Endothermic animals have four-chambered hearts
Indicate whether the statement is true or false
TRUE
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Portuguese water dogs have evolved to spend a lot of time in water and thus have webbed
feet. What process does not occur in these dogs but does occur in other dogs that do not have webbed feet?
a. apoptosis b. mitosis c. cell differentiation d. signaling pathways
There are 64 sense codons in the genetic code and 61 different types of tRNA molecules
Indicate whether the statement is true or false
The use of the Indian mongoose to control rat populations ________
A) shows the effectiveness of biological control B) shows why integrated pest management usually fails C) became a disaster when the mongoose turned out to be as invasive as its target D) is an example of how coevolution makes biological control difficult
Why is the T4 genome resistant to restriction enzymes?
a. It has an RNA genome. b. It modifies its DNA, using 5-hydroxymethlycytosine instead of cytosine. c. It has an ssDNA genome. d. It modifies its DNA by methylating nucleotides.