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arlik [135]
3 years ago
7

The student chewed the bread and kept it in test tube and added few drops of Iodine solution​

Biology
1 answer:
sammy [17]3 years ago
8 0

Answer:  here`s your answer

Explanation:  the solution will turn blue black colour as the presence of starch in bread and saliva from the mouth the iodine reacts with it and turns it blue black

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The regional term for the forearm is _______ ;and the regional term for the shoulder blade is ________.
kirill [66]
Forearm is called the Antebrachial, while the shoulder blade is called the scapular.
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What would most likely happen to a person who is not getting enough essential amino acids in his or her diet?
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It can result in decreased immunity, digestive problems, fertility problems, lower mental alertness, slowed growth. Amino acids play many different roles in the body and the symptoms vary.
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2 years ago
Is facilitated diffusion passive or active
kirill115 [55]

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Damian here!(ノ◕ヮ◕)ノ*:・゚✧

Explanation:

Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.

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2 years ago
Which answer best explains how most scientists think that planets form? A. Large chunks of matter break off a star that collides
zloy xaker [14]

Answer: B

Explanation:

Thats what the teacher told me

7 0
3 years ago
Match the given behaviors of water with their correct rationale. Use your observations about water and the reading you have done
kap26 [50]

Answer:

Heat energy first breaks hydrogen bonds before it increases movement of water molecules - High specific heat

As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water- Ice floats on water

A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not - High heat of vaporization

Hydrogen bonds between water molecules keep the molecules "sticking together." - Cohesion

Explanation:

Water is a molecule composed of two atoms of hydrogen and one atom of oxygen. Water is a very unique substance with properties that are unexpected of a molecule its size. Some of the unique properties of water include:

Its high polar nature, High-specific heat, High heat of vaporization, the lower density of ice. One of the reason for these unique properties is strong cohesive forces between water molecules.

Cohesion: Hydrogen bonds between water molecules keep the molecules "sticking together."

Polarity: Water molecules are polar, with partial positive charges on the hydrogens, a partial negative charge on the oxygen because oxygen is more electronegative than hydrogen. As a result, water is a good polar solvent.

High specific heat: Heat energy first breaks hydrogen bonds before it increases movement of water molecules.

Lower density of ice: As water freezes, the hydrogen bonds form a crystalline lattice which keeps the molecules at a consistent distance leading to a density lesser than liquid water, therefore, ice floats on water

High heat of vaporization: A large amount of energy is needed to convert liquid water, where the molecules are tied by hydrogen bonds, to water vapor, where they are not.

5 0
3 years ago
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