Which of the following elements is considered an essential micronutrient for plants?
a. phosphorus
b. silver
c. molybdenum
d. carbon
e. lead
C
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Some cytoskeletal elements are more permanent than others. Which components of the cytoskeleton are dynamic structures?
A. microtubules B. microfilaments C. intermediate filaments D. both microtubules and intermediate filaments E. both microtubules and microfilaments
At the ________ level, an ecologist might focus on the factors that affect the relative abundance of various populations in the area
Fill in the blank(s) with correct word
Which feature of the mammalian skeleton provides an advantage for animals that are land-based predators?
A. Elongated hindlimbs that propel them forward. B. Long legs and running on the tips of elongated phalanges. C. Bipedal locomotion on the soles of the feet. D. Walking on their toes. E. All of these are advantages for land-based predators.
Where in a cell does glycolysis occur?
A. Cytoplasm B. Golgi body C. Nucleoid D. Mitochondrion E. Rough endoplasmic reticulum