3. cell wall
The cell wall is a rigid supporting structure.
<span>Comparative embryology is the study which determines the organisms that have the same and almost identical embryo development.
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While, comparative morphology is the scientific study of organisms where their structures, physical entities and elements are identified to be similar or dissimilar. Using only simple basis of empirical observation, a scientist can detect whether two animals are of the same family or not.</span>
The group of chemical processes in organisms that maintain life is known as metabolism. The three primary functions of metabolism are: converting the energy in food into energy that can be used to power cellular functions.
It is convenient to divide metabolism into two groups: Molecules are broken down during catabolism to provide energy. All of the substances that the cells require are synthesised during anabolism. Metabolic processes include the chemical reactions that keep you alive. One example of metabolism is the rate at which you burn fat and consume calories. the constant anabolic and catabolic chemical and physical processes that occur in living things and their cells. Specific areas of the cell host metabolic events. The cytoplasm is where amino acid degradation and some phases of glycolysis, fatty acid synthesis, and glycogen synthesis take place. Within mitochondria, certain metabolic pathways are located at particular points.
Learn more about metabolism
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Answer:
The correct answer would be - high risk of developing CHD.
Explanation:
Every animal and humans need some cholesterol to regulate bodily functions such as creating hormones, vitamin d forming, cell membrane and many more. But if someone have too much cholesterol in his body, he must have developed a higher risk of coronary heart diseases or CHD.
The total cholesterol level under 200 mg/dL (milligrams per deciliter) is classified as normal for the adults. Reading between 200 to 239 mg/dL is considered as a borderline where is above 240 mg/dL is considered as high. Alejandro's reading falls under high cholesterol level so he has a higher risk of developing CHD.
Thus, the correct answer is - a higher risk of developing CHD.
A. an open circulatory system
Explanation: In an open circulatory system, the blood is not enclosed in the blood vessels, but is pumped into a cavity called a hemocoel
