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3 years ago

6

At which stage of the scientific process would a scientist look at experimental data from other scientists to set up an experime

ntal study?
A.) evaluating results
B.) testing a hypothesis
C.) forming a hypothesis
D.) observing

1 answer:

hammer [34]3 years ago

7 0

I believe C would be the correct answer because that's the point when they would be gathering information from previous experiments.

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Describe one way that freshwater animals can compensate for ions lost during excretion of excess water

Anon25 [30]

They replace the lost ions by active uptake through active transport of ions from the surrounding waters. This is exhibited in freshwater fishes that actively take in these ions through the gills. Most of the ions involved in osmoregulation in freshwater are those of Na+ and Cl-.

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3 years ago

If the marginal propensity to save is 0.25, a $15 billion increase in government spending will lead to an increase in national i

Greeley [361]

Based on the marginal propensity to save, MPS , the national income will increase by a maximum of $20 billion.

<h3>What is marginal propensity to save?</h3>

Marginal propensity to save (MPS) is a measure of how savings will change, given a change in income.

Marginal propensity to save is related to marginal propensity to consume, MPC by the formula:

MPS + MPC = 1

Grom the given value of MPS,

MPC = 1 - 0.25

Therefore, MPC = 0.75

Also, the formula for calculating marginal propensity to consume is given as:

Marginal propensity, MPC = ΔC/ΔY

Where:

ΔC is a change in consumption
ΔY is a change in income

ΔY = ΔC/MPC

ΔY = $15 billion/0.75

ΔY = $20 billion

Therefore, the national income will increase by a maximum of $20 billion.

Learn more about marginal propensity to save at: brainly.com/question/18521055

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3 years ago

it takes light from the sun about three minutes to reach mercury how many hours does it take light from the sun to reach Neptune

Kazeer [188]

The time taken to reach the Neptune planet is 4.2 hours

<h3>What is the time taken?</h3>

We can see that the speed of light has the value of 6.7 * 10^8 miles per hour . We also know that the solar system is composed of the sun and the planets. The distance of the between the sun and mercury is 35,000,000 miles while the distance between the sun and Neptune is 2.8 x 10^9 miles.

This implies that the ratio of the distance from neptune to the sun and that of mercury to the sun is; 2.8 x 10^9 miles/3.5 * 10^7 miles hence Neptune is eight times farther from the sun than mercury.

The time taken for light to reach Neptune from the moon is;

Distance = 2.8 x 10^9 miles

Speed = 6.7 * 10^8

Time = 2.8 x 10^9 miles/6.7 * 10^8

= 4.2 hours

Learn more about speed of light:brainly.com/question/394103

#SPJ1

Missing parts;

Mercury is the closest planet to the Sun, with an average distance of 35,000,000

miles.

It takes light about 3 minutes to travel from the Sun to Mercury.

Neptune is the farthest, with an average distance of 2.8 x 10 to the power of 9 miles from the Sun.

How many times farther from the Sun is Neptune than Mercury?

How long does it take light to reach neptune?

6 0

2 years ago

Which eye structure is primarily responsible for making the adjustments required to focus on objects both near and far?.

lbvjy [14]

Answer:

The lens

It helps to focus on objects and light

5 0

2 years ago

All of the following events occur during normal meiosis except _______. A. two haploid gametes fuse to form a diploid cell B. on

lesya692 [45]

Answer:

A. two haploid gametes fuse to form a diploid cell

Explanation:

Meiosis is a type of cell division. When a parent cell with "2n" chromosomes enters the process of meiosis, four daughter cells each with "n" chromosomes are formed. This occurs since homologous chromosomes separate from each other during anaphase-I. However, meiosis does not include the fusion of two haploid cells. The fusion of two haploid cells mainly occurs during the process of fertilization during which a haploid male gamete and a haploid female gamete fuse to form a diploid zygote.

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3 years ago