When testing the effect of penicillin on the growth of E. coli, penicillin would be considered the? A.independent variable B. dependent variable C. constant

Answers

Answer 1
A. It’s the thing you change and you’ll measure the E. coli growth

Related Questions

how population growth rate, generation time and carrying capacity affect the population growth of each species over the short term (30-50 generations) and long term (100 generations)

Answers

The population, the more of the population, it may affect the environment they are in. The amount of the population may affect how many resources the population has because it can run out.- long term
Short term:
If the population rate grows in a really quick time the population won’t have enough time to obtain a sustainable lifestyle. I think.

PLEASE HELP!!!!!!!!!! EARTH AND SPACE SCIENCE!!!!!!!
Which statement correctly identifies Old Faithful and explains how it formed?

It is a caldera formed from a vent collapsing.
It is a mud pot formed from pools of boiling, acidic mud.
It is a volcanic neck that formed as a result of magma that never erupted.
It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Answers

Answer:

It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Answer: d. It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Explanation:

NEED HELP NOW PLEASE

Answers

Answer:

"shown on the opposite page"

Explanation:

put that picture too

EXPLAIN two ways in which a leaf can adapt to maximize of photosynthesis.

Answers

Answer:

"Large surface area for maximum light absorption. The presence of chlorophyll containing chloroplast. Thin structure Short distance for carbon dioxide to diffuse into leaf cells."

Answer:

Photosynthesis is made possible by the adaptations of the leaf, which include a large surface area for optimum light absorption and the existence of chlorophyll-containing chloroplasts.

Explanation:

The two ways are in bold letters:)

An airtight, temperature-controlled glass box containing actively growing tomato plants was placed under a light source. Plastic wrapping that only transmits green light was placed over the box, and two days later air samples from inside the box were collected and analyzed. The most likely change in air quality is:

Answers

The most likely change in air quality is a decrease in carbon dioxide (CO2) present in the box.

Photosynthesis is the process by which green plants produce their own food in the presence of light and carbon dioxide. The most important indicator of air quality is carbon dioxide. This gas is removed during photosynthesis.

This implies that after two days, analysis of the air samples from the pot will definitely indicate a large decrease in the amount of carbon dioxide present in the box.

Missing parts;

An airtight, temperature-controlled glass box containing actively growing tomato plants was placed under a lightsource. Plastic wrapping that only transmits green light was placed over the box, and two days later air samples frominside the box were collected and analyzed. The most likely change in air quality isa. an increase in nitrogen (N2)b. an increase in carbon dioxide (CO2)c. an increase in oxygen (O2)d. a decrease in carbon dioxide (CO2)

Learn more: https://brainly.com/question/8646601

Una boya está anclada al fondo del océano. Una gran ola se acerca a la boya. ¿Cómo se moverá la boya a medida que pase la ola?

Answers

Answer:

lentamente con la ola

Explanation:

In the general population, 1 in 300 individuals is a carrier for Tay-Sachs disease, while 1 in 30 individuals of Ashkenazi Jew descent are carriers. Tay-Sachs also affects 1 in 30 individuals with French-Canadian ancestry, although two completely unique mutations are responsible for the Ashkenazi and French-Canadian mutations.
A) What are the chances of two individuals having a child with Tay-Sachs if both individuals are not of Ashkenazi or Franch-Canadian descent?
B) What are the chances of two Individuals having a ¢hild with Tay-Sachs lf one Individual Is of Ashkenazi descent and one ls not?

Answers

No I don’t know this question

In the general population where  1 in 300 individuals is a carrier for Tay-Sachs disease, while 1 in 30 individuals of Ashkenazi Jew descent are carriers. Tay-Sachs also affects 1 in 30 individuals with French-Canadian ancestry then in this condition , 1 in 2 will get the disease that is there is 50% possibility.

What type of disease is discussed in the question ?

It is an autosomal recessive disorder.

The chances where the two two individuals having a child with Tay-Sachs if both individuals are not of Ashkenazi or Franch-Canadian descent is 25 % that is the child will not have any disease.

The chance where  the child inherits a mutated one  from one parent and becomes a carrier, but will not have  the condition themselves. 1 in 4 (25%) chance that means  the child inherits a faulty gene from both parents and develops Tay-Sachs disease.

