Answer:
In the mentioned case, the statement that people who exercise for an hour may have lower levels of cholesterol is a hypothesis, and the cholesterol levels in the experiment would be the dependent variable.
Explanation:
A hypothesis is a suggested statement, that is, based upon the previous information, and is used as an initiation point in a scientific investigation.
Any scientific experiments comprise two variables, that is, dependent and independent variables. The independent variable refers to the variable, which is controlled or modified in a scientific experiment in order to determine its influence on the dependent variable.
The correct answer to this question is:
<span>D. bilateral symmetry.
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There would be more prey than predators, as for a predator to have a balanced diet it should have a plentiful supply of food, meaning it needs more prey. You're welcome!
Answer: d
Explanation: The atmosphere has 4 layers: the troposphere that we live in near the surface of the earth; the stratosphere that houses the ozone layer; the mesosphere, a colder and lower density layer with about 0.1% of the atmosphere; and the thermosphere, the top layer, where the air is hot but very thin.
<span>In the plant kingdom, oaks might be considered K-selected.K-selected species possess a stable populations and produce low numbers of offspring. They have long gestation periods, slow maturation and long life spans.</span>
