The enzyme pepsin acts on proteins to produce peptides which are later broken into amino acids in the small intestine
Answer:
The explanation is given in the explanation section.
Explanation:
Osteochondroma is a condition where the cartilage and the bone faces excess growth at the end of the bone near the growth plate. Most often, it strikes the large bones in the leg, the shoulder blade, or in the pelvis. It usually happens between the ages of 10 and 30. It affects males and females equally. The actual cause of Osteochondroma is still not known. There are two types of Osteochondroma. One type that is inherited and one type that is not inherited.
Answer:
faced a struggle for survival
Explanation:
The woolly mammoths became extinct, unlike the other species, because the woolly mammoths faced a struggle for survival due to changing of environmental conditions. Global warming is the main cause of extinction of woolly mammoth which destroy their habitats about 10,500 years ago. The environmental conditions are not favourable for them so they faced struggle for survival which causes extinction of woolly mammoth.
The correct answer is an accumulation of microorganisms in deep marine environments.
Chalk rock refers to a pure form of limestone produced in tropical and warm seas about 100 million years ago in the Cretaceous period. The microscopic marine algae known as coccoliths thrived in the ancient seas. Their shells were comprised of calcite. With the death of the algae, their bodies sunk to the floor of the sea and sediment of chalk got deposited.
Over many years layers of chalk sediment got deposited and resulted in compaction of loose sediment into solid chalk rock.
