A molecules is defined as what?

Answers

Answer 1

Answer:

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance. Several methods of representing a molecule's structure.

Explanation:

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Related Questions

What is the use of insulin in the body?

Answers

Answer:

The pancreas responds by producing insulin, which allows glucose to enter the body's cells to provide energy. Store excess glucose for energy. After you eat — when insulin levels are high — excess glucose is stored in the liver in the form of glycogen.

Explanation:

Which phrase describes transmutation?(1 point) the conversion of protons to neutrons through nuclear changes the conversion of one substance to another through chemical changes the conversion of an atom of one element into a different element through nuclear changes the conversion of energy to matter through chemical changes

Answers

Answer:

B

Explanation:

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Transmutation is conversion of an atom of one element into different element through nuclear changes.

Transmutation consists of the conversion of stable nuclei into other nuclei if they are bombarded by fast particles.

Specifically, an atom can be transmuted by making particles or atoms collide with it at high speed, that is, to accelerate a particle is to increase its speed by some mechanism that imparts energy to it.

Thus, the transmutation of an element requires that there be a change within its nucleus, and in particular in the number of protons.

The neutrons or protons must have enough energy to overcome the nuclear forces that prevent their passage or exit from the nucleus of the atom to be transmuted.

Therefore, we can conclude that transmutation is conversion of an atom of one element into different element through nuclear changes.

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what are the names of the membranes that cover the brain and spinal cord

Answers

Three layers of membranes known as meninges protect the brain and spinal cord.

which does not maintain the health of your endocrine system?

Answers

Answer:

Getting 5 hours or less of sleep every night.

Explanation:

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according to the induced fit hypothesis of enzyme catalysis, _____.

Answers

Answer:

the binding of the substrate changes the shape of the enzyme's active site

Explanation:

According to the induced fit hypothesis of enzyme catalysis, the shape of the active site of an enzyme changes in response to the binding of a substrate molecule.

What is induced fit hypothesis of enzyme catalysis?

The active site, which is the region of the enzyme that interacts with the substrate, adjusts its shape to fit the substrate more snugly. This change in shape enhances the formation of the enzyme-substrate complex, leading to more efficient catalysis and faster reaction rates.

The induced fit hypothesis suggests that the active site is not a rigid structure, but rather, is flexible and dynamic, adapting to the substrate to optimize the reaction.

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what is the difference between smooth and rough er?

Answers

rough er are flattened spaces while smooth er are tubular

rough er have ribosomes attached to its outer surface while smooth er does not

rough er plays a part in protein synthesis, while smooth er synthesises fats and steroids, and also detoxifies harmful substances

What type of evidence does cosmic background radiation provide about the origins of the universe?

It supports predictions of the composition of the early universe.

It pinpoints the size of the original universe.

It verifies that the early universe was once extremely hot.

It proves that the universe is expanding.

Answers

Answer:

it verifies that the early universe was once extremely hot.

Answer:

it verifies that the early universe was once extremely hot.

Explanation:

Why do endemic species have a greater risk of becoming endangered than widespread species?​

Answers

Answer:

Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people, (5) declining ..

If the measures of two angles of a triangle are 91 and 11°, what is the measure of the third angle?
HERR
The measure of the third angle isº. (Simplify your answer.)

Answers

Answer:

If I understood your question in the right way, 78°

Explanation:

Cuz, the sum of all 3 internal angles of a triangle is 180°.

180°=91°+11°+x

180°-(91°+11°)=x

78°=x

true or false? a haploid organism has one pair of homologous chromosomes.

Answers

Answer:

False

Explanation:

A haploid has one SET of homologous chromosomes

It is false that a haploid organism has one pair of homologous chromosomes.

What are haploid organisms?

When an organism's cells only have one set of chromosomes, the organism is said to be haploid.

All organisms that reproduce are diploid (having two sets of chromosomes, one from each parent). Only the egg and sperm cells in humans are haploid.

