Hematocrit makes up approximately ____ percent of the total blood volume

a. 10
b. 25
c. 45
d. 50
e. 70


ANSWER: c

Biology & Microbiology

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Which two experiments best demonstrate that the gene AP3  is important for flower development? (Choose two)  

_____ When a wild type AP3 transgene is expressed in an AP3 mutant, the plant produces normal flowers. _____ When AP3 is deleted, the plant produces deformed flowers. _____  When the genes PI and AP3 are both deleted, the plant produces deformed flowers. _____  When a wild type AP3 transgene is overexpressed, the plant produces normal flowers. _____  When a wild type AP3 transgene is overexpressed, the plant produces deformed flowers. _____  When AP3 is duplicated, the plant produces deformed flowers. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean?   Gather Content · What do you already know about the flower development genes?   Consider Possibilities · Consider the different answer options. Which can you rule out?   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?

Biology & Microbiology

Most monocots have numerous ____ roots

arising from the stem.

a. adventitious b. primary c. fibrous d. secondary e. tap

Biology & Microbiology

In which season does lake stratification occur?

A) summer B) spring C) fall D) winter

Biology & Microbiology

Viruses contain both DNA and RNA

Indicate whether the statement is true or false

Biology & Microbiology