Why is the Petri dish a good place to grow bacteria?

Answers

Answer 1

Answer:

Cheap and great environment/nutrients

Explanation:

Petri Dishes are filled with nutrients and a bacteria specific surface to promote quick and visible grow


Related Questions


Penny writes a word equation to describe photosynthesis. Which of the following is correct?
A Carbon dioxide and water combine and produce sugar and oxygen.
Nitrogen and carbon dioxide combine and produce oxygen and sugar.
Oxygen and sugar combine and produce nitrogen and carbon dioxide.
Sugar and oxygen combine and produce carbon dioxide and water.

Answers

Carbon dioxide + water -> glucose and oxygen

So, the answer would he 'A carbon dioxide and water combine and produce sugar and oxygen'.

Hope this helps! :)

what orgamisim will develop pharyngeal arches

Answers

The first, most anterior pharyngeal arch gives rise to the oral jaw. The second arch becomes the hyoid and jaw support. In fish, the other posterior arches contribute to the branchial skeleton, which support the gills; in tetrapods the anterior arches develop into components of the ear, tonsils, and thymus.

13. A discount retail store gives a 8% discount
to senior citizens. If a customer who is a senior
citizen wants to purchase an item that costs
$34.50, what is the final cost after the discount
is applied?

Answers

Answer:$31.74

Explanation:

Which of the following is the best example of an open system?
A. a vacuum bottle
B.An Anthill
C. A sealed Box
D.The moon

Answers

Answer:

B.) An anthill

Explanation:

trust me

Define Hydrophilic. Which part of the membrane is
hydrophilic?

Answers

Answer:

Cell Membranes

Phospholipids are amphiphilic, meaning they are both attracted to water in one region of the molecule, and repel water in other regions. The head of the phospholipid molecule is the hydrophilic region. The tails are the hydrophobic region, and point inward, toward each other.

Explanation:

Answer:

The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer. As shown in the diagram below, each phospholipid molecule has a head and two tails. The head “loves” water (hydrophilic) and the tails “fear” water (hydrophobic).

Use the image to complete the statements.
The aluminum atom
electrons to form an ion.
The ion that is formed is
Aluminum atom
Aluminum ion

Answers

Answer:

Loses

Positive

Explanation:did it on edge

Answer:

loses, and positive.

Explanation:

Notice the progression of the green and blue dots over time. What statements below describe what is happening

Answers

Answer:

The blue and green molecules are small and polar and can diffuse through the lipid bilayer

Explanation:

The plasma membrane is made up of a double layer of phospholipids. This arrangement permits the movement of small polar molecules by diffusion. However, larger molecules or ions need to pass through membrane channels or be carried over by active transport.

The Fluid that surrounds the organelles is....

chloroplast


vaculoe


cytoplasm


cell wall

Answers

The answer is Cytoplasm

Which type of mutation adds one or more base pairs?

Answers

Answer:

Insertions

Explanation:

Because they are mutations that use extra base pairs and insert them into a new place for the DNA, when a section of DNA is lost, A insertion fills it in.

_CH, + __ 02 → _ CO2 +.
H2O

Answers

Answer:

combustion reaction

What is a rift valley

Answers

a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems.

Answer:

a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems.

Explanation:

A student incorrectly measured the volume of a mineral sample as 83 cubic centimeters when
the actual volume was 89 cubic centimeters. What was the student's approximate percent
deviation (percentage of error)?
1.
6.7%
2.
7.2%
3.
9.3%
4.
14.8%

Answers

Answer:

1. 6.7%

hope it helps <3

The percentage deviation in the student's calculation is 6.74%.

We have a student who incorrectly measured the volume of a mineral sample.

We have to determine student's approximate percent deviation.

How to calculate the Percentage deviation ?

In order to calculate percent deviation , subtract the true value from the measured value, then divide by the true value, then multiply by 100.

According to the question -

Measured volume (M) = 83 cubic centimeters.

Actual Volume (A) = 89 cubic centimeters.

