Answer the following question given this paragraph: Bottleneck effect occurs when a population suddenly gets much smaller. This might happen because of a natural disaster such as a forest fire. By chance, allele frequencies of the survivors may be different from those of the original population. Q: What effect occurs when a population suddenly gets much smaller, due to natural disaster or other cause? Choices: - convergence effect - limitation effect - extinction effect - bottleneck effect A:
bottleneck effect
(Question)
Answer the following question given this paragraph: Wave amplitude of a transverse wave is the difference in height between a crest and the resting position. Wave amplitude of a longitudinal wave is the distance between particles of the medium where it is compressed by the wave. Q: Wave amplitude of a transverse wave is the difference in height between what and the resting position? Choices: - a valley - a cascade - a magnitude - a crest A:
(Answer)
a crest
Ques: Answer the following question given this paragraph: Surface currents are like streams flowing through the surface of the ocean. They are caused mainly by winds. Earth's rotation influences their direction. This is called the Coriolis effect. Surface currents may affect the climate of nearby coasts. Q: What are surface currents mainly caused by? Choices: - lightning - waves - rains - winds A:
Ans: winds
(Q).
Answer the following question given this paragraph: Q: Particulates from cigarette smoke that enter what structures can cause a permanent reduction in lung capacity? Choices: - chambers - cells - glands - alveoli A:
(A).
alveoli
Ques:Answer the following question given this paragraph: Hydrogen chloride contains one atom of hydrogen and one atom of chlorine. Because the. Q: Hydrogen chloride contains one atom of hydrogen and one atom of what? Choices: - magnesium - calcium - nitrogen - chlorine A:

Ans:chlorine
Question: Answer the following question given this paragraph: connection is the basis of somatic reflexes. The corneal reflex is contraction of the orbicularis oculi muscle to blink the eyelid when something touches the surface of the eye. Stretch reflexes maintain a constant length of muscles by causing a contraction of a muscle to compensate for a stretch that can be sensed by a specialized receptor called a muscle spindle. Q: Triggering a blink when something touches the surface of the eye, the corneal reflex is what type of reflex? Choices: - dendritic - sensory - orgasmic - somatic A:
Answer:
somatic