Which statement is true about meiosis? 1-It helps an organism grow in size.

2-It replaces dead or damaged cells.

3-It produces four genetically identical gametes.

4-It is a source of variation in sexually reproducing organisms.

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Where in the cell are ribosomes made?

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans