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katrin2010 [14]
3 years ago
12

Actin filaments have polarity. This means that the two ends can be identified due to structural differences. The plus end is the

end to which subunits are added more rapidly. True or False
Biology
1 answer:
Naily [24]3 years ago
4 0

Answer:

True

Explanation:

Actin is a globular protein which can polymerize to form long filaments called actin filaments. These filaments are abundant in muscle cells but are also found in other places.

While polymerizing, the new actin monomers always join the existing filament in the same orientation hence the filament becomes polar. It has a barbed end and a pointed end. Barbed end is also called plus end because monomers are added to this end five to ten times faster than the minus or pointed end. As a result, the filament overall grows in the plus end direction. Hence, the given information about actin filament is true.

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In a certain population of wolves, a mutation takes place and several wolves
Valentin [98]

Answer:

According to the theory of evolution by natural selection wolves with mutations will outgrow the wolves without mutation.

Explanation:

Nature always poses challenges to the living organisms in various forms like climate change, food scarcity, natural disasters, etc. If an organism has a characteristic to survive better than the other, then they will be selected by the nature. We can also use the term fitness for this. Darwin also referred about this as reproductive fitness which means only those organisms which are fit in their environment produce more progeny and increase in number. s we can see that the introduction of mutation has added the advantage of being faster and stronger, so when it comes to competition for food the wolves with mutation can easily catch the predator than wolves without mutation. Since mutation has resulted in better adaptation to their environment they will outgrow in number.

5 0
2 years ago
Which complex carbohydrate contains only a-1,4-glycosidic linkages?
Andrei [34K]

Answer: Amylose

Explanation: Which complex carbohydrate contains only a-1,4-glycosidic linkages? Amylose (Amylose is formed from a-1,4-glycosidic linkages of glucose.)

5 0
3 years ago
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bekas [8.4K]

Answer:

Energy can not be created or destoryed but converted.

4 0
3 years ago
Consider the model of the oxygen cycle as it moves through the various spheres of Earth. One assumption we can make after analyz
Afina-wow [57]

Answer:

B)Photosynthesis releases oxygen into the atmosphere while aerobic respiration removes oxygen from the atmosphere.

Explanation:

Only option B satisfies the answer to the question.

We know that photosynthesis is the process whereby green plants manufacture their foods in the presence of carbon dioxide and sunlight. Carbondioxie in the environment is used to manufacture food in plants. The bye product of photosynthesis is oxygen gas. Oxygen gas is used for aerobic respiration in animals and is essential for their life. This way photosynthesis adds to the pool of oxygen in the atmosphere and aerobic respiration removes from the pool.

6 0
2 years ago
Read 2 more answers
What is the reason for the difference in the O2 and CO2 concentrations of inhaled and exhaled air?
r-ruslan [8.4K]

Answer:

Cells produce CO2 and use O2 thats why there is less oxygen in exhaled air bc cells used some and more CO2 bc body gets rid off extra CO2 like that

Explanation:

I hope I did't over complicate

7 0
2 years ago
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