Which of the following is a major problem for sessile animals?
a. As adults, they are haploid.
b. They are unable to sexually reproduce.
c. They are limited in the variety of food they can consume.
d. They are not capable of locomotion during their lifetime.
e. They are unable to escape unfavorable environmental conditions.
e
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Microsporidia were previously thought to be an early-branching taxon of Eukarya due to their parasitic lifestyle
However, new evidence suggests they have evolved into a parasitic lifestyle through adaptive gene loss which places them as close relatives of the zygospore-producing A) ascomycetes. B) chytridiomycetes. C) glomeromycetes. D) zygomycetes.
The part of the Drosophila zygote with high bicoid concentration will
A. become the anterior region of the embryo B. become the region of the embryo that has a spiracle C. become the tail region of the embryo D. become the segment that will have wings E. become the segments that will have legs
Which is not a requirement for kelp growth?
a. Continuous nutrients b. Rocky substrate c. Warm waters d. Sunlight
Which genotype doesn't have the Rh factor on the red blood cells?
A) Rh+ Rh+ B) Rh+ Rh- C) Rh- Rh+ D) Rh- Rh-