Answer: to answer a research problem.
Hypothesis is a temporary prediction about how a research outcome will be like. It also called educated guess because you need to have a reasoning to support your prediction. Hypothesis doesn't have to be true since it only a guess.
Answer:
closed circulatory system
Explanation:
The blood is pumped through a closed system of arteries, veins, and capillaries. ... Still, blood can flow backward and the system is only slightly more efficient than the open system of insects. The closed circulatory system has more advantages over the open circulatory system.
Answer:
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA. For example, the sequence ATCGTT might instruct for blue eyes, while ATCGCT might instruct for brown. The complete DNA instruction book, or genome, for a human contains about 3 billion bases and about 20,000 genes on 23 pairs of chromosomes.
I hope this works and I helped :3
Explanation:
Answer:
The falling force of the water pushes the paddles, rotating a wheel.This creates a special channel known as a mill race from the pond to the waterwheel.
Explanation:
A waterwheel is a type of device that takes advantage of flowing or falling water to generate power by using a set of paddles mounted around a wheel.