ΔV or [tex]$\delta[/tex]V = M - A = 83 - 89 = - 6

Therefore -

|Percentage deviation| = [tex]\frac{\delta V}{A} \times 100[/tex] = - ( [tex]\frac{6}{89} \times 100[/tex]) = - 6.74 % = 6.74%

Hence, the percentage deviation in the student's calculation is 6.74%.

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How many kilometers are equal to 1 light year

Answers

Answer:

9.461e+12

Explanation:

Answer:

i think 9.461e+12

Cells contain specialized structures called organelles that have specific functions that enable the cell to carry out life
processes. Organelles work together to perform all the functions of the cell. Which of the choices is the BEST example of
how the cell membrane and chloroplast might work together to make food in a particular cell?
A In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast uses nutrients to make energy (ATP)
for the cell.
B. In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by
photosynthesis.
C. In animal cells, the cell membrane allows materials in and out of the cell, while the chloroplast uses nutrients to make energy (ATP)
for the cell.
Din animal cells, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by
photosynthesis.

Answers

Answer:

B. In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by

photosynthesis.

Explanation:

The choice that represents the best example of how the cell membrane and chloroplast might work together to make food in a particular cell is as follows:

In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by photosynthesis.

Thus, the correct option for this question is B.

What is a Cell membrane?

A cell membrane may be defined as a type of biological membrane that significantly separates the internal environment of the cell with respect to its outer one. It is semi-permeable in nature. It means that some molecules, ions, or compounds can easily diffuse across the lipid bilayer while others are not.

The movement of materials in and out of the cell is typically facilitated by the cell membrane. While in plants, the chloroplast is a membrane-bound cell organelle that has green pigments that captures light energy from sunlight and convert it into chemical energy in order to synthesize food (glucose) that provides them energy for metabolic activities.

Therefore, in a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by photosynthesis. Thus, the correct option for this question is B.

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very confused,, help .

Answers

6 could be like an orange because it’s very acidy but 7 could be banana because it’s more of a dry fruit

HELP PLEASE! WILL GIVE BRAINLY! Identify the following cell.

A. Prokaryote, because it has a nucleus

B. Eukaryotic, because it has a nucleus

C. Prokaryotic, because it lacks a nucleus

D. Eukaryotic, because it lacks a nucleus

Answers

The answer is c, it has no nucleus, prokaryotic cells have free floating dna
C. Prokaryote

Eukaryote cells have a nucleus that stored DNA. Prokaryote cells have no nucleus and the DNA is in the cytoplasm.

what is the G1 phase of mitosis and what happens during this phase?


actually environmental science own words please need it now.

Answers

Answer:

G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. In G1, cells accomplish most of their growth; they get bigger in size and make proteins and organelles needed for normal functions of DNA synthesis. Here, proteins and RNAs are synthesized, and, more especially the centromere and the other components of the centrosomes are made.

Explanation:

Which is one benefit that mangrove trees provide to surrounding coastal wetlands?

Answers

If I'm not mistaken, the Mangrove Trees filter the water for small sharks, manatees, fish, and other animals and plants living in the murky area.

Answer:

They hold solid in place

Explanation:

Just took it

2. Use evidence from the diagrams of macromolecules and information provided earlier to revise your explanation about whether sugar molecules provide all the elements needed to make the four types of macromolecules.

Answers

Answer:

No - they do not contain nitrogen which is needed to make proteins and nucleic acids (sometimes lipids)

Explanation:

The four types of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

Sugars are carbohydrates, and contain carbon, hydrogen, and oxygen.

Lipids contain carbon, hydrogen, and oxygen, and sometimes other elements like nitrogen and phodphorus.  

Proteins contain carbon, hydrogen, oxygen and nitrogen.

Nucleic acids contain carbon, hydrogen, oxygen, nitrogen, and phosphorous

List the following liquids in order of how fast they evaporate, from slowest to fastest.
NaOH, Acetone, Ammonia

Answers

Answer:

Acetone, Amonia, NaOH

Explanation:

Explain in your own words how the Cell Theory is an example of a scientific theory.

Answers

Explanation:

Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

Hope this works

What factors challenge the stability of an organism?i

Answers

Answer:

Abiotic factors.

