A catalyst is a ______.

Answers

Answer 1

Answer:

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

Answer 2

Answer:

A substance that speeds up chemical reactions.

Explanation:


Related Questions

True or False: Cellular respiration is a chemical reaction that occurs in both plant and animal cells. All cells release energy from food through cellular respiration.

True

False

(This is 7th grade science).

Answers

Answer:

true

Explanation:

In the diagrams of mitotic cell division shown, which structure is present in diagram B but in diagram A?

-centriole
-cell plate
-cell membrane
-cytoplasm

Answers

Answer:

-cell plate

Explanation:

Diagram A is an animal and diagram B is a plant cell. When dividing through mitosis plant cells form a cell plate during the mitotic phase. However, cell plates are not found in animal cells, as they do not have cell walls. Therefore, the answer must be cell plate.

WILL GIVE BRAINLY IF CORRECT!!! PLEASE I BEG OF YOU I NEED HELP!!! ASAP!!!! WILL REPORT IF RANDOM! LOTS OF POINTS!!!!

Fill in the left side of the chart, with the name of the organism that is the MOST complex to LEAST complex. Then, after all the names of the organisms are on the left, match their name with the correct description of how each organism changed during its development, on the right side.

NAME OF ORGANISM -

- fish

- salamander

- tortoise

- chick

- rabbit

- human

DESCRIPTION -

- Developed limbs, defined features in face, neck, ears, loss of tail, tiny fingers present

- Developed beak, tail shorter, wings and legs developed, head quite large

- Has gills, tail and large underbelly

- Shell developed, limbs have developed, tail is thinner, large belly, long tail, beak

- Tail gone, developed limbs, detailed features in ears and mouth

- fins developed, gills, tail and scales

Answers

Answer:

most: human

2nd: salamander

3rd: rabbit

4th: tortoise

5th fish

6th chick

Explanation:

I've done this assignment.

Answer:

most: human

2nd: salamander

3rd: rabbit

4th: tortoise

5th fish

6th chick

Explanation:

hope I helped

Use the same article to examine the movement of the continents.

Theory of Plate Tectonics

Which phrase describes the movement of the continents?

only coming together
only moving apart
coming together and moving apart
not moving; always in one solid land mass

Answers

Answer:

Coming together and moving apart

Explanation:

I'm taking the assignment rn and i got it right Good Luck

Answer: third option on edge

Explanation:edge

any characteristic of a material that you can observe without change the identity of a substance that make the material is a

Answers

Answer:

Any characteristic of a material that you can observe without changing the identity of the substances that make up the material is a physical property. Examples of physical properties are color, shape, size, density, melting point, and boiling point.

Explanation:

Baking soda ant cream

list the systems found in animals (not more than five) with their constituent (not less than 2)​

Answers

Answer: proper functioning of its component cells, tissues, organs, and organ systems.

Explanation:

PLEASE HELP ME!
Some state laws prohibit utilities from charging more money for water than the cost of producing and delivering it. A 2015 ruling in California called one city's tiered pricing structure illegal because of state laws. How does the definition of "cost" affect such rulings?

Answers

probiotics by making it something

Explanation:

i

what are some examples of viruses

Answers

Answer:

Corona, Ebola, Chickenpox, Flu, Herpes, Infectious mononucleosis, etc

Explanation:

Explanation:

Plant viruses: tobacco virus.

Animal viruses: Covid-19, mumps, polio and HIV.

Mycoviruses: viruses that infect fungi.

Oncoviruses: Human Papilloma Virus which causes cervical cancer.

Bacterial viruses: bacteriophages.

Shiny objects:
Plzzzzzz helpppp

Answers

Answer:

A

Explanation:

A. Reflect a lot of light.

When a light hits on a shiny surface or an object, causing a reaction of reflecting it back.

Hope this helps, thank you !!

