D. Muscles are the only tissue in the body that can contract, and are responsible for all movement.
<span>Which structure secretes digestive enzymes that break down carbohydrates, fats, and proteins? A. Pancreas
Most of the enzyme in the intestinal system is made by pancreas. Pancreas will also secrete insulin to make cell utilize glucose. The Large intestine is absorbing water. Salivary glands mostly digest carbohydrate.</span>
Answer:
Variation traits and natural selection.
Explanation:
Darwin stated that all species of organisms arise and develop through natural selection and inheritance of variations
In natural selection, survival was for the fittest. In order for an organism to survive . It had to develop new traits to adapt to its environment .
The variation increases its ability to compete, survive and reproduce. Through reproduction the desires trait is passed down making the organism to be considered fit.
It gets heavier and heavier because it is pressure that holds the earth together and keeps the core of earth a hot SOLID ball instead of liquid
The answer is D.Reproduction
Hope i helped :)
