explain what is meant by a ' reactant ' .​

Answers

Answer 1

Explanation:

A substance that enters into and is altered in the course of a chemical reaction.

hope are you understand

Answer 2
A thing that enter and goes out

Related Questions

What are two ways the excretory system helps the body maintain homeostasis?

Answers

Answer:

1.Osmoregulation

2.Thermoregulation

Explanation:

1.Osmoregulation is the maintenance of constant amount of water in the body of an organism.The kidney is responsible for this phenomenon as in it has a nephron in which at a particular part of the nephron,i.e the conducting tube which sites a hormone called the anti diuretic hormone which makes the walls of the conducting tube permeable to allow the movement of water from the urea back into the body before it is transferred into the bladder for to be released into the external environment.

2.Thermoregulation involves the maintenance of heat in the body of an organism.The skin is responsible for this process.It has hairs which lie on the surface of the skin to loose heat to the external environment during the hot days and also stands on the surface of the skin which trap a film of air on the skin surface to prevent heat loss in the cold days.

I HOPE IT'S OK?

Answer:

The kidneys control the amount of water, ions, and other substances in the blood by excreting more or less of them in urine. The kidneys also secrete hormones that help maintain homeostasis.

Explanation:

What adaptation do seeds dispersed through ballistochory have?
a)

sail-like structure

b)

smooth and aerodynamic

c)

hollow on the inside

d)

pleasant smell and taste

Answers

Answer:

smooth and aerodynamic

Explanation:

Seeds are usually smooth, like a baseball, so that they cut smoothly through the air and don't have a lot of wind resistance.

The adaptation that seeds dispersed through ballistochory has smooth and aerodynamic. The correct option is b.

What are adaptations?

Adaptation is a biological process that is done by many plants and animals to survive in given conditions. Adaptation is causing the partial or full change in their body or functions to match with the environmental conditions.

Plants with ballistochory means possibly ejects by the seeds full stop this adaptation or evolution happened in which seats are dispersed into many tentacles and seats are dispersed into soils for pollination this comes under wind dispersion.

Seeds launch an angle and release the elastic energy store in the fruit. These adaptations are smooth.

Therefore, the correct option is b. smooth and aerodynamic

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digestive juice that acts only on fats dash​

Answers

answer: digestive juices act on different kinds of food items and help in the breakdown.

Respective digestive juices act upon their own designated food types and help in the process of metabolism.

Lipase is one digestive juices which acts only on fat.

This digestive juices mostly catalyses the hydrolysis of fats and belongs to the subclass of esterase's


What are the basic units of a chemical element called?
A. Solids
B. Atoms
C. Molecules
D. Gases

Answers

Answer:

B) they are called atoms

atoms are the basic unit of elements

molecules are made up of atoms

What are the 2 most abundant elements found in the Earth's crust?
A. Iron and nickel
B. Carbon and silicon
C. Oxygen and silicon
D. Carbon and hydrogen

Answers

Explanation:

carbon and hydrogen

hope it's helpful and have a great day

Human Bones
Name three components of bones and describe
their function.

Answers

Answer: 1st the periostneum which is the outside of the bone and a thin but dense layer that has nerves and blood vessels

2nd compact bone. It is very smooth and very hard

3rd and lastly Cancellous, this looks a little like a sponge but much harder.

Explanation:

Answer:

The periosteum is a thin, dense membrane that contains nerves and blood vessels that nourish the bone.

Compact bone is smooth and dense. It is the hard part of the bone.

Cancellous bone looks like a sponge and protects the bone marrow.

Bone marrow is a thick jelly that makes blood cells.

Explanation:

These are the check offs for edge 2021

which of these resources can not be renewed? A. Solar B. Coal C. Wind D. Biomass

Answers

Answer:

coal

Explanation:

it is a non renewable energy source

Describe the process of germination and plant growth you observed in the lab activity for a monocot plant.

Answers

Answer:

Germination is the process by which a plant develops from a seed. The most common example of germination is a sprout of a seedling emerging from the seed of an angiosperm or gymnosperm. However, the development of a daughter spore from a spore, such as the growth of a mycelium from a fungal spore, is also germination. Therefore, germination can be understood in the general sense as anything that becomes larger from a small entity or a living organism, is a commonly used method in many seed development projects. alike.

