for number one your answer is D)
for number 2 your answer is A)
The structure of the sarcomere affects its function in several ways. The overlap of actin and myosin gives rise to the length-tension curve, which shows how sarcomere force output decreases if the muscle is stretched so that fewer cross-bridges can form or compressed until actin filaments interfere with each other.- wikipidiea
Yes i think so . ;( i really domt have notiing else to type
Answer:
Viruses are acellular.
Explanation:
Viruses do not have cells, so we can say that viruses are acellular organisms, the structural and functional unit of living things. This feature contradicts the Cell Theory, which says that all living things are formed by cells. Therefore, because they do not have cells, many claim that viruses are not living things. Viruses are only able to reproduce within a host cell. For this reason we say that they are obligate intracellular parasites.
We have that there are 5 main tissue types in most vertebrates: epithelial, connective, nervous and muscle tissue. It is clear that muscle tissue helps the movement of various parts of the body and it is not dound in the skin. Also, interstitial tissue is the name with which we refer to extracellular fluids like blood plasma and thus this is wrong too (sweat is not a type of tissue). Nervous tissue is also deep under the skin. Connective tissue is the tissue that connects other types of tissues with the bones etc.; for example there is conenctive tissue in the brain. Finally, the correct answer is epithelial; they form the outermost layers of our cell structure and they serve to protect the rest of the tissue as well as provide us with sensations from the outside.
