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3 years ago

Nitrogen is changed from a free gas to a usable form by a process called

Biology

1 answer:

Dimas [21]3 years ago

3 0

Answer:

nitrogen fixation.

Explanation:

Nitrogen fixation is the process by which the combination of molecular nitrogen oxygen or hydrogen is given to give oxides or ammonium that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living beings.

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In two or more complete sentences, describe an activity you perform that has an impact on climate change? Is it positive or nega

Phoenix [80]

Answer:

Burning of woods has a negative impact on the climate.

Explanation:

Burning of woods for heating has a negative impact on our climate because it releases carbondioxide gas which is a greenhouse gas that trapped the reflected solar radiation and leads to global warming. We have to used alternative methods for heating such as electric heater instead of burning of wood which produce no pollution and can fulfill the requirement of heating so from the above discussion we can say that the activity has a negative impact on the environment.

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3 years ago

20 POINTS !!!! After much research and DNA analysis it has been determined that species in the same clade are actually more dist

Klio2033 [76]

B) A node would be introduced.

This would be used to help provide distinctions to these species

8 0

3 years ago

Read 2 more answers

Parasitism is an example of

maw [93]

Answer:

Parasitism is a relationship between two different organisms where one of the organisms actually harms the other through the relationship. The organism that is harming the other one is called a parasite. Examples of Parasitism: Fleas or ticks that live on dogs and cats are parasites.

Explanation:

4 0

3 years ago

makvit [3.9K]

Answer:

1.2The main processes involved in the movement of water between the different reservoirs are evaporation, condensation, transport, precipitation, runoff (water runoff from the ground surface), infiltration and transpiration

3.The large surface of the oceans (about 70 percent of the earth's surface is covered by oceans) favors the occurrence of large-scale evaporation. On a global scale, the same amount of water that is evaporated returns to Earth as precipitation. This however varies geographically

4.Earth from Space Although the engine of the cycle is the solar energy that originates the evaporation of liquid water, and therefore its passage into the atmosphere, the role of gravity is also fundamental, thanks to which precipitation falls and continental waters return to the oceans

5.The water cycle is powered by solar energy. The sun heats the surface of the ocean and other surface waters, which evaporates liquid water and sublimates ice, converting it directly from a solid to a gas. These sun-driven processes move water into the atmosphere in the form of water vapor

Explanation:

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3 years ago

On the planet Kermit, in the Muppet population, there are two autosomal loci of interest. The first locus has alleles A and a, a

astra-53 [7]

Answer:

The values that most closely represent the expected number of Janice blonde-haired offspring is 252 individuals, option C.

Explanation:

<u>Available data</u>:

Two diallelic genes acting in a recessive epistatic manner to express hair color
Allele A is dominant over the allele a
Allele B is dominant over the allele b
A_B_ Cookie monster blue
aaB_ Elmo red
__bb Janice blonde

When talking about epistasis, we are referring to an interruption. These are interactions between genes located in different loci in the same chromosome. An epistatic gene can alter, influence, or suppress the expression of a hypostatic gene. When the epistatic gene is recessive, the interaction is known as <u>recessive epistasis</u>.

Observing the altered phenotype proportions of the offspring can reveal which interaction is operating in the trait determination.

In recessive epistasis, the proportion is 9:3:4.

Cross: Between two doubly-heterozygous

Parentals) AaBb x AaBb

Phenotype) Cookie-monster blue-haired individuals

Gametes) AB, Ab, aB, ab

AB, Ab, aB, ab

Punnett square) AB Ab aB ab

AB AABB AABb AaBB AaBB

Ab AABb AAbb AaBb Aabb

aB AaBB AaBb aaBB aaBb

ab AaBb Aabb aaBb aabb

F1) 1000 individuals

9/16 individuals are expected to be Cookie-monster blue-haired, A-B-

3/16 individuals are expected to be Elmo Red, aaB-

4/16 individuals are expected to be Janice blond, A-bb + aabb

16 ------------------------------------------- 1000 individuals

4 Janice blond individuals ---------- X = 250 individuals

So, 250 individuals are expected to be Janice blonde. The observed number might vary a little bit from this value. The values that most closely represent the expected number of Janice blonde-haired offspring is c = 252 individuals

5 0

3 years ago