Describe the first obtained evidence for the existence of life in the deeper reaches of the ocean
What will be an ideal response?
The recovery of transatlantic telegraph cables from the seafloor, which showed evidence of encrusting and fouling organisms.
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Frogs and toads belong to the ____ lineage
a. Caudata b. Aves c. Squamata d. Gymnophiona e. Anura
For maximum effect, one should
a. perform strength training only. b. perform aerobic exercise only. c. perform both aerobic exercises and strength training. d. perform much strength training and only a little aerobic exercise. e. perform much aerobic exercise and only a little strength training.
Hershey and Chase's experiment with radioactively labeled viruses made use of the fact that protein,
but not DNA, contains A. phosphorus. B. iron. C. sulfur. D. nitrogen. E. potassium.
Which type of cell secretes antibodies into the blood?
A) Memory B) Cytotoxic T C) Helper T D) Plasma