What are 3 indicators of a chemical change?

Answers

Answer 1

Answer:

heat state change and color change

Explanation:


Related Questions

Prior do the 1600s it was believed that all living things for either plants or animals. Which of these inventions led to the development of a more detailed classification system

Answers

Answer:

The Microscope

Explanation:

Before the 1600s, every living thing was a part of a two kingdom classification system derivative of binomial nomenclature. This was proposed by Linnaeus, a Swedish Naturalist, who split all living things into either the animalia or plantae kingdom. After the invention of the microscope however, a new detailed classification system was put in order to accommodate for microscopic life. This new system recognizes the existence of 6 kingdoms: eubacteria, archaebacteria, prostista, fungi, plantae, and animalia.

How are igneous rocks classified?

A. by cooling rate

B. by size

C. by weight

D. by texture and composition

Answers

D. Texture and Composition

The Golgi apparatus is an organelle that

O is involved in the distribution of proteins.

All of the above

receives proteins and lipids from the endoplasmic reticulum.

O packages molecules made in the endoplasmic reticulum.

Answers

Answer: all of the above

I NEED HELP PLZ!!!!!!

How many things do controlled experiments attempt to test at one time?

A. 1
B. 0
C. 2
D. 3

Answers

Answer:

lol

Explanation:

Answer:

2variables are tested at one time

Once alcohol is in the bloodstream it will reach the brain in:.

Answers

Answer:

30 minutes

Explanation:

I hope its right

it can reach the brain in one minute 20% of alcohol passes through your stomach to the brain

what has the scientific name: Rania onca

Answers

Answer:

rania once

Explanation:

I'm really not sure tbh

This macromolecule is composed of carbon, hydrogen and oxygen but is not a lipid

Answers

Answer:

yah

Explanation:

What observations and evidence support the theory of evolution?.

Answers

Answer:

direct observation, the existence of homologies and fossils, and certain biogeographical patterns.

Explanation:

Fossils:
These provide solid evidence that organisms from the past are not the same as those found today, and fossils show a progression of evolution. Scientists determine the age of fossils and categorize them from all over the world to determine when the organisms lived relative to each other. The resulting fossil record tells the story of the past and shows the evolution of form over millions of years.

Molecular Biology:
Like anatomical structures, the structures of the molecules of life reflect descent with modification. Evidence of a common ancestor for all of life is reflected in the universality of DNA as the genetic material and in the near universality of the genetic code and the machinery of DNA replication and expression. Fundamental divisions in life between the three domains are reflected in major structural differences in otherwise conservative structures such as the components of ribosomes and the structures of membranes. In general, the relatedness of groups of organisms is reflected in the similarity of their DNA sequences—exactly the pattern that would be expected from descent and diversification from a common ancestor.

Which of the following will best accelerate glycogen storage after physical activity? a. a high-fat meal taken within two hours of exercise completion b. a high-carbohydrate snack within two hours of exercise completion c. a high-protein snack taken midway through exercise and another 30 minutes after exercise

Answers

Glycogen storage after physical activity will be accelerated by taking a high carbohydrate snack within two hours of exercise.

What is Glycogen?

Glycogen is a polysaccharide that forms glucose after hydrolysis has taken place.

They exists as substance which are deposited in bodily tissues and serve as a store of carbohydrates.

When one consumes a high carbohydrate snack within 2 hours of exercise, muscle tissue which are spongelike will rapidly soak up glucose from the high-glycemic carbohydrates.

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If you were to examine a sample of connective tissue cells from an adult bear and a second sample from ?
fetus (an unborn, growing offspring of a mammal) of the same species of bear, in which sample would yo
expect to find more cells undergoing mitosis? Why?

Answers

Answer:

that is a hard one let me ask someone I know 1 minute

Explanation:

Why do people with diabetes have a hard time keeping a balance blood-glucose level?.

Answers

Answer:

Due to insulin resistance, it is a bit hard for their body to naturally break down glucose(a form of sugar) like a normal body would.

A protein region with a specific function and structure is called a.

Answers

Answer:

A protein region with a specific function and structure is called a. Select one: a. conserved site.

