Why would you use sodium hydrogen carbonate in an investigation

Answers

Answer 1

Answer:

Investigating photosynthesis. The effect of light intensity on photosynthesis can be investigated in water plants. ... Sodium hydrogen carbonate - formula NaHCO 3 - is added to the water to supply carbon dioxide - a reactant in photosynthesis - to the plant.

Explanation:

hope this helps


Related Questions

why not test for pathogens like salmonella directly rather than use an indicator organism such as a coliform?

Answers

Indicator organisms are organisms that are utilized to detect the presence of another organisms that cannot be easily identified.

We do not test for pathogens like salmonella directly but use an indicator organism like coliform because these pathogens are not easily isolated and they are much harder to identify.

Pathogens like salmonella are not tested for directly because they are much lower in numbers when found in wastes or waterbodies and to identify them directly is expensive.

Also testing directly for these micro-organisms is very expensive and non-viable. So it is better to use indicator organisms to detect their presence.

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True or False: Cardiac muscle is also known as smooth muscle.

Answers

Answer:

FALSE

Explanation: post protected

what is the difference between volume measurements and capacities

Answers

Volume measures the amount of air for one function while capacity is any two or more volumes.

Arteries have high blood pressure
and are fairly deep in your body.
What is the function of the
arteries?
A
delivering OXYGEN-RICH blood to the body
В.
delivering OXYGEN-POOR blood back to
the heart
Using Alternative
Server
All Rights Reserved.

Answers

Answer:

A. Delivering Oxygen-rich blood to the body.

Explanation:

I hope this helps!

Answer:

a. delivering oxygen - rich blood to the body

Explanation:

Arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.

Inside an active mitochondrion, most electrons follow which pathway?.

Answers

Answer:

Citric Acid Cycle

Explanation:

Which statements accurately describe the pharmacokinetic parameters of oral conjugated equine estrogens (CEEs)

Answers

The parameters are near complete absorption, high protein binding, and high distribution, extensive metabolization of tamsulosin, and exit of the substance through the urine, as shown in options 1,3,4, and 5.

We can arrive at this answer because:

Oral conjugated equine estrogens are medications taken orally when prescribed by a qualified practitioner.These medications are made with a mixture of several types of estrogens that resemble each other in some way.They are widely used to treat osteoporosis and other common problems in women.

One of the main characteristics and advantages of this type of medicine is that its excesses are eliminated in the urine. In addition, they are easily absorbed by the body, are highly distributed, easily bind to proteins, and are easily metabolized.

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Someone help please 20 points

Answers

Answer:

2

neutral

hydroxide

a) hydronium

hydroxide

b) Hydroxide

hydronium

3

pH

14

a) neutral

acidic

basic

b) pH

tenfold

C

1) indicator

2)indicator

solution

pH

3) meter

..............BRAINLIST. ........... :)

What might cause birds in Population A to immigrate to the island?​

Answers

Answer:

The change in the climate would have made the birds migrate

Explanation:

help 4-6 pls!!??!!!!!!!!!!!!!!!

Answers

Answer:

Hopefully this is correct!! Not sure...

Explanation:

4) D

5) A

6) C

D, A, C are the right answers, I think

Explain how a father with brown eyes and a mother with blue eyes can have children
with either brown or blue eyes. Remember to use complete sentences and correct
grammar.

Answers

Answer:

Brown eyes are a dominant trait.

Explanation:

Brown eyes are a dominant trait, and blue eyes are a recessive trait. If the father has brown eyes, they can have either a BB or Bb genotype; the mother must have a bb genotype in order for her eyes to be blue.

Refer to the Punnett Square below to see how it's possible for this mother and father to produce children with both colored eyes.

Homeostasis is an organism's ability to _______. a. obtain energy from food b. interact with its specific environment c. maintain a constant internal environment d. survive without water for long periods of time

Answers

Answer:

C. Maintain a constant internal environment

Explanation:

Homeostasis is keeping an internal environment stable.

which part of the flower or needed to make seeds?​

Answers

Answer:

Ovary is the part of the flower which is needed to make seeds

HELP NEEDED ASAP! 30 POINTS AND BRAINLYEST TO WHOEVER ANSWERS WITH THE BEST ANSWER! What are 3 examples of gene therapies that are used to treat diseases?

Answers

Answer:

Viruses used in gene therapy are retroviruses, adenoviruses, adeno-associated virus, herpes simplex, and vaccinia. Retroviruses are most commonly used because they can incorporate their genetic material into the host cell’s DNA, thus changing the genetic component of that cell.

