A(n) __________ is an organ that allows exchange of nutrients between an embryo and its mother. Fill in the blank(s) with the appropriate word(s)
ANSWER: placenta
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Pinworm is a nematode parasite that lives in the human rectum, and causes itching in the anal area. What best explains the itching symptom?
A. Any kind of parasite will naturally irritate the skin. B. The itching induces the person to scratch, helping to spread the parasite to another person. C. The itching is a side-effect when the immune system has successfully attacked the nematode. D. The itching is because of the mismatch between humans and the parasite’s natural host. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about nematode diseases? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect 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?
Every hormone in the human body needs to interact with an appropriate receptor on the target cell's membrane before it can cause a response
Indicate whether the statement is true or false
The use of microorganisms to produce useful products is known as
A) biotechnology. B) gene modification. C) genomics. D) recombinant DNA technology. E) cloning.
Resource partitioning can often be seen in similar species that occupy the same geographic area. These species avoid competition by living in different portions of the habitat or by utilizing different food or other resources. They are referred to as being ________.
A. exploitative B. competitive C. allopatric D. sympatric E. fundamental