A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It adheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little poptidoglycan. This bacterium's ability to survive in a human who is taking penicillin pills may be due to the presence of
A) gram-negative cell wall
B) peptidoglycan in the cell wall
C) lipopolysaccharides in the cytoplasm
D) long polypeptides in the cell wall

Answers

Answer 1

Answer:

the correct answer would be b

Explanation:


Related Questions

carbon continuously cycles through the biosphere, changing forms. Which of the following statements accurately describes the movement of carbon?

Answers

Answer:

A

Explanation:

Maybe b but most likely A.

iodine 131 has a half-life of 8 days. if the amount of iodine 131 in a sample is 8 g how much iodine 131 will remain after 32 days?

Answers

Answer:

4g?

Explanation:

Not really sure but pretty sure.

Mothers may be encouraged to breastfeed their newborn babies. The first milk that a mother
secretes is called colostrum and contains antibodies.
(i) Name the cells that produce antibodies.

Answers

Answer:

Lymphocytes

Explanation:

Groundhogs inhabiting a meadow environment drink water and rely on plants, including clover, for food. Which of the following terms describe both the water and the clover that the groundhogs consume? Choose the two that apply.
A. limiting factors
B. abiotic factors
C. biotic factors
D. resources

Answers

The following terms describe both the water and the clover that the groundhogs consume are:

Abiotic factors Biotic factors

What are the factors that affect population size?

The 2 main aspects affecting denizens growth are the birth rate and death rate .

People development may also be impacted by people coming into the population from someplace else or leaving the residents for another region.

Thus, option "B" and "C" is correct,  Abiotic factor and Biotic factors.

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In a density-dependent population, an increase in which of the following will most likely lead to an increase in population density?

Birthrate
Carrying capacity
Death rate
Emigration

Answers

Answer:

birthrate

Explanation:

In a density-dependent population, an increase in birthrate will most likely lead to an increase in population density. So, the correct option is A.

What is population density?

Population density is the number of people in a given area of land. It primarily applies to people, yet occasionally it also does to other living things. That is a crucial geographic phrase. The amount of people who live in an area per square kilometer, or even other unit of land area, is referred to as population density.

We must divide the population's number by the area's size to determine the population density. Population Density is therefore equal to the number of people divided by the land area. Square miles or square kilometers should be used as the measure of land area. If we need to calculate the density of a relatively small place, then can use square feet or meters.

Therefore, the correct option is A.

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if a woman is found to have damage to both of her ovaries, can the woman still get pregnant?

Answers

Answer:

It depends on how bad the damage is

Explanation:

Which pond would most the most likely to lead to terrestrial succession?
A) Pond A
B) Pond B
C) Pond C
D) Pond D

Answers

Answer:

pond d because u know what a turtle can leave in pond fish can live also other aquatic animal but a bird can't kive so it will die in water for a long time and will not be able to survive and it will cause terrestrial succession

The pond that should be most  likely to lead to terrestrial succession should be considered as the pond d.

What is terrestrial succession?

In terms of terrestrial ecosystems, the succession should arise either at the primary or the secondary succession. here the primary succession should be the type of succession where it arise at the time when the area should experience the disturbance.

Also it does not have the survival of the original species

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Describe the pathway of an air molecule entering from the nose.

Answers

Answer:

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.Jun

Explanation:

Viruses change at a very fast rate Can you use this information to explain why vaccines against a specific virus don't last forever ?

Answers

Viruses can multiply very quickly, and so they can go through natural selection at a much quicker rate, allowing certain vaccine resistant mutations to take over a population.

3. Which structure protects the developing embryo of a beech tree?
A. cotyledon
B. cuticle
C. seed coat
D. stomata

Answers

Answer:

Seed Coat

Explanation:

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Surface winds is the answer.

Answer:

ocean currents

Explanation:

the ocean stores solar radiation and distributes heat

PLEASE HELP PLEASE HELP
is it C. or not if not what is is DO NOT EXPLAIN

The following image shows two jet streams in the Northern Hemisphere. The polar jet stream carries cold air. The subtropical jet stream carries warm air.


Image courtesy of NOAA/NWS

In the summer, the polar jet stream is usually north of the United States. In the winter, the polar jet moves down, often past the place marked with an "X".

How will the weather at point X change as the polar jet moves from north of it to south of it?
A.
It will get warmer.
B.
The winds will change direction.
C.
It will get cooler.
D.
The weather will stay the same.

Answers

Answer:

it will get cooler

Explanation:

it will get cooler

Genes contain the information needed to make _____ that form our traits.

Answers

Ans: Most genes contain the information needed to make functional molecules called proteins. (A few genes produce regulatory molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell.

does anyone know what the answer is??!

Answers

Answer:

no i don't know the answer

Answer:

thank you brown green brown green red yellow extra teeze

Explanation:

8. Two heterozygous purple flowered plants are crossed.
What percentage of the offspring are purple?
white?

Answers

Answer:

75% chance of purple, 25% of white

Explanation:

Heterozygous means having two different alleles of a gene

This must mean they are Purple dominant and white recessive

This will be represented as Pw

[tex]\left[\begin{array}{ccc} &P&w\\P&PP&Pw\\w&Pw&ww\end{array}\right][/tex]

This, called a punnet square, calculates the probability of the gene outcome. The top Pw represents one parent and the Pw on the left side represent the other.