Learn more about Tay- sach disease at :

https://brainly.com/question/14134577

#SPJ6

the middle primary brain vesicle, the mesencephalon, gives rise to which adult brain structure?

Answers

The midbrain

The term mesencephalon means "midbrain." As it develops from a primary brain vesicle to a secondary brain vesicle and finally an adult brain structure, it retains its name--the midbrain.

100!!! Points
Part A
Tectonic plate movement is the reason why northern California has a very different landscape than southern California. Two different tectonic plates, each moving in different directions, border the western side of the North American Plate. Use the map to identify the two tectonic plates that border the North American Plate to the west.

map of the world's major and minor tectonic plates


Part B
On the map, take a close look at the boundary along southern California and Mexico’s Baja California Peninsula. The arrows on the map show the direction and speed of the plates along this boundary in millimeters per year. Based on the speed and direction of the arrows, identify the type of plate boundary at this location. Which landforms or events are likely to occur there as a result? (Hint: It may be helpful to model the motion of the plates using your hands or pieces of paper.)

a map of North America with the fault lines marked

Answers

Answer:

Where's the map?

Explanation:

Is there something missing? I don’t fully understand m

Which part of the cell does this illustration represent?


Calvin cycle center


mitochondria


cytoskeleton


endoplasmic membrane system

Answers

Answer:

Mitochondria

Explanation:

The mitochondrion is an organelle found in both animal and plants cells. However, it is not found in prokaryotic cells. The mitochondrion is most famously known as the powerhouse of the cell because it produces ATP. The defining visual feature of mitochondria is the wavey-like pattern within the organelle.

How many pairs of spinal nerves do you have?

Answers

Answer:

b. 31

Explanation: is correct

Predict how many different mRNA sequences could code for the following amino acid sequence plus a stop codon: Met-Trp-Cys-(Stop).

Answers

Answer: 6

Explanation:

This is because the Met and Trp are coded by one codon, Cys is coded by two different codons, and Stop is encoded by three different codons. Therefor, 2x3=6.

When mRNAs are being translated simultaneously by multiple ribosomes, the structure is known as a(n) polytene. polyribosome. polycistron. operon. copolymer.

Answers

Answer:

polysomes or polycistron

Explanation:

when multiple ribosome attach to single mRNA

Which of the following statements correctly describes genes?

Answers

Answer:

Genes are made of DNA and are carried on chromosomes

Explanation:

How does evaporative cooling work biology.

Answers

The necessary heat of evaporation is extracted from the sweat itself, which leads to a heat transfer from the liquid into the gaseous state. This results in a cooling effect (called evaporative cooling) that helps to maintain body temperature and cools the body down when it gets too hot.

PLEASE FILL THIS OUT PLEASEE I'LL GIVE A BRAINLIEST IF YOU WANT

Answers

Answer:

The third one is monoeye leggatros, the first one is multieye armituou, the last one is multieye ituous, and the second one is monoeye gastros!!

Explanation:

they’re not in order, but these are the correct answers :))

Help with the question in the red box please

Answers

Answer:

It Must be D

Explanation:

Not sure how to explain

NEED HELP ASAP
Select ALL the correct answers. Which statements about tsunamis are true? Group of answer choices:
Coastal areas are safe from them.
Underwater landslides can cause them.
Earthquakes can stop them from causing flooding.
They are less destructive than typical wind-caused waves.
They are powerful ocean waves.

Answers

Answer: The Answer's are A( They are powerful ocean waves) B(Underwater landslides can cause them)

Explanation: I Got it correct on my test!

(A) They are powerful ocean waves.

(B) Underwater landslides can cause them.

Plato :)

any one interested in revising Biology nutrition in animals?​

Answers

Answer:

yes...let's do it am interested

Answer:

yeah I am interested in revision

Why are there so many ways to impact enzyme activity.

Answers

Answer:

Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.

Explanation:

2
What is the JOB of the cell membrane?

Answers

To protect and organize cells.

Nearly all forests in ________ have been cut at least once during the past 300 years, so very little original (virgin) forest remains.

Answers

Answer:

In the United States.

Explanation:

It doesn't have very many original forests because people have been chopping them down and planting new ones.

Match each part of the neuron with the correct label.

Answers

Answer:

yes. those are labeled correctly

Explanation: post protected

this is correct it is labeled correctly!

