<span>Reptilian humanoids are intelligent, supernatural, or highly developed reptile-like humanoids in mythology, popular fiction, and fringe theories. They also appear in some conspiracy theories, most notably those of David Icke, and in science fiction. Some authors refer to them as reptoids or dinosauroids.Christians think they are demons who lurk inside the Earth and most people agree on that they have a connection with the illuminati.</span>
<span>Is that detailed enough?</span>
Answer:
c) thin filaments slide past thick filaments towards the M line
Explanation:
Each muscle fiber has many myofibrils composed of many sarcomeres which have thick and thin filaments. Thick filaments are made of myosin protein whereas thin filaments have actin protein. There are various bands and zones in a sarcomere like A band, I band etc. H zone consists of only thick filaments. It has a central vertical line called as M line where the accessory proteins hold together the thick filaments.
According to sliding filament mechanism, sarcomere must shorten for muscle to contract. However sarcomere shortening is not caused due to shortening of thick and thin filaments. Instead they slide over each other towards the M line which leads to shortening of sarcomere without changing the length of filaments. The sliding is caused by forming of cross bridges between actin and myosin proteins.
Answer:
Sexual Reproduction
Explanation:
There are two types of reproduction: asexual and sexual reproduction. Though asexual reproduction is faster and more energy efficient, sexual reproduction better promotes genetic diversity through new combinations of alleles during meiosis and fertilization.
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The answer is A: Mass extinction.
"Abrupt disappearance of many land and marine species" = extinction of many species.
