The most likely reason there are no colonies in cultures of this species at PH 4 and at Ph 10 is that

The most likely reason there are no colonies in cultures of this species at pH 4 and at pH 10 is that the species needs neutral pH to survive, not surviving at acidic or basic pH.

Regarding pH tolerance, bacteria can be classified into three categories:

pH is the unit of measurement that describes this degree of acidity or alkalinity, measured on a scale of 0 to 14. Any pH below 7 is considered acidic and any pH above 7 is considered basic, or alkaline. A pH of 7 is neutral, which is neither acidic nor basic.

With this information, we can conclude that The most likely reason there are no colonies in cultures of this species at pH 4 and at pH 10 is that the species needs neutral pH to survive, not surviving at acidic or basic pH.

Learn more about pH in brainly.com/question/491373

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Controlled experiments include variables. Which statement describes the difference between an independent variable and a dependent variable?

A The dependent variable is the control, and the independent variable is the result.

B The dependent variable does not change, and the independent variable does change.

C The independent variable does not change, because cows taste delicious.

D. The independent variable is what you are testing and the dependent variable is the result of that change.

HELP!!! what should you use to rinse items after cleaning them and before sanitizing them

What are the three important ways in which humans differ from other animals with regard to communication systems

In order to determine the effect of muscle fatigue on the ability of students to squeeze a clothespin,
five male students did jumping jacks for three minutes and then squeezed a clothespin as many times
as possible in a minute. three other male students ran up and down the stairs for 30 seconds and then
squeezed a clothespin as many times as possible for one minute. the results of the two groups were
recorded. identify one change that could be made to the experiment to increase the validity of the
conclusion made from these results.

Why do scientist use scientific names to refer to organisms


a: common names are too complicated for scientist to remember

b:similar organisms in different areas sometimes have the same common name

c:using scientific names ensures that non-scientists do not have access to useful information about organisms

d: the scientific name tells the reader what domain the organism belongs to

Pathogenic bacteria isolated from the respiratory or intestinal tracts of humans are.

Which of the following is a scientific observation about the bird pictured
below?
Scarlet ibis
A. The pink feathers are especially beautiful.
B.The long beak helps the bird eat insects.
C.The scarlet ibis is the national bird of Trinidad.
D. The bird's features are red.

Can anyone help me with this?
Which of the following are examples of structural adaptations?
A. migration, hibernation, instincts, being nocturnal
B. body color that helps camouflage, body covering like scales, armour, thick coat of fur, beak, claws
C. making venom, secreting slime, digestive enzymes, and altering the immune system.​

Mining has only short-term effects on the Earth.
Please select the best answer from the choices provided
OT
OF

Rainfall in tropical rainforests amounts to about 10 to 14 feet per year? T or f

3. Number the steps to carry out an investigation:
Y 1. Conclusion

2. State the problem/questions
3. Make a hypothesis
4. Gather materials
5. Carry out the procedure
6. Collect Data

Which of the following is a product of the reactions that take place in a chloroplast?

PLEASE HELP THIS IS DUE SOON! I WILL GIVE BRAINLIEST
Natural Selection Virtual Lab Report

Instructions: As you complete each slide of the Natural Selection Virtual Lab Activity, please fill in this lab report with the appropriate information and data.
Title:
Include your name, instructor’s name, and the name of the lab
Objective(s):
What is the purpose of the lab
Hypotheses (there are 2):
Include both if/then statements you developed during the virtual lab.
Variables:
Materials:
The Natural Selection Virtual Lab Activity
Natural Selection Virtual Lab Report
Procedures:
The procedures are listed in Natural Selection Virtual Lab Activity. You do not need to include them here.
Data and Observations:
Table 1: Rabbits in the light-colored environment
Generation
Rate of Survival for White Rabbits
Rate of Survival for Brown Rabbits
1


