Answer:
The preferable options will be -
T-tubule system
Explanation:
- T-tubules or transverse tubules are a part of the skeletal and cardiac muscle membrane systems. They are the cell membrane extensions that can penetrate into the center of those muscles.
- It contains a large amount of on channels, transporters, and pumps. It allows the transmission of the action potential, frequently. T-tubules also regulates the cellular calcium concentration.
Answer:
Human activities cause the emission of halogen source gases that contain chlorine and bromine atoms. These emissions into the atmosphere ultimately lead to stratospheric ozone depletion.
Explanation:
Hope this helped!
The statement which correctly describes natural selection is (1) it favors the survival of certain members of the species and results in a change in the proportion of individuals with highly <span>adaptive traits.
Natural selection, by definition talks about the successful passing down of genes from older generations to younger generations. These then are better adapted to their environment. This is exactly what the first answer is about. </span>
Answer:
Scientists believe that fitness is not only the ability to have physical fitness but it also refers to the adaptations that make an organism survive in its environment.
According to biological studies, biologists believe that the ability of an organism to survive in a particular area and to pass on its characteristics to its offspring is fitness.
The health scientists define fitness as the ability of an individual to be physically fit and to move without pain.
The scientists which study psychology believe that fitness is the well functioning of a person;s body as well as his/her mind.
The Cell Wall☺Hope this helps.
