The observations and research on aphid color changes can most directly be summarized in that
A. Koga and Fugatsu proved that the color change from red to green in aphids was ecologically favorable to survival.
B. the method of paper fiber separation of pigment molecules showed that Ricketsiella bacteria were the source of the green coloration of aphids.
C. species of organisms can be chemically diverse and affect each other, even among similar groups of aphids and bacteria.
D. it turned out that the green appearance of aphids was because of the large amount of green Ricketsiella bacteria coating their bodies.
E. All of the answer choices are correct.
C. species of organisms can be chemically diverse and affect each other, even among similar groups of aphids and bacteria.
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Could two individuals who were heterozygous for the Huntington's allele have a normal child?
a. Yes b. No
Which of the following statements is true?
A) Gymnosperms have seeds that are not enclosed in a protective casing, while angiosperms have flowers that produce seeds with a protective casing. B) Gymnosperms have flowers that produce seeds with a protective casing, while angiosperms have seeds that are not enclosed in a protective casing. C) Gymnosperms lack true roots and leaves, while angiosperms lack lignin cell walls. D) Gymnosperms lack seeds, while angiosperms have flowers that produce seeds with a protective casing.
Colorado tick fever is caused by a ________ and can cause headache, muscle aches and conjunctivitis in some individuals
A) coltivirus B) rotavirus C) mumps virus D) hantavirus E) coxsackie B virus
When there are high levels of disturbance in a community, the number of K-selected species should increase along with the overall diversity of the community.
Answer the following statement true (T) or false (F)