They all have pollen in the center which makes them duplicate and make more of their species of flower
Answer:
The act of carefully watching or examining a person or object when something is happening is known as an observation. An act of deriving rational conclusion from known facts or circumstances is called inference. ... On the other hand, the inference is an explanation or assumption of what one has perceived or seen.
Explanation:
Answer:
Zoologist
Explanation:
A person who specializes in the study of animals is called a zoologist. Zoologists who study certain kinds of animals have their own names.A botanist is a scientist who studies or experiments with plants. These plants may include a range of organisms, including flowers, trees and algae. Botanists are a type of biologist. Botanists study all forms of plant life.
<span>Cytotoxic t-cell subpopulations are specialized to combat intracellular pathogens, whereas helper t-cell subpopulations are specialized to combat extracellular pathogens.
</span>Cytotoxic t-cell are CD8+ cells. Cytotoxic t-cell uses granzymes to <span>kill </span><span>intracellular bacteria, that lives in the cytosol such as viruses. They identify the pathogen forgein peptids that are bounded to MHC-I on the cell surface.
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cd4+ T helper (Th) cells include Th1, Th2, and Th17 cells. They contribute to aliergic reactions and fighting extracellular parasites.
