1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Westkost [7]
3 years ago
10

Who help me about this?

Biology
2 answers:
weqwewe [10]3 years ago
6 0

Answer:

Its easy Ana

Explanation:

tester [92]3 years ago
6 0
The answer to the information above is Ana
You might be interested in
If you were making a product of artificial "Grow-Lites" for plants, what color light should
UNO [17]

Answer:

<u>-blue and red light</u>

Explanation:

Plants produce sugars or carbohydrates during the process of photosynthesis. They absorb light energy from the electromagnetic spectrum with pigments within the thylakoid membrane, like chlorophyll a, chlorophyll b.

Chlorophylls are made of ringed molecules chlorine, a hydrogenated form of porphyrin with a magnesium ion bonded to four atoms of nitrogen. Chlorophyll a shows the most absorption of red light  (642 nm) and blue light (372 nm); while chlorophyll b shows the most absorption at 626 nm and 392 nm.  

Different types of chlorophyll sidechains change the molecules' absorption ranges; A's methyl group is bound at carbon 7,  B's aldehyde (CHO) ring is bound at carbon 7.  Both absorb light from orange-red and violet-blue wavelengths. As such, the best light wavelengths for photosynthesis are within the blue and red wavelengths (425–450 nm) and (600–700 nm).

8 0
3 years ago
You determine that you have only three copies left of an important DNA fragment, so you decide to amplify it. Using flanking pri
kicyunya [14]

Hello. This question is incomplete. The full question is:

"You determine that you have only 3 copies left of an important DNA fragment, so you decide to amplify it. Using flanking primers, how many PCR cycles would you have to run to generate over one billion (10^9) copies of the fragment? "

Answer:

Approximately 29 cycles of PCR would be required.

Explanation:

As you may already know, PCR is a technique used in molecular biology that allows part of a DNA molecule to be recycled into millions of copies.

PCR allows this replication to be done through cycles. Each PCR cycle lasts about 2 minutes and allows the DNA molecule to undergo the separation of the strands, the binding of the primers and the synthesis of new DNA strands through DNA polymerase. This cycle is usually repeated 32 times, but this number may change depending on the number of copies the researcher thinks is necessary.

In this case, if a researcher wants 10 ^ 9 copies of DNA, he must do the following calculation to find the number of PCR cycles needed:

32 ^ x = 10 ^ 9

x = 28.3 = approximately 29 cycles.

4 0
3 years ago
The nurse is assigned to watch the cardiac monitors in the constant care unit and notes four different clients displaying arrhyt
Tresset [83]
<span>The nurse should give the highest priority care to the Ventricular Arrhythmias Patient. Because Ventricular arrhythmias start in the heart's lower chambers, the ventricles. They can be very dangerous and usually require medical care right away. Ventricular arrhythmias include ventricular tachycardia and ventricular fibrillation. Ventricular tachycardia is an abnormal electrical impulses that start in the ventricles and cause an abnormally fast heartbeat. This often happens if the heart has a scar from a previous heart attack. Usually, the ventricle will contract more than 200 times a minute. Ventricular fibrillation is an irregular heart rhythm consisting of very rapid, uncoordinated fluttering contractions of the ventricles.The ventricles do not pump blood properly, they simply quiver. Ventricular fibrillation is life threatening and usually associated with heart disease. It is often triggered by a heart attack.</span>
5 0
3 years ago
There were no geologists alive when the Bright Angel shale layer formed. However, scientists have been able to determine that th
klio [65]

Answer:

because people where not alive yet oontill cenoznic era

Explanation:

6 0
3 years ago
Read 2 more answers
The Great American Biotic Interchange helped establish the fauna that exist in both North and South America today. Which of the
patriot [66]

Answer:

The correct answer is option d. "Many species that moved into North America from South America outcompeted the endemic taxa and still exist today".

Explanation:

The Great American Biotic Interchange (GABI) was an historical period at which numerous species from South America migrated to North America, and numerous species from North America migrated to South America because of the formation of the Isthmus of Panama. During this event, many species that moved into North America from South America outcompeted the endemic taxa and still exist today. The species that successfully immigrated to South America and exist today were mostly small mammals, such as armadillos and opossums.

6 0
3 years ago
Other questions:
  • Which medical technology is quickly used to measure body temperature?
    11·2 answers
  • Which of the following is a result of elevated levels of white blood cells and reduced levels of red blood cells in the body? (2
    6·1 answer
  • Which protein is a positive regulator that phosphorylates other proteins when activated?
    5·1 answer
  • Will give Brainliest (8th grade science) HELP
    6·1 answer
  • Imagine a genetic counselor working with a couple who have just had a child who is suffering from Tay-Sachs disease. Neither par
    15·1 answer
  • Describe your plan to determine if the paths of past hurricanes can help determine the paths of past hurricanes
    10·1 answer
  • What are the three parts of all seeds?
    11·2 answers
  • This a question that you need to apply knowledge of both the digestive system AND biochemistry. You eat
    5·1 answer
  • Which of the following filters blood by using phagocytic cells?
    7·1 answer
  • Explain why some leaves are green and some are yellow in the photosynthesis process
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!