Explanation:
A keystone species is an organism that helps define an entire ecosystem. By keeping populations of mussels and barnacles in check, this sea star helps ensure healthy populations of seaweeds and the communities that feed on them—sea urchins, sea snails, limpets, and bivalves.
Answer:
Chimpanzees are the animals which are the closes to humans. Infact, the genome of chimpanzee is 98.6% similar to the genome of humans. Humans are thought to have evolved from chimpanzees.
Chimpanzees walk on all fours and have longer arms than legs. They are called “knuckle walkers” because they use their knuckles for support. Like humans, chimps have opposable thumbs and opposable big toes which allow them to grip things with their feet. This feature of chimpanzees for using knuckles for support makes them unique.
Chimpanzees are the only kind of animals which have the capability to groom each other which makes them unique.
Answer: The correct answer is- Chlorophyll a.
Chlorophyll is a green pigment that is found in the chloroplast of green plants and algae.
Chlorophyll a is considered as the primary pigment for photosynthesis as it is present in all photosynthetic eukaryotes.
In the first phase of photosynthesis (formation of food using carbon dioxide and water in the presence of sunlight), which is a light dependent phase, chlorophyll absorbs the solar energy and converts it into chemical energy in the form of ATP, and NADPH.
This energy is further utilized in the next phase (that is a light independent phase of photosynthesis) in formation of food (glucose) .
Answer: Insulin (the hormone that converts food into glucose) "Insulin shunts the energy that you eat (sugar, if you will) into fat. The fat cells turns that energy into fat, fatty acids and triglycerides, and then the fat cell makes leptin," Lustig said.
Rocks get older as the layers go down. Youngest at the top, oldest at the bottom.
