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Lelechka [254]
3 years ago
15

The nitrogen which plants absorb must come from:

Biology
2 answers:
scoray [572]3 years ago
7 0

Answer:

the atmosphere

Explanation:

The reason why it's the atmosphere is because there is no free nitrogen in the soil that can help the plant's grow it's only found in our atmosphere that can help our plants grow.

Sergeeva-Olga [200]3 years ago
4 0

the atmosphere, is the correct answer.

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Many studies have indicated that there is some genetic influence on body weight and composition. Researchers have established a
sukhopar [10]

Answer:

A

Explanation:

The thrifty gene hypothesis postulates that due to dietary scarcity during human evolution, people are prone to obesity by storing energy as fat, an ability to take advantage of rare periods of abundance  and this is advantageous during times of food availability. individuals with greater adipose reserves would more likely survive famine. This tendency to store fat could lead to obesity.

FTO is an enzyme that is encoded in humans by FTO gene located on chromosome 16. Increase in this enzyme is associated with the regulation of energy intake but not feeding reward. Also, the set point theory indicates that bodies are meant to stay within a narrow weight range but it is susceptible to chnage overtime.

4 0
3 years ago
Protists are very diverse, and many different classification schemes have been used to define relationships between the protists
andrey2020 [161]

Answer:

D. heterotrophic by ingestion, pseudopods

Explanation:

Protists are generally classified  as all eukaryotic organisms that are not plants, animals or fungi. Example is amoeba, paramecium etc.They may be unicellular or multi cellular in nature.Most exist in colonies.

Their mode of nutrition can be photosynthetic or hetrotrophic. Hetrotrophic  protists   can be divided into  phagotrophs and osmotrops/saprotrophs. The phagotrophs  makes use of the cell body to engulf the food materials as  in amoeba ,carry out extracellular digestion before swallowing it.

Osmotrops absorbed dissolved food from surrounding liquid environments directly. (Some photosynthetic protists can also be heterotrophic.

Amoeboid movement is the mode of locomotion of protists and some  other eukaryotes. It involved the protrusion of cytoplasm, which exert pressure on the cell membrane to form pseudopodia and  the posterioly  evolved  <u>Uropods. </u>

<u />

<u>  </u>

<u>Sol-gel theory has been proposed to expalin this movements, The ectopalsm of amoeba is gelly-like , while the endiplams is less viscpus   and said to be sol. The interchange of the cytoplasmic fluis between the endo-and ecto plasm gives the SOL-GEL propulsion of the protopalms for the amoebic moveemnts .</u>

<u />

<u>The false feet(psuedopodium) drags the amoeba  along in the direction of the flow of the cytoplasm.</u>

Therefore option D is  the right option

4 0
3 years ago
White blood cells produce , substances that destroy pathogens in the body.
mihalych1998 [28]
White blood cells produce antibodies which fight off the pathogens
8 0
3 years ago
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As we go from kingdom to species, what happens to the groups within each level of organization?
Ivenika [448]
Hey um dmdmdmd kk did ididfjjfddj jsshdjehe. Jerjdjhrrhc
6 0
3 years ago
What happens directly after prophase?
ss7ja [257]

Answer:

metaphase

Explanation:

remember PMAT

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3 years ago
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