A detrital food web and a grazing food web are separate because each starts at a different level.
Answer the following statement true (T) or false (F)
False
Detrital and grazing food webs are connected because members of detrital food webs may become food for aboveground carnivores.
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Sexual reproduction in the cellular slime mold Dictyostelium discoideum involves the production of special spores called
A. amoeba flagellates. B. sporozoites. C. discoidia. D. macrocysts.
Proteins are made in the ____________________, but are present in all parts of the cell
Fill in the blank(s) with correct word
Stress can have a significant effect on the body. Chronic stress
a. may lead to excessive stimulation of neurons. b. is associated with elevated levels of epinephrine from the adrenal cortex. c. is associated with elevated levels of cortisol from the adrenal cortex. d. may lead to increased blood flow to the brain, especially the hippocampus. e. may suppress stimulation of neurons.
Which structure in the development of the amphibian is equivalent to the primitive knot in bird
development?
a. the archenteron b. the dorsal lip of the blastopore c. the ventral lip of the blastopore d. ectoderm e. endoderm