active transport. The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration. Active transport requires the assistance of a type of protein called a carrier protein, using energy supplied by ATP.
Answer:
Adaptive immune defense system consists of lymphocytes like B-lymphocytes and T- lymphocytes. B-lymphocytes provides humoral immunity while T- lymphocytes provide cell-mediated immunity to the body.
99% of lymphocytes circulate freely in the blood and lymph. B lymphocytes differentiate into plasma B cells and B memory cells when interact with antigen presented by T helper cells.
Then plasma cells secrete antibodies in the circulation which binds to extracellular antigens through antigen-binding site. Then the bounded antigen is recognized by receptors present on phagocytic cells. This receptor binds the Fc region of antigen bounded antibody and destroy the antigen by phagocytosis.
Answer:
A mass
Explanation:
I learned it in 8th grade.
Animalia is the label that appears to differentiate animals from organisms on other kingdom.
Explanation:
Scientists uses the process called taxonomy to classify the organisms based on their structure, functions and relationship to other organisms.
Eukaryotes represents the domain of life. Domain Eukarya are classified into four kingdoms they are protista, fungi, plantae and animalia.
The kingdom protista represents the organisms that are simple structured and they swim through the water and obtain nutrients from the environment.
In the kingdom fungi like mushrooms absorb nutrients from the environment and they are heterotrophs.
In the plantae kingdom the organisms are plants and they are autotrophs. They prepare their own food.
In Animalia kingdom the organisms are animals and they are multicellular heterotrophs. They do not have cell walls and the reproduction is done sexually and some can reproduce asexual.
I believe the answer is linear :)