A long time ago, farmers discovered that if they grow the same
crops on a field, then after a few years, the crops grow more slowly. Why does
this happen?​

Answers

Answer:

Because they don't have fertilizer.

Explanation:

Well, if this was a long time ago, then farmers did not have fertilizer. So, there are bacteria on the roots of plants that convert nitrogen into a usable form. It's very important for growing, and when farmers harvest the crop, not much of the nitrogen is returned to the land, so it is not as fertile. Fertilizer is largely consisted of nitrogen, so that is why farmers use fertilizers today. But "a long time ago," farmers did not have fertilizer.

Which choice is an example of a vestigial structure?

a. Liver in humans


b. Heart in fish


c. Legs in turtles


d. Pelvic bone in whales

Answers

Answer:

a

Explanation:

youre welcome

can someone help plssssssssssss

Answers

Answer:

Distrupted

Explanation:

the main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.

Answer:

To this Extent - Distrupted

The main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.

What type of organism is pictured below? Is it a prokaryote
eukaryote?
What is it's common name?

Answers

Answer:

eukaryote hope that helps you out

Needs answers for both thanks

Answers

Answer:

The answer to the first question is A.

The answer to the second question is False.

Explanation:

An animal's fur color is like a human's skin color. If both parents are the same color, the children will have the same. If it is a mix, it will either mix the colors or just be one. So as both mice are white colored, the offspring will be white furred too.

Now for the second question. Once again, just like humans, mice inherit traits about the same. The traits from the parents will most likely carry on. There is also times where a new trait comes in. This is not very common but it happens occasionally.

What will determine whether or not mutations will be passed to offspring?

Answers

Mutations are only passed on to offspring when they occur in a germ cell DNA which are the cells that create sperm or ova...
will be inherited only if it occurred on a chromosome in either the sperm cell or the ova cell out of many that eventually unite to form a zygote

what will happen if we cover and tie a plant inside a plastic bag​

Answers

Answer:

the plant will start to wilt and then die

Answer:

it will die

Explanation:

It will suffocate and need fresh air, water, and food or nutrients to survive so therefore I come to my conclusion ;-;

HELP!!! WILL GIVE BRAINLIEST!!!

How does structure relate to the function of macromolecules? Include at least one example of how structure relates to the function of macromolecules in your answer.

Answers

The functional groups determine the shapes of macromolecules and this in turn determines their functions. ... Proteins have complex structures caused by interactions between the functional groups. A change of a single amino acid can make a major change in the function of a protein.

How is the nervous system a component of a larger system in an organism.​

Answers

Answer: The nervous system allows organisms to sense, organize, and react to information in the environment. The basic unit of the nervous system is the neuron. Synapses form between the neurons, allowing them to communicate to other neurons or other systems in the body

Explanation:

A car travels 80 miles in 2 hours. What is the average speed in mph?A car travels 80 miles in 2 hours. What is the average speed in mph?​

Answers

Answer:

40 miles/hour

Explanation:

(80 miles) / (2 hours)= 40 miles/ hour

pls help me here now?
H__V_ _UT_ Mixer​ it's a TLE subject

Answers

Answer:

ok yeah i give up imma just guess its

Harvy mixed nuts

srry if thats wrong./

The study of chemistry begins with the basic unit of matter, the ?
a. cell
b. atom
c. nucleus
d. enzyme

Answers

Answer:

B

Explanation:

Chemistry starts with the atom as this is the building block of all chemistry.

The cell, nucleus, and enzyme are all part of biology and not chemistry (at this level at least)

Answer:

B. an atom

Explanation:

Hope that helps!

The thermal energy of matter depends on its _________. a mass. b temperature. c number of particles. d all of the above.

Answers

your answer is D all of the above

what energy-carrying molecule is created in this process?

Answers

Answer:

ATP is the energy-carrying molecule produced by the mitochondria through a series of chemical reactions.

Explanation:

A strand of DNA, GCT-AAT-GAT, unzips to make mRNA. What is the sequence of the complementary mRNA strand?

