Answer:
The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.
Explanation:
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An organism is defined as pathogenic if it can cause diseases in humans. The organisms that cause diseases' like whooping cough, influenza and diphtheria are this kind of pathogen.
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Answer:
Root hair cells are alive and therefore need energy, which is why root hair cells contain many mitochondria in them. Root hair cells don't contain chloroplasts. Chloroplasts are used by the plant to make food using light energy. Since the roots aren't exposed to any form of light, they have no need for chloroplasts.
<span>The reason why foods such as pineapples, pickles and tomatoes can be treated with temperatures less than 100 is because t</span>hese foods are highly acidic (pH<4.6) which provides a hurdle to microorganims.
Low-acid foods have pH values higher than 4.6, while a<span>cid foods have a pH of 4.6 or lower. They include fruits, pickles, sauerkraut, jams, jellies, marmalades, and fruit butters.</span>
Glycolysis, the Krebs cycle and oxidative phosphorylation are the pathways of cellular respiration.
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Pathway of cellular respiration</h3>
Glycolysis, the link reaction, the Krebs cycle and oxidative phosphorylation are the stages of glucose oxidation. Complete oxidation of one molecule of glucose results in the production of 38 molecules of ATP.
This process also results in the production of 38 molecules of water because the formation of phosphodiester bond between ADP and inorganic phosphate involves the splitting off of a molecule of water so we can conclude that glycolysis, the Krebs cycle and oxidative phosphorylation are the pathways of cellular respiration.
Learn more about respiration here: brainly.com/question/18169685
