What process lead to biological nitrogen fixation?

Answers

Answer 1
The Rhizobium or Bradyrhizobium bacteria colonize the host plant's root system and cause the roots to form nodules to house the bacteria. The bacteria then begin to fix the nitrogen required by the plant.

Related Questions

are the cells above plant or animal?

Answers

look like animal to me

List the features of reptiles that indicate that they are higher vertebrates than amphibians.

Answers

Answer: Top 5 Characteristics of Reptiles. Reptiles Are Four-Legged Vertebrate Animals. Most Reptiles Lay Eggs. The Skin of Reptiles Is Covered With Scales (or Scutes) Reptiles Have Cold-Blooded Metabolisms. Reptiles Breathe With the Aid of Lungs.

Explanation:

Which water conservation strategy is being used when a household uses eco-friendly cleaning products?

A:Reusing and recycling
B: limiting consumption
C: pollution prevention
D: eliminating losses
Need help ASAP

Answers

Answer:

Explanation:

Answer:

C: pollution prevention

Explanation:

Just took the test

Please answer will give brainliest.

Answers

Answer: the box will not move because balanced forces are acting on it

Explanation: there is a box in the middle and on either side is the same weight box pushing against either side of the initial box in the center with an equal force of 10N!

I hope I helped and I’m sorry if it’s wrong!

You now find new cells which contains 200 mM CaCl2 and 15 mM glucose. The cell membrane is permeable to Ca ions, impermeable to Cl- ions, impermeable to Na ions and impermeable to glucose. You transfer these cells into a solution which has 140 mM (NaCl) and 150 mM glucose. What happens to the cells after the solution and cell have come to equilibrium

Answers

Answer:

The correct answer would be - ions will move from solution 1 to solution 2 so the cell will shrink.

Explanation:

The concentration of CaCl2- = 200mM

CaCl2 dissociates in the three different ions in a solution and each has the same osmolarity

The concentration of glucose = 15 mM

So, the osmolarity of solution 1 would be:

3 × 200 + 15= 615 mM

Similarly, the osmolarity of the second solution would be

The concentration of NaCl = 140 mM

The concentration of glucose = 150 mM

NaCl dissociates in the two different ions in a solution and each has the same osmolarity

140×2+ 150= 430 mM

The solution has more concentration of ions than solution two so the movement of the calcium ion of the CaCl2- would be possible only and therefore, the cell in solution 1 will shrink.

Element
Compound
Mixture
Organic compound

Answers

ANSWER

Mixture

Explanation: the air is composed of nitrogen and oxygen

Diffusion in membrane cell

Answers

Diffusion is one form of passive transport that doesn't require the expenditure of cellular energy. A molecule can diffuse passively through the cell membrane if it's lipid-soluble, uncharged, and very small, or if a carrier molecule can assist it. ... The assisted process is known as facilitated diffusion.

Got this off google but still hope it helps :)

Answer:

when small molecules pass through the lipid bilayer of a cell membrane simple passive diffusion occurs

Explanation:

Diffusion is one form of passive transport that doesn't require the expenditure of cellular energy. A molecule can diffuse passively through the cell membrane if it's lipid-soluble, uncharged, and very small, or if a carrier molecule can assist it. ... The assisted process is known as facilitated diffusion.

at what temperature are are particles more densely packed?

cold
warm
hot​

Answers

Hottttttttttttttttttttt

What invention allowed scientists to study cells for the first time? A- telescope B- scanning electron microscope (SEM) C- light microscope D- camera​

Answers

C. light microscope

The invention allowed scientists to study cells for the first time - C- light microscope.

The Discovery of the Cell The invention of the microscope in the 1600s enabled researchers to see cells for the first time

Robert Hooke named the empty chambers he observed in cork "cells."Anton van Leeuwenhoek was the first to observe living microorganisms.The discovery of the cell was made possible through the invention of the light microscope.

Thus, The invention allowed scientists to study cells for the first time - C- light microscope.

