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Furkat [3]
3 years ago
15

What is an abstract?

Biology
1 answer:
EastWind [94]3 years ago
4 0
An abstract is a summary of the most important points in a scientific paper so scientists can keep up to date and know what the scientefic work says with out spending lots of time reading it.

Check out the article below for more information.
Ebert, James R. "WHAT IS AN ABSTRACT." WHAT IS AN ABSTRACT<span>. N.p., n.d. Web. 06 Mar. 2016.</span>

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Why do organisms found at low temperature have membrane proteins with a higher percentage of alpha helices compare to beta sheet
Art [367]

Answer:

Protein is the important biomolecule that acts as building block of the protein. Proteins are inserted into the biological membrane and consists of transmembrane and integral membrane proteins.

The alpha helices and beta sheets are present in the bio membrane. The organism living at low temperature has high alpha helices and low beta sheets because alpha helices has high mobility, less rigidity and makes enzyme active at low temperature.

5 0
4 years ago
What are good sources of unsaturated fats?
Marrrta [24]

Answer:

Saturated Fats, Here are 10 high-fat super foods that are actually incredibly healthy and nutritious.

Explanation:

1. Avocados:

Avocados are a fruit, with fat at 77% of calories. They are an excellent source of potassium and fiber, and have been shown to have major benefits for cardiovascular

2. Cheese:

Cheese is incredibly nutritious, and a single slice contains a similar amount of nutrients as a glass of milk. It is a great source of vitamins, minerals, quality proteins and healthy fats.

3. Dark Chocolate:

Dark chocolate is high in fat, but loaded with nutrients and antioxidants. It is very effective at improving cardiovascular health.

4. Whole Eggs:

Whole eggs are among the most nutrient dense foods on the planet. Despite being high in fat and cholesterol, they are incredibly nutritious and healthy.

5. Fatty Fish:

Fatty fish like salmon is loaded with important nutrients, especially omega-3 fatty acids. Eating fatty fish is linked to improved health, and reduced risk of all sorts of diseases.

6. Nuts:

Nuts are loaded with healthy fats, protein, vitamin E and magnesium, and are among the best sources of plant-based protein. Studies show that nuts have many health benefits.

7. Chia Seeds:

Chia seeds are very high in healthy fats, especially an omega-3 fatty acid called ALA. They are also loaded with fiber and minerals, and have numerous health benefits.

8. Extra Virgin Olive Oil:

Extra virgin olive oil has many powerful health benefits, and is incredibly effective at improving cardiovascular health.

9. Coconuts and Coconut Oil:

Coconuts are very high in medium-chain fatty acids, which are metabolized differently than other fats. They can reduce appetite, increase fat burning and provide

10. Full-Fat Yogurt:

Real, full-fat yogurt is incredibly healthy.

It has all the same important nutrients as other high-fat dairy products.

But it’s also loaded with healthy, probiotic bacteria, that can have powerful effects on your health.

Studies show that yogurt can lead to major improvements in digestive health, and may even help fight heart disease and obesity.

Unfortunately, many of the yogurts found on store shelves are low in fat, but loaded with added sugar instead.

It is best to avoid those like the plague.

4 0
3 years ago
The percentage of blood composed of erythrocytes is called __________.
yan [13]

Answer: Erythrocytes also known as Red blood cell compose about 40-45% of blood

Explanation: 40-45% of the blood volume is erythrocytes i.e the red blood cell. It contains heamoglobin a special protein that carries oxygen to the lungs.

8 0
3 years ago
Scientists originally thought cell membranes evolved before RNA. However, recent evidence suggests RNA developed before the memb
Darya [45]

Answer:

The need for replication, specialization, compartmentalization is key to understand that RNA evolved first

Explanation:

Logical contrast considering a certain catalytic activities of cardinal importance in the early evolution of life ;

• using an RNA molecule that is involved in to catalyzing the process of templated polymerization –selecting a random RNA molecule as a template.

• the ribozyme activity in this process must have engaged an in vitro process in a body part that no longer has a function such that it that can only synthesize moderate lengths of RNA

• when this molecules acts on the copies of itself can replicate

• when it acts on copies of other type of RNA molecules in its surrounding he can promote their replication

• a cooperative system might have evolved from the neighbors to help the survival of this friendly RNA molecules – through catalytic actions, such that a set of different types of RNA molecules evolves with a mark of specialization for different activity.

The development of individual compartments is proposed to be akin to the effective self-replicating systems.

• If RNA molecules are mutually beneficial they may serve the purposes of being specialized for templated polymerization.

• If these RNAs were free to diffuse among a large population of other RNA molecules, they could be assimilated into an established group by other replicating systems, which in turn may compete with the original RNA system for raw materials.

• The quality of the self-replicating systems they generated relies on the compartment that restricts the RNA molecules only to the system they serve.

• compartments started simply and perhaps had simple adsorption on surfaces or simple particles.

• compartmentalization became complex requiring a class of small molecules with varying physicochemical properties liike being amphipathic.

• This gave rise to the phospholipids mainly and the present-day cells often are coated by a plasma membrane consisting of amphipathic molecules in this configuration.

3 0
4 years ago
Three things every organism on earth need to survive
nikklg [1K]
1 air
2 water
3 food
4 temperature
5 sunlight
6 shelter
8 0
3 years ago
Read 2 more answers
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