Answer:
The correct answer is-b. isotonic
Explanation:
Isotonic contraction is the contraction in which the tension remains the same but the wrist muscle length changes which results in the movement of a body part. Two types of isotonic contractions are Concentric contractions and Eccentric contractions.
In concentric contractions, muscle contract and become short and Eccentric contractions is opposite to concentric contractions in which muscle lengthens. Isotonic contraction is the most common type of muscle contraction which is encountered within exercise. Thereofore the correct answer is b. isotonic.
OPTIONS:
1. reproductive isolation
2. sympatric speciation
3. habitat isolation
4. prezygotic barriers
Answer:
All of the above
Explanation:
First, let us consider the definition of the above listed terms in the question and see each come to play in the hypothetical situation.
Reproductive isolation occurs when two similar species become prevented from mating together as a result of environmental barriers. This can be seen in the flea population, as they become separated by ecological barrier, since some now live on pronghorn antelopes, while others live on cattle.
Sympatric speciation is a speciation that occurs when new species evolved from an ancestor that they share the same geographical region together, but dwell in overlapping different ecological area.For example, fleas that have preference for cattle blood evolved from pronghorn antelopes fleas, as their ancestor. The two species both dwell in overlapping ranges but still in the same rangeland.
Habitat isolation is a barrier that prevents two species from interbreeding as a result of differences in where they live. For example, fleas on cattle cannot interbreed with fleas on pronghorn antelopes.
Prezygotic barriers are reproductive mechanisms that prevent fertilization. Habitat isolation is an example of prezygotic reproductive mechanism that prevents fertilization to take place between fleas on cattle and fleas on pronghorn antelopes.
<u>Answer:</u>
B) During radioactive decay, atoms break down, releasing particles or energy.
<h2>A) option is correct </h2>
Explanation:
Projective tests are intended to uncover feelings, desires, and conflicts that are hidden from conscious awareness
The goal of such tests is to uncover the hidden conflicts or emotions that one project onto the test with the hope that these issues can then be addressed through psychotherapy or other appropriate treatments
By interpreting the responses obtained, psychoanalysts hope to uncover unconscious feelings that might be causing problems in a person's life and these type of tests remain quite popular and are extensively used in both clinical and forensic settings
Drugs<span> are chemicals that </span>affect<span> the brain by tapping into its communication system and interfering with the way neurons normally send, receive, and process information. Some </span>drugs<span>, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter.
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