Cephalization is
(a) the division of the trunk into a scolex, neck, and body.
(b) the presence of a head with sense organs.
(c) sexual reproduction involving self-fertilization.
(d) the ability to replace lost body parts.
(b) the presence of a head with sense organs.
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The pace of evolution does not always occur at a constant rate but is periodically interrupted by rapid bursts of speciation; this is known as ________.
What will be an ideal response?
Human chromosomes numbered 1-22 are classified as ____
a. centrosomes b. somatosomes c. sex chromosomes d. autosomes e. corposomes
In mitosis, chromatids separate and move to the center of the cell during ____________________. Fill in the blank(s) with the appropriate word(s)
Asexual reproduction by budding is represented by:
a. one arm of a starfish breaking off and forming a new individual starfish b. a single-celled diatom undergoing mitosis and cytokinesis to form two new equally sized daughter cells. c. a single-celled yeast undergoing mitosis and unequal cytokenisis to grow a small new cell that will break off to become a daughter cell d. a bacteria undergoing binary fission to create two new daughter cells e. a multicellular hydra growing a small new multicellular hydra that will break off to form a new, independent hydra f. a lizard's unfertilized egg developing into a new adult