A difference between female rats and humans is that a rat's vagina connects to the urogenital aperture and humans do not have a urogenital aperture. The vagina is a short, muscular canal located below the urethra. Additionally, the rat's vagina is much shorter in length than the human vagina. In female rats, the ovaries which produces egg cells and female hormones, are small and located just below the kidneys inside the peritoneal membrane. Also the shape of the uterus in rats is different than in humans. In rats it is Y-shaped and in humans it's a pear shaped organ.
Measure the amount of energy in the phytoplankton and the amount of light entering the aquarium. Then measure the amount of energy in the phytoplankton after exposure to the light and determine the difference.
Explanation:
Phytoplanktons like most of the plants use chlorophyll, sunlight and carbon di-oxide for photosynthesis but it depends on other organisms to consume extra energy as they are unable to gain enough energy from their consumption of light. This differs among the different species of planktons.
It can be observed in an aquarium that a phytoplankton is gaining less energy than the energy they have absorbed by the light and this can be done by measuring the energy before and after the photosynthesis.
Next you should analyze the data
All cells have a nucleus in the middle of it (Hope that helps)
Termites depend on digestive tract to digest the complex sugars into simpler molecules that they can use for food. Cellulose is a major sugar and it is broken down in the hindgut of the termite by microbes into molecules called short-chain fatty acids. The termite's cells use these acids as nourishment, just like our cells do.
therefore, answer is A. mutualism