Explanation:

Why do farmers need to know about their plant life cycle? What is the essense

Answers

Answer:

certain plants have different life cycles as for some are "evergreen" meaning that they will never die as long as they have nutrients and are in the right heat envirement. a good example of this is artichokes when planted from a seed they grow the first year and the second year they start to produce. another good example is corn it grows during certain seasons. after the season the corn is cut down and replanted next season

Explanation:

Differentiate between endangered species and extinct species (1 point 2 examples)

Answers

Answer:

Endangered: Still around but at risk of going extinct (example: tiger)Extinct: Gone forever (example: wooly mammoth)

Explanation:

An endangered species is one with a reduced population. These species can easily become extinct if all the remaining members die.

I'm always happy to help :)

What is absorbed into the blood stream in small intestine and large intestine

Answers

Small intestine absorbs water and nutrients into the bloodstream and moves waste products into the large intestine

why the circulatory system is considered to be a closed system?

Answers

Explanation:

human have closed circulatory system. this means blood is always enclosed in the vessels  and the heart while circulating throughout the body IN this type of system blood is pumped by heart through arteries and veins and does not fill the body cavities thats why the circulatory system is considered to be a closed system

Describe the direction of DNA replication. Why is that important?

Answers

Answer:

DNA replication is the process by that DNA make a copy to the cell division.

Explanation:

DNA replication is the double structure to the DNA molecule,it is biological process.DNA replication molecule the serve that template for the production to referred conservative replication.DNA replication occurs living the biological property of division and they performed complementary stand.DNA replication to that begin the specific location and origins in the genome, and growing from the origin.DNA replication is performed to the outside and artificially to the cell,in the DNA molecule.DNA replication is single strand by the DNA chain of nucleotide function, DNA contain the sugar .DNA replication is the basis of single strand to 3 prime and 5 prime  end, these refer to the carbon atom in the chain attaches.DNA replication allow the strand to the one another strand to used in partner strand.DNA replication is to matched in the template strand at one time with the creation of bonds,they high energy bonds.  

1. A government is

.when people who own their own businesses and property
.Institution through which a society makes and enforces public policies
.Institution who elects representatives
who provides goods and services that are bought, sold and used​

Answers

The correct answer is B. Institution through which a society makes and enforces public policies

Explanation:

The government is one of the most important institutions in society. The main function of this institution is to define who holds the political power, how are laws and policies created, how is a nation protected, and how to maintain the general order by enforcing laws and politics. Moreover, there are different types of government depending on who has the power and makes political decisions, this includes democracy, monarchy, aristocracy, etc. In this context, the option that best describes the government is B.

Paula has studied the effect of ultraviolet light on seed germination.
Data were collected on seeds that were exposed to UV radiation and
then allowed to germinate. Which statement is true concerning this
data? *
O UV rays help seeds germinate.
O Temperature is insignificant.
There is no control group.
UV light is toxic to seeds.

Answers

Answer:

i dont know

Explanation:

Why is the unit of velocity called derived unit?​

Answers

Answer:

Because it is a vector quantity, it has a direction too such that derived unit is made up of two or more fundamental units. That is mere and second. That is why it is called as a derived unit as its unit is metres per second.

Hope this helps...Have a good day!!

What has a greater influence on protein levels? A. Protein degradation has a greater influence because they are denatured faster than the cell can produce them B. mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced C. mRNA destroyer concentration has a greater influence because mRNA is destroyed right after the proteins are produced D. Protein degradation has a greater influence because outside factors like antibiotics can cause it, and it is difficult to recover from

Answers

Answer: b

Explanation: i got the answer wrong and i’m looking at the results rn

Protein is being produced with the help of a process called translation in which mRNA gets translated to produce proteins. The translation is followed after the process of transcription of DNA to RNA.

The cause of the greater influence of protein levels has defined as follows:

The destruction of mRNA could greatly influence protein levels as mRNA is considered the source for proteins to get synthesized. This is because if mRNA gets destroyed, proteins would not have been produced at all. Thus, directly influences the levels of protein.

Thus, we can conclude that mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced. Hence, option (b) is the correct answer.

Learn more about protein here:

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why must the composition of the dialysis fluid be similar to that of the blood​

Answers

Answer:

Because the purpose of dialysis is to mimic blood and clean the blood  because the persons kidneys dont work. If it is not similar to blood it wont work

Explanation:

Why do plant cells have chloroplasts?

Answers

Answer:

The chloroplast has chlorophyll and the chloroplasts also helps with makes photosynthesis happen. It takes the suns energy and turns it into energy for the plant. So it uses solar energy and makes chemical energy.

Explanation:

Students in a high school marine science class are learning about the scientific process. Four students were asked to write a testable prediction about cold weather and oceans. Their responses are shown in the chart.
Which student’s prediction is the most testable using the scientific process?
A) Olivia
B) Daniel
C) Raphael
D) Simone

Answers

Answer:

Daniel prediction is the most testable using the scientific process.

