The properties of water that contribute To The formation of the meniscus are:
Meniscus is defined as the upward or downward curve located at the surface of a liquid in a tube.
When water is placed in a tube or wettable container, a concave or downward meniscus is formed due to surface tension created in water through the following properties of water:
- Cohesion: This is the tendency of water molecules to stick to itself.
- Adhesion: This is the tendency of water molecules to stick to other molecules that are charged or polar.
Therefore, the cohesion and adhesion of water molecules contributes to the formation of meniscus.
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Answer - A
The ratio of a child with clear skin with that of freckled skin is 1:2.
When genotype rr mates with genotype Rr, the following genotypes are expected:
Rr = clear skin dominant
rr= freckled skin
Answer;
Population; physiological modifications at the individual level.
The adaptation of the sled dog best describes adaptation at the population level while the dog exposed to seasonal colder temperatures has physiological modifications at the individual level.
Explanation;
-The bodies of sled dogs are covered with two coats of hair that work together to provide a double layer of warmth. The under layer is very short and the dog sheds it in the spring to keep from overheating during warmer temperatures.
-During the colder winter months, this under layer works as an insulator against the dog's skin to keep his body warm and his core body temperature consistent. This adaptation best describes adaptation at the population level while the dog exposed to seasonal colder temperatures has physiological modifications at the individual level.