Answer the following statements true (T) or false (F)
1. Plant behavior is defined as response to stimuli.
2. Brassinosteroids produced by plants are closely related chemically to animal steroid hormones.
3. One reason auxins are called the "master plant hormones" is because they mostly work apart from other hormones.
4. One reason magnesium is important to plants is that it is part of the chlorophyll molecule.
1. TRUE
2. TRUE
3. FALSE
4. TRUE
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Which biome is a treeless plain that occurs around the Arctic Circle?
a. shortgrass prarie b. taiga c. cold desert d. cold grassland e. tundra
One idea to mitigate the effects of burning fossil fuels on atmospheric CO2 concentrations is to pipe liquid CO2 into the ocean at depths of 2500 feet or greater. At the high pressures at such depths, CO2 is heavier than water
What potential effects might result from implementing such a scheme? A) increased carbonate concentrations in the deep waters B) increased growth of corals from a change in the carbonate–bicarbonate equilibrium C) no effect because carbon dioxide is not soluble in water D) increased acidity and decreased carbonate concentrations in the deep waters
Which pathway correctly traces a drop of blood through the vascular system?
A) right ventricle, lungs, left atrium, left ventricle, body, right atrium B) left ventricle, lungs, right atrium, right ventricle, body, left atrium C) right ventricle, lungs, right atrium, left ventricle, body, left atrium D) left ventricle, lungs, left atrium, right ventricle, body, right atrium
In the carbon cycle, one of the ways in which carbon is returned to the atmosphere is by respiration
____________________ Indicate whether the statement is true or false.