The teeth of grain-eating animals (such as horses) are usually broad and ridged. This makes the teeth suitable for grinding and chewing. Meat-eating animals (such as lions) have pointed teeth that are good for puncturing and ripping flesh. This
illustrates
A) a result of natural selection only.
B) the connection between form and function only.
C) a food web.
D) a result of natural selection as well as the connection between form and function.
Answer: D
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Viral replication occurs
A) intracellularly. B) extracellularly. C) both intracellularly and extracellularly. D) either intracellularly or extracellularly, depending on the virus involved.
The semifluid mass of food and gastric juice in the human stomach is termed
A. feces. B. chyme. C. glottis. D. cud. E. mash.
How many chromosomes should be in a generative cell nucleus?
A) 8 B) 16 C) 24 D) 32
When Mendel performed a dihybrid cross of plants heterozygous for seed color and seed shape, he saw a 9:3:3:1 ratio in the next generation. Explain what this ratio describes and what each number represents
What will be an ideal response?