1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
professor190 [17]
3 years ago
11

Which of the following describes a negative feedback loop?

Biology
2 answers:
wolverine [178]3 years ago
5 0
I believe the answer is b
sveta [45]3 years ago
5 0

ANSWER is A

When blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.

Explanation:

You might be interested in
Arrange the events in the order they would have occurred according to the theory of endosymbiosis
yanalaym [24]

Answer:

We need the events to be able to put them in order. :\

Explanation:

5 0
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
1 year ago
A biologist is studying the possible role of earthworms on the fertility of farm soils. As part of this research, the number of
dimaraw [331]

Answer:

Taking more samples from different parts of an acre.

Explanation:

Validity and accuracy of the data is crucial for any serious research. In this particular case, the most accurate data would be obtained if earthworms would be counted on the whole acre. Of course, this would consume lot of time, people, money etc. That's why methods for estimation are used. Estimation best works with large number of samples. Since one acre equals over 4000 square meters, taking only five samples from such a big area is simply not enough for obtaining valid data.

One of the possible ways to improve estimation is to take more samples per acre while avoiding taking adjacent samples because it could be possible that number of earthworms in one part of an acre is increased (or decreased) for any reason, which would lead us to wrong conclusion.

8 0
3 years ago
Why are hooves more advantageous for horses in the modern era? (1 point)
Nesterboy [21]

Answer:

O Hooves are better equipped for environments with plains.

Explanation:

I took the test.

Also, hooves help horses run faster.

4 0
2 years ago
before buying soups, bread and frozen meals, comparing sodium amounts and selecting foods with the lowest numbers is helpful to
balandron [24]
Before buying soups, bread and frozen meals, comparing sodium amounts and selecting foods with the lowest numbers is helpful to your diet.
-true

5 0
3 years ago
Other questions:
  • Chinchillas
    11·1 answer
  • The doctor also ordered measurement of wally's na+ and k+ levels. how is the adrenal gland related to these?
    10·1 answer
  • The Gulf of California is located on the Tropic of Cancer. At what position of Earth, will the sun be exactly overhead at the Gu
    14·2 answers
  • Chewing a bite of bread mixes it with saliva and facilitates its chemical breakdown. This is most likely due to the fact that __
    6·1 answer
  • Explain why the individual who is a carrier for hbv is considered a threat to public health.
    5·1 answer
  • A pathologist is a person who works in the field of pathology. What would a pathologist most likely do?
    8·2 answers
  • Grass necessary to support this ecosystem needs 10 acres it grow but this field has been reduced to 5 acres because a developer
    14·2 answers
  • What are areobial habitats ?
    9·1 answer
  • According to the principle of independent assortment, there is a _____ percent chance that any tall pea plant will produce eithe
    7·1 answer
  • The ______ partially forms the posterior roof of the diencephalon and covers the third ventricle.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!