Protists are a group of organisms that are characterized as Eukaryotes that are neither plants nor animals nor fungi. They are very diverse, and there are many hypotheses about their classification. The cladogram for protists is constantly changing and, sometimes, there are opposite hypotheses that both have data to support them. What is the implication of a changing hypothesis.
It is acceptable because data are still being collected.
It is acceptable everything in science should always change.
It is not acceptable because the correct answer needs to be found.
It is not acceptable because science never changes.
Answer:It is acceptable because data are still being collected.
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❖ After stating a question, you form a hypothesis.
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Answer:
D. Each receptor triggers one particular type of cell behavior, for example, activating gene expression.
Explanation:
- Each extracellular signal molecule can induce different responses depending on the target cell.
- Lipophilic receptors diffuse or carried across the cell's plasma membrane and bind to an intracellular receptor. For example steroid hormones are transported via carrier proteins.
- Some signalling molecules only induce response from specific cells.
- A single receptor can be activated by different signal molecules.
Answer D. Cells of the new individual would have double the necessary number of chromosomes.
Explanation:
