How could an embryonic stem cell be used to repair a severed spine?
A. Embryonic stem cells secrete proteins that repair all other cell types, including nerve cells.
B. Embryonic stem cells are primarily involved with neural growth and development.
C. Embryonic stem cells can grow into any other cell type, including a nerve cell.
D. Embryonic stem cells can cause any other cell type to multiply.
Answer: C
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The malleus, incus, and stapes are all part of the:
A. inner ear. B. middle ear. C. outer ear. D. cochlea.
Chromosomes in karyotypes are arranged and ordered by
A) telomere length. B) centromere position. C) length. D) width.
A farmer’s land includes a wilderness area that is home to an endangered species of bird. He wants to sell the land to a developer, and you have been hired to evaluate the environmental concerns. “This little patch of land is not crucial for the bird species!” the farmer says, “In fact, my land is surrounded by several other wilderness patches that also have that bird.” You reply: “It is possible that your land acts as the ____________ and the other areas are ___________ . If that's the case, development would be devastating to the population."
A. sink; sources B. source; sinks C. population; metapopulation D. metapopulation; population Clarify question: What type of thinking is required? Gather Content: What do you already know about metapopulations? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The phylum name Arthropoda refers to:
A. a hard exoskeleton. B. the ability to fly. C. jointed appendages. D. respiratory capabilities. E. a segmented coelom.