In general, the term ________________ is used to describe disease causing agents.
Fill in the blank(s) with the appropriate word(s).
Ans: Pathogen
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Why are pea plants (Pisum sativum) a good species for genetics studies?
A. They have many distinctly identifiable forms of genetic traits.
B. They can be self-fertilized for true-breeding genetic traits.
C. They produce large numbers of offspring (the peas).
D. All of the answer choices are correct.
E. Growth of pea plants is simple and easy.
Which statement is not true?
1.Carbon dioxide is more soluble in fluid than in oxygen. 2.Carbon dioxide diffuses more rapidly across the respiratory surface than oxygen does. 3.The major muscle involved in breathing is the diaphragm. 4.Oxygen is carried primarily by blood plasma. 5.Carbon dioxide is carried by the blood plasma.
The cerebral region that controls emotions and
functions in memory is the a. medulla. b. corpus callosum. c. limbic system. d. cerebral cortex. e. cerebellum.
An autotriploid may arise when three sperm cells are involved in fertilization of a single egg
Indicate whether the statement is true or false