Which of the following statements regarding evolutionary relationships among land plants is correct? (Select all correct answer options.)
A. The ancestor of all land plants was a green
alga.
B. Bryophytes and vascular plants together
form a monophyletic group.
C. Vascular plants diverged more recently
than bryophytes.
D. Bryophytes form a monophyletic group.
E. Vascular plants evolved from mosses.
A,B,C
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The bones of the vertebrate skeleton are connected by flexor joints
Indicate whether the statement is true or false.
All of the following are methods used to exchange heat with the environment except
A. evaporation. B. diffusion. C. radiation. D. conduction. E. convection.
If the surface area of a cell increases by a factor of 100, the volume of that cell will
A) remain the same. B) increase by a factor of 100. C) increase by a factor of 1000. D) increase by a factor of 10. E) decrease by a factor of 100.
Why might scientists often be hesitant to believe the results of a single experiment testing a particular treatment, even when the results are peer reviewed and statistically significant?
A) The experimental and control groups may be too alike. B) The results may not be true for humans if the experiment used a model organism. C) A single experiment may have eliminated most of the alternative hypotheses. D) The experiment was likely to have had many biases that affected the results.