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marysya [2.9K]
3 years ago
12

Which molecule supplies chlorophyll with electrons

Biology
1 answer:
True [87]3 years ago
7 0

In light reactions, a molecule of chlorophyll absorbs one photon of light, causing a chlorophyll electron to transfer to a higher energy level. The energized electrons from the chlorophyll molecules flow down a transportation chain to a compound called nicotinamide adenine dinucleotide phosphate or NADP.

<h3>▪▪▪Cutest Ghost▪▪▪</h3>
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Describe how deforestation might contribute to global warming.
wel
Deforestation may contribute to global warming as the more trees you chop down the higher the carbon dioxide in the air, as the trees take in some carbon dioxide so when you chop down trees the carbon dioxide levels increase making the gloabl warming increase
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Choose a mammal in each group, monotreme, placental mammal, and marsupials. Write a paragraph description of each mammal and inc
MrRa [10]

Answer:

a primitive mammal that lays large yolky eggs and has a common opening for the urogenital and digestive systems. Monotremes are now restricted to Australia and New Guinea, and comprise the platypus and the echidnas.

Explanation:

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3 years ago
With a population in Hardy-Weinberg equilibrium, the A allele has a frequency of 0.60, and the frequency of the a allele is 0.40
valkas [14]

Following the Hardy-Weinberg equilibrium theory, the frequency of the heter0zyg0us genotype is 2pq. In the exposed example, 2pq = 0.48.

<h3>Hardy-Winberg equilibrium</h3>

The Hardy-Weinberg equilibrium theory states that the allelic frequencies in a locus are represented as p and q.

Assuming a diallelic gene,

→  The allelic frequencies are

  • p is the frequency of the dominant allele,
  • q is the frequency of the recessive allele.

→  The genotypic frequencies after one generation are

  • p² (H0m0zyg0us dominant genotypic frequency),
  • 2pq (Heter0zyg0us genotypic frequency),
  • q² (H0m0zyg0us recessive genotypic frequency).

If a population is in H-W equilibrium, it gets the same allelic and genotypic frequencies generation after generation.

The addition of the allelic frequencies equals 1  ⇒ p + q = 1.

The sum of genotypic frequencies equals 1 ⇒ p² + 2pq + q² = 1

If the allele A has a frequency of 0.6, and the allele B has a frequency of 0.4, then the frequency of the heter0zyg0us genotype is

2pq = 2 x 0.6 x 0.4 =<u> 0.48</u>

You can learn more about the Hardy-Weinberg equilibrium at

brainly.com/question/3406634

7 0
2 years ago
gets BRAINILIST pls help need major help litarlly crying for help pls help me pls It question 11 of critical thinking 6th of 1.1
Dmitry_Shevchenko [17]

Answer:

In this interview for Think magazine (April ’’92), Richard Paul provides a quick overview of critical thinking and the issues surrounding it: defining it, common mistakes in assessing it, its relation to communication skills, self-esteem, collaborative learning, motivation, curiosity, job skills for the future, national standards, and assessment strategies.

Question: Critical thinking is essential to effective learning and productive living. Would you share your definition of critical thinking?

Paul: First, since critical thinking can be defined in a number of different ways consistent with each other, we should not put a lot of weight on any one definition. Definitions are at best scaffolding for the mind. With this qualification in mind, here is a bit of scaffolding: critical thinking is thinking about your thinking while you’re thinking in order to make your thinking better. Two things are crucial:

1) critical thinking is not just thinking, but thinking which entails self-improvement

2) this improvement comes from skill in using standards by which one appropriately assesses thinking. To put it briefly, it is self-improvement (in thinking) through standards (that assess thinking).

To think well is to impose discipline and restraint on our thinking-by means of intellectual standards — in order to raise our thinking to a level of "perfection" or quality that is not natural or likely in undisciplined, spontaneous thought. The dimension of critical thinking least understood is that of  "intellectual standards." Most teachers were not taught how to assess thinking through standards; indeed, often the thinking of teachers themselves is very "undisciplined" and reflects a lack of internalized intellectual standards.

Question: Could you give me an example?

Paul: Certainly, one of the most important distinctions that teachers need to routinely make, and which takes disciplined thinking to make, is that between reasoning and subjective reaction.

If we are trying to foster quality thinking, we don't want students simply to assert things; we want them to try to reason things out on the basis of evidence and good reasons. Often, teachers are unclear about this basic difference. Many teachers are apt to take student writing or speech which is fluent and witty or glib and amusing as good thinking. They are often unclear about the constituents of good reasoning. Hence, even though a student may just be asserting things, not reasoning things out at all, if she is doing so with vivacity and flamboyance, teachers are apt to take this to be equivalent to good reasoning.

This was made clear in a recent California state-wide writing assessment in which teachers and testers applauded a student essay, which they said illustrated "exceptional achievement" in reasoned evaluation, an essay that contained no reasoning at all, that was nothing more than one subjective reaction after another. (See "Why Students-and Teachers-Don't Reason Well")

The assessing teachers and testers did not notice that the student failed to respond to the directions, did not support his judgment with reasons and evidence, did not consider possible criteria on which to base his judgment, did not analyze the subject in the light of the criteria, and did not select evidence that clearly supported his judgment. Instead the student:

Explanation: I have had this one before.

5 0
3 years ago
4. There are three codons that signal the end of synthesis, these are called STOP codons.
IRISSAK [1]

Answer:

UAG, UAA, and UGA are the three STOP codons.

Explanation:

3 0
2 years ago
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