A bacterium is inoculated into a tube of nutrient broth and incubated. After incubation, it appears turbid throughout, top to bottom, with the most amount of turbidty at the very top. This bacterium would be called a:

Answers

Answer:

facultative anaerobe

Explanation:

Answer:

Can I guess the answer just give me a sec

What are organelles.

Answers

Organelles are specialized structures that perform various jobs inside cells.

Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.

There are two types of reproduction, sexual and asexual Sexual reproduction involves two parents, while asexual reproduction only involves one,
Sort the reproductive processes below according to whether they are asexual or sexual.
ITEM BANK: Move to Bottom
Creation of an egg
Creation of fruit
Mushrooms producing spores
Production of seeds
Stem cuttings of plants
Sexual
Asexual
Budding in yeast
drag and drop answer here
drag and drop answer here

Answers

Answer:

Creation of egg- Sexual

Creation of fruit - Sexual

Mushrooms producing sporea - Asexual

Production of seed - Sexual

Stem cutting - Asexual

Budding in yeast - Asexual

Which stage of the cell cycle is represented by the '?' in the diagram? *

Captionless Image
cytokinesis
meiosis
fission
budding

Answers

Answer: the answer is cytokinesis

Answer:

Cytokinesis

Explanation:

cytokinesis is the correct option.

HOPE THIS ANSWER HELPS YOU DEAR! TAKE CARE

I am thinking of an animal that kind of looks like a raccoon, and starts with an A. With just that information: what is the common name for that organisim.

Answers

Armadillo is the first thing that comes to mind

Answer:

Armadillo

Explanation:

at what point during meiosis do homologous chromosomes pair up?

Answers

Answer:

Prophase 1

Explanation:

In prophase 1, homologous chromosomes pair up and exchange sections of DNA in a process called crossing over.

Explanation: Pairing of homologous chromosomes occur during prophase 1. This is also known as synapsis. During synapsis there is crossing over too.

if a dna strand has the nucleotide sequence of CCGAGTTG, what is the nucleotide sequence of the complementary strand

Answers

Answer:

i dont know

:>

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A corporation recently sold zero-coupon $400 bonds maturing in 4 years with an annual yield of 12%. Find the price. [Hint: The price is the present value of $400 4 years from now at the stated interest rate.] (Round your answer to the nearest cent.) What's the meaning of morphological in swine? How many carbon dioxide molecules and water molecules are needed to make one molecule of glucose? what is the ratio of the average distances that oxygen will diffuse in a given time in air and water Why are proteins not found in the proximal convulated tubule over the river and through the wood"" is from a poem about which holiday? what did harriet beecher stowe believe about slavery Choose the sentence that is written Incorrectly.James Webb is a former Secretary of the Navy who has written a book about his experiences.The manager maintained that the customer is always right.Entering my neighbor's home and being impressed by the beautiful furnishings.I would like to go camping this weekend instead of studying. The sports stores price went up in 2013 a bat that cost $45 in 2012 now cost $55 what is the percent of change Which statement describes the motion of the ice particles in the ice/water bath between minutes 5 and 20?Choose the correct answer.Particle motion stays the same because temperature does not change.Particle motion stays the same because the ice is not completely melted yet.Particle motion increases because thermal energy is being transferred to the ice.Particle motion decreases because thermal energy is being transferred away from the ice. Please tell me what the Point Slope Slope Intercept Standard is for these graphs what is the value of x? (3x-1) which statement describes the Democratic Party during Andrew Jacksons presidency? the girl threw the clay balls into the bucket of water tap the word that "they" refers to a. birds b. frogs c. feets help me with this guys Select the correct answer from each drop-down menu.The graph of g(x) is shown.The graph of h(x) = g(x + 5) has and . A biologist observed a population of bacteria that grew at a rate expressed by the exponential equationf(t)=256e(0.0611t)where t is in minutes. How long will it take the population to reach 5 times its initial value? 2. Choose the coordination option that correctly joins the two sentences below: An alligator's snout is rounded, or U-shaped. A crocodile's snout is pointed, or V-shaped. A. An alligator's snout is rounded, or U-shaped; a crocodile's snout is pointed, or V-shaped. B. Both revised sentences are correct. C. Both revised sentences are incorrect. D. An alligator's snout is rounded, or U-shaped; in contrast, a crocodile's snout is pointed, or V-shaped. PLEASE HELP WITH THIS