Oceans and the tropical rain forests contribute equally to global productivity
Indicate whether the statement is true or false.
T
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Which of the following phyla is NOT made up of bryophytes?
a. Pterophyta b. Hepatophyta c. Bryophyta d. Anthocerophyta e. all of these are bryophytes
Which of the following is NOT a constituent of
an open circulatory system?
a. hemolymph b. internal cavities c. a heart d. capillaries e. all of these are constituents of an open circulatory system
The increase and decrease of individuals in a population around the carrying capacity in response to resource availability and other environmental factors is known as which growth pattern?
A) exponential growth B) logistic growth C) zero growth D) death rate
What type of cell helps to stimulate B cells to produce antibodies?
A) mast cell B) cytotoxic T cell C) helper T cell D) macrophage