Identify four of the features that terrestrial vertebrates had to evolve in order to adapt to a terrestrial environment?
What will be an ideal response?
These features could include:
1. A thick and dry skin that prevented them from drying out.
2. Paired limbs that could support their body weight on land.
3. Lungs that would increase their efficiency of breathing on land.
4. A heart that would separate oxygenated blood from deoxygenated blood.
5. Efficient excretion to decrease the amount of water lost.
6. Amniotic egg that could survive in a terrestrial environment.
7. Internal fertilization to increase the chances of successful reproduction.
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Select the formula below that correctly represents the behavior of CO2 in the blood.
A. CO2 + H2O ? H2CO3 + CO B. CO2 + H+ ? HCO3+ ? H2O + H2CO3 C. CO2 + HCO3- ? H+ + H2O + H2CO3 D. CO2 + H2O ? H2CO3 ? HCO3- + H+ E. CO2 + H2CO3 + O2 ? H2O + CO2 + H2CO3
Regions at the ends of chromosomes that prevent chromosomes from sticking to each other are called ____
a. satellites b. telomeres c. centromeres d. q zones e. p zones
Consider the human population. With regards to the ABO blood groups there are _____ alleles, ____ possible genotypes, and _____ possible phenotypes.
A. 3, 4, 6 B. 2, 4, 6 C. 2, 3, 4 D. 2, 6, 4 E. 3, 6, 4
Given that full sunlight has an intensity of approximately 10,000 ft-c, is photosynthesis in the field generally limited by light?
a. Yes b. No