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OLEGan [10]
2 years ago
14

Are humans autotrophs or heterotrophs ?explain why

Biology
1 answer:
77julia77 [94]2 years ago
8 0

Humans are heterotrophs.

<em><u>Here is why:</u></em>

Heterotrophs are organisms that <em>cannot </em>make their own food. Although us humans can cook, we can not take energy from the sun and make it into glucose, making energy for ourselves.

On the other hand, autotrophs are algae, plants, and even some bacteria. All of these examples <em>can </em>make their own food. They use the process of <u>photosynthesis</u> to take energy from the sun, along with carbon dioxide from the air and water from the soil around it to produce glucose. This glucose is used as their energy, which they make independently.

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3. The allele for round seeds is represented by R.
lutik1710 [3]

Answer:

rr

Explanation:

Alleles that are recessive will be lower case. Alleles that are dominant are upper case. Since we have two recessive alleles represented by 'R', the alleles would be written as 'rr'.

5 0
2 years ago
How are cancer therapies tailored to nucleotide synthesis -explain using the example of fluorouracil and methotrexate.
nika2105 [10]

Answer:

By preventing the synthesis of DNA halting cell growth.

Explanation:

Fluorouracil and methotraxate prevent the synthesis of the neucleoside Thymidine thus preventing DNA replication and elongation. Methotraxate has a structure analogous to Folic acid which is important for thymidine synthesis. Thus, it acts as a competitive inhibitor on dihdrofolate reductase an enzyme that is essential for tetrahydrofolate formation, a folic acid derivative.

Fluorouracil acts by inhibiting thymidylate synthase which catalyses an essential step in Thymidine synthesis.

3 0
3 years ago
Why is watershed pollution an important environmental issue?
Mkey [24]

I think the answer is C


8 0
3 years ago
Lithified ash (or ash mixed with pyroclastic fragments) forms a volcaniclastic rock called a:________
sweet [91]

Lithified ash (or ash mixed with pyroclastic fragments) forms a volcaniclastic rock called a Tuff.

  • A form of rock called tuff is created when volcanic ash is blasted from a vent during an eruption.
  • The ash is transformed into a rock after ejection and deposition. Tuff is defined as rock with an ash content of more than 75%, whereas tuffaceous refers to rock with an ash content of 25% to 75%.
  • The thickness of tuff often decreases with distance from the volcano and is usually greatest close to the volcanic vent. The typical shape of a tuff deposit is that of a "lens," not a "layer."
  • Tuff may also be thickest on the vent's side that faces away from the wind or on the side facing the direction of the blast.

learn more about tuff here: brainly.com/question/27870503

#SPJ4

4 0
2 years ago
Identify this symbol.<br><br> H₂O<br><br> anion<br> cation<br> atom<br> molecule
Vikki [24]

Answer:

molecule

Explanation:

because water aka h20 is a molecule

7 0
3 years ago
Read 2 more answers
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