23. Which of the following explains nitrogen fixation. *

Answers

Answer 1

Answer:

Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a nature or an industrial mean to a form of nitrogen such as ammonia.


Related Questions

Breaks down dead matter that can then be recycled through the ecosystem.

Answers

Answer: Decomposers

Explanation:

Decomposers are organisms that consume dead organisms and other organic waste. They recycle materials from the dead organisms and waste back into the ecosystem. ... The remains of dead plants are consumed by organisms called detritivores.

application of genetics in to legal applications

Answers

Answer:

i cant understand your question define briefly

Explanation:

Genetics are used in legal, criminal cases in order to either prove the guilt or innocence of a particular person. DNA is left at crime scenes that can then be found and tested against people. Genetics might also be used in order to help prove an insanity plea (for example, if the person has a family history of disorders. That's something that can be found with DNA).

What did Adam say when he saw Eve

Answers

The man said, “This is now bone of my bones, and flesh of my flesh; she shall be called woman, because she was taken out of man.”

1. Which of the following things is common to all living organisms? it for a test so I need it quick!

Answers

Answer:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

Researchers propose a model to explain variation in phytoplankton cell sizes in a marine environment. They base their model on the idea that smaller cells absorb nutrients more efficiently. The researchers predict that the mean diameter of phytoplankton cells will change by 50 micrometers for every 5-kilometer increase in distance from the shore because of a gradual decrease in nutrient availability. To test their model, the researchers determine that the phytoplankton cells found closest to shore have a mean diameter of 900 micrometers. Based on the model, what will be the mean diameter of the phytoplankton cells that are found 25 kilometers from shore?

Answers

The mean diameter of  phytoplankton cell is 650 micrometers at a distance of 25 kilometers from the sea shore.

The mean diameter of  phytoplankton cell is 650 micrometers because at every 5 kilometers, decrease occur in the diameter of phytoplankton cell about 50 micrometers and we know that the the diameter of phytoplankton cell is 900 micrometers so for 25 kilometers there is 250 micrometers decrease occur in the diameter of phytoplankton cell.

So this 250 micrometers are substracted from 900 micrometers we get 650 micrometers. So we can say that the mean diameter of  phytoplankton cell is 650 micrometers at 25 kilometers distance from the sea shore.

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Which cell type undergoes terminal differentiation?
A-epithelial cells
B-stem cells
C-heart cells
D-hair cells

Answers

Stem cells are the cell type that undergoes terminal differentiation.

STEM CELLS:

Stem cells are cells in animals that are capable of differentiating into any cell type.

Differentiation of a cell implies that the cell becomes more specific in its function.

Stem cells undergo mitotic division to produce one daughter cell that is a stem cell and another daughter cell that has differentiated.

Stem cells undergo terminal differentiation into specific cell types such as epithelial cells, muscle cells, heart cells, hair cells, blood cells etc.

Therefore, stem cells are the cell type that undergoes terminal differentiation.

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Explain the need for a reference point when describing the direction of motion

Answers

Answer:

It is important as it tells if the object is stationary or in motion

Explanation:

Which is an example of competition within a species?
O A. a pack of hungry wolves hunting prey
B. a cougar showing her cub how to hunt
Oc male elk fighting in a display of dominance
OD. plants in a dense forest struggling for sunlight

Answers

Answer: A
Explanation: they are hungry so they are going to fight over their food

Things of the same species have similar morphology and can ____

Answers

Things of the same species have similar morphology and can INTERBREED

Which was a consequence of the Haymarket Square Riot?

eroded support for the Knights of Labor
boosted support for the Knights of Labor
eroded support for the American Federation of Labor
boosted support for the American Federation of Labor

Answers

Answer: A. eroded support for the Knights of Labor

Explanation: Trust me!

Answer:  eroded support for the Knights of Labor

Explanation:

I got it right on the test :)

How are soil and plant taxonomy the same

Answers

They are both used to benefits plants growth process.

