Answer:
The answer is False, genes are turned on and off according to when they are needed.
Explanation:
so false!
Answer:
They have a closed circulatory system.
Explanation:
In an open circulatory system, blood vessels transport all fluids into a cavity. When the animal moves, the blood inside the cavity moves freely around the body in all directions.
Closed circulatory systems are different to open circulatory systems because blood never leaves the blood vessels. Instead, it is transferred from one blood vessel to another continuously without entering a cavity.
Answer:
D: salty
Explanation:
The Majority of the earth is made of the ocean
i'm not sure this is correct tho
Water is the universal solvent.
water is called the "universal solvent" because it dissolves more substances than any other liquid and is found as a solvent in a variety of solutions.
Answer: They must be randomly chosen, meaning that each member of the larger population has an equal chance of being chosen. They must be large enough so as not to skew the results. The optimal size of the sample group depends on the precise degree of confidence required for making an inference. Simple random sampling is the basic sampling technique where we select a group of subjects (a sample) for study from a larger group (a population). Each individual is chosen entirely by chance and each member of the population has an equal chance of being included in the sample.
Hope this helps... Stay safe and have a great day/night!!! :D
