Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
Answer:
d. The ovaries receive blood from the ovarian and uterine arteries.
Explanation:
All the other options are correct except option D.
The ovary is only supplied with oxygenated blood from the ovarian arteries. The uterine arteries supply blood to the uterus alone.
A mixture consists of two or more substances which may be elements, compounds or both mixed together physically in any proportion, but not chemically combined. However, a compound consists of two or more elements that are chemically combined in a fixed proportion. Hence, a compound is different from a mixture.
Due to human demand because of its importance to life, the Earth's most precious resource is. <span>C. freshwater</span>