Which of the boxed subsets of the DNA molecule pictured below consists of a nucleotide?
1.1
2.2
3.3
4.4
5.5
2
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Polyploidy in plants
A. is very common. B. allows for adaptation to diverse environments. C. may alter the levels of gene expression. D. allows humans to create plants with unusual flowers. E. All of these statements are true regarding polyploidy in plants.
"Tardigrada" means ____
a. tough exoskeleton b. many proglottids c. slow walker d. short digestive system e. Coelom
The centromere is the structure that holds the chromatids together.
Answer the following statement true (T) or false (F)
Fick's law of diffusion states that the rate of diffusion of a gas across a membrane depends on all of the following except
A. the size of the gas molecule. B. the membrane surface area. C. which membrane transport proteins are present. D. the width of the membrane. E. the concentration difference of the gas on the two sides of the membrane.