In eudicots, vascular tissues in stems are arranged in rings around the ____.
A. ground tissue
B. dermal tissue
C. epidermis
D. cortex
E. pith
Answer: E
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In the experiment involving bluegill sunfish and their choice of diet, when equal numbers of small,
medium, and large Daphnia are present,
a. the sunfish prefer small Daphnia. b. the sunfish prefer medium Daphnia. c. the sunfish prefer large Daphnia. d. the sunfish show no preference. e. sunfish do not consume Daphnia.
The number of individuals that make up a population’s gene pool is the ____
a. population distribution b. population growth c. population birth rate d. population size e. carrying capacity
Consider a dihybrid cross of two true-breeding Drosophila: a male with red eyes and normal wings and a female with orange eyes and hairy wings. The F1 flies are of two types: orange eye, normal wing males and red eye, normal wing females. What can you conclude about the mutant traits, orange eye and hairy wing?
A: Both traits are recessive. B: The eye color gene is sex-linked. C: The wing hair trait is sex-linked. D: Both A and B E: Both A and C.
A bird flashing white patches underneath its wings is an example of what type of communication?
A) Sound B) Chemical C) Passive visual D) Physical contact E) Active visual