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Ainat [17]
3 years ago
7

Refer the the graph below showing the absorption spectrum of chlorophyll a. Explain what the graph is showing

Biology
1 answer:
Stella [2.4K]3 years ago
7 0

Answer: The graph shows that chlorophyll a absorbs light principally around 420-450 nm and 650-680nm wavelengths

Explanation: Chlorophyll a is a pigment found in plants that traps light energy for use in photosynthesis. Chlorophyll a absorbs light mostly in the blue and orange-red wavelengths. This is shown in the graph, where the peaks are around the 400nm and 600nm wavelengths, corresponding to blue and red in visible light.

This absorption means the pigment is 'excited' by this light, sending into a higher state if energy which provides energy for the reactions of photosynthesis.

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Based on fossil data, the researcher estimates that humans and their most closely related species in the data set diverged appro
tester [92]

Answer:

Hello your question is incomplete attached below is the complete question

answer : = 1.25

Explanation:

i) Determine the rate of mtDNA percent divergence

From the data given the most closely related specie is Chimpanzee ( 8.8 sequence  difference )

Note : Given that this divergence took place seven million years from now

∴The rate of mtDNA percent  divergence per 1 millions years

= 8.8 / 7 = 1.25

5 0
2 years ago
The digestive system codes include sites from the mouth to the anus, as well as the?
EastWind [94]

The most important organs that make up the digestive system (so as in their function) are the mouth, esophagus, stomach, small intestine, big intestine, rectum and anus.

Helping them alongside the manner are the pancreas, gall bladder and liver. Here's how those organs paintings collectively on your digestive system.The GI tract is a sequence of hole organs joined in a long, twisting tube from the mouth to the anus.

The hole organs that make up the GI tract are the mouth, esophagus, stomach, small intestine,large intestine, and anus. The liver, pancreas, and gallbladder are the stable organs of the digestive system.

To learn more about the digestive system here

brainly.com/question/32531

#SPJ4

6 0
1 year ago
39 points
Anna71 [15]

u are lying u are not giving 39 points u are just giving 5

6 0
3 years ago
Emily's body starts to develop secretory glands at the end of the milk ducts in the breasts. Based on the given information, we
IrinaVladis [17]

Answer:

Thelarche

Explanation:

In females, thelarche represents the start of puberty and as such it marks the beginning of the secondary development of the mammary glands known as breasts. This pubertal development usually occur in females that are between the ages of 8 years and 12 years due to the secretion of hormones such as estrogen.

In this scenario, Emily's body starts to develop secretory glands at the end of the milk ducts in the breasts. Based on the given information, we can say that Emily is most likely to be in the thelarche stage because she is beginning to experience breast budding.

7 0
3 years ago
Which day is considered to be the 1st day of the female reproductive system
shepuryov [24]

<u>Answer: </u>

The day one starts with the first day of your periods when the blood and tissue lining the uterus (womb) break down and leave the body is considered to be the '1st day' of the 'female reproductive system'.

<u>Explanation: </u>

  • The periods, that is the 'first day of female reproductive system' starts during puberty and stops 'permanently at menopause'.
  • The menstrual cycle starts with the 'first day of bleeding', which is counted as 'day one'.
  • The menstrual cycle stops just before the "next menstrual period". Menstrual cycle normally ranges from 25 to 36 days.
  • The periods may last anywhere from '3 to 8 days', but '5 days' is average.
8 0
3 years ago
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