I think it is A or C
Thanks
Answer : Option A) He is studying oxygen, which can also be found in proteins.
Explanation : A scientist is examining the role of an element found in fats and carbohydrates of living things. Oxygen is the element which makes up to 65% of human body mass. This is also found in proteins inside the body.
Answer:
Plants release oxygen into the atmosphere during the process of photosynthesis. In photosynthesis, plants make their food in the presence of sunlight. Water is extracted from the soil and carbondioxode enters through stomata and combine in the leaves of plants make glucose and oxygen. Glucose is stored in different parts of plant body and oxygen is released into the atmosphere which is used by living organisms.
Autolapithecines are early hominid fossils promoted direc ancestral to humans. Primarily because autralopithecines had the head of chimpanzee but the body that allowed them to walk up right like humans. Their fingers, chest, hand bones, straining gain, shoulders, abdomen, inner ear canals developmental patters, toes and teeth ping point that they were human ancestors.
