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lapo4ka [179]
4 years ago
13

Which cells protect the body by engulfing invaders or producing antibodies?

Biology
2 answers:
lutik1710 [3]4 years ago
7 0
D. white blood cells ex: pus
bazaltina [42]4 years ago
4 0

Answer: d. white blood cells

Explanation:

White blood cells are the cells produced by the bone marrow cells of the animal body. These cells produce antibodies in the bodies on invasion of the body by a foreign antigen. These antibodies fight against these antigens of disease causing pathogens like bacteria, virus and fungi. Certain white cells are called as phagocytes as they engulf the foreign large particles or antigens.

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<span>DNA exists in a coiled form in order for it to take up a smaller volume in the cell so that is why the first thing is that it needs to be unwound by topoisomerase. Then each piece is made up of two strands that must be separated as they need to be copied separately, so next the helicase unzips the DNA. DNA polymerase needs to have something to build off so because DNA can be synthesized, the Primase needs to make an RNA "primer". DNA is then synthesized but because it cannot synthesize the whole chromosome in one piece, after DNA synthesis, the ligase must glue the shorter pieces together to make the entire chromosome. Correct Order 1. Topoisomerase unwinds the coiled DNA 2. Helicase unzips DNA to separate strands 3. Primase lays down short RNA strands 4. Polymerase synthesizes new DNA strands 5. The new strands are glued using ligase</span>
7 0
3 years ago
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Which activity combines the use of conduction and convection to transfer heat?
kaheart [24]
<h2>Answer:</h2>

The boiling of water in the iron pan is the activity in which both conduction and convention are used.

<h3>Explanation:</h3>

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Conduction is the movement of heat from the collision of the microscopic particles in the matter.

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In the water boiling activity, the pan is heated by the flame from taking the energy in the collision of atoms in the pan and the energy is transferred into the whole pan and eater molecules. This is conduction while in pan water movement from the bottom to top of pan is by convection.

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3 years ago
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My opinion is C. Sorry if this doesn't help you.
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Answer:

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Hope this helps!

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4 years ago
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