Pseudocoelomates have a body cavity that is not completely lined with __________. These animals
include __________ and roundworms.
a. endoderm; nemerteans
b. endoderm; flatworms
c. mesoderm; rotifers
d. mesoderm; flatworms
e. mesoderm; nemerteans
C
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Egg and sperm cells are ____
a. sporophytes b. gametes c. gametophytes d. diploid e. somatic cells
Which event occurs in mitosis but NOT in meiosis?
a. bipolar spindle formation b. tethering of chromosomes to microtubules c. chromosomes dragged to poles by microtubules d. nuclear envelopes breaking up and reforming e. none of these
Briefly discuss five ways to decrease one’s risk of developing cancer.. What will be an ideal response?
In Selye's general adaptation syndrome theory of stress, the initial response of the autonomic nervous system to a stressor occurs in the _____ phase.
A. resistance B. primary response C. global responsiveness D. alarm reaction