A. UAG-CCG-UCG
B. CGT-TTA-CTA
C. CGA-UUA-CUA
D. GCT-AAT-GAT

Answers

Answer:

C. CGA-UUA-CUA

Explanation:

The deoxyribonucleic acid (DNA) is a double helix molecule which is composed of four letters or 'nucleotides': guanine (G), cytosine (C), adenine (A) and thymine (T). The base-pair rules state that in the DNA double helix, G always pairs with C, while A always pairs with T. Moreover, during transcription, a base named uracil (U) replaces T in the resulting RNA sequence. Therefore, in this case, the complementary sequence (i.e., antisense strand) to the mRNA sequence is CGA-UUA-CUA.

HELP MEEEEE!!!! ILL GIVE YOU BRAINLIEST IF YOUR CORRECT

Answers

Answer:

The brain and the spinal cord

Explanation:

The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.

What is the relationship between genes, traits and proteins?

Answers

Answer:

Genes are transcribed into mRNA, the mRNA is then translated into proteins, which determines specific traits.

Explanation:

because i used brainly

Present one example of a human activity that threatens
ecosystems and biodiversity.

Answers

Answer:

One example is overpopulation. Meaning the more people there are in a place, the more room there needs to be. This then leads to deforestation, destroying animals habitats forcing them to leave. The more animals that leave, the less animal diversity there is.

How is the number of organisms in a population related to the things they need to live, grow, and reproduce?

Answers

if the population/number of the things they need decrease, so will the number of the organism

The first organisms on Earth were most like today's
O Autotrophs anaerobic
O Eukaryotes
O Protista
O Heterotrophs aerobic

Answers

Answer:

O Autotrophs anaerobic

hope it will help you

Comparing the remains of modern species to fossils in search of common ancestry.

Answers

Evidence of Evolution
Other Questions
Anyone know this answer! This is due in 30 minutes Carbon dioxide is produced by the human body throughO combustionO respirationO photosynthesisO decomposition here is my question (GIVING BRAINLIEST!!)How does the Bill of Rights ensure people's rights are protected if they are being arrested?A) Only the state governments can issue warrants.B) People must be told what they are being charged with.C) People can be arrested without proof as long as the trial is quick.D) Crimes committed on behalf of the government can't go to court. busca diez vocablos que sean ejemplos de spanglish How do the three branches work together to protect society? What are economic wants?needsthings you cant live withoutincomedesires that can be satisfied by consuming goods, services or other leisure activities Similar polygons have corresponding sides that are proportional and corresponding angles that are - A congruent B parallel C similar D proportional True or False:Houston, Texas received approximately 2 inches of snow on February 15, 2021. Based on this, we can now say Houston's climate consists of long, freezing winters and yearly snowfall. Please answer ASAP. Thanks PLEASE HELP, WILL MARK BRAINLIEST write an equation of the line that passes through (-2,0) and is perpendicular to the line y = - 1/3x + 3. someone please pass the answers to this 2. nous / commencer / les problmes de maths3. vous / rencontrer / des amis / au / lyce4. Hlne / dtester / travailler5. tu / chercher / un cours/ facile6. lves / arriver / avec / des dictionnaires 90 X 2 please help will give brainliest Please help! Thank you... 3 Which of the following is NOT an example of radiant energy?Group of answer choicesThe light from the sun.The heat from a fire.The light from a light bulb.The energy in a ball as it is falling. Find the magnitude of the sum of two vectors; A is 5 km , and B is 7 , when the angle btween them is 120 Please show work :) thanks for the help. I have no clue how to do 1,2,4,5,6 I know 3 is correct. i dont get this- its due tmrw Act one Romeo and JulietWho is the he in line 112: But he that hath the steerage of my course / Direct my sail!?a. Mercutiob. Benvolioc. Cupid or Loved. Fate or God