Water fleas (Cladocera) are small freshwater crustaceans. They are filter feeders can are about 3-5mm long. The outer carapace of a water flea is transparent so the internal organs can be observed. Caffeine raises the heart rate of humans. Hanna predicts caffeine will have the same effect on other organisms. She uses the water flea as her test subject in an experiment. Hanna introduces varying amounts of caffeine to water flea populations. Using a microscope, she measures the heart rate in beats per second of sample water fleas. She records the data in a table. As the concentration of caffeine increases, Hanna observes the water flea heart rate also increases. What is the hypothesis in Hanna’s experiment? A) Caffeine raises the heart rate of humans. B) Water fleas prefer caffeine over plain water. C) Caffeine increase the heart rate of the water flea. Eliminate D) The effects of caffeine are the same on all organisms.

Answers

Answer:

The Answer is C.

Explanation:

sorry i took awhile

The hypothesis is the part of the scientific method that is the supposition based on some observed data. In Hanna's experiment, "caffeine increase the heart rate of the water flea" is the hypothesis. Thus, option C is correct.

What is a hypothesis?

The hypothesis has been defined as the conjecture that is proposed in a scientific method and is based on the speculations from the observed facts and information. It is proposed to perform the experiment and reach the conclusion of the reliability.

They are testable and are performed through the experimental design that includes the experimental and control group so that the collected evidence can be analyzed and proved to be true. In Hanna's experiment, the effect of caffeine on the heart rate of fleas is a hypothesis.

It is a hypothesis as it is based on the observed fact that caffeine increases the human heart rate. The caffeine acted as the independent variable and the heartbeat was the dependent variable that showed that water fleas have increased heartbeat if given caffeine.

Therefore, option C. caffeine increases heartbeat is the hypothesis.

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SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertilizer to see if it will help plants produce more flowers. He plants two plants of the same size in separate containers with the same amount of potting soil. The places one plant in a sunny window and waters it every day giving it fertilizer each day. He places the other plant on a shelf in a closet and waters it every day but does not give it any fertilizer. The plant in the sunny window ended up producing many more flowers than did the plant in the closet. Should SpongeBob conclude that giving Flower Power fertilizer to plants will cause the plant to produce more flowers

Answers

Answer:

No

Explanation:

It would be wrong for SpongeBob to conclude that giving flower power fertilizer helps the plant to produce more flowers based on the experimental design.

There are fundamental flaws in the experimental design that could make the conclusion to be wrong:

The two plants were not subjected to the same conditionsThe sample size is too small

In order to investigate if the flower power fertilizer has the capacity to help the plant to produce more flowers, the two plants used should have been subjected to the same conditions barring only the fertilization application. Whatever difference that is observed in the number of flowers produced can then be attributed to the fertilizer.

Also, the number of plants for each group (with and without fertilizer) is too small to arrive at a reliable conclusion. In scientific investigations, replicating measurements increases the statistical power of the resulting data and raises the reliability of the conclusion.

Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie's Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1 cm longer.
A. Independent Variable=
B. Dependent Variable=
C. Control=

Answers

Answer:

independent: fish tanks

dependent: goldfish

control can he anything unchanged: the water, fish food, temperature...

The variables in the study are the independent variable is fish tank, dependent variable is goldfish, and control is the water, fish food, and temperature.

What are experimental variables and control?

The experimental variables can usually one or several of the sample attribute categories which are used in study. It describes all the factors that differ between the test and the control samples in the study, which we are investigating. Example of experimental variable is disease.

The independent variable in an experimental study is what the scientists can change in the experiment. The dependent variable is what the scientist measures in the experiment, or the outcome of the study. The controlled variables are all the features which are kept the same throughout the experimental study.

The independent variable in the experimental study is the fish tanks, the dependent variable is the goldfish, and the control can be anything which remains same throughout the experiment is the water, fish food, temperature.

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How do your interactions
with nonliving systems affect your
environment?

Answers

Explanation:

Interactions between different organisms are numerous and are usually described according to their positive (beneficial), negative or neutral effect on others.

