Biology, 12.11.2019 01:31 imamador6396
In preparation for hibernation, ground squirrels tend to increase the proportion of unsaturated fatty acids incorporated into their membrane lipids. given that the animals must survive a significant drop in body temperature during hibernation, which of the following statements correctly explains why this particular change in fatty acid composition occurs?
a) the fluidity of the squirrels' cell membranes must be increased, and unsaturated fatty acids assist in this because they have fewer van der waal's interactions between them than saturated fatty acids. b) the fluidity of the squirrels' cell membranes must be decreased, and unsaturated fatty acids assist in this because they have more van der waal's interactions between them than saturated fatty acids. c) the fluidity of the squirrels' cell membranes must be increased, and unsaturated fatty acids assist in this because they have more van der waal's interactions between them than saturated fatty acids. d)the fluidity of the squirrels' cell membranes must be decreased, and unsaturated fatty acids assist in this because they have fewer van der waal's interactions between them than saturated fatty acids.
Answers: 2
Biology, 22.06.2019 01:00
Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell
Answers: 1
Biology, 22.06.2019 14:00
Science which of the following is an example of a cyclic behavior that is seasonal? i think the answer is d, i just need to double check : ). a. running from predators. b. searching for water. c. hunting at night. d. migrating for warmth. ***
Answers: 1
Biology, 22.06.2019 21:00
An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25
Answers: 2
In preparation for hibernation, ground squirrels tend to increase the proportion of unsaturated fatt...
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