Learn more about:

https://brainly.com/question/1510221

Yo yo yo I need help with this question can someone smart answer this and the picture of the question is located above. Thank you:)

Answers

6 images:

1 2
3 4
5 6

Interphase: image # 4
Prophase: image #6
Metaphase: #1
Anaphase: #3
Telophase: #2
Cytokinesis: #5

5. On vacation at a lake, Saira's mom sees an interesting-looking rock formation. Saira just learned
about rocks in geology class and tells her mom that the formation is made of gneiss, a type of
metamorphic rock. How did this metamorphic rock form?

Answers

Answer:it was heated and under pressure

Explanation:

Metamorphic rocks are formed from existing rocks, under high temperature and high pressure. This process is called metamorphism.

What is a metamorphic rock?

Metamorphic rocks are those rocks that are formed from different kinds of rock like igneous, sedimentary, or gneiss rock under high pressure and intense temperature. They are rigid in nature.

In the formation of metamorphic rocks, firstly existing rock is broken down into small particles by physical, chemical, or biological agents. The process of breaking down rock is called weathering.  Then erosion and transportation of these particles take place by the wind, water, or any biological agent.

The next step involves compaction after sedimentation. Thus, metamorphic rocks are formed from existing rocks.

Learn more about metamorphic rocks, here:

https://brainly.com/question/2615484

#SPJ5

Which of the following is a true statement about the sex of the newborn "male" child.
The father determined the sex which is XX
The mother determined the sex which is XX
The father determines the sex which is XY
ООО
The mother determines the sex which is XY
None of the above are true

Answers

Answer:a

Explanation:

(PLEASE HELP I WILL GIVE YOU 27 POINTS) Figure out how to make the diver sink.Figure out how to make the diver float again.Record your methods for changing the location of the diver in the space below.

this is for my science class please help me

Answers

Answer:

I have no idea

Explanation:

For how to make a diver sink just stand still on the water right?

A polar molecule has

Answers

Answer:

A net dipole.

Explanation:

A polar molecule has a net dipole as a result of the opposing charges from polar bonds being arranged asymmterically.

Question 7 (3 points)
(01.05 MC)
The distance time graphs for two objects are shown below:
Object A
Object B
Distance
(miles)
Distance
(miles)
Time
(hours)
Time
(hours)
Which statement is true? (3 points)
Ob
Both objects move at variable speeds.
Both objects move at a constant speed.
Object A is moving at constant speed but Object B is moving at variable speed.
Object A is moving at variable speed but Object B is moving at constant speed.
Od

Answers

Answer:

object b is moving at constant speed and object a is moving at variable speed

Meiosis occurs only in the _____cells

Answers

Answer:

reproductive cells

Explanation:

Meiosis only occurs in reproductive cells

hope it helps!

Answer:

Meiosis occurs only in the reproductive cells.

hope it helps!

4. How to determine fats and oils in simple method?
5. Briefly describe the properties of triglycerides. (4 points)
6. What is the effect if eats food rich with saturated fats and
cholesterol? (3 points)
7. List 3 roles of triglycerides.​

Answers

Answer:

5.Triglycerides are a type of fat. They are the most common type of fat in your body. They come from foods, especially butter, oils, and other fats you eat. ... Your body changes these extra calories into triglycerides and stores them in fat cells. When your body needs energy, it releases the triglycerides.

6.High LDL cholesterol increases your risk for heart disease and stroke. Weight gain. Many high-fat foods such as pizza, baked goods, and fried foods have a lot of saturated fat.

7.provide energy , primary form of energy storage , insulate and protect

Explanation:

The ans for the fourth question-

To a  food sample (solution), add 2cm^3 of ethanol, then add 2cm^3 of distilled water.The test tube should then be lightly shaken

If the result is positive (If a lipid is present), a cloudy emulsion will form in the test tube.

