BIOLOGY HIGH SCHOOL

This is the wave-like motion of muscular contractions that propels food thoughout the digestive tract. metabolism peristalsis digestion absorption

Answers

Answer 1
Answer: It would be peristalsis. Peristalsis is a wave-like movement caused by muscle contractions in both the esophagus and the intestines.

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A gardener finds that someone in the household has added crushed eggshells to the compost heap. Which of the following accurately represents the effect the shells will have on the compost?A. The shells must be removed to preserve the organic nature of the compost heapB. The shells will enrich the compost as an additional organic supplementC. The shells will have no effect for better or worseD. The shells will kill the microfauna in the compost heap

A developer wants to turn part of a local woodlot into a new housing development. A vernal pool exists in the part of the woodlot marked for development. How might the developer’s plan affect the salamanders that live in the woodlot? Student Answer:
A The salamanders would have no water to drink.
B The salamanders would have no place to mate and lay their eggs.
The development would have no effect on the salamander population.
C The salamanders would not survive at all if the developer built houses in the woodlot.
I know its B but why would it be B?

Answers

The developer's plan would affect the salamanders that live in the woodlot by taking away their vernal pool, the lack of a vernal pool would mean that the salamanders would have no place to mate and lay their eggs. This would result in a drastic reduction of salamanders in the area. 

Which term best describes the temperature and weather conditions of an organism’s environment? biotic factors abiotic factors natural resources natural habitat

Answers

Explanation:

Abiotic factor is the correct one.

Answer:

Abiotic factors.

Explanation:

Got it right on Edge :]

Not all members of a species are the same. Every species exhibit

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Every species exhibits variations based on various genes being activated at various times. An example with humans can be eye color or hair color. What species means is that all members of a species can procreate with healthy, capable of procreating progeny, but anything else is just a variation.

Claude bernards first recognized

Answers

The correct answer is Claude Bernard first recognised stomata opening and closeing to mantain homeostasis.

Peppered moths come in two colors, black and white. What did Kettlewell show, with regard to peppered moth populations and tree coloring? (Recall that England at the time was heated mainly by coal in urban areas.)

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Peppered moth color variation is a good example of natural selection. In natural selection, genotype variations that will increase the chance of survival and reproduction of some organism are preserved and will be inherited.During the Industrial revolution, due to pollution, trees become darker in the urban area. Light-colored moths were, thus, easy prey. The dark-colored moths were able to camouflage on dark trees and avoid predators. The phenomenon is known as industrial melanism. So, in polluted urban areas, the number of dark-colored peppered moths increased. In the clean environment, were much effective in hiding from predators and they outnumbered the dark-colored moths. 

Which of these forces exist between earth and moon?gravitational force
electromagnetic force
weak nuclear force
strong nuclear force

Answers

Answer:

The that exist between earth and moon is 1.97* 10^(20)\ N

Explanation:

Gravitational force acts between earth and moon. It is given by :

F=G(m_1m_2)/(r^2)

Where

m₁ = mass of earth

m₂ = mass of moon

G = constant

r = distance between earth and moon

By putting the value of above parameters we ca calculated the value of gravitational force i.e.

F=6.67* 10^(-11)* (5.97* 10^(24)\ kg* 7.34* 10^(22)\ kg)/((384400* 10^3\ m)^2)

F=1.97* 10^(20)\ N

Hence, the force that exists between earth and moon is gravitational force and it is equal to 1.97* 10^(20)\ Newton
Between Earth and Moon there is a gravitational force that exists.
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What is one effect of methane gas being released into Earth’s atmosphere? *A decrease in the heat trapped in the atmosphereAn increase in the amount of greenhouse gases in the atmosphereA decrease in the amount of air pollutionA cooling effect on Earth’s climate2. Evaporation occurs when a ____ changes into a ____. *Solid; liquidGas; liquidLiquid; gasSolid; gas3. What is the definition of anaerobic? *Producing oxygenProducing methaneContaining bacteriaLacking oxygen4. What is the purpose of regularly mixing a compost pile? *To decrease the temperature in the compost pileTo reduce the amount of oxygen in the compost pileTo prevent the production of methane in the compost pileAll of the above
The sequence of a chromosome can be represented by ABCD@EFGH, where the @ symbol represents the centromere. Which of the following chromosomes represents an inversion in this chromosome?