BIOLOGY HIGH SCHOOL

Which parts of the nitrogen cycle are involved in moving nitrogen from the atmosphere into the soil? a. 3 and 7
b. 1 and 4
c. 4 and 6
d. 6 and 7

Answers

Answer 1
Answer: The answer to this question is:
The parts of the nitrogen cycle are involved in moving nitrogen from the atmosphere into the soil is 1 and 4. It's letter B. 

>The nitrogen cycle is the process by which nitrogen is converted between its different chemical forms. 

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What is speciation? A.the process by which new species are formed

B.the mutations that take place in an organism’s DNA

C.the way that most species become extinct

D.the adaptations that help an organism fit into its environment

Answers

The answer is A. Speciation is the process by which new species are formed. It is an evolutionary process where certain biological populations evolve to new distinct species. It was the biologist Orator F. Cook who first coined this term. There are types of speciation namely sympatric, parapatric, peripatric and allopatric.

What is the speed, in m/s, of a wave on a cord if it has a wavelength of 4m and a period of 0.5 s?

Answers

Velocity= frequency* wavelength
            Frequency= 1/periodic time
                             = 1/ 0.5s
=2 Hz
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Learning Task 5: Write at least five benefits derived from planting treesand fruit bearing trees to families and communities.
1________________
2_________________
3__________________
4____________________
5_____________________​

Answers

1. save more money!
2. you get natural fruits!

In certain populations disruptive selection is occurring in this population which is most likely to survive1)organisms that are small
2) organisms that sexually select
3) organisms with average traits
4) organisms with extreme traits

Answers

The organisms with extreme traits.  

• Diversifying selection also known as disruptive selection, illustrates variations in population genetics in which extreme traits are favored over the intermediate traits.  

• It is the rarest of the three kinds of natural selection and can result in the deviation of a species line.  

• In disruptive selection, the makeup of the population would demonstrate phenotypes of both extremes traits.  

• One of the most common example of disruptive selection is London's peppered moths. The darker colored moths were able to survive from predators as they blended with the polluted surroundings, while the lighter moths got extinct.  The medium-colored moths were witnessed easily and got killed by the predators.  

Thus, correct answer is option 4, that is, organisms with extreme traits.

To know more about:

brainly.com/question/14782944

Explanation:

In certain populations disruptive selection is occurring in this population which is most likely to survive

organisms with average traits

Select the item that is NOT a common pathogen. 1.) Salmonella 2.) Typhoonosis 3.) Staphylococcus aureus 4.) Listeria

Answers

2) Typhoonosis.

Here's why:
1)Salmonella-It's a pahtogen.

2)Typhoonosis-Typhoonosis doesn't exist, so it isn't a pathogen.

3) Staphylococcus Aureus-It's a pathogen.

4)Listeria-It's a pathogen.


I hope I helped! :)

Describe how feedback inhibition works

Answers

Say you have a pathway 
A-->B-->C-->D 

So your A leads to production of B which leads to production of C which leads to production of D 
In feedback inhibition (or a negative feedback loop), the final product of a pathway (in this case, D) will usually inhibit or stop the first step in that pathway. So in this instance, D would do something to stop A-->B from occurring. It could bind A or the enzyme that makes that step occur. 
Basically, the end product somehow stops one of the earliest steps in the pathway
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