Saturated fats _________(increase/decrease) the amount of bad cholesterol (LDL) in arteries.
Fill in the blank(s) with the appropriate word(s).
increase
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Kin selection is a form of natural selection in which ____
a. dominant individuals share resources disproportionately with their close relatives b. individuals help relatives only if they are likely to return the favor in the future c. group members sacrifice their own reproductive success to help individuals who are not their direct descendants d. shared alleles for altruism are perpetuated if the assisted animals produce more offspring than the helper could have produced if he had not helped e. shared alleles for altruism are perpetuated if the helper produces more offspring than the relatives that he aids
Oocyte nuclear transfer can be used to
A) allow women with mitochondrial diseases to have normal offspring. B) allow women with any genetic disease to have normal offspring. C) allow parents to control all of the phenotypic characteristics of their children. D) create embryos for stem cell therapy.
What is the difference between the heartwood and sapwood of a tree?
A) Heartwood contains xylem, and sapwood contains phloem. B) Sapwood contains xylem, and heartwood contains phloem. C) Heartwood no longer transports water and minerals, and sapwood still conducts xylem sap. D) Heartwood contains old phloem that no longer functions, and sapwood contains functioning phloem.
Hyphae are found in ____________.
a. protists b. bacteria c. fungi d. plants