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igor_vitrenko [27]
3 years ago
11

Biology 9th grade need help asap please

Biology
2 answers:
mezya [45]3 years ago
7 0

Answe

???

Explantion hehehehehehheheheh

Arlecino [84]3 years ago
4 0

Answer: A sugar-phosphate backbone (alternating grey-dark grey) joins together nucleotides in a DNA sequence. The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

Explanation:

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1. An inherited characteristic that allows<br> anorganism to better survive is called<br> a(n)-
leva [86]

Answer:

adaption

Explanation:

5 0
2 years ago
Which types of plant cells must receive glucose from other plant cells?
levacccp [35]

Answer:

While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. They need mitochondria for this.

In particular, at night when there is no light, plants undergo cellular respiration since there is no sunlight to photosynthesize.

They do, however, produce far more sugar and oxygen through photosynthesis than they use up in respiration.

8 0
3 years ago
At the beginning of cellular respiration ____________________________ occurs, where glucose is broken down into pyruvate and ATP
Lorico [155]

Answer:

The answer is glycolysis.

Hope this helps and if you could mark this as brainliest. Thanks!

8 0
3 years ago
The characteristics of the active site microenvironment of an enzyme can be largely independent of individual catalytic mechanis
Valentin [98]

Answer: (1) Providing an optimized orientation of the substrate.

(2) Decreasing the ∆G in reaction.

(3) Excluding excess water.

Explanation: The active sites of enzymes increase the rate of reaction because they decrease the activation energy of the reaction,and the physical microenvironment provides an optimal orientation of the substrate relative to reactive functional groups while excluding excess solvent,such as water.

Although some active sites may have amino acids that form salt bridges with the amino acids from a substrate,not all do, so this is not a generic strategy of active site microenvironments

*Gotten directly from Quizlet*

8 0
3 years ago
Extra-solar planets are probably composed of which gases? Select all that apply.
kherson [118]

Answer:

Hydrogen and helium.

Explanation:

Extrasolar planets, also called exoplanets are the planets that are placed out of the solar system and it orbits around another star, not the Sun. The planets that are not orbiting around the Sun are made of two easiest elements, and those elements are hydrogen and helium. Extrasolar planets are very strange objects that are not even close to looking like Earth.

6 0
3 years ago
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