D- The digestive system breaks down your food and your circulatory system takes it throughout your body
Answer:
The option 'All cells contain a nucleus' is not a part of the cell theory.
Explanation:
The cell theory proposed by scientists illustrates that every organism whether prokaryotic or eukaryotic is made up of a cell or different kinds of cells. It also that explains that cells are made from living things. According to the cell theory, cells are termed as the basic unit of life, without which life is not possible.
The cell theory does not claim that every cell must have a nucleus because many cells like cells of prokaryotes lack nucleus. Their genetic material is dispersed in the cytoplasm.
The type of direct that increases glycogen stored in muscle and endurance time at marathon speed most is high carbohydrate. Option C.
<h3>What is glycogen?</h3>
The term glycogen refers to the form in which carbohydrate is stored in the body. The energy that is stored as glycogen in the body can be slowly released when required by hydrolysis of the glycogen molecule.
The type of direct that increases glycogen stored in muscle and endurance time at marathon speed most is high carbohydrate. Option C.
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Missing parts;
Which type of direct increases glycogen stored in muscle and endurance time at marathon speed most? A. high fat B. mixed C. high carbohydrate D. fasting
Species evolve independently possibly due to geographical isolations or behavioural isolations.
Geographical isolation includes the isolation of 2 groups of the same species. Since these 2 groups live in different locations, (e.g. a volcanic eruption resulting in a barrier between one side of an ocean and another side of the ocean), they will have different selection pressures in their different environments as well (e.g. one side of the ocean may have more sunlight and thus more underwater plantations than the other side of the ocean). Natural selection will eliminate those with disadvantageous characteristics (e.g. Fishes that only eat plants and nothing else on the side of the ocean with little plantations) with unfavourable alleles, and select for those with advantageous characteristics (e.g. Fishes are able to eat plants and other organic substances as well on the side of the ocean with little plantations) with favourable alleles.
Since the 2 groups have different selection pressures, natural selection will occur in different ways, selecting for and against different types of fishes with different types of alleles. Also, because of the barrier, they are not able to mate with each other, and there are no mixing of genes from one side of the ocean and the other side. They are genetically isolated. As genetic drift occurs over time, their gene pools become different from each other. Thus, they evolve independently.
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Answer:
Carbohydrate.
Explanation:
Glycogen is a form of stored carbohydrate in animals.
