Lexi's teacher gave each person in the class several cotton swabs to test for bacteria on surfaces of various objects. Lexi tested many objects like the pencil sharpener, the dry-erase board, the doorknob, and the overhead projector. She found that the doorknob on the outside of her classroom had more bacteria than any other tested object. Which of the following questions would best help Lexi find out more information about the doorknob's bacteria? A. What color is the doorknob? B. What are the sources of the bacteria? C. Is the doorknob bigger than the other objects? D. What does the doorknob look like?

Answers

Answer 1

Answer: what are the sources of the bacteria?

Explanation:


Related Questions

If having long fur helps a guinea pig survive, what
would you expect to see change in the population
as it evolves?
DONE

Answers

The population would increase, since they live longer and more can mate and reproduce.

In a population with long fur, there will be more guinea pigs than short fur in the given scenario.

What is trait?

A trait, as it relates to genetics, is a unique feature of an individual.

If having long fur helps a guinea pig survive, we can expect the long-furred trait to become more common in the population as it evolves.

This is because guinea pigs with long fur would have an advantage in colder environments, allowing them to retain body heat more effectively and survive longer.

As a result, longer-furred guinea pigs are more likely to survive and reproduce, passing on their long-furred trait to their offspring.

As this process continues over many generations, the proportion of guinea pigs with long fur in the population will increase, while the proportion with short fur will decrease.

Thus, this can be expected to see change in the population as it evolves.

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.They are usually found in air * True False

Answers

Answer:

true

Explanation:

I hope it helps

pa brainliest po

What does the “they” stand for?

The subject of a source can best be described as themain topic or area of concern.most important idea in the text.tendency to view something in a certain way.way the source wants people to feel or think.

Answers

Answer:

main topic or area of concern.

Explanation:

An information source can be defined as a system or medium through which informations, knowledge and ideas may be gotten and used by an individual. An information source can either be a primary or secondary source of information. The source options for informations are television, radio, web, newspapers, journals, magazines etc.

The four criteria used to evaluate source options are;

1. Accuracy: the user of this source of information should check if the data presented are accurate and credible. At this point, you should ensure that the informations provided are well researched and cited for verification.

2. Authority: you should endeavor to know who the author and publisher of the information source is. Also, it is important to know their qualifications.

3. Currency: it is necessary to know when the information source was created or produced by the author. Also, the user of this data should verify when it was published (in the case of a book) or if it requires an update (in the case of a website). Hence, the information source should be timely.

4. Objectivity: ensure that the source of information is unbiased, reliable, and should not only contain opinions but facts.

Basically, the subject of a source can best be described as the main topic or area of concern.

How do you think different people’s chromosomes would compare

Answers

Answer:

Most humans have 46 chromosomes of approximately the same size and shape. The only major difference between different people's chromosomes can be found in the sex chromosomes. ... A karyotype is a picture showing a cell's chromosomes grouped together in pairs.

Explanation:

Please help I’ll mark you as brainliest if correct!

Answers

Answer:

C It belongs to the domain Eukarya

Explanation:

The cell has a nucleus and other membrane-bound organelles, unlike a prokaryote (bacteria and archea) would. Prokaryotes lack a nucleus and other membrane-bound organelles.

Prokaryotic cell is in the image

Plant stems can be ______, ______, thick,______, or _________.

Answers

Answer:

Underground stem, Aerial stem, and subaerial stem.

Explanation:

Plant stems can be Underground stem, Aerial stem, and subaerial stem due to its presence and strength of the stem. Underground stem are thick stems that run below the ground surface. e.g rhizome. Aerial stems are thin stems that can not stand erect. Examples include watermelon and strawberry etc. Subaerial stems are very thin stems that do not rise up but grow just above the ground. for example, water plantain, flowering rush etc.

which two gas giants are most similar based on size?

subject: astronomy

Answers

Saturn and Jupiter have attracted as much similar gas as they could, to form two biggest gas giants in our solar system. But they have done things in different ways and caused differences. The first difference is the planets' densities. Saturn is significantly less dense than Jupiter

5. During which month does LA experience the most precipitation? The least?

Answers

The wettest month (with the highest rainfall) is February (1.73"). The driest month (with the least rainfall) is June (0.04")

Los Angeles, United States of America. Los Angeles has dry periods in May, June, July, August and September. On average, January is the most rainy. On average, July has the least rainy days.

An electrocardiogram (ECG) provides information about: Group of answer choices the pressure of blood in the heart chambers the rhythm of heart contractions the speed of blood flow through the blood vessels the amount of oxygen in the blood as it leaves the heart

Answers

Answer:

the rhythm of heart contractions.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

An electrocardiogram (ECG) provides information about the rhythm of heart contractions.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.



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Directions: Look at each picture below. Each circle represents an atom. If they are touching they are chemically combined. Each element is represented by a pattern. Write the number of atoms, molecules, elements and compounds for each example on the lines below. The first example has been done for you.

