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The answer is D) </span><span>amniotic fluid.
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One of them is Vertebrates which are the animals that have a backbone like mammals, birds, and amphibians.
The other one is a invertebrates which are animals that don't have a backbone, for example insects do not have a backbone and also some marine animals like the squid.
I hope this helped :)
Vegetable oil. Oil isn’t soluble in water, if layered properly it will float on top of the water in a beaker as you so mentioned. This is due to surface tension and density and a slew of other things I’m not intelligent enough to describe.
The given statement is true.
Handwashing with normal soap removes all normal microbiota from the skin. Disinfectants are used to remove pathogenic organisms from inanimate objects. Antiseptics are used on the skin. They are a milder version of disinfectants.
The normal microbiota of the skin tends to inhibit transient-microbe colonization by producing antimicrobial substances and outcompeting other microbes that land on the surface of the skin. This helps to protect the skin from pathogenic infection.
Washing hands prevents major harmful microorganisms from entering our bodies. It is always advised to wash hands before and after a meal or when we come home from any public place.
Learn more about microbiota here: brainly.com/question/28203934
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Precipitation is the correct answer
