Are blood cells that assimilate bacteria and foreign invaders. antibodies leukocytes hemoglobin platelets

The correct answer for the blank is-

Leukocytes.

Leukocytes ( also called white blood cells) are a type of blood cells that play significant role in the defense mechanism of our body (the immune system).

These cells can be of various types ( such as eosinophils, basophils, neutrophils, lymphocytes).

They assimilate/ ingest any pahtogenic agent ( foreign agent such as bacteria and virus, which cause disease) that enters body and prevent the body from getting infection.

Thus, leukocytes is the right answer.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.