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Kaylis [27]
3 years ago
14

When a photon of light energy reaches a reaction center chlorophyll molecule, what becomes excited?

Biology
2 answers:
BartSMP [9]3 years ago
4 0

Answer:

The correct answer to this question is C

Explanation:

The photon causes the electron in the chlorophyll to become "excited". The energy given travels from one pigment molecule to The other until it reaches a pair of chlorophyll molecules called the reaction center

zubka84 [21]3 years ago
3 0
The answer is c which is an electron
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One way to determine the density of animals in an area is to use the mark-recapture technique. A number of individuals from a po
NNADVOKAT [17]

Answer:

N = 187.55

Explanation:

Here you just need to replace the terms and clear the equation.

You already know that,

  • First capture: 25 prairie dogs.
  • First marked animals: 25 (the whole first capture)

You let these animals leave and then you made another capture.

  • Second capture: 135 prairie dogs
  • Already Marked animals: 18 (these 18 dogs were caught in the first capture and marked before releasing them)  

To know the size of the prairie dogs population you just need to use the following equation and clear N, which is the value that you are looking for.  

Number of individual marked in first catch/Total population size, N = Number of individual marked in 2nd catch / Total number of 2nd catch

  • Number of individual marked in first catch = 25 dogs
  • Total population size, N = this is what we want to know
  • Number of individual marked in 2nd catch = 18 dogs
  • Total number of 2nd catch = 135 dogs

So now, we need to replace terms

25 / N = 18 / 135

25 / N = 0.1333

N = 25 / 0.1333

N = 187.55

4 0
2 years ago
The evolution of membrane-bound organelles in eukaryotic cells resulted in many benefits to the cell. Describe three membrane-bo
Rzqust [24]

The mitochondrion is a membrane-bound organelle that provides energy by ATP synthesis (oxidative phosphorylation)

The lysosome contains about 40 hydrolytic enzymes that help with cellular digestion.

The Golgi apparatus plays an important role in the excretion and packaging of vesicles.

8 0
2 years ago
Which factor can potentially increase a teenager’s alcohol use?
Flauer [41]

Answer:

A teenager's decision to drink alcohol can be influenced by: early introduction to alcohol. exposure to adult binge drinking or alcohol dependence. access to alcohol from parents and others.

3 0
3 years ago
Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant to green seeds (y). What is the expected p
asambeis [7]

Answer:

The correct answer would be- 1:1:1:1.

Explanation:

According to the question the cross between the two pea plants with the genotype RrYy and rryy where R for round seeds and r for recessive form that expressed wrinkled seed character. The other character of this dihybrid cross is the color of the seds Y for green and y for yellow seeds.

The cross is shown in the image attached that suggests that phenotypic ratio would be 1:1:1:1 as RrYy, Rryy, rrYy, and rryy.

Thus, the correct answer is : 1:1:1:1.

3 0
3 years ago
Which two characteristics describe all organism in the domain Eukarya
Step2247 [10]
The answer should be d, they are in domain eukarya so their cells are eukaryotic.
4 0
3 years ago
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