Answer:
between a an b, but I think it's a
Explanation:
the reduced genetic diversity which results when a population is descended from a small number of colonizing ancestors.
Answer:
(for 1st question)
Plato's answer: This world exists because both systems are involved in the movement and support of the body, and they work together to perform these functions. Bones provide support and give the body structure. Muscles give strength, and the contraction and relaxation of muscles allow for different movements.
Explanation:
Another Answer: The muscular system is responsible for the movement of the human body. Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a person's body weight. Each of these muscles is a discrete organ constructed of skeletal muscle tissue, blood vessels, tendons, and nerves.
Answer:
the answer is false. Dieting usually leads to weight loss.
Answer:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
Answer:
D
Explanation:
Sample D will undergo the fastest rate when subjected to chemical weathering.
What is weathering?
- It is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
- Physical weathering is also known as mechanical weathering. It entails breaking rocks into smaller sized chunks.
- Chemical weathering is the decomposition of rocks by chemical action.
From the given choices, option D will have the largest surface area exposed to chemical actions. It has more surface area compared to the others. The more broken a mass is, the more its surface area is.
Reaction rates are affected by:
- Increase in surface area
- Increase in temperature
- Higher concentration
- Increase in pressure
The last cube has the highest surface area and will have the fastest rate of weathering.
