Four of the following statements are true of the organism depicted in the figure above. Which one is the exception?
a. It represents a symbiotic relationship.
b. It contains two different organisms.
c. It decreases the absorptive surface of the partner.
d. It can live in harsh climates.
e. It can break down the bedrock it colonizes.
ANSWER: c
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Which of the following primates is a hominin?
a. bonobos b. gorillas c. humans d. gibbons e. more than one of these
Macromolecules that are capable of self-replication are:a
proteins. b. polysaccharides. c. steroids. d. DNA and RNA. e. triglycerides.
The acrosome contains enzymes that:a
digest the zona pellucida. b. digest the endometrium. c. stimulate ovulation. d. stimulate sperm motility. e. inhibit premature ejaculation
The eukaryotic cell cycle consists of four phases, in the following order:
A) S phase (DNA synthesis), mitosis, Gap 1, and Gap 2. B) Gap 1, mitosis, Gap 2, and S phase (DNA synthesis). C) Gap 1, Gap 2, mitosis, and S phase (DNA synthesis). D) S phase (DNA synthesis), Gap 2, Gap 1, and mitosis. E) mitosis, Gap 1, S phase (DNA synthesis), and Gap 2.