What three steps do all adaptive immune responses include?
What will be an ideal response?
(1 ) Lymphocytes recognize the invading microbe; (2 ) they attack the invading microbe; and (3 ) they retain memory of the invader to prevent future infection by the same microbe.
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The digestive system of an earthworm is more advanced than that of a flatworm
Indicate whether the statement is true or false.
A developing nation with a rapidly increasing population is reaching its carrying capacity. What change(s) could allow it to increase its carrying capacity? (Check all that apply)
_____ a cultural shift to eating less meat _____ education for women _____ greater yield from agricultural crops _____ increased availability of birth control _____ water treatment plants 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 the carrying capacity of a population? 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?
In plants, ammonium is often converted to nitrate before it can be used by the plant. This process is known as
A) nitrogen fixation. B) photosynthesis. C) decarboxylation. D) nitrification. E) denitrification.
Translation in bacterial and eukaryotic cells has many similarities, but there are also several key differences. Which of the following is one of those differences that is seen in eukaryotes?
A) Eukartyotic mRNA contains a Shine—Dalgarno sequence that increases the efficiency of translation. B) Eukaryotes only require one release factor that recognizes all three stop codons. C) Translation and transcription are coupled. D) Eukaryotes use the 5? G-cap and Poly-A-tail on their mRNAs to initiate translation. E) Eukaryotic ribosomes are smaller with fewer proteins and RNA molecules.