Answer the following question given this paragraph: Q: Each microspore develops into a pollen grain containing a male what? Choices: - progesterone - zygote - sperm - gametophyte A:
gametophyte
(Question)
Answer the following question given this paragraph: Protists are eukaryotes , which means their cells have a nucleus and other membrane-bound organelles. Most, but not all, protists are single-celled. Other than these features, they have very little in common. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi. Q: What is another term for all eukaryotic organisms that are neither animals, nor plants, nor fungi? Choices: - paramecium - prokaryotes - arthropods - protists A:
(Answer)
protists
Ques: Answer the following question given this paragraph: 19.2 Population Genetics Both genetic and environmental factors can cause phenotypic variation in a population. Different alleles can confer different phenotypes, and different environments can also cause individuals to look or act differently. Only those differences encoded in an individual's genes, however, can be passed to its offspring and, thus, be a target of natural selection. Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities. Genetic drift stems from the chance occurrence that some individuals in the germ line have more offspring than others. When individuals leave or join the population, allele frequencies can change as a result of gene flow. Mutations to an individual's DNA may introduce new variation into a population. Allele frequencies can also be altered when individuals do not randomly mate with others in the group. Q: What works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities? Choices: - same selection - artificial selection - characteristic selection - natural selection A:
Ans: natural selection
(Q).
Answer the following question given this paragraph: cytoskeleton. This is a network of fibers and tubules that crisscrosses the cytoplasm. The cytoskeleton helps the cell keep its shape. Q: What part of the cell helps it keep its shape? Choices: - nucleus - cytoplasm - enzymes - cytoskeleton A:
(A).
cytoskeleton
Ques:Answer the following question given this paragraph: Galaxies can be spiral, elliptical, or irregular. Q: Galaxies can be spiral, elliptical, or which other type? Choices: - oblong - simple - vertical - irregular A:

Ans:irregular
Answer the following question given this paragraph: Microevolution is the process by which organisms change in small ways over time. Q: What is the process by which organisms change in small ways over time? Choices: - spontaneous mutation - natural selection - adaptation - microevolution A:
microevolution