Answers

B:
atom 2
molecule 0
elements 2
compounds 0
C:
Atom : 1
Molecule : 1
Element : 1
Compound : 1

what is the best example of tropism in plants

Answers

Answer:

Explanation:

Some plants (flowers or leaves or both) follow the sun as it arcs across the sky each day; sunflowers (Figure below) are a well-known example. This behavior is misleadingly called heliotropism. Helio- does refer to the sun, but a tropism implies growth in a certain direction, and heliotropism does not involve growth.

One example is hydrotropism.

If you pour water into soil, a plant's roots will grow towards the water.

Which type of base is shown? How can you tell?

Answers

Answer:

The correct answer is - purine nitrogenous base (adenine).

Explanation:

The base given in the diagram in the image has two rings attach with the pentose sugar which is attached to the phosphate, which means it is the diagram of nucleotide. In this nucleotide base can be either purine or pyrimidine.

Pyrimidines have a single ring structure, whereas purines have 2 ring structures. Adenine and guanine are purines with two ring structures whereas cytosine and thymine are pyrimidines as they have one ring structure. Adenine contains an amine group on C6, and a double bond between N1 and C6.

Can some help me out please

Answers

Answer:

Codominance

Example:

A red and white spotted rose is an example of codominance while a pink rose when crossed with a red and white rose is an example of incomplete dominance.

Por qué el nitrógeno es un recurso limitado?

Answers

Aunque el nitrógeno es increíblemente abundante en el aire que respiramos, a menudo es un nutriente limitante para el crecimiento de organismos vivos. Esto se debe a que la forma particular de nitrógeno que se encuentra en el aire, el gas nitrógeno, no puede ser asimilada por la mayoría de los organismos.

which choice would most likely reduce the amount of energy resources a person uses

A. shopping with plastic bags rather than reusable bags
B. riding bicycle instead of driving a car
C. drinking bottled water instead of tap water
D. buying new clothes instead of used clothes

Answers

The answer is B since It’s the only one that helps the planet

¿Qué son los hongos?

Answers

Answer:

Los hongos son microorganismos eucariontes, tanto uni como pluricelulares-heterótrofos.

True or False: Purine is connected to pyrimidine using oxygen bonds.​

Answers

Answer:

False

Explanation:

In DNA double helix molecule, there are four types of nitrogenous bases: adenine, guanine, cytosine and thymine. Purines (i.e., adenine, guanine) and pyrimidines (i.e., cytosine and thymine) hold DNA strands together via hydrogen bonds. In base pairing, guanine always pairs with cytosine through 3 hydrogen bonds, while adenine always pairs with thymine by 2 hydrogen bonds. Hydrogen bonds are a type of dipole–dipole interaction where a hydrogen atom is covalently bonded to a very electronegative atom (e.g., Nitrogen or Oxygen).

The rete testis Multiple Choice transports seminal fluid to the efferent ductules. receives sperm from the seminiferous tubules. is a venous network that cools the arterial blood traveling to the testis. is the site of spermiogenesis. is the nerve plexus that supplies the testis.

Answers

Answer:

Receives sperm from the seminiferous tubules.

Explanation:

The rete testis is a set of tubules that transport the sperms from the straight seminiferous tubules,  the last portion of the seminiferous tubules, to the efferent ducts. Then, the sperms go to the epididymis conduct. From there, they go to the deferent conduct, then to the ejaculatory duct, and lastly to the urethra.

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What will happen to a plant cell placed in distilled water?
The cell will become flaccid due to the cell membrane.
The cell will become turgid due to the cell wall.
The cell will lysis due to the cell membrane.
The cell will burst due to the cell wall.

Answers

Answer:

the cell will become turgid due to tge cell wall

Explanation:

when a plant cell is placed in distilled water the water will move in the solution inside the cell is hypertonic to the distilled water serrounding the cell but it will not burst it producr turgor pressure keeping the plant upright

if a plant cell is placed in distilled water, and distilled water has a very low concentration of solutes the cell will become turgid due to the cell wall, hence option B is correct.

How distilled water affect the plant cell?

This is because distilled water has a very low concentration of solutes and a high concentration of solvent, making it a hypotonic solution in comparison to the intracellular environment.

To put it another way, we can say that the solute concentration of When a plant cell is placed in distilled water, it becomes turgid.

This is due to the fact that it osmotically absorbs water from the hypotonic distilled water, causing the cytoplasm of the plant cell to enlarge and firmly press up against the cell wall.

Therefore, distilled water has a very low concentration of solutes, so cells will become turgid.

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Which of the following best describes what carrying capacity is?
A
The quantity of marine life a limited water resource can sustain.
B
The maximum number of a population that an ecosystem can sustain.
C
The total amount of greenhouse gases a specific ecosystem can sustain.
D
The minimum number of predators a specific geographic area needs to sustain itself.

