Biology, 06.01.2020 12:31 aliyahgregory
In an experiment to determine the effect of exercise on pulse rate, a student checks his pulse rate before
and after exercising for several minutes. the purpose of checking his pulse rate before exercising is that it
(1) serves as the conclusion for the experiment
(2) is needed to justify the sample size
(3) serves as a control for the experiment
(4) is needed to formulate a hypothesis
Answers: 3
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Compare and contrast the relative importance of the sporophyte vs gametophyte generation between nonvascular plants (bryophytes), seedless vascular plants and seed plants, and explain the ecological significance of a larger sporophyte generation
Answers: 1
Biology, 22.06.2019 07:50, darceline1574
Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d
Answers: 2
Biology, 22.06.2019 09:00, moraleskarina491
Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.
Answers: 2
Biology, 22.06.2019 13:00, blesskids600
This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient
Answers: 1
In an experiment to determine the effect of exercise on pulse rate, a student checks his pulse rate...
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