Question

1. Global warming increases the average temperature 2 degrees and icebergs melt faster. As fresh water is added to the ocean, the little fishies will because the water is said to be _________ relative to the fishies.

Select one:

a. swell, hypertonic

b. swell, hypotonic

c. shrink, hypotonic   

d. shrink, hypertonic

e. neither swell nor shrink, isotonic

2. Does the phenotype of an organism depend ONLY on its genotype?

a. True

b. False

Answer 1

1.b. Swell, Hypotonic

The fresh water is hypotonic water, it has low concentration of salts , so, it will go into the fish which have high concentration of salt in their cells and make it swell. All other options are incorrect. Hypertonic means the salt is more in concentration.

2. b. False

The phenotype is the appearance and behavior of an organism. It depends upon genotype that is the genes and also external factors such as environmental factors. The interaction of genetic factors and environmental factors makes the phenotype of the organism.