Explanation:

Abiotic factors such as temperature and humidity etc challenge the stability of an organism by providing the harsh environment. This harsh environment disturbs the stability of the organism. Increase in temperature and very less or high humidity imbalance the enzyme activity which disturbs the whole functioning of the body of organism. So for chemical processes in the body, suitable temperature is required.

Consider what you already know about scientific design. To set up an experiment testing whether students’ grades are affected by their level of exercise, which factors do you think you would need to keep in mind? Check all that apply. student gender type of exercise amount of exercise what grades are measured how long the experiment will last what time of day the students exercise how much time the students spend studying

Answers

Answer:

All of them can be correct

Explanation:

Answer:

All answers are correct

Explanation:

Roseanne has grown a few green chilli plants in her backyard. Is she growing a crop? Give reasons for your answer

Answers

Answer:

I do not think she is growing a crop.

Explanation:

A crop generally means a huge amount of a type of food. Corn, Soy, Bananas, ETC. She is merely tending a garden not a big crop like a whole cornfield.

Roseanne has grown a few different green chilli plants in her backyard. She is not growing a crop.

What is a Crop?

A crop is a plant which can be grown and can also be harvested extensively for the purpose of profit or subsistence. When the different plants of the same kind are cultivated at one place on a very large scale, it is called as a crop. Most crops cultivated in agriculture or hydroponics.

Green chillies are the plants which need a warm, sunny spot for the best results. Ideally, green chillies grow in a greenhouse or can be raised in the pots on a south-facing patio or windowsill.

Roseanne has grown a few green chilli plants in her backyard. She is not growing a crop as it is not a wide scale production of the plant.

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which of the following is a function of the cell wall?

A. Detoxify lipids
B. Provides rigidity
C. Produces protein
D. Packages protein


(hurry please!!!)

Answers

Answer:

answer is provided rigidity

______________________

What is one of the reasons why Gregor Mendel chose to study pea plants?
A. They exhibit only a single trait.
B. They produce flowers
C. They grow very slowly
D. They reproduce sexually

Answers

Gregor Mendel chose to study pea plants is - D. they reproduce se-x-ually

Gregor Mendel's study of pea plantIn Gregor Mendel's work on pea plants, he discovered the fundamental laws of inheritance.Pea has characteristics with two observable formsthey have a small life cyclePea plants reproduce se-xually only

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loria’s doctor diagnoses her with hepatitis B, which is a viral infection. Which body system will fight this infection?
A.
respiratory
B.
integumentary
C.
immune
D.
digestive
E.
circulatory

Answers

C. The answer is immune system

Answer:cccc

Explanation:

A cell and it's environment have the same amount of dissolved solute. Both solutions are hypertonic
True
False

Answers

I believe the answer is false

The young woman's refusal to "tell others" about the deal triggers a question about what would be accepted by coworkers. Politically savvy. Socially responsible. Environmentally responsible. Customary activity.

Answers

Answer:

What would be accepted by coworkers.

Accepted by coworkers is the correct option.

Explanation:

The young woman's refusal to "tell others" about the deal triggers a question about what would be accepted by coworkers because her actions will determine what others will think about the issue, their ideaologies and what actions they might take.

If her refusal to tell others about the deal does not in one way or the other affect other Co workers negatively, the coworkers might accept it in a negative way and if it's affect them positively,they might accept it positively. The co-workers acceptance about the whole issues will be what they feel and their decision is and this can trigger actions.

The young woman's refusal to "tell others" about the deal triggers a question about what would be: Socially responsible.

Who is a Socially Responsible Person?

A socially responsible person is one that has a duty to act in the best interests of the organization or community that he represents. In organizations, confidentiality is often valued.

So, the fact that the young woman did not tell others about the deal shows that she is socially responsible.

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tadpoles lose their tails as part
of their life cycle. At a certain
stage in development, the
human fetus acquires individual
fingers and toes. What occurs
in some cells of both species
to explain these changes?

Answers

Answer:

Apoptosis (programed cell death)

Explanation:

Apoptosis is a type of controlled cell death. It happens throughout development when cells have to be removed. It also gets rid of diseased cells, such as those that are potentially cancerous, or those infected with a pathogen, for example.

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