Answer:
Ribosomes are macromolecular machines, found within all living cells, that perform biological protein synthesis. Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide chains.
Explanation:
Answer:
Plants and algae make their own food and are called producers. Level 2: Herbivores eat plants and are called primary consumers. Level 3: Carnivores that eat herbivores are called secondary consumers. Level 4: Carnivores that eat other carnivores are called tertiary consumers.
Explanation:
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The difference between active and passive immunity is that your body produces antibodies in active immunity and in passive immunity, the antibodies are made outside the body. (D)
What is active and passive immunity?
Active immunity is a type of immunity that occurs when the immune system of a person is responsible for protecting them from a pathogen or from an infection.
Passive immunity is a type of immunity that involves the introduction of antibodies from another person or from outside the body of a person.
Antibodies are produced by an individual in active immunity but in passive immunity, antibodies are being transferred to an individual to help boost their immune system in fighting diseases.
Thus, the difference between active and passive immunity is that your body produces antibodies in active immunity and in passive immunity, the antibodies are made outside the body. (D)
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The right answer is vein (it contains blood and has valves).
The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.
Yes. You could do this by adding solvents to break down any cell walls, centrifuge to separate the DNA, if you haven't got much then upscale with PCR, gel electrophoresis could be used to detect the DNA, and Sanger sequencing to find the sequence.
