Metamorphosis occurs in which of the following vertebrate classes?
a. Chondrichthyes
b. Reptilia
c. Myxiniformes
d. Amphibia
e. Actinistia
d
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Staphylococcus aureus is a common cause of food poisoning in the United States.
Answer the following statement true (T) or false (F)
Place the following steps of allopatric speciation in their correct order:
A. A flood causes a physical barrier down the middle of a population. B. A population covers a large area. C. The two separate populations evolve differently and form new species. D. When the water recedes, the two new species do not mate. 1. first event 2. second event 3. third event 4. fourth event
To prevent a shipwreck, submarines determine where objects are positioned under water using sonar, sound waves
This method of detection is similar to a(n): a. snake using thermoreceptors to locate its prey. b. shark using lateral line receptors to locate its prey. c. frog using mating calls to locate a female. d. earthworm being able to determine its position underground using a statocyst. e. bat using echolocation to hunt prey.
The chemiosmotic hypothesis is an important concept in our understanding of cellular metabolism in general because it explains _____
A) how ATP is synthesized by a proton motive force B) how electron transport can fuel substrate-level phosphorylation C) the sequence of the electron transport chain molecules D) the reduction of oxygen to water in the final steps of oxidative metabolism