The analysis of rRNA gene sequences to compare evolutionary relationships is known as

Taxonomy is the science that helps us understand?

lana [24]

The branch of science that really lets us understand organisms better.

7 0

2 years ago

What is the dependent variable and what is the independent variable in this?

maks197457 [2]

Answer:

Variables are given a special name that only applies to experimental investigations. One is called the dependent variable and the other the independent variable. The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable.

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6 0

2 years ago

How many rings does chlorophyll a and b have

In-s [12.5K]

Explanation:

Each has one chlorin ring- chlorin is a form of porphyrin.

Chlorophylls are comprised of a ringed molecule, chlorin, a hydrogenated form of porphyrin which contains a magnesium ion at the center, bonded to four atoms of nitrogen. Varying types of Chlorophyll have side chains, which affect the absorption spectrum of the molecule for instance A has a methyl group bonded to the C7 position, while B has an aldehyle (CHO) group at this location.

Embedded within the thykaloid membrane of chloroplasts, chlorophyll a and B mainly absorb orange-red and violet-blue wavelengths and convert light energy into chemical energy for the process of photosynthesis. This occurs in the light-dependent reactions of photosynthesis, within chloroplasts of plants. The range of wavelengths absorbed by a pigment is its absorption spectrum while it reflects those outside of this range. Plants appear green as this region of light is reflected by the pigments.

Learn more about Photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

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6 0

3 years ago

If 240 mL of water is added to 13 mL of 5.0 M NaCl solution,

zavuch27 [327]

Answer:

The correct answer is 0.26 M

Explanation:

The initial concentration of NaCl solution (Ci) is 5.0 M. The initial volume of the solution (Vi) is 13 mL. The final volume is the addition of 240 mL to 13 mL (Vf= 13 mL + 240 mL= 253 mL).

In order to calculate the final concentration of the solution (Cf) we can use the following expression:

Ci x Vi= Cf x Vf

This mathematical expression is often used to calculate concentrations in dilution procedures. So, we introduce Ci, Vi an Vf in the expression and we calculate Cf:

Cf= (Ci x Vi)/Vf= (5.0 M x 13 mL)/253 mL= 0.257 M ≅ 0.26 M

8 0

2 years ago

Corbohydrate avilability during excercise helps to regulate _and its use of energy

photoshop1234 [79]

Fat Mobilization should be it.

4 0

1 year ago

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