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faltersainse [42]
3 years ago
5

Which bird is best adapted to survive in an environment dominated by seed-bearing plants?

Biology
1 answer:
dangina [55]3 years ago
7 0

Answer:

hummingbirds

Explanation:

Over many generations, hummingbirds have evolved beaks that are long, thin and well adapted to reach into flowering plants and extract nectar

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Neurons are surrounded by ________, which guide neural connections and clean up after neurons send messages to one another.
erma4kov [3.2K]
The particles that surround the neutrons are ELECTRONS
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3 years ago
Plasmodium is an organism with both sexual and asexual life cycles. Describe the most likely cause of a heritable phenotypic cha
hjlf

Answer:

Mutation.

Explanation:

Mutation in the organism's DNA that is passed on to the offspring is that main cause of heritable phenotypic change in some members of a population that reproduces asexually. Repeated exposure of Plasmodium that is sensitive to artesunate strain to increasing dosage of artesunate led to the development of resistance in plasmodium because the genetic mutation occur in the plasmodium that provide resistance against artesunate.

3 0
3 years ago
_______provides information on the structure of a purified protein based on its nuclear spin properties in a magnetic field, whe
NemiM [27]

Nuclear magnetic resonance provide information on the structure of a purified protein based on its nuclear spin properties in a magnetic field, whereas X-Ray crystallography uses diffraction pattern of protein in solid phase.

Explanation:

Nuclear magnetic resonance is a spectroscopic technique that involves change in nuclear spin energy in presence of an external magnetic field. It is based on the absorption of electromagnetic radiation in the radio-frequency region.

X-Ray crystallography is a method of determining the arrangement of atoms within a crystal.This technique is based the fact that when a beam of X-ray strikes a crystal, the beam gets diffracted. From the angle and intensities of diffraction a three-dimensional structure of electron density can be determined .

3 0
3 years ago
Why is it important for some reactions to be reversible?
Anuta_ua [19.1K]

Answer:

The binding of oxygen and hemoglobin is also an important reversible reaction. Its how oxygen is carried around the blood to the cells of your body

Explanation:

A reversible chemical reaction is one that can go in both directions; reactants can turn into products, and products can turn back into reactants.

6 0
3 years ago
Describe how caffeine can affect your stress level.
Gala2k [10]

Answer:

Caffeine is used often to wake you up, making you more alert. This can lead to anxiety or paranoia

Explanation:

The effects Caffeine has on your body can be those of a traumatic event. It stimulates your fight or flight response.

Hope this helped:)

3 0
3 years ago
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