperms and gymnosperms is

• A)vascular tissue.
• B)fruit production.
• C)the production of seeds.
• D)protection of the embryo.

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Definitions:

Blood-Testis Barrier

A physical barrier formed by Sertoli cells in the seminiferous tubules of the testicles, crucial for protecting developing sperm from harmful substances and immune reactions.

Sustentacular Cells

Supportive cells found in various tissues, such as the male reproductive system, providing nourishment and support to other cells.

Primary Spermatocytes

Male germ cells that have undergone meiotic division I, leading to the formation of secondary spermatocytes.

Perineum

Area inferior to the pelvic diaphragm between the thighs; extends from the coccyx to the pubis.