The interactions between living things and their non living environment makes up a total ecosystem; understanding any one part of it requires knowledge of how that part interacts with the others. Ecosystems do not ‘collapse’ but do change in function, structure and composition over time due to natural or human disturbance (examples include the impact of drought, flooding, mowing and herbicides).

why is carbon the most versatile element in living organisms?

Answers

Answer:

Because it has four electrons in its second orbital, which can accommodate eight, carbon can combine in many different ways, and it can form very large molecules. Carbon bonds are strong and can stay together in water. Carbon is such a versatile element that almost 10 million different carbon compounds exist.

The fire extinguisher can ONLY be used by the teacher in an emergency

True
False

Answers

False. Probably I don’t have much context

what are The three major plant organs

Answers

roots
leaves
the stem
reproductive organs, such as male and female sex organs in flowers.
Root
Leaves
And stem

1. The spinal cord is organized in 35 segments.
o True
O False

Answers

The answer to this is false

How are you doing? Thank you for helping others. :)

Answers

Answer:

Explanation:

Fine, I believe. You're very much welcome...

how is sexual reproduction in plants become evolved to become less dependent on water?

Answers

Answer:

The Gymnosperms and Angiosperms are groups of plants with seed, which means that they don't necessary acquire water for fertilization. ... The sperm (male gamete) of gymnosperms is enclosed in a pollen grain. Thi structure is protected from desiccation and can reach the female organs without dependence on water.

Explanation:

The monomers of proteins (select all that apply)

polypeptides
amino groups
amino acids
R groups

Would the answer just be Amino Acids? I selected all 4, but that was wrong, so I am thinking it might just be Amino Acid or (Amino Acid+polypeptides)?

Answers

Answer:

amino groups

amino acids

R groups

Explanation:

I think these are right.

Because a polypeptide chain is polymer of amino acids that are linked together so that mean a polypeptide chain is protien.

name an organ found in a human.list three tissue which make up this organ

Answers

Answer: Your lungs

Explanation: there is 40 types of cells like the  cells of the epithelium, interstitial connective tissue, blood vessels, hematopoietic and lymphoid tissue, and the pleura

Hope this helps

Plz mark brainlest

please explain the interactions and interdependence of organisms within a biosphere. please provide me with a different example on these interactions and interdependence in the picture below. include nonliving organisms an illustrate why they are essential organisms

Answers

Now listen here u just go to your teacher and ask her for the answer sheet or just steal it

atmosphere is a mixture of two things

Answers

Answer: yes

Explanation:

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

What do you think will be the biggest
space mission of the twenty-first century?

Answers

Answer:

going to all the other plants to try to find life form

Community definition

Answers

Answer: Multiple populations in a given area

According to the lecture, what does all life depend on? What happens to bonds during chemical reactions? What is bond energy? How is energy related to bonds breaking and bonds forming? How will you know if/when a reaction is in equilibrium? What is activation energy and how is it related to a chemical reaction? What is the difference between exothermic and endothermic?

Answers

bonds inflicarate,rlr4lr4

Describe one reason why the solvent property of water is so important for living organisms (nature).

Answers

Answer:

Water is known as a universal solvent as it allows for lots of salts and gases to dissolve in it. Water is found between living tissues. This helps for vitamins, minerals and gases to dissolve in the cell. Because of this, the cell lives as it gets glucose and oxygen needed for respiration(to produce energy) .

Also water helps in transport of substances around the body.

The solvent property of water is very important for living organism due to its  high dissolving power.

The solvent property of water is very important for living organisms because water dissolve large number of solutes in it and helps in the transportation from one place to another.  Water is a polar substance which dissolves polar solutes in itself.

Water dissolve nutrients in itself and transport to the regions where it needed the most so we can say that the solvent property of water helps in the transportation of nutrients and other substance in the body of organisms.

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Give one similarity and one difference between the cell theory and the theory of
spontaneous generation.

Answers

Answer:

The fact that only cells are able to produce more cells is part of cell theory. The idea that organisms can develop independently of cells is called spontaneous generation, and it isn't supported by cell theory. Spontaneous generation suggests that living organisms develop from non-living matter.

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