Biology, 24.09.2019 01:20, slonzyy1682
if an atom of sulfur is neutral, how many electrons should it have?
Answers: 1
Biology, 21.06.2019 20:50, wdgyvwyv8840
Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection
Answers: 1
Biology, 22.06.2019 00:00, nicolemaefahey
Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating
Answers: 2
Biology, 22.06.2019 10:00, AM28
Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?
Answers: 2
if an atom of sulfur is neutral, how many electrons should it have?...
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