Why must an animal such as an amphibian remain moist?
What will be an ideal response?
Even though an amphibian may contain lungs and or gills, those structures do not entirely meet the
respiration needs of the animal. In addition, respiration through the skin occurs, and a moist
environment is necessary for gas exchange to take place effectively through the skin.
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Research by Christopher Cullis has shown that
a. the genome size of plants varies little between species. b. the genome size of individual plants of the same species is constant. c. a plant’s environment can act as a selective agent to establish advantageous variants, but these variants cannot be transmitted to the next generation. d. a plant’s environment can act as a selective agent to establish advantageous variants, and these variants can be transmitted to the next generation. e. the genome size of plants is related to plant size.
Which DNA sequence below would be a palindromic sequence?
a. AGCGCT b. AGCAGC c. AAAGGG d. ACACAC e. AGTCGT
In what way are bacteriorhodopsin and chlorophyll similar?
a. They are both found in archaea. b. They both capture photons of light. c. They are both found in protists. d. They are both found in plants.
Answer the following questions true (T) or false (F)
1. Neurons are not true cells because they aren't spherical in shape. 2. A nerve is larger than a neuron. 3. The neuron being stimulated by a neurotransmitter comes after the synaptic cleft.