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mel-nik [20]
3 years ago
8

Explain 2 important differences between the structure of dna and the structure of rna.

Biology
1 answer:
Alex Ar [27]3 years ago
8 0
Rna does not contain thymine but instead it contains uracil. dna is inside the cell while the rna is transcripted by the rna polymerase
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Considering the wavelengths of light shown below, the pigments in the granum absorb mainly in which range?
antoniya [11.8K]

Answer:

D. blue-violet and red-orange

Explanation:

The light reactions of photosynthesis use only  certain wavelengths of visible light.

Light absorbing molecules known as pigments in  the membranes of a granum absorb mainly  in blue-violet and red-orange wavelengths. We do not see these absorbed wavelengths. What we see when we look at a leaf are the  green wavelengths that the pigments transmit and reflect.

4 0
3 years ago
Which is an example of an incomplete dominance
VashaNatasha [74]
Pink snapdragons are a result of incomplete dominance. Cross-pollination between red snapdragons and white snapdragons result in pink when neither the white or the red alleles are dominant. The fruit color of eggplants is another example of incomplete dominance.
7 0
3 years ago
From where did the carbon in all living things come?
-Dominant- [34]

Answer:

Option B, It was made in stars that lived before the solar system formed.

Explanation:

Almost all the carbon that exists today with in the living organisms was produced in the stars. When these stars exploded during the big bang theory all the carbon within hem was introduced in the environment of earth some billions of years ago. Hence , though carbon introduced in earth’s environment was due to big bang, its origin is from the stars. Hence option B is the correct answer

Cyanobacteria is responsible for generation of oxygen on planet earth and thus option D is in correct.

7 0
3 years ago
Which of the following terms refer to the total number of different species, including humans, on Earth or in an area? (Choose a
lorasvet [3.4K]

Answer:

biodiversity

Explanation:

3 0
3 years ago
Using a food label, explain what each section will tell you and why that would be important to, say, a long-distance runner.
Harlamova29_29 [7]

Answer:

The following are the sections which can be seen in a food label:

1) Product dates:

Under this section look for the production date and the expiry date ( best before). The production date tells when the food was made. The expiry date tells the date before which the food has to be used.

2) Ingredient list:

The list of all the ingredients used for the preparation of the food is mentioned.

3) Nutrition Facts Label

At the top of this label, we will see the total number of servings and size of the container. Thus table shows some key nutrients and the percent of them present in the container of food. It also shows the calories of each. Percent Daily Value (DV) shows the percentage of each nutrient present.

The nutrient label are important to an athlete because he/she needs to take a diet which is capable of filling us nutrient requirements. Athletes tend to perform well when they have a balanced diet. To get a balanced diet, they need to look at the nutritional values.

7 0
3 years ago
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