Male ants, bees, and wasps are haploid organisms because they develop from unfertilized haploid eggs, whereas females (workers and queens) are diploid, making their system haplodiploid. The majority of animals are diploid.

The term "diploid" describes how many complete sets of chromosomes there are in each cell of an organism: diploid cells have two entire sets.

On the other hand, haploid organisms only have one complete set of chromosomes. Throughout meiosis and sporadically in mitosis, chromosome sets can change.

Thus, the given statement is false.

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how do you know that the gene being transcribed in the animation is in a prokaryote?

Answers

Answer: The initiation of transcription involves a sigma factor

Explanation:

quizlet

after the blood leaves the heart, through what kinds of vessels and in what order does the blood move?

Answers

Answer: the pulmonic valve, into the pulmonary artery and to the lungs.

Explanation:

The HACCP system begins when the food is
and ends when the food is
Answers
А
thawed and cooked
B
delivered to the store and served to the Guest
prepared and served to the Guest
D
delivered and prepared

Answers

Answer:

What is B-  delivered to the store,  prepared and served to the Guest.

Explanation:

The HACCP system begins when the food is delivered to the store and served to the guest.

How HACCP system works?

HACCP : hazard analysis critical control point.

It is a management system that addresses food safety through analysis and control of biological, physical and chemical hazard.

There is a working flow of HACCP that ensures food safety begins from raw material production, procurement, handling, to manufacturing, distribution and consumption of the finished food product.

Hence, it can be said that HACCP system begins when food is delivered to the store and served to the guest that is consumption of the final product.

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What is evaporation?​

Answers

Answer:

When liquid turns into vapor

Explanation:

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A liquid turning into a gas is evaporation. It is how water gets from the surface of the Earth to the atmosphere.

Temperature, surface area, wind speed, and humidity affect a liquid's evaporation rate.

Latent heat is a form of energy held in the evaporated water when it evaporates and cools.

Most of the air's moisture evaporates from rivers, lakes, seas, and oceans. Water at the surface of the Earth evaporates into water vapor, which rises into the sky and forms clouds, which eventually release water back onto Earth as precipitation.

Suppose you remove the rabbits, grasshoppers, birds, and mice ( the herbivores) from a food web that also includes grass, mushrooms, lizards, and hawks. Which organisms would be affected and how?

Answers

If you remove the herbivores from a food web that also includes grass, mushrooms, lizards, and hawks, the organisms that would be affect are lizards, and hawks.

A food web shows all the possible feeding relationships in an ecosystem. Recall that there is an interconnection between organisms which involves exchange of matter and energy through feeding relationships.

In the food web, the grass is the producer, the herbivores are the primary consumers and the carnivores are the secondary consumers. These secondary consumers eat the primary consumers.

Lizards eat grasshoppers and hawks eat birds. When these are removed from the food web, the Lizard and Hawk are most affected because they will starve owing to lack of prey.

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What contribution did Theodor Schwann make to the cell theory?

Answers

Answer:

In 1838 Matthias Schleiden had stated that plant tissues were composed of cells. Schwann demonstrated the same fact for animal tissues, and in 1839 concluded that all tissues are made up of cells: this laid the foundations for the cell theory.

what is the first layer of hair that is cut by scissors when receiving a hair cut?

Answers

Answer: the guide?

Explanation:

Cuticle is the first layer of hair that is cut by scissors when receiving a hair cut.

What do you mean by cuticle?

The cuticle is a layer of clear skin located along the bottom edge of your finger or toe. This area is known as the nail bed. The cuticle function is to protect new nails from bacteria when they grow out from the nail root.

A cuticle is a hydrophobic boundary layer on the outer surface of primary aerial organs. Its presence is a common feature of all vascular and some non-vascular plants.

The cuticle plays an important role in nail health. They provide protection for the tissue that grows new cells to build nails. As you know, your nails are constantly growing, that's why you have to keep them manicured.

