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
Strike441 [17]
3 years ago
9

Before scientists learned how to make artificial fertilizers, what key process limited the amount of nitrates available to plant

s in most ecosystems?
Biology
1 answer:
zavuch27 [327]3 years ago
6 0
I believe rottening would be the answer. Rotting, dead plants and animal feaces make great fertilizers. 
You might be interested in
Why is reproductive isolation required for speciation to occur?
Anarel [89]

Answer:

a

Explanation:

If populations can interbreed, they are considered one species.

4 0
3 years ago
I’ll mark brainliest <br> how do organisms with many cell types develop from a single cell
Rashid [163]

Answer:

A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.

5 0
3 years ago
What are the major factors that influence the rock cycle and changes in the rock?
mylen [45]
Weathering and Erosion.
3 0
3 years ago
A patient has taken levodopa [Dopar] for Parkinson's disease for 2 weeks but reports no improvement in the symptoms. Which respo
Elan Coil [88]

Answer:

Option-D

Explanation:

Parkinson's diseases are a neural disorder which affects the movement of the human body. The disease is caused by the low production or no production of dopamine by the neurons which thus interfere with the impulse transfer and thus movement.

In the given question, the patient with Parkinson's disease is provided with levodopa but no improvement is observed therefore the prescriber must change the drug regimen, for example, the levodopa should be given in combination with carbidopa. These medications enter the blood-brain barrier and get converted to the dopamine.

Thus, Option-D is the correct answer.

8 0
3 years ago
If you were a scientist examining the DNA sequence of two unknown organisms that you hypothesize share a common ancestor, what e
8_murik_8 [283]
You will expect to find some of the same aspects of there sons or daughters or even you because if they have you dna they must have something you have or there child Hope this helped
7 0
3 years ago
Other questions:
  • Which of these correctly explains differences between steroids and enzymes
    13·1 answer
  • Two sicentist do not agree o which type of grocery bag is better is better for the environment
    13·2 answers
  • Based on your investigation, what challenges do scientists face when classifying a new fossil?
    5·1 answer
  • What type of amino acids would you expect to see in the DNA-binding regions of such proteins?
    10·1 answer
  • Arrange the stages of the adaptive management approach in their correct order.
    8·2 answers
  • How does interphase prepare cells for mitosis
    15·2 answers
  • Why gene flow isn’t the cause of antibiotic resistance
    5·1 answer
  • The main factors that determine aquatic biomes include
    7·2 answers
  • When is the Doppler Effect perceived by a person?
    9·1 answer
  • which layer of the dermis contains the capillaries, lymphatic vessels, and sensory nerve fibers that supply the epidermis?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!