Answer:

Id say Olivia has the most testable one, please correct me if im wrong

Explanation:

Pillbugs are placed in a container where they have a choice of a wet or a dry environment. Researchers record how much time was spent on each side. What is the INDEPENDENT variable?

Answers

Answer: Wet or dry environment.

Explanation:

The independent variable is the variable that a researcher manipulates in an experiment in order to carry out a study on the incidence of the expression of the dependent variable. Therefore, the independent variable is the one that changes or is controlled to see its effects on the dependent variable.

Researchers can then design a container with a wet or dry environment. But it's the pillbugs that are going to choose where to go and how long to spend in each part. So the time they spend in each part is a dependent variable since that cannot be controlled by the scientists conducting the experiment. Henceforth, the researches will just record this dependent variable without controlling it. But they can decide what to put in the container to make it wet or dry environment, or whatever they want to design. So wet or dry environment is the independent variable.

Answer:the independent variable is whether the pillbugs choose a wet or dry environment. The dependent variable how much time was spent on each side.

Explanation:

Predict which of the following can impact an ecosystem's available resources?

Answers

Answer:Long term drought, change of season from winter to summer, forest fire are unfavorable environmental factors which can deplete the amount of resources already available with the ecosystem. The long term drought will be a condition in which the ecosystem will suffer from non-availability of water.

Explanation:

which type of cell(s) contain ribosomes?

Answers

Answer:

Ribosomes are found in prokaryotic and eukaryotic cells; in mitochondria, chloroplasts and bacteria. Those found in prokaryotes are generally smaller than those in eukaryotes. Ribosomes in mitochondria and chloroplasts are similar in size to those in bacteria. hope this is good enough to help you

Explanation:

3. Which plants are usually the first to grow during secondary succession?
A ferns
Blichens
Cweeds
D trees

Answers

Answer:

ferns

Explanation:

these are alsi known as conifers which require a great amount if light

Im not a science student just trying beans I guess

A garden has a length of 1.5 x102 m and a width of 0.5 x 102 m. what is the area of the garden?

Answers

Answer:

7.5 × 10^3 m^2

Explanation:

The garden described in this question takes the shape of a rectangle, which has a length of 1.5 x102 m and width/breadth of 0.5 x 102 m.

To calculate the area, we use the formula for calculating the area of a rectangle, which is;

Area = length (L) × width (w)

Area = 1.5 x102 m × 0.5 x 102 m

Area = 150 × 50

Area = 7500

This, the area of the garden is 7500m^2 or 7.5 × 10^3 m^2

What Creates local winds ?

A. As hot air sinks and cold air rises winds are formed

B. As cold air sinks and hot air rises winds are formed

C. As Precipitation falls winds are formed

Answers

Answer:

B

Explanation:

hot air rises because it is less dense and cold air sinks because it is more dense. for example if he had a balloon and it was in the freezer it would shrink however if you were to leave it out for a little while it would expand.

The thin external covering is similar to the
. The organelle with a texture like sandpaper is the
.

Answers

Answer:

The thin external covering is similar to the Cell Membrane. The organelle with a texture like sandpaper is the rough endoplasmic reticulum (ER)

ANSWER AND I’LL GIVE BRAINLIEST

Which of the following statements can you infer would happen If one organ system stopped working?
a. The other organ systems would have to work harder to make up for the broken system
b. The other organ systems would stop working too.
c. The other organ systems would still work on their own but might have to work harder to complete their function correctly.

Answers

Answer:

b

Explanation:

After one system shuts down, the others would slowly start to shut down as well until the body can no longer maintain homeostasis and the person would slowly die. 3. All systems would be working together but the main ones would be muscular, nervous, and skeletal.

Use the periodic table to complete this equation that represents nuclear fission processes.
233U+'n Ba+ C+3 'n
130
56
92
A:
B:
C

Answers

Answer:

the answer is  

A: 94

B: 36

C: Kr

The process of nuclear fission will always produce daughter nuclei and more neutrons in the process.

What is nuclear fission?

The term nuclear fission has to do with the process in which the nucleus of an atom is bombarded with a particle which makes it to breakup thereby releasing energy in the process.

The question is incomplete as the equation is not clear however, the process of nuclear fission will always produce daughter nuclei and more neutrons in the process. A has the value of 94. B is the element krypton with atomic number 36.

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Why do frogs have triangular heads?
Plz help me with this question!!​

Answers

Answer:

Aquatic frogs tend to have long, flat skulls, while digging species often have short skulls with pointed snouts, a shape that also enables them to use their mouths like chopsticks to catch small, scurrying prey such as ants and termites.

Explanation:

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