The stage of mitosis when sister chromatids separate from each other and migrate to opposite poles of a cell is called
A) interphase.
B) prophase.
C) metaphase.
D) anaphase.
E) telophase.
D) anaphase.
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Recall that eukaryotes consist of remarkably different organisms. For instance, compare a squid living in the ocean and a squirrel in your back yard. These two animals have different limbs, different mouths, and different skins
Why are these two animals so morphologically different? Select all that apply. A. These two animals use very different biochemical pathways for respiration. B. These two animals are specialized for different environments and food sources. C. These two animals use very different biochemical pathways for photosynthesis.
Female fireflies identify males by their flashing patterns, which are often so complicated that signals sent by one
species cannot be understood by another species. This reproductive isolating mechanism is called ____.v
a. ecological isolation b. gametic isolation c. temporal isolation d. behavioral isolation e. mechanical isolation
You are a botanist surveying a previously unstudied island. You discover a plant that has a small freeliving
gametophyte that requires external water for fertilization. After fertilization, a large sporophyte with xylem and phloem develops. The gametophyte dies, and the free-living sporophyte eventually releases spores from sporangia on the margins of its leaves. Into which group should you classify this plant?
a. cycads b. seedless vascular plants c. gymnosperms d. angiosperms e. monocots
What is gross primary production?
A. Photosynthetic production plus energy recycled by detritivores B. The carbon fixed during photosynthesis C. The carbon fixed after accounting for cellular respiration D. Energy released by primary consumers