2


3


4


5






Table 2: Rabbits in the dark-colored environment
Generation
Rate of Survival for White Rabbits
Rate of Survival for Brown Rabbits
1


2


3


4


5



Data Analysis:
Part 1: In your data tables, you recorded the percentage of the rate of survival for both the white and brown rabbit in both the light-colored and the dark-colored environments.
Part 2: Using your percentages in part 1, create a graph that represents the rate of survival for the white and brown rabbits in each type of environment.
Insert chart [Hint: don’t forget to consider the relationship between your data and the type of graph to best represent your data. A bar graph would be the best option to analyze this data.]
Conclusion:
Be sure to answer the following reflection questions in the conclusion of your lab report:
Were your hypotheses correct or incorrect? Why or why not?
Using Table 1, which color rabbit had the higher rate of survival in the light-colored (white) environment? Explain why this occurred.
Using Table 2, which color rabbit had the higher rate of survival in the dark-colored (brown) environment? Explain why this occurred.
What color rabbit seemed to camouflage the best in this snow habitat, and why?
Questions:
Using what you have learned from the lesson and the virtual lab activity, answer the following questions in complete sentences.
How did the colors of each type of prey affect its population size over time?
How do you predict the data would change if you continued? Explain your answer.
What traits could help a predator be more "fit" to survive in each environment? Be specific.
Describe other adaptations besides color that could affect an individual's survival.
Explain what will happen if there are not enough resources to support the individuals in a species.
This experiment tested natural selection. What could be another possible mechanism of evolution for the rabbits to evolve? Be specific.

A process that requires cellular energy to move a substance against its concentration gradient is called.

Which term describes the components of food that are indispensable to the body’s functioning and include, water, carbohydrates, fats, proteins, vitamins and minerals?.

Earth's surrounding atmosphere is part of its _______.
A) biosphere
B) food chains
C) niche
D) population

The stomach is important for both ________ and ________ digestion.

natural and mechanical

mechanical and muscular

chemical and physical

chemical and ruminant

The human body depends on food to build and maintain.

Give three reasons why chordates are different from all other animals?​

how long after the formation of earths did the first life on earths appear?

Please answer quickly

After mitosis each identical daughter cell has a complete set of:.

Plants have specialized water-transporting cells that move water from the roots up through other parts of the plant. What can you determine about these cells? A. They serve a specific function, but are not important for survival. B. They serve a general function, and the plant could survive without them. C. They serve an important specific function, and the plant could not survive without them. D. There is not enough information.

The corpse flower uses ______ putrid fragrance to attract pollinators, and ______ typically only in bloom once every six years.

Why does habitat fragmentation change ecosystems?

Select all that apply.


A. Edge species benefit and may be different than interior species.
Edge species benefit and may be different than interior species.

B. Larger animals may not have large enough areas to hunt or breed.
Larger animals may not have large enough areas to hunt or breed.

C. Interior species benefit and reproduce faster than edge species.
Interior species benefit and reproduce faster than edge species.

D. The amount of edges that the ecosystem has increases.
The amount of edges that the ecosystem has increases.

What does a chloroplast look like

The graphs below show the changes in crab color at one beach from 1950 to 1990.

The change in crab color is an example of which type of evolution?

O A. Stabilizing selection, because one crab color was preferred over other colors.

O B. Stabilizing selection, because two crab colors were preferred over other colors.

O C. Directional selection, because two extreme colors were preferred over the more moderate color.

O D. Disruptive selection, because two extreme colors were preferred over the more moderate color.

O E. Adaptive radiation, because crabs of a single color evolved to form crabs of several colors.

Usually the body needs to excrete excess acid. sometimes, however, the body is in alkalosis. in the collecting duct, there are special cells (type b intercalated cells) whose sole job is to deal with alkalosis. what would you expect these cells to do

What region of the brain is responsible for complex thinking.

During which stage of a scientific investigation is data collected?

evaluate the conclusions
conduct an investigation
analyze the results
design an investigation