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Cooler denser air produces an area of _________pressure, and moves in under rising air.

Answers

Answer:

cooler denser air produces an area of higher air pressure and moves in under rising air

Explanation:

Which one should I click ?

Answers

Answer:

the third one

Explanation:

higher concentration means more of that substance in a certain volume

What is your favorite passerifomes?
Mine is all the corvids! Specifically the steller's jay

Answers

Answer:

Mine would have to be Indian golden Oriole bird.

What do you already know about the Moon?

Answers

Answer:

the moon is

Explanation:

round

In space

a greyish color

has indentations

dry

low gravity

Which is the smallest unit of life?

Organs

Molecules

Cells

Atoms

Answers

Answer:

Cell

Explanation:

Cell is defined as the basic,structural, functional,smallest and simplest unit of life. While cell us the smallest unit of life is because if anything happens to your cell,expecially the ones the ones that controls your heart,you may die. Which is why cell us the smallest unit if life

The cell is the smallest unit of life

A plant cell is placed in a salt solution, and the following observation is recorded:

A normal plant cell is on the left. The plant cell wall is visible, and the internal structure fills the cell up to the cell wall. In the middle is an arrow pointing from left to right. On the right is a plant cell. This plant cell has a cell wall the same size as the first plant cell, but the internal structures are shrunken in comparison to the first cell.

Which answer choice describes the most likely concentration of the solution?

Hypertonic
Hypotonic
Isotonic
Osmotic

Answers

Answer:

Explanation:

a simple way to look it it is:

Hypertonic would be when the insides are shrunk (arrows point out)

Hypotonic when its full (Arrows point in)

Isotonic is at balance (arrows point out and in)

osmotic: the passage of a liquid through a membrane from a less concentrated solution to a more concentrated one (equal concentrations)

Although I'm not sure which image I'm supposed to be describing, but hope it helps you figure out the answer

The wood used for making paper is mostly made of

Answers

Answer:

Wood consists primarily of cellulose (mostly from fibers which give strength and support to the tree) and lignin, which cements the fibers together. Cellulose makes up roughly 65 to 80 percent, and lignin about 20 to 35 percent of the weight of wood.

Explanation:

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Photosynthetic organisms like grass are able to ________. Group of answer choices turn light energy from sunlight into sugars use water they take in through their leaves as a final electron acceptor use molecules in the air as a major source of carbon make all of their organic matter from organic molecules in the soil

Answers

use molecules in the air as a major source of carbon .

olfactory information is first received by which part of the brain?

Answers

Answer:

the cerebrum.

Explanation:

The movement of water across a cell membrane that does not require
energy is called what?

Answers

The movement across a cell membrane that Dosent contain energy is known as discussion
osmosis
Diffusion: the Simple and the Facilitated
We call this evening-out moving “downhill”, and it doesn't require energy. The molecule most likely to be involved in simple diffusion is water - it can easily pass through cell membranes. When water undergoes simple diffusion, it is known as osmosis.

Why is it important to know which is your dominant eye?

Answers

Answer:

IT'S JUST A LIL BETTER THAN THE OTHER EYE

NO BIG DIFFERENCE TO SAY THAT WOULD DENY WHAT I JUST SAID. HOPE THIS HELPS.

BRAINLIST ???

how does the nucleolus's structure relate to its function

Answers

Answer:

The nucleolus takes up around 25% of the volume of the nucleus. This structure is made up of proteins and ribonucleic acids (RNA). Its main function is to rewrite ribosomal RNA (rRNA) and combine it with proteins. This results in the formation of incomplete ribosomes

What are the products of the light reactions used for during in the dark reactions of photosynthesis?

Answers

Answer:

sugar molecules and other organic molecules necessary for cell function and metabolism

Explanation:

dark reaction takes place in the stroma

stroma is aqueous fluid surrounding the stacks of thylakoids and the cytoplasm

thylakoids convert light energy to chemical energy

Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane

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