Answer:
Paramecium is a genus of eukaryotic, unicellular ciliates, commonly studied as a representative of the ciliate group. Paramecia are widespread in freshwater, brackish, and marine environments and are often very abundant in stagnant basins and ponds
The presence of the gauze, or lack thereof. (Independent Variable)
Also technically the the Dependent Variable, which is whether or not maggots appeared.
He also did a second experiment; the independent variables were the open jar (often called the control nowadays), the jar covered with gauze, and the jar covered with cork.
The dependent variables would be again, the appearance of maggots. They appeared in the uncovered one, appeared on the gauze covered one, but did not survive, and were absent on the cork covered one.
Answer:
There is no variation occurs in the offspring produce from male Drosophila.
Explanation: Crossing over is the key to variation in the organisms because parts of two different chromosomes are replaced with each other. This crossing over only exists in the sex cells or meiosis of cell division. In meiosis, the cell is divided into four daughter cells having half number of chromosome. These cells are not identical to each other due to crossing over.
Answer:
1) it provides mechanical support and elasticity in steam
2) it provides tensile strength with flexibility to those organ in which it is found
3) it occurs mostly in the aerial part of the plant and is restricted to the other layers
4) it contains some chloroplasts which manufacture sugar and starch
5)it allow easy bending in various parts of the plant, without actually breaking
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