Explanation:

Gene therapy is a medical field which focuses on the genetic modification of cells to produce a therapeutic effect or the treatment of disease by repairing or reconstructing defective genetic material. The first attempt at modifying human DNA was performed in 1980 by Martin Cline, but the first successful nuclear gene transfer in humans, approved by the National Institutes of Health, was performed in May 1989. The first therapeutic use of gene transfer as well as the first direct insertion of human DNA into the nuclear genome was performed by French Anderson in a trial starting in September 1990. It is thought to be able to cure many genetic disorders or treat them over time.

Gene augmentation therapy.

Gene inhibition therapy.

Killing of specific cells.

I think this is what you want but i'm only 14 and in 10th so sry if its not

what organelle do both plant and animal cells have that control all of the activities that take place inside of a cell?

Answers

Answer:

the nucleus

Explanation:

Height in humans is a polygenic trait with a distribution similar to the graph shown. Which is true concerning the distribution of height in human populations?(1 point)


Most individuals will be below average height.

Most individuals will be at the extremes of height.

Most individuals will be of average height.

Most individuals will be above average height.

Answers

Answer:

Most individuals will be of average height.

Explanation:

Just took it and got 100%.

1. Which statement best describes a polygenic trait?

-A polygenic trait is controlled by multiple genes and influenced by the environment.

2. IQ is determined by:

-multiple genes and environmental factors

3. Which statement best describes trait distribution?

-Distribution describes how the variation in traits is spread across a population.

4. Which statement is true?

-Mendelian traits cannot be shown on a bell curve.

5. Height in humans is a polygenic trait with a distribution similar to the graph shown. Which is true concerning the distribution of height in human populations?

-Most individuals will be of average height.

Hope this helps have a good day and happy holidays!! ^^

button. Tests are automatically saved in case of internet disruption.
Language: English Español
6)
A student observes a cell under a microscope. The cell contains chromosomes that show up inside of a nucleus surrounded by an
envelope. Based on the infon nation here, the student was able to determine whether the cell was prokaryotic or eukaryotic. After
making the distinction, the student could assume the cell came from certain cell types. From which potential organism(s) was this
cell-derived? Select ALL that apply.
A)
plant cell
B)
animal cell
fungal cell
D)
bacterial cell
E)
methanogenic Archaea cell
2

Answers

The answer is d your welcom

The potential organism was derived from plant cell, animal cell and fungal cell.

Cell nucleus

The cell nucleus is the largest organelle found in the cytoplasm and it is present only in eukaryotic cells. It is in the nucleus that the chromosomes carrying the genes responsible for controlling cellular activities are found.

Whit this information, we can conclude that the potential organism was derived from plant cell, animal cell and fungal cell.

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What is the structure of the forebrain that connects the two hemispheres of cerebrum?

Answers

Answer:

c. Corpus callosum

Explanation: is correct

Answer:

corpus callosum

Explanation:

right on test

The presence of which type of intercellular connections between endothelial cells of brain capillaries results in the blood–brain barrier?.

Answers

The answer is right junctions

4. Arrange Write the following steps in the order in which they occur during glycolysis

A six-carbon molecule is broken down into two three-carbon molecules.

Two NADP molecules are converted into two NADH molecules.

Two phosphate groups from two ATP molecules are joined to glucose.

Two three-carbon molecules are converted into two Folecules of pyruvate as four
molecules of ATP are produced.

Answers

The correct order of glycolysis reactions is:

Two phosphate groups from two ATP molecules are joined to glucose.Two NADP molecules are converted into two NADH molecules.A six-carbon molecule is broken down into two three-carbon molecules.Two three-carbon molecules are converted into two molecules of pyruvate as four  molecules of ATP are produced.

During glycolysis, the glucose molecule is converted to Glucose-6-phosphate as a result of phosphorylation. The phosphate group from ATP is joined to the glucose molecule by an enzyme known as hexokinase.

The glucose-6-phosphate then undergoes isomerization to become fructose-6-phosphate which is then phosphorylated again by the hexokinase enzyme to become fructose-1,6-biphosphate.

An aldolase enzyme converts fructose-1,6-biphosphate to one molecule of glyceraldehyde-3-phosphate and one molecule of dihydroxyacetone phosphate. The latter is then converted to another molecule of glyceraldehyde-3-phosphate.

A dehydrogenase enzyme converts glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate with NADH being generated from the reduction of NAD+.

A kinase enzyme then converts 1,3-bisphosphoglycerate to 3-phosphoglycerate with ATP being generated from ADP. A mutase enzyme quickly converts the 3-phosphoglycerate to 2-phosphoglycerate while an enolase enzyme converts the latter to phosphoenolpyruvate.

Finally, a pyruvate kinase enzyme converts phosphoenolpyruvate to pyruvate with another ATP being generated.

