Through the leaves pores called the stomata
the handles cannot be made by the same metal as metal is a good conductor of heat so when we cook food the handle will also be hot and it will not be comfortable to hold the utensils there for the handles made of wood or plastic as they are insulators and will not become hot while Heating
so the answer is C.
The pumping of the heart is tied to the respiratory system
Answer:
The correct answer is option - d. Production of primary spermatocytes.
Explanation:
The accessory cells or supporting cells present within the seminiferous tubules of reproductive system termed as the Sertoli cells. They play various roles in the body and reproductive system.
Sertoli cells make blood-testis barrier in adjacent Sertoli cells in the seminiferous tubules. These cells secrete different types of enzymes and hormones such as inhibin which are also secreted by ovary and placenta in females. Sertoli cells produce seminiferous tubular fluid to provide nutrition to the sperm. Apoptotic germ cells are timely eliminated by these cells.
Thus, the correct answer is option D. Production of primary spermatocytes.
