Answer:
The most important organelle in a cell is the nucleus. Because it contains DNA which is in control of directing all the activities of a cell. And all the RNAs needed for the cell are synthesized in the nucleus
Explanation: I’m doing the DBA now
Rock
Explanation:
Naturally occurring solid mixtures of one or more minerals in organic matter is called a rock.
- A rock is an aggregate of minerals.
- There are three classes of rocks; sedimentary, metamorphic and igneous rocks.
- The rock cycle process provides a pathway through which the different types of rocks are changed.
- Igneous rocks are formed from molten rocks that cools and solidifies.
- Sedimentary rocks are formed from the weathered and eroded materials.
- Metamorphic rocks are changed rocks.
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Answer:
Sexual reproduction is the process in which new organisms are created, by combining the genetic information from two individuals of different sexes. The genetic information is carried on chromosomes within the nucleus of specialized sex cells called gametes.
Explanation:
Student’s academic performance can be tested with two factors i.e. oral lecture and oral lecture plus giving notes to the students.
<h3>How might you design an experiment to test this?</h3>
We should take two factors i.e. oral lecture and oral lecture plus giving notes to the students. We set two groups having equal number of students. First group is treated with the first factor i.e. oral lecture while on the other hand, the second group is treated with second factor i.e. giving notes. After one month, the performance of both groups should be tested through monthly test.
<h3>B. What is a possible hypothesis?</h3>
The possible hypothesis is that we get better results from the students of the second group.
<h3>C. What is the independent variable?</h3>
The independent variable are the notes and lecture.
<h3>D. What is the dependent variable?</h3>
The dependent variable are the performance of the student.
E. What is the control group, and what is the experimental group?
The control group is taking no notes whereas the experimental group is taking notes.
<h3>F. What are the constants in your experiment?</h3>
The constants in the experiment is the independent variable because it is not affected by any other factor.
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