<span>Distance has a huge influence on a planet's average surface temperature. So the answer is A. </span><span>Planet B is expected to be cooler than Planet A.</span>
Answer:
Answer is true.
Explanation:
A cell membrane is considered as selectively permeable because it controls or regulates the type of molecules that can pass through it. Substances of small molecules are allowed by the cell membrane while substances with large molecules are not allowed to pass through. For example , amino acids and simple sugar can easily pass through the cell membrane while protein and starch can't pass through it.
The cell membrane is considered or described to be boundary or border between the interior part and exterior part of the cell.
I think D would be your best answer
Answer:
In biology, adaptationism is the perspective that considers that the majority of traits are optimal adaptations achieved by natural selection.
Explanation:
Among his most famous defenders are John Maynard Smith, W.D. Hamilton, Richard Dawkins and Daniel Dennett. Adaptationism has been criticized by authors such as Stephen Jay Gould and Richard Lewontin.
Stephen J. Gould summarizes the "adaptationist program" in the following arguments:
- Adaptation is the central phenomenon of evolution, and the key to understanding its mechanisms.
- Natural selection builds adaptation.
- Natural selection maintains an overwhelmingly predominant relative frequency as a cause of adaptation. Variation only provides raw material and cannot do the job without help.
<u>Characteristics of adaptationism
</u>
Gould and Lewontin (1979) summarize the following way of proceeding from the adaptationist program:
- Atomization of the organism: division of the organism into discrete and disconnected features.
- Optimization of the parts by natural selection.
- Explanation of the adaptations.
<h2>(D) is the correct option </h2>
Explanation:
- Both the stapedius and tensor tympani are striated muscles
- The stapedius is about 6 mm in length, arises from the pyramidal process and the tendon attaches to the posterior neck of the stapes
- The stapedius is a muscle with a high oxidative capacity
- The tensor tympani is about 25 mm in length, the muscle is not as strong as the stapedius, and the tendon also contains more elastic tissue and fat
- The tensor tympani courses through a bony canal in the wall of the anterior middle ear, and attaches to the neck of the manubrium
- The tensor tympani and stapedius muscles are protective reflexes
- They reduce the amount of sound that gets into the inner ear
- They are somewhat similar to the blink reflex thus they can be triggered by loud noise, and when they go off, both ears can be involved
- If stapedius and tensor tympani muscles is not present then loud sounds would cause the ossicles to move too much, potentially causing damage to the inner ear
