If there are 20 duplicated chromosomes in a cell, how many centromeres are there?
A) 10
B) 20
C) 30
D) 40
B
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Amanda was studying turtles based on DNA analysis. Under the current classification scheme, which of the following turtle species are thought to be most closely related? (1) Graptemys ouachitensis, (2) Trachemys scripta, (3) Apalone spinifera, (4) Graptemys kohni.
A. 1 and 3 due to inductive reasoning B. 1 and 3 due to deductive reasoning C. 2 and 3 due to inductive reasoning D. 1 and 4 due to inductive reasoning E. 2 and 3 due to deductive reasoning F. 1 and 4 due to deductive reasoning Clarify Question 1. What is the key concept addressed by the question? 2. What type of thinking is required? 3. What key words does the question contain and what do they mean? Gather Content 1. What do you know about relatedness based on species names?How does it relate to the question? Consider Possibilities 1. What other information is related to the question? Which information is most useful? 2. In which examples are general principles being used and in which are specific results being considered? Choose Answer 1. Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process 1. 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?
Adaptive immunity is also referred to as ____ immunity
a. acquired b. innate c. secondary
d. latent e. hidden
The reef flat of fringing reefs descends into a lagoon
Indicate whether the statement is true or false
In an experimental procedure, the researcher has established multiple levels of a chemical, or amounts of light, or some other factor at the beginning of the experiment, in order to determine if and how much the biological system responds. The manipulated factor at varying levels is the
A. Both control group and standardized variable are correct. B. control group. C. independent variable. D. standardized variable. E. dependent variable.