Invertebrates
(a) do not have a vertebral column.
(b) have a vertebral column.
(c) are all members of the phylum Chordata.
(d) do not include animals that are members of the phylum Chordata.
(a) do not have a vertebral column.
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A mycorrhizae is a symbiotic association between roots and fungi
Indicate whether this statement is TRUE or FALSE.
Without _____, humans might have a tail
a. differentiation b. epigenetics c. cell migrations d. apoptosis e. the maternal gene effect
The mammalian circadian pacemaker is located in the
A. hippocampus. B. somatosensory cortex. C. adrenal gland. D. brainstem. E. suprachiasmatic nucleus.
The osmoregulatory/excretory system of an earthworm is based on the operation of _____
A) protonephridia B) metanephridia C) Malpighian tubules D) nephrons