Found mostly in marine environments, members of the ____ Lophotrochozoan phylum have a muscular, mucuscovered
proboscis that they can turn inside out to capture prey.
a. Rotifera
b. Mollusca
c. Platyhelminthes
d. Annelida
e. Nemertea
ANSWER: e
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Use the dichotomous key in Table 10.2 to identify a gram-negative rod that ferments lactose and uses citric acid as its sole carbon source.
A) Citrobacter B) Escherichia} C) Lactobacillus D) Pseudomonas E) Staphylococcus
Secondary growth in woody plants greatly increases the amount of ________
a. primary xylem and phloem b. vascular cambium c. epidermis d. secondary xylem and phloem
The heart valve guarding the entrance to the aorta is the ________ valve.
Fill in the blank(s) with the appropriate word(s).
It has been suggested that scientists mimic photosynthesis by building artificial leaves that can respond to electricity from solar cells. The electricity could be applied to the leaves to split water into oxygen and hydrogen. The hydrogen could then be
used a fuel. Which of these is the best explanation of how this mimics photosynthesis? A) Both this proposed process and photosynthesis store solar energy as electricity for later use. B) Both this proposed process and photosynthesis split water into hydrogen and oxygen. C) The mimic leaves would have to be green like photosynthesizing leaves in order to respond to light. D) Both processes convert electrical energy to light energy.