Scrapes are
in which the skin is rubbed or scraped away.
A. avulsions
B. lacerations
C. abrasions
D. cuts
SUBMIT

Answers

C or D I’d go with C

Explain why continental drift is not an accurate description of the movement of the continents

Answers

Answer:

because the continents are not really drifting the are being pushed or pulled

Explanation:

continents are being pushed by convection currents they can also be moved by other continents

Photosynthesis is the process by which producers convert energy from the Sun into chemical energy in the form of glucose. Explain why photosynthesis is so important for ecosystems.

Answers

Answer:

Some animals feed on plants which make their food through photosynthesis, and most animals feed on animals which feed on plants so, without photosynthesis most living things may go extinct. Right from ma brain

Explanation:

PLZ give a crown

Answer:

plants are called photosynthetic autotrophs...

WHY ARE THEY CALLED PHOTOSYNTHETIC...?!? because they convert light energy (i.e. sunlight) to chemical energy (i.e. glucose) this process is called photosynthesis. The Photosynthetic formula is  6CO2 + 6H2O ---> GLUCOSE + 6O2......

WHY ARE THEY CALLED AUTOTROPHS....?!? because they make their own food by using inorganic sources that is Water and Carbon dioxide. they are fully independant from other organism. So they do not feed on any other organism for survival hence they are found on the bottom of the energy pyramid so if they wouldn't convert light energy into chemical energy all the animals would be dead because we are not autotrophs we can not make our own food by using inorganic sources we need already made organic food thats why those organisms which can not make their own food are called heterotrophs


what goes in the two blanks

Answers

Answer: decomposition photosynthesis

Explanation:

Which organism(s) between W, X, Y and Z represent a herbivore? *
W and Y
W, X, and Y
X
W

Answers

Answer:

herbivore

Explanation:

its the only one that leads with the grass

In the trophic system, herbivores are referred to as “primary consumers” since they are the first animals to consume producers. They are also the carriers of photosynthetic energy. Thus, option C is correct.

What is herbivore?

An animal that has evolved physically and physiologically to eat primarily plant matter, such as foliage or marine algae, is called a herbivore.

Herbivorous animals often have mouth parts adapted to rasping or grinding due to their diet of plants.

An animal or insect that only consumes plant material, such as grasses, fruits, leaves, vegetables, roots, and bulbs, is known as a herbivore.

Only living creatures that require photosynthesis are consumed by herbivores. Insects, spiders, fish, and other creatures are not included in this.

Therefore, herbivores are referred to as “primary consumers

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Which statement describes an event that occurs during glycolysis that contributes to the production of ATP?
A. Pyruvic acid is broken down to form carbon dioxide.
B. Oxygen molecules are broken down and converted into pyruvic acid.
C. High-energy electrons and hydrogen ions are passed to NAD+ forming NADH.
D. Carbon atoms in glucose are transferred to ADP, forming ATP.

Answers

Answer:

C. High-energy electrons and hydrogen ions are passed to NAD+ forming NADH.

Explanation:

The sixth step in glycolysis is the first of the two-energy-conserving reactions of glycolysis which results in the formation of ATP. This step involves the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate.

In the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate, high-energy electrons and hydrogen ions are passed to NAD⁺ forming NADH.

Glyceraldehyde-3-phosphate + inorganic phosphate + NAD⁺ ---->  1,3-bisphosphoglycerate + NADH + H⁺

The NADH produced in this reaction transports the high-energy electrons passed to it through the electron transport chain to produce ATP in oxidative phosphorylation.

How does carbon dioxide concentration affect photosynthesis rate?

Answers

Increasing the concentration of carbon dioxide increases the rate of photosynthesis, as there is a greater supply of it that can be used. Of course, you can only add so much carbon dioxide before the plant can’t perform photosynthesis at an any faster rate. Increased carbon dioxide concentration will increase the rate of photosynthesis until it is no longer the limiting factor in the reaction.

Answer:

An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction - and so the rate of photosynthesis generally increases until limited by another factor.

Explanation:

CO2 concentration is directly proportional to rate of photosynthesis.

CO2 is raw material for process of photosynthesis.

CO2 + H2O → C6H12O6 + O2

Increase in CO2 concentration increases rate of photosynthesis.

Decrease in CO2 concentration decreases rate of photosynthesis.

