Openings in leaves through which gases enter and exit are called:
a. mesophylls
b. xylems
c. rubiscos
d. stomata
e. phloems
d
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Nematode worms and annelid worms share which of the following features?
A) a digestive tract with two openings (a mouth and an anus) B) molting C) presence of a circulatory system D) presence of segmentation E) absence of species with parasitic lifestyles
Consider the ADH reaction below, and answer the following question. ADH stands for alcohol dehydrogenase
In this reaction, ADH represents the ____.
a. enzyme b. reactant c. product d. activation energy e. trigger
Helicobacter pylori has been associated with:a
emphysema. b. duodenal ulcers. c. peptic ulcers. d. lung cancer. e. skin infections.
The plant in row b of Figure 38-2 demonstrates a photoperiodic response characteristic of:
a. short-day plants. b. day-neutral plants. c. long-day plants. d. long-night plants. e. intermediate-day plants.