Which of the following is a colonial form of green algae?
A) Volvox
B) Giardia
C) Paramecium
D) Plasmodium
A
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A gene pool is
A. the genes that are unique to a species. B. all the genes in a population. C. all the similar genes in a gene family. D. a swimming hole for geneticists. E. a group of species that look alike but are not located in the same area at the same time.
The impact of a large meteorite with Earth would have most likely caused mass extinctions by
A. creating large clouds of dust that blocked out sunlight and destroying plant life. B. causing a great prolonged rise in the earth's temperature and destroying plant life. C. destroying plant life on Earth. D. creating large clouds of dust that blocked out sunlight.
The cell membrane can be described most accurately as
A) permeable to all small molecules and ions. B) impermeable to larger molecules independent of their chemical characteristics. C) permeable to some molecules and impermeable to others. D) impermeable to all polar molecules. E) permeable to all molecules except water.
A chromosome with a different combination of alleles than parental that is created by crossing over between homologous chromosomes is termed ________
Fill in the blank(s) with correct word