BIOLOGY HIGH SCHOOL

Which of these properties changes if the size of an object changes?a. density
b. melting point
c. solubility
d. mass

Answers

Answer 1
Answer: im guessing c=solubilty because 

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Which of the following conversion factors would you use to change 18 meters to kilometers? A. 1000 m/1 km
B. 1 km/1000 m
C. 100 m/1 km
D. 1 km/100 m

Answers

In converting a number with the unit of meter into kilometer we must use the conversion factor 1 km per 1000 meters.This is because in 1 kilometer there are 1000 meters and then the unit to be converted is already in meter so we need to divide it for us to convert.

Before 1800, most peppered moths in England were light-colored. During the Industrial Revolution, soot and industrial wastes darkened tree trunks. Gradually, the light-colored moths became rare, and the dark-colored ones became abundant. What role did natural selection play? A. Natural selection created the variation in the population, and then acted accordingly.
B. Natural selection acted on the variation that was present in the population.
C. Natural selection acted indiscriminately on both color variations.

Answers

The correct answer of this question is option B. Natural selection acted on the variation that was present in the population. This adaptation was a result from the Industrial Revolution. The dark-colored moths have camouflaged more effectively than the light-colored ones.

Answer:

B. Natural selection acted on the variation that was present in the population

Explanation:

I had this question asked on a test and got a 5/5

What takes place when you inhale and exhale ?

Answers

When you inhale and exhale, you actually breathe. When you inhale, your intercostal muscles between ribs and diaphragm contract. This increases the space in chest cavity so your lungs can expand and the air enters the lungs. When you exhale, intercostal muscles and diaphragm relax reducing the space in the chest which leads to removing the air from the lungs.

Most energy enters ecosystems in the form of sunlight.true or false

Answers

True!
Most energy enters ecosystems in the form of sunlight. Plants convert solar energy to chemical energy in the form of sugar. This energy will leave the ecosystem as heat energy. 

Answer:

The answer is sunlight

Explanation:

The burrowing owl is found in dry, open areas such as grasslands, prairies, savannas, deserts, farmlands, golf courses, and other urban areas throughout most of western United States and Florida, Central America, and most of South America. It makes its home in burrows of other animals and primarily eats insects and small rodents. As humans build more cities, nearby burrowing owl habitats change due to destruction of burrows and loss of prey. Which is the least likely outcome of the habitat changes that are described?AThe niche of the burrowing owl may change as it adapts to the changes.
BThe niche of the burrowing owl may change as it moves to a new habitat.
CThe population of the burrowing owl may be reduced or even become extinct.
DThe population of the burrowing owl may increase in its new surroundings.

Answers

The correct answer to the question that is being presented above would be letter D. The population of the burrowing owl may increase in its new surroundings. This is the answer because all the other choices are the most likely to happen compared to this sentence.

Answer:

The answer is D

Explanation:

Edge 2021

Describe the benefits of physical activity for three different body systems

Answers

respiratory systemas your activity level increases your lungs begin to work more efficiently, pulling in larger amounts of air and increasing the amount of oxygen delivered to your bodycardiovascular systemregular physical activity strengthens the hear muscle so that it pumps blood more efficiently.
musculoskeletal systemphysical activity strengthens muscles and bones, reducing your risk of developing fragile bones as you age.
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Which phrase best describes scientific theories?
What characteristics separate algae from a) protozoans and b) plants?
Enzymes are sensitive to pH and temperature. If an enzyme's environment is too hot, the enzyme cannot -develop DNA, so it can move closer to a substrate., transform into a sugar that causes a reaction in a substrate. bind to a substrate and cause a reaction in the substrate., stimulate other molecules to become substrates.