Both the tropical rainforest in the tropical savanna experience or contain what

Answers

Answer: I believe they both experience heavy rainfall. Although the tropical savanna has a wet season, it also has a dry season.

Hope I could help.

HELP ME NOW PLEASE
IM BEING TIMED

Isotopes of the same element will have a different number of neutrons, but the same number of protons.



Please select the best answer from the choices provided


T

F

Answers

Answer:

true

Explanation:

Atoms of the same element that contain the same number of protons, but different numbers of neutrons, are isotopes.

Answer:

TRUE!!!!!

Explanation:

Poggers

Which of these layers is the deepest?

Answers

the deepest layer: horizon

Answer:

the answer is B. C horizon

Explanation:

AP3X

What are 5 different types of heterotrophs, what do they eat, and give an example of an organism for each category.

Answers

Answer:

Five different types of heterotrophs are carnivores, herbivores, omnivores, scavengers, and detritivores.

Carnivores eat the meat of other animals. Example: Bear

Herbivores eat vegetation. Example: Deer

Omnivores eat a combination of both meat and vegetation. Example: Humans

Scavengers eat things left behind by carnivores and herbivores. Example: Raccoon

Detritivores eat small bits of organic matter, such as soil. Example: Worms

Edit: If you'd rather substitute one of those for a decomposer, Decomposers break down dead or decaying organisms. Example: Mushroom, or fungi.

Which of the following is an essential amino acid?

Answers

Answer:

The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Why postharvest physiology is important to maintain sustainable food supply on this planet. Please give named examples and discuss various biological factors associated with produce deterioration after harvest

Answers

Answer:

Postharvest physiology plays a fundamental role in extending the shelf-life and quality of plant products. An example of postharvest physiology methodologies is by reducing the temperature to improve shelf-life before consumption

Explanation:

Postharvest physiology refers to the methodologies used for extending shelf-life and quality, thus being a critical issue in food systems. Postharvest approaches include chemical treatments, temperature reduction, cleaning and disinfection methods, etc. Crop varieties are genetically selected in order to maintain nutritional qualities of stored seeds for a long time after harvest. These seeds are also controlled during storage by using postharvest handling practices (e.g., chemical and enzyme inhibitors that extend shelf life).

which best describes what can happen as a result of radiation 

Answers

Explanation:

the answer is D..... radiation is the heat energy from the sun

Answer:

A car's inside temperature rises to over 100 degrees on a sunny day.

Explanation:

what are the three components of the cell theory

Answers

1. All living things are composed of cells
2. Cells are the basic unit of structure and function in living things
3. All cells are produced from other cells

Answer: Sample Response.

Explanation: The first component of the cell theory says that all living things are made of cells. The second component of the cell theory states that cells are the basic structure and function of living things. The last component of the cell theory says that cells come from other cells.

15. Explain how it would be possible to have a change in a single base of DNA, but have the protein NOT change and be functional.

Answers

Answer:

Nonsense mutation. A nonsense mutation is also a change in one DNA base pair. Instead of substituting one amino acid for another, however, the altered DNA sequence prematurely signals the cell to stop building a protein. This type of mutation results in a shortened protein that may function improperly or not at all.Sep 21, 2020

Explanation:

List three differences between light dependent and light-independent reactions of photosynthesis

Answers

the person up there sounds reasonable go with that one :) ^

What do you notice about the size of the two resulting cells (part of a gizmo)

Answers

Well, is their some sort of picture I could use?

Answer :Females generally produce a few but large gametes, whereas males produce large numbers of much smaller gametes.

Explanation:

The neuromuscular junction (muscle contraction)
Label the picture?

Answers

Answer: not possible

Explanation: no picture

What process is carried out by RNA to produce a protein?​

Answers

Answer:

During transcription, DNA is used as a template to make a molecule of messenger RNA. The molecule of mRNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. During translation, the genetic code in mRNA is read and used to make a protein

GOTCHU

Answer:

Process during which a DNA sequence of a gene is copied to make an RNA molecule

Explanation:

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