Which atomic particle has no charge and is located in the nucleus?
A. proton
B. electron
C. neutron
D. ion
E. isotope
C
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Which of the following represents a problem with the concept of blending inheritance?
A. Blending inheritance cannot explain the disappearance of a trait several generations after it appeared. B. Blending inheritance leads to an increase in variation over time. C. Blending inheritance allows for rare variants of traits to increase in frequency. D. None of the other answer options is correct.
The lineage ____ shared several derived traits with early tetrapods, such as the shapes and positions of
bones in their appendages, and apparently gave rise to the tetrapods.
a. acanthodians b. conodonts c. osteolepiforms d. placoderms e. ostracoderms
An embolus could block blood flow to the ________, resulting in a myocardial infarction, or it may block blood in the ________ and cause a stroke
A) brain; heart B) heart; kidney C) heart; brain D) brain; kidney E) liver; kidney
Microorganisms may possibly adapt to which of the following conditions?
a. selective pressures exerted by chemicals b. high temperatures c. extremely low temperatures d. extremely dry and hot seasons e. all of these