Which group of islands is where Charles Darwin observed variation among organisms and compared these organisms
to those found on the mainland?
a. Virgin Islands
b. Canary Islands
c. Channel Islands
d. Falkland Islands
e. Galapagos Islands
e
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“Germination” can refer to two different events:
A. the arrival of the pollen grain at the ovule, and the growth of the seedling from the seed. B. the development of the flower, and the growth of the seedling from the seed. C. the growth of the pollen tube into the embryo sac, and the growth of the seedling from the seed. D. the development of the fruit from the ovary, and the growth of the seedling from the seed.
The “tunic” of tunicate refers to
a. a body covering. b. the type of food-gathering mechanism. c. muscle arrangements in the larva. d. the immature stage of a true fish. e. organ rotation during reorganization.
In what respect do hominins differ from all other anthropoids?
A) lack of a tail B) eyes on the front of the face C) bipedal posture D) opposable thumbs
Luke sprained his ankle, tearing some of the collagen protein that forms his ligaments. Some types of collagen consist of three polypeptide chains twisted together to form a rope-like strand. What level of protein structure does this rope-like strand represent?
A. primary B. secondary C. tertiary D. quaternary