In the diagram, each combo of letters ( PP, Pw, Pw, ww ) represents a 25% of what gene the offspring will have. PP  means it'll be purple, and so does both Pw's. ww means white flowers though because there is no dominant trait and only recessive. This is the only way for a recessive trait to appear in a child.

Therefore there is a 75% chance of the offspring having purple flowers and a 25% chance of the offspring have white flowers.

The oldest crust on the ocean floor is found in the center of the mid-ocean

True or False

Answers

Answer:

true

Explanation:

Answer:

False

Explanation:

The oldest parts of the oceanic crust are in the Mediterranean Sea.

Drag each label to the correct location on the image.
identify the parts of the male reproductive system on the diagram
epididymis
testis
urethra
vas deferens
prostate gland
seminal vesicle

Answers

Answer in the picture below.

Genetic diversity is the raw material for evolution.
True or False

Help please :(

Answers

The answer is True.
The raw material for all evolutionary change is variation in the genes and hence the phenotype of every individual organism.

do number 7 pls and thanks

Answers

Answer:

Keiko can put 144 blocks in the box. If you find the volume of the box, that is the number of blocks you can fit in the box. I found the volume by multiplying the length, width, and height together.

tRNA is responsible for interpreting the mRNA codons and bringing amino acids to the ribosome, in a word this process is known as:Required to answer. Single line text.
(2 Points)

Answers

Answer:

translation

Explanation:

fjdodkfksldmfnsks

CO2 has been referred to a greenhouse gas because it acts to trap the sun’s heat on our planet like the grase in a greenhouse traps the sun’s heat in the room. what does the graph indicate is the relationship between global tempratures and CO2 concentration

Answers

Answer:

a. As CO2 increases, the temperature also increases.

Explanation:

Carbon dioxide (CO2) is an atmospheric molecule produced naturally via respiration or artificially via burning of fossil fuels. CO2, as rightly stated in this question, has been referred to as a greenhouse gas because it acts to trap the sun’s heat on Earth.

Logically, an increase in the amount of greenhouse gas like CO2 released into the atmosphere means an increase in the greenhouse effect or global warming (increase in global air temperature). However, according to the GRAPHICAL REPRESENTATION in this question, an increase in the ppm concentration of CO2 led to an increase in the temperature (°F) of the globe over the years.

As depicted on the graph, at a CO2 concentration of 390ppm, the relative temperature was at over 1°F.

I need help what are plantea and animalia?

Answers

Answer: These organasims are both eukaryotic cells, so these 2 cells are capable to produce food by their own. The Plantae include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. An animalia is one of the basic groups of living things that comprises either all the animals or all the multicellular animals, you can compare that to the plantae or protista.

Explanation:

how does the respiratory system deliver oxygen to the circulatory system?​

Answers

Answer:

The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

Explanation:

brainliest pls

6. The largest lymph vessel is the
a. Lumbar trunk
b. Thoracic duct
C. Lymphatic duct
d. Intestinal trunk

Answers

Answer:

B. thoracic duct

Explanation:

I hope this helps

Which profession would YOU most likely see in your high school?

A. Counseling psychologist
B. Psychiatric social worker

Answers

Answer:

A

Explanation:

Which statement about air is correct?

Answers

Answer:

Air is essential for all organisms

Second one and djdjdjfjffjfjff

If a specific kind of protein is not continually used by a cell, the gene for that protein is _________________________.

Answers

Answer: what are the answer choices?

Explanation:

Answer:

The gene for the protein is turned on and off at different times.

Explanation:

The turning on and off of the gene is described as gene regulation. This process is important because it enables the cells to react quickly to the changes in the environment.

Note that , this process mostly occur at transcription level during gene expression , and help in determining the amount of protein made by a gene.

wich of the organic compounds (necessary for all living things) are responsible for storing and transmitting genetic information?


A.5-Carbon Sugar

B. Nucleic Acids

C. Phosfate groups

Answers

Explanation:

As I think ,Nucleic Acids is correct one.YOU CAN THINK ABOUT DNA.

What is the relative humidity when the dry- bulb temperature is 16°C and the wet-bulb temperature is 14°C?

Answers

Answer:

The answer is 80%.

Explanation:

The relative humidity will be 80 %.

What is relative humidity?

The amount of water vapor in the air, represented as a proportion of the highest quantity of water vapor the air could contain simultaneously temperature, was known as humidity levels, referred as relative humidity.

Calculation of relative humidity.

It can be calculated as:

Relative humidity = Actual vapor / saturation vapor density × 100

Relative humidity = 14 / 18 × 100

Relative humidity = 0.7777 × 100

Relative humidity = 77%.

Therefore, the relative humidity will be 77 %.

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PLEASE HELP!! BIOLOGY
Which of the following is NOT an element in the process of natural selection?

a
Individuals struggle for survival.
b
Organisms cause environmental change.
c
Fitness with your environment can lead to an increase in your population.
d
Genetic variation exists within a species.

Answers

Answer: what I learned is that natural selection needs 4 things

Explanation:

over production    

genetic variation

i don’t remember the rest but those are the main ones so that there’s lots of offspring in case some cant survive

HOPE I HELPED

The answer for this question is GENETIC VARIATION!!!
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