Sebaceous glands are present on all skin surfaces except on the palms, soles, lips, and parts of the external genitalia.
Sebaceous glands are part of the pilosebaceous unit. There are generally numerous sebaceous glands per each hair follicle. Sebaceous glands are true exocrine glands made up of lobules and ducts.
The lobules are made up of sebaceous cells which produce sebum, a fatty substance that lubricates hair and has bactericidal and fungicidal properties.
These sebaceous or oil glands are also classified as holocrine exocrine glands. It means that the entire sebaceous cell loses its cytoplasm and dies in the process of discharging its contents during the excretory process toward the middle of the gland into its lumen.
To learn more about exocrine glands here
brainly.com/question/1231871
#SPJ4
Tha main components in blood are the plasma, red blood cells, white blood cells, and blood platelets.
Plasma is like the main component that makes up most of the blood. It has a light yellow color and it carries many substances including nutrients, waste, hormones and more.
Red blood cells are the reason why blood is red in color. They have a hemoglobin inside them which can help carry oxygen for the tissues and organs. In order to maximize the oxygen carrying capacity, they don't have a nucleus.
White blood cells can be divided into phagocytes and lymphocytes. Their main function is to protect us from diseases. Phahocytes and engulf and digest bacteria, while lymphocytes can produce antibodies.
Blood platelets can cause blood clotting which can stop us from bleeding forever. They're not cells, but just fragments of cells. They also don't have nucleus since they're not complete cells.
Answer:
what kind of question is that
Answer:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes (endosymbiosis) is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
Explanation:
Both mitochondria and chloroplasts are similar to bacteria in size, and like bacteria, they reproduce by dividing in two.
Answer:
All cells except sex cells
Explanation:
