Plants get their energy from the sun using Photosynthesis and animals get it from eating food.
Answer: (c) seed type
Explanation:
An independent variable is the one which can be altered or manually manipulated in an experiment. The effect of such manipulation can be examined on the dependent variable of the experiment. The dependent variable cannot be manipulated in an experiment instead it is the outcome of the experiment.
The seed type is the correct answer because the seed type can vary and the effect of which can be examined on the seed germination process and rate of seed germination.
Carbon is released into the atmosphere only during the burning of fossil fuels
Explanation:
During the process of fuel burning, carbon is released in the atmosphere. The human invented power plants, factories, cars and other vehicles releases carbon in the form of carbon di-oxide in atmosphere.
However, the cellular respiration is similar to that of fuel burning as it is too a combustion process. But the carbon produced in this process fuels the inner cellular activities rather than releasing it in the atmosphere.
Answer:
Water
Explanation:
In simple words, the volume of a cell refers to <u>the amount of water it contains</u>.
In eukaryotic cells may change their volume according to the effects of either the loss or gain of water. Furthermore, these changes in cell volume are extremely important as they work as a signal for different cell processes such as migration, proliferation, or death.
Therefore, the change of cell volume is principally due to the loss or gain of <u>water</u>.