Answers

Answer:

A

Explanation:

here the answer will be A

You had assignment that is over due but you need extra time what is a good excuse to tell your teacher why you need extra time work on the assignment

Answers

i suggest saying you've been ill, or have had personal/family issues going on. if you say the second option, it is a bit invasive for the teacher to ask what so they shouldn't, but have something ready just in case. both of these have gotten me extensions before. :)

what is the process of reproduction between human and animals?​

Answers

All reproduction is basically the division of a cell into more cells.
Humans ARE animals so the same system applies to all these organisms.
Each individual starts as a single cell - an ovum - with a full set of the species' chromosomes/DNA - in humans always 22 and an X.
Animal species such as cats and dogs have their own set, unique to their species, with the ovum always found in the female body, stored in the
sexual reproduction

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The role an organism has in a community

A. habitat

B. food chain

C. adaptation

D. niche

Answers

Answer:

D

Explanation:

an organism lives in a habitat within a community. the role of an organism with a community is its niche

Answer:

The first person is right because, The role or job of an organism within a community is its niche.

Explanation:

Community's, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.

Have A Great Day

Love, princessmiaguzman :)

Helppppppppppppppppp

Answers

I believe it's (C). A is DNA which is not enclosed in a nucleus ,as in prokaryotic cells

Which of the following statements describes an example of phenotypic plasticity?
A) A yeast cell with a genetic mutation grows into a pink colony on a petri dish, while a cell without the mutation grows into a white colony.
B) Desert locusts with the same genotype develop into solitary or swarming forms depending on the density of individuals in their surroundings.
C) Two stems cut from a single rose plant develop red flowers, despite one being planted in full sun and the other in shade.
D) The common hawk-cuckoo and the shikra are types of birds with similar feather patterns and behaviors despite genetic differences.

Answers

Explanation:

A) A yeast cell with a genetic mutation grows into a pink colony on a petri dish, while a cell without the mutation grows into a white colony

Is this statement true or false?

Areas with mountains are warmer than other areas at the same latitude.


true

false

Answers

Answer:

Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. A coastal climate is usually mild. ... Farther inland, the climate is influenced by cold or hot air from the land.

Explanation:

hope this helps true

false

hope this helps

7. What is the relationship between the amount of greenhouse gasses in the atmosphere and the average global temperature

Answers

Answer:

More heat in the atmosphere, less absorption of greenhouse gases on Earth, and solar and volcanic activity may contribute to an increase in global average surface temperatures.

Explanation:

100 POINTS..!!

what is ANTI nuclear?? NOT JUST nuclear BUT ANTI nuclear.

PUT 3 FACTS ABOUT ANTI nuclear ENERGY.

ILL GIVE BRIANLIEST.!

Answers

Antinuclear energy or movement, are the social movement opposed to the production of nuclear weapons and the generation of electricity by nuclear power plants.

The circulatory aids the digestive system by....

A. Moving oxygen around the body

B. Taking nutrients to cells in different parts of the body

C. Creating electrical currents used to move messages around the body

D. Providing support and structure to the body

(I’ll give points + brainalist for the correct answer)

Answers

I believe it’s B ……..

Answer:

Jacksom you wanna zo.o.m?

~Janiyha

PLEASE HELP! Scientists performed studies on mussels and clams. They placed these different species in fresh water that had contaminants commonly found in agricultural runoff and human and animal waste. Within a few days, the mussels and clams had removed the majority of the contaminants. How do these findings relate to ecosystem services in natural environments?
A.
Introducing new species of mussels and clams will help reduce erosion and runoff into rivers.

B.
Increasing the biodiversity of mussels and clams in freshwater ecosystems will improve water quality.

C.
Growing mussels and clams in rivers will provide humans with a steady source of food.

D.
Using a single species of mussel or clam will remove greenhouse gasses from the atmosphere.

Answers

Answer:

The answer is B I belive, hope this helps

Answer:

B

Explanation:

Biodiversity basically means to increase the value or in this case, species of the mussels and clams so that they can improve water quality. Improving the water quality would be a service to the ecosystem. Therfore, I believe the answer is B.    

Other Questions
Plz help this is due today NO LINKS OR GROSS PICTURES OR I Will REPORT And please show work For one month, 500 elementary students kept a daily record of the hours they spent watching television. The average number of hours per week spent watching television was 28. The researchers conducting the study also obtained report cards for each of the students. They found that the students who did well in school tended to spend less time watching television than those students who did poorly. Listed are several possible statements concerning the results of this research. Place a check by every statement that you agree with based on this study.a. The sample of 500 is too small to permit drawing conclusions about elementary students in general.b. If a student decreased the amount of time spent watching television, his or her performance in school would improve.c. Even though students who did well in school watched less television, this doesn't necessarily mean that watching television hurts school performance.d. One month is not a long enough period of time to estimate how many hours the students really spend watching television.e. I don't agree with any of these statements. How do I deposit more money into my bank account According to the text what was the main causes of hostility between the US and Cuba during the cold war The Sine FunctionAccording to the National Weather Service, the average monthly high temperature in the Dallