Unit Test 4 Review Part III: Question Preview (ID: 12245)


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Which cycle of matter would be most affected by an increase in the size of green leaves?
a) phosphorous b) water c) carbon dioxide d) oxygen
How do food molecules and nutrients enter the cell?
a) through the nucleus b) through the plasma membrane c) through the chlorophyll in the cell d) through other specialized cells.
How do the cells of the body respond to little exercise and a poor diet?
a) they stop reproducing b) they reduce their rate of respiration c) they stop absorbing nutrients d) they increase their production of protein.
mitosis produces
a) two cells, each with half as many chromosomes as the parent cell b) two cells, each with the same number of chromosomes as the parent cell c) four cells, each with the same number of chromosomes as the parent cell d) four cells, each with half as many chromosomes as the parent cell
Which is the final product of meiosis?
a) two cells, each with the same number of chromosomes as the parent cell. b) four cells, each with the same number of chromosomes as the parent cell. c) two cells, each with half as many chromosomes as the parent cell. d) four cells, each with half as many chromosomes as the parent cell.
Where do plants get most of the energy they need to live and grow?
a) water b) soil c) air d) sunlight
an organism that performs photosynthesis is called
a) a decomposer b) a consumer c) an autotroph d) a heterotroph
A relationship in which one organism benefits from another without harming the other organism is called:
a) mutualism b) commensalism c) parasitism d) predation
Which of these is a concern about the use of biotechnology?
a) increased crop yield b) development of new vaccines c) increased job opportunities d) creation of new pathogens
How does smoking tobacco most likely affect a person's ability to perform physical activities?
a) it interferes with balance and coordination b) it decreases the ability to make decisions rapidly c) it decreases stamina and cardiovascular efficiency d) it decreases the speed and power of muscle contractions
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