Answer the following question given this paragraph: Q: Some terrestrial species breathe through their skin and oral cavity because they lack what? Choices: - windpipe - nose - mouth - lungs A:
lungs
(Question)
Answer the following question given this paragraph: 11.2 Mechanisms of Evolution There are four factors that can change the allele frequencies of a population. Natural selection works by selecting for alleles that confer beneficial traits or behaviors, while selecting against those for deleterious qualities. Mutations introduce new alleles into a population. Genetic drift stems from the chance occurrence that some individuals have more offspring than others and results in changes in allele frequencies that are random in direction. When individuals leave or join the population, allele frequencies can change as a result of gene flow. Q: Out of the four ways that allele frequencies of a population can be changed, which way is caused by individuals leaving or joining the population? Choices: - Allopatric speciation - spontaneous mutation - mass extinction - gene flow A:
(Answer)
gene flow
Ques: Answer the following question given this paragraph: The enormous number of species is due to the tremendous variety of environments in which they can live. Q: The enormous number of species is due to the tremendous variety of what? Choices: - tissues - sounds - measurements - environments A:
Ans: environments
(Q).
Answer the following question given this paragraph: After citric acid forms, it goes through a series of reactions that release energy. The energy is captured in molecules of NADH, ATP, and FADH 2 , another energy-carrying compound. Carbon dioxide is also released as a waste product of these reactions. Q: After citric acid forms, it goes through a series of reactions that release what, which is then captured in special molecules? Choices: - metabolytes - chlorophyll - hydrogen - energy A:
(A).
energy
Ques:Answer the following question given this paragraph: One trait invertebrates like the sponge and tarantula share is lack of a backbone. In fact, they don't have any bones at all. These are defining traits of all invertebrates. Some invertebrates have a skeleton, but it isn't made of bone. Many other traits of invertebrates show considerable diversity. Q: What traits do the sponge and tarantula share? Choices: - number of eyes - number of legs - lifespan - lack of backbone A:

Ans:lack of backbone
Answer the following question given this paragraph: Q: What are microscopic vessels with very thin, porous walls? Choices: - veins - arteries - valves - capillaries A:
capillaries