The answer is D, Because dinosaurs appears in the Triassic period while insects appeared in the Devonian period which is about 160 million years about, which rules out A and B. Humans have been on Earth for almost 3 million years, which is nothing compared to the history of life in earth, which about 4,000 million years of life history, so D
Answer:
During photosynthesis the oxygen is released into the atmosphere through
All photosynthetic eukaryotic cells contain chloroplasts that use the radiant energy of sunlight to convert carbon dioxide and water into carbohydrates. As a byproduct of photosynthesis, oxygen gas is also released into the atmosphere through tiny openings in the leaves called stomata.
Explanation:
The answer is the muscular system
DNA was found to contain only four different chemical building blocks.
It is crucial that the process of mitosis is error free. This is because other wise healthy cells can become cancer cells since mitosis deals with the whole human reproduction thing, its best to keep it clean so nothing happens to the healthy cells or else it can be infected and possibly harm a person/baby.
