. When performing an experiment, what is another word used to describe the treatment?
a. hypothesis
b. control
c. variable
d. data
c. variable
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Is natural selection the same thing as evolution?
A. Yes, they are the same because they both change populations. B. No, they are not the same because natural selection works on individuals, whereas evolution is change in populations. C. Yes, they are the same because they both involve phenotypes and genotypes. D. No, they are not the same because natural selection has never been observed.
Summarize the arguments, both for and against, for the hypothesis that Abraham Lincoln had Marfan syndrome
What will be an ideal response?
Why is it important that the cells of the phloem remain alive
What will be an ideal response?
Which cells make up cartilage?
A) fibroblasts B) osteocytes C) chondrocytes D) hepatocytes