Homologous pairs of chromosomes separate during meiosis I
__________________ Indicate whether the statement is true or false.
True
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The best control for your experiment in the question above is a tree in which you __________ and you measure the abundance of _____________ over time. remove the ants and the aphids; other insects
A. do not remove any insects; ants B. do not remove any insects; aphids C. add a second ant species; the first ant species D. Actually, the control is built into the original experiment; you do not need to set up a separate control.
In what way is the process of fertilization random?
a. in the type of gamete fertilized b. in the selection of which gametes fuse c. in the recombination of chromosomes d. in the number of chromosomes involved
Which of the following is an example of nonrandom treatment assignment in nonexperimental data?
A. Prices impact on number of products sold B. Effect of being drafted (in a lottery) on career earnings C. Lottery winners' propensity to file for bankruptcy D. None of the answers is correct.
________ permit CO2 to enter the leaf and O2 to escape
A) Stomata B) Mesophyll cells C) Thylakoids D) Chloroplasts