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Alexxandr [17]
3 years ago
10

Which of these organisms does not need a digestive system because it produces its own food? A)cactus B)bee C)tiger D)dinosaur

Biology
2 answers:
umka21 [38]3 years ago
7 0

Answer:

Cactus is the answer

schepotkina [342]3 years ago
4 0

Answer:

Explanation:

                                                                                                                                                       

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Both coal and diamonds are forms of elemental carbon. Coal is brittle while diamonds are considered to be the hardest Of all sub
Art [367]

arbon, as with many elements, can arrange its atoms into several different geometries, or "allotropes." In pure diamond, every carbon atom is covalently bonded to exactly 4 other carbon atoms in a very specific and energetically favorable geometry. The diamond cannot be broken or scratched unless many covalent bonds are broken, which is difficult to do. In another common allotrope, graphite, every carbon atom is covalently bonded to only 3 other carbon atoms, and the atoms are arranged in sheets that are not covalently bonded to each other. The sheets can be broken apart easily, ultimately meaning that graphite can be easily scratched. Coal is composed of particles of different allotropes of carbon, and some "amorphous carbon," which has no defined geometry in its atomic structure. Without a continuous network of covalent bonds, coal is easily scratched (i.e. it is not hard).



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3 years ago
Why does dna replication occur before mitosis
shepuryov [24]
The DNA has to replicate before mitosis to keep the number of chromosomes consistent. Hope this helps.
5 0
3 years ago
Question 2 (Multiple Choice Worth 2 points)
kolezko [41]

Explanation:

The atmosphere is the gaseous envelope round the earth.

The biosphere is the part of the earth dominated and occupied by living organisms.

As with other spheres of the earth, the biosphere and atmosphere are constantly interacting too.

  • Organisms breathe in air to their respiration processes.
  • Weather elements are conditioned by the atmosphere.
  • Decomposition of organisms release gases back into the atmosphere.

learn more:

Biogeochemical cycle brainly.com/question/4217448

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6 0
3 years ago
Click each test tube to test for the
liubo4ka [24]

Answer: does not contain protein

Because it is not pink and purple

Explanation:

Edge 2020

5 0
3 years ago
Once an experiment is complete,
vladimir1956 [14]

Answer:

D. altering it to fit within the hypothesis

Explanation:

An experiment is carried out to fill an inquisition i.e. to answer a question. According to the scientific method, prior to experimentation, there must be a HYPOTHESIS. The hypothesis is tested for rejection or approval via experimentation.

After the experiment has been conducted, several things can be done with the data obtained. For example:

- Data can be interpreted

- the data can be plotted in a graph to find correlations

- It can be analyzed it with statistical analysis.

One thing that should never be done is; altering the data from experimentation to fit in the hypothesis.

4 0
3 years ago
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