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Vesnalui [34]
2 years ago
11

Help Me on this Science ? Its Really Confusing and i need it to get a passing grade

Biology
1 answer:
Crank2 years ago
7 0
I'll help you with your science
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Many years of evolution is most likely to produce
Kamila [148]
D) differences between species and their ancestors

This is because of the adaptive mechanism and mutations the organisms have to respond to. <span>Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time. An example of this are the bills of a bird and the fur of bears that they generally need for their survival; birds for hunting, and bears to protect them from low climate areas.</span>
4 0
2 years ago
When enzymes are elongating (building) a newly synthesized dna strand in pcr, new nucleotides are being added to the ____ of the
Tamiku [17]
The correct answer is c. 3 ' hydroxyl of deoxyribose.  
<span>
During the DNA synthesis via PCR, polymerization occurs in 5’-3’ direction. This means that enzyme DNA polymerase which synthesizes a new DNA strand is complementary to the DNA template strand (3’-<span>5’ direction). 5’ phosphate group of the free nucleotides which are added is attached to the 3'-hydroxyl group at the end of the elongating DNA strand.</span></span>
3 0
3 years ago
Read 2 more answers
Use the drop-down menus to put the events of the light-dependent reaction of photosynthesis in the correct order.
mash [69]

Events of the light-dependent reaction of photosynthesis starts with the absorption of sunlight and ends with ATP production.

<h3>Events of  light-dependent reaction</h3>
  • In the first step energy is absorbed from the sun and then water is broken down.
  • Hydrogen ions of the water molecules are transported across the thylakoid membrane.
  • NADPH is produced from NADP+.
  • Hydrogen ions diffuse through the protein channel.
  • ADP turns into ATP.

Learn more about light-dependent reaction here: brainly.com/question/2114531

8 0
1 year ago
You observe a tissue under the microscope and see intercalated discs between adjacent cells. which tissue are you observing
Monica [59]
The correct answer is a muscle tissue, more precisely cardiac muscle tissue. <span>Cardiac muscle tissue consists of individual cardiomyocytes (heart muscle cells) which are connected by intercalated discs to work as a single functional organ. The function of intercalated discs is to support synchronized contraction of cardiac muscle.</span>
5 0
2 years ago
Explain why extended exercise is considered to be "healthy"
sp2606 [1]
Many physical disorders that occur in humans are attributed to the styles of living and general eating habits. Conditions such as diabetes, depression, dymentia and even some cancers are led by bad eating habits. A friend once asked me: Now that I do not want to become obesse but want to be muscular, what will I do since I have to gain mass but I don't want to overfeed? My answer was so simple. EXERCISE
Exercise can be in many forms. The most common modes of exercise are gym and athletics. If you don't do regular exercise, your body does not find a chance to get rid of the many wastes produced by different metabolic processes. Some of these products are toxic and they lead to bad effects in the body. The effect is getting lifestyle diseases.
Exercise plays a key role in boosting your memory. During and after exercise, blood becomes more oxygenated and the supply of oxygenated blood to the brain is increased. This ensures there is renewed strength in the brain parts e.g. hypothalamous and hence boosting thinking ability.
We can not overlook the fact that exercise is fun. When exercising, you are happy and happiness makes you stay healthy.




3 0
2 years ago
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