True
materials are more ductile when hot and at room temp become more brittle
hope this helps!
B. the plant kingdom
why:
animals are multicellular, cannot make their own food, and move about.
protists are unicellular, make their own food, and move about.
Answer:
PLEASE MARK ANSWER AS BRAINLIEST IF IT IS GOOD!
B B
b Bb Bb
b Bb Bb
R R
r Rr Rr
r Rr Rr
Explanation:
Helper T cells are found in the <u>Thymus.</u>
Explanation:
Immature T-cells are formed in the bone marrow, just like any other blood cells, through the process of hematopoiesis. These immature T cells are then transported to the thymus where they mature and differentiate into the different types of T cells; cytotoxic, helper and regulatory. T-helper cells, also called CD4⁺ cells, are important in activating B-cells and T-cytotoxic cells in case of infection.
B. Science can answer only questions about the natural world.
