Answer: D. All of the above
Explanation:
A scientific theory includes the explanation for the different aspects of cause of natural processes or events. These explanations are repeated tested and verified by utilizing the scientific methodologies. The scientific methodologies includes the making an observation, constructing a scientific question, drawing hypothesis, conducting experimentation, analyzing the data or results, and concluding the results.
A theory can be used for testing the hypothesis, investigating the cause of the natural phenomena, and give evidences for validating the knowledge of existing theories.
<u>Answer:</u>
Searches for its food sources by growing outward and retracts.
Option: (D)
<u>Explanation:</u>
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The slime mold is a eukaryotic organism with a nucleus and they grow in warm regions on decaying log/vegetation.
- When food is available the slime mould exists as a single celled organism.
- When there is a shortage of food the slime mold extends into branches in search of food.
- It extends outward to the location where the food is present. Then it retracts to its initial position.
Answer: A
Explanation:
For a child to be a carrier, one parent must be homozygous dominant and other one must be heterozygous. So that the cross results should show results for two homozygous dominant offspring and two heterozygous offspring
If a cell was to undergo all the activities, eg cell division my mitosis, it results in growth. When we were still zygotes, cell division happened by mitosis resulting in the grown ups we are now. Over division results in growth of cancer cells. And if the body exercises, Lymphocytes are produced more, resulting in more of them circulating in blood preventing disease attacks