Which one of the following is an example of osmosis?
A. The smell of freshly baked pie spreads throughout a house.
B. Water enters a plant by passing through the root cell membranes.
C. Food in the refrigerator starts to taste like onions because the onions in the vegetable bin have been stored unwrapped.
D. Potassium ions enter a red blood cell through the action of a specific ion transport protein.
B. Water enters a plant by passing through the root cell membranes.
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The hindbrain includes the
a. thalamus. b. pineal gland. c. cerebellum. d. medulla oblongata. e. cerebellum and medulla oblongata.
An example of a secondary sexual characteristic in males is spermatogenesis
____________________ Indicate whether the statement is true or false.
Under favourable conditions, in which form do plasmodial slime moulds primarily exist?
a. as individual flagellated cells b. as spore-forming fruiting bodies c. as a single, multinucleated cellular blob d. as coordinated, multicellular blobs
In order to be called a primitive cell, the entity would have to
A. control chemical reactions. B. have genetic material. C. use a source of energy from its surroundings. D. All of these answers are true.