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
SIZIF [17.4K]
2 years ago
8

which of the following statement is true about the nutrient cycle? A. plants fix nitrate into atmospheric nitrogen. B. all the n

itrogen obtained by animals come from plants. C. nitrogen is consumed by bacteria and removed the soil. D. nitrogen fixing bacteria reduce the total amount of available nitrogen in the nitrogen cycle.​
Biology
1 answer:
bija089 [108]2 years ago
7 0

Answer: B. all the nitrogen obtained by animals come from plants.

Explanation:

Animals are unable to use inorganic bacteria until plants absorb it and then animals get it from the plants so in effect, all the nitrogen obtained by animals comes from plants.

Plants absorb nitrogen in the form of Nitrates which were fixed by bacteria from Nitrites which were further fixed from Ammonium which was fixed from atmospheric Nitrogen all by bacteria.

You might be interested in
A healthy way to gain weight would be to simply add more calories to your diet. Group of answer choices
marissa [1.9K]

<u>Answer</u>:

A healthy way to gain weight would be to simply add more calories to your diet is a <u>TRUE</u> statement.

<u>Explanation</u>:

The number of "calories" that an individual consumes and burns daily plays an important role in determining his/her weight. A person who consumes more calories than he burns daily could become overweight whereas if a person is consuming fewer calories than what he burns could cause him to lose weight.

The best way to gain weight is to "add more calories" to one's diet while also keeping in mind the number of calories being burnt daily. The newly added calories should sum up greater than the total calories burnt regularly.

Hence, the statement about adding calories in the diet to gain weight is true.

7 0
3 years ago
In 1985 a biologist counted 750 pine trees in a 250 hectare forest. Using similar counting techniques, the biologist counted 1,2
Alisiya [41]

Answer:

Suppose that we have a given function f(x)

The average rate of change of the function between two values x₁ and x₂ is given by:

r = \frac{f(x_2) - f(x_1)}{x_2 - x_1}

a) We want to find the average (rate) of change on the size of population from 1985 to 1995.

We have that:

f(1985) = 750

f(1995) = 1500

Then we have:

r = \frac{1500 - 750}{1995 - 1985}  = 750/10 = 75

This means that the population of trees increases, in average, at a rate of 75 trees per year.

b) What is the density of trees each year that they were counted?

This will be equal to the quotient between the number of trees and the area.

1985: number of trees = 750 pines

         area = 250 ha

Then the density is:

D(1985) = (750 pines)/(250 ha) = 3 pines/ha

So 1985, there were 3 pines per hectare.

1990: number of trees = 1250 pines

         area = 250 ha

Then the density is:

D(1990) = (1250 pines)/(250 ha) = 5 pines/ha

1995: number of trees = 1500 pines

         area = 250 ha

The density is:

D(1995) = (1500 pines)/(250 ha) = 6 pines/ha

3) now we want to get the average change between 1985 and 1995 in the density, this will be:

r = \frac{D(1995) - D(1885)}{1995 - 1985}  = \frac{6 pines/ha - 3pines/ha}{10}  = 0.3 pines/ha

So, on average, each year the number of pines per hectare increases by 0.3

7 0
3 years ago
How is the small intestine adapted for the absorption of nutrients?
Gelneren [198K]
The small intestine has cilia to absorb nutrients and reabsorb water
6 0
2 years ago
How does the cardiovascular system helps the body get rid of carbon dioxide???
dem82 [27]
Http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0072434/ 

There is a website with some info. Hope it helps! :)


6 0
3 years ago
The two species of snakes, the Emerald Tree Boa and the Boa Constrictor, belong to the same genus; however, the former is tree d
vlada-n [284]
B. Sympatric evolution. is responsible to this. It's the process of evolving species from one shared ancestor in the same geographic region.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Where did the following drugs originate from?
    5·1 answer
  • The correct sequential path of a normal action potential in the heart is:
    6·1 answer
  • What immediate safety precautions would you take if a tsunami happened?
    6·1 answer
  • Which of the following situations or phrases most accurately describes the citric acid cycle?
    11·1 answer
  • Which of these is a way the immune system works with other body systems?
    5·2 answers
  • Why are enzymes considered catalysts?
    7·2 answers
  • Does active transport involve water
    8·1 answer
  • Como se organizan las celulas para formar diversas estructuras en los seres vivos
    9·1 answer
  • Please help <br><br><br><br><br><br><br><br><br>help help​
    11·1 answer
  • Is used in all steps of protein synthesis and carries the genetic information of many viruses.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!