Therefore, CO2 concentration is limiting factor for rate of photosynthesis.

(A) True or (B) False: Two species of lizard with the same thermal niche could coexist in the same range.

Answers

False

Explaining: False

The statement "two species of lizard with the same thermal niche could coexist in the same range" is true.

What is species?

Species is the term that is used to classify different organisms. Species is the second last classification, which means most similar organisms are present in this classification. The traits are mostly similar in these organisms.

Two species of lizards are given the same thermal niche. So these lizards have similar characteristics of thermal niches. So these lizards can live in the same range because they can coexist. But in these organisms, there can be competition between them.

The statement can be true as it can coexist in the same range as they have a similar thermal niche. They can live in the same temperature.

Therefore, the statement is false.

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Describe the general composition/arrangement of fish muscle and connective tissues. Explain how this impacts the structure and perceived moisture of cooked fish

Answers

Answer:

The combination of a body that reduces water resistance, layered muscular structure, and sparse weakness results in a more delicate texture.

Explanation:

En una sinapsis química, cuando pasa un impulso nervioso entre una neurona y otra, la membrana de la neurona postsináptica: I. Es permeable al ión sodio Na+. II. Se hace más permeable al ión cloro Cl-. III. Aumenta la permeabilidad al ión potasio K+. Es (son) correcta (s):

Answers

ohh sorry, I don't understand it...

What is the smallest part of soil?

Answers

Answer:

Clay is the smallest particle out of soil.

Explanation:

Answer:

Clay

Explanation:

The smallest part of soil is the clay particles.


I hope it helps! Have a great day!

Muffin ^^

What is cellular respiration? Simplified please. ​

Answers

Answer:

Cellular respiration is what cells do to break up sugars to get energy they can use.

Answer:

cellular respiration is the form in which plants obtain their ATP which is energy it occurs after photosynthesis

An example of a severe disruption to an ecosystem is (1 po O repurposing a building in a downtown area O a thunderstorm that knocks down some trees o the loss of a river system due to contamination O seasonal flooding of a river

Answers

Answer:

C

Explanation:

All of these pose major danger and disruption, but most can be fixed or don't pose long-term effects. Destroying an entire water source can cause drought or death of water-dwelling species, which can affect the other parts of the ecosystem and maybe even eliminate the whole ecosystem, if not dealt with soon enough.

in years immediately following the rule of emperor Justinian, Constantinople

Answers

Became increasingly greek

Answer:

C is the answer

Place the four stages of the thylakoid reactions in the correct order starting with the first stage at the top.
Instructions
Choice 1 of 4. Chemiosmosis toggle button Chemiosmosis
Choice 2 of 4. Primary photoevent toggle button Primary photoevent
Choice 3 of 4. Electron transport toggle button Electron transport
Choice 4 of 4. Charge separation toggle button Charge separation

Answers

Excitation of photosystems by light energy, Production of ATP via an electron transport chain and reduction of NADP+ and the photolysis of water are the correct order of thylakoid reaction.

What are the three stages of thylakoid reaction?

These reactions occur within specialized membrane discs within the chloroplast called thylakoids. It consists of three steps.

Excitation of photosystems by light energy. Production of ATP through an electron transport chain. Reduction of NADP+ and the photolysis of water.

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All of the following is true of GMOs EXCEPT

A. They have increased food production
B. Only animals are modified genetically
C. They can increase resistance to disease
D. Many are concerned that the full impact of GMOs on people is not known

Answers

B. Crops are modified genetically as well

Only animals being modified genetically is not true of GMOs. Genetically

modified organisms(GMOs) usually undergo some changes to their DNA in

order to infuse beneficial trait such as size and taste, resistance to diseases

etc.

The infused trait through DNA alteration helps to increase the quality and

yield of crops thereby making them readily available for the population.

Plants and animals undergo this process and isn't restricted to animals

which makes option B the right choice.

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Fungi have an extremely high surface-to-volume ratio. What is the advantage of this characteristic to an organism that gets most of its nutrition through absorption?.

Answers

Answer: The larger surface area allows for more material to be transported through the cell membrane.

which field of study would be most useful for a person
who wants to work in
a recycling plant?

Answers

Answer:

Someon who wants to work in recycling plant is an environmentalist

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