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Which law regulates pesticides and herbicides? a. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) of 1947 b. Federal Investigation of Fungicide Act (FIFA) of 1947 c. Clean Environment Act of 1949 d. Regulatory Environment Act of 1948

Answers

The law that regulates pesticides and herbicides in the USA is the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) of 1947. This law prohibits the use of certain compounds as pesticides.

The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) law is a regulatory law that provides a suitable federal regulatory framework for the use, distribution and sale of pesticides.

This law (FIFRA) is aimed at protecting pesticide users, consumers, and the environment.

The pesticides used in the USA must be licensed by the US Environmental Protection Agency (EPA).

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The mitochondria are defective and do not produce sufficient protein to synthesize microtubules in the cilia and flagella.

Answers

Answer:

The mitochondria are defective and do not produce sufficient protein to synthesize microtubules in the cilia and flagella. The plasma membrane of the alveoli is not permeable to carbon dioxide during respiration because it is too hydrophobic. The cells do not produce functional motor proteins in flagella and cilia.

18. In pea plants, the seed coat can be green or white. Green is dominant over white.
Construct your own Punnett square that involves one white parent in which 50% of the
offspring can be predicted to have green seed coats.

Answers

Aa * aa

⇒ 50% Aa (Green)

⇒ 50% aa (White)

66
Chapter 6 Discussion
nts
This discussion will require you to do an experiment with a friend or a member of your family. This experiment is
suggested by Stanley Coren and his associates to demonstrate Weber's law (Coren, S., Ward, L., & Enns, J.T. (2003)
Sensation and perception (6th edition) New York: Wiley.)
et
You need three quarters, two envelopes, and a pair of shoes (preferrably heavier than a tennis shoe).
1. Place one quarter in one envelope and the remaining two quarters in the other
2. Have the person lift each envelope and tell you which is heavier
3. Have the person go away or turn around, and then place each of the envelopes into separate shoes
4. Have the person lift each shoe and tell you which is heavier
urces
. What were your results?
• Why?
• What was at work here?
• Describe how this principle might impact other areas of our everyday lives.
• Give at least three specific examples.
Respond to at least one other classmate.

Answers

Deeeeeeeeeee e e e e e e e e e e. E e we. De. E e e e ee

This experiment shows that people often associate weight with quality. That is, the heavier it is, the better it is. This experiment proves that this thinking is illogical.

How may this experiment help in business?

Because man is a rational being who is not consistently logical or rational, it  may help to ensure that ones product of good quality and heavier than that of the opposition.

Recall that people often make decisions that are irrational as long as they are happy with it.

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which is not an abiotic factor that could affect a population?

Answers

Answer:

it is not the abiotic power my beautiful kind sir

Explanation:

How did the new island in the Pacific Ocean near the Vava'u Islands form? See below
for a picture of the new islands and for the location on earth.

Answers

Answer:

They were created from the subduction of the western-moving Pacific plate under the Australia-India plate at the Tonga Trench. The Tongan Islands sit on the Australia-India plate just west of the Tonga Trench. These volcanoes are formed when materials in the descending Pacific plate heat and rise to the surface.

Explanation:

The new island in the Pacific Ocean near the Vava'u Islands forms as divergent plates allow magma to come to the surface at this location. The correct option is a.

What are Vava'u Islands?

Vava's island is a group of islands that contain one large island and 40 smaller islands. They are present in the Tonga region.

They were formed as a result of the subduction of the Australia-India plate beneath the western-moving Pacific plate at the Tonga Trench.

West of the Tonga Trench on the Australia-India plate is the Tongan Islands. When elements in the descending Pacific plate heat up and rise to the surface, volcanoes like this are created.

Therefore, the correct option is a. divergent plates allow magma to come to the surface at this location.

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Name the following:
The cell that covers a large area and is broad and flat in shape.​

Answers

Answer:

skin is the answer please and brainlest pleaaasssseeee

Which of the following statements is characteristic of proteins?

Answers

Answer:

c. Proteins are the building blocks of the body.

Explanation: is correct

C) proteins are the building blocks of the body

How was Dr. Martin Luther King , Jr. , an important force in creating a more just world ?
Evidence and reasoning plz

Answers

Martin Luther King, Jr. worked hard to bring greater equality to America and ensure civil rights for all people, regardless of race.

Pocket gophers change the nitrogen cycle in prairies because they:

Answers

Sheeeeeeeeeeeeeeeeeeeeeeeeeeeeesh

excess volatiles is found in the ___ and atmosphere

Answers

Answer:

excess volatiles

Answer:

Excess volatiles is found in the oceans and atmosphere.

Not sure if its correct but hope it helps!!

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