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Nata [24]
3 years ago
10

All of these ___ help to block, trap or flush pathogens out of the body.

Biology
1 answer:
Licemer1 [7]3 years ago
6 0

Answer:

natural barriers

Explanation:

skin, mucous membrane, tears, earwax, muscus, stomach acid

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Which of the following best describes the movement of energy in an ecosystem
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Energy is started from the sun, with 100 percent of the energy given to plants. when the plants are eaten, only 10% of that energy is given to the animal, like a rabbit. When the rabbit is eaten by a larger predator, only 10% is given of the rabbits energy. This continues, so to find the amount of energy within a certain organism you would need to calculate 10% from each original source of energy

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Which type of stimulus is an allergen, such as pollen?
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<span>A. response to a stimulus</span>
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in a population of 512 butterflies, 128 have white spots on their wings. Assuming that the presence of white spots is a recessiv
Igoryamba

Answer:

0.5

Explanation:

let the alleles be W- no white spots w-white spots

ww butterflies have white spots

genotypic frequency of ww= number of butterflies with white spots/total number

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= 0.25

alleleic frequency of w= square root of genotypic frequency of ww

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5 0
3 years ago
What is an ion? Help
AleksandrR [38]

Answer:

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

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3 years ago
For frost to be on the grass in the morning, the water vapor in the air must ____
zhuklara [117]

Answer:

Condense and freeze

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During a warm day , the water from the ground gets evaporated into the air

During the evening,the temperature of the ground drops down as heat  is radiated from ground to the air continues

At a point called the <em>"dew point" </em>,the air in the moisture becomes so great that it can not hold more of it .The condensed air allows the dews to form on the surfaces that are away from the ground (that radiates heat) .grass and objects etc

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