Answer:
The answer is letter B. Producer, primary consumer, secondary consumer
If a scientist sets up an experiment and the results do not support his hypothesis he should conclude that "he may want to alter some aspects of experiment and try it again".
<u>Answer:</u> Option B
<u>Explanation:</u>
Research and experimenting is all about search and re-search for achieving acceptable result in order to meet the demand of project accordingly. It demand huge patience and hard work but also smart work for saving time as much as possible.
If a scientist results do not support hypothesis than after a short break he should alter some steps or parameters of experiment and try it again. Because it may occurred due to an error. And errors are needed to be understood and then rectify it by repeating the procedures with more sincerity.
Yes, it is true that evolution is a theory, which is a well substantiated explanation for observable facts.
Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
Different characteristics tend to exist within any given population as a result of mutation, genetic recombination and other sources of genetic variation.
Evolution occurs when evolutionary processes such as natural selection (including sexual selection) and genetic drift act on this variation, resulting in certain characteristics becoming more common or rare within a population.
The evolutionary pressures that determine whether a characteristic would be common or rare within a population constantly change, resulting in a change in heritable characteristics arising over successive generations. It is this process of evolution that has given rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms and molecules.
Learn more about Evolution here : brainly.com/question/4207376
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Correct Order: ***see attached pic for additional help***
Receptors (sense organs, muscles, glands, etc.) receive stimuli from the environment or from inside your body.
Information from receptors is sent to the spinal cord and brain by the peripheral nervous system.
The central nervous system processes information received from the peripheral nervous system.
The central nervous system sends out the processed information to the peripheral nervous system.
The peripheral nervous system sends a message to the body part that needs to respond so you can react appropriately to the stimulus.
Answer:
If we didn't have a head, we wouldn't have a brain
