For many plants to grow well in hot, dry weather, they must be watered so their stomata will remain open for longer periods of time to let in oxygen.
a. true
b. false
b. false
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How will the destruction of forests affect the amount of carbon dioxide in the atmosphere?
1.It should have no effect. Carbon dioxide is put in the air by the burning of fossil fuels. 2.There will be fewer plants to absorb carbon dioxide through photosynthesis, so carbon dioxide can build up in the atmosphere. 3.It should reduce the amount of carbon dioxide produced since there will be fewer organisms undergoing cellular respiration. 4.Oxygen and carbon dioxide are balanced. If you increase carbon dioxide by plant removal you will decrease the amount of oxygen.
In amphibians, the gray crescent appears
a. after the egg matures. b. after fertilization. c. during blastula formation. d. following gastrulation. e. as a result of tissue specialization
Neurotransmitters are released into a small gap between neurons called a synaptic ___________
Fill in the blank(s) with the appropriate word(s)
After a protein coding gene is identified, its function can be studied by using RNA interference to activate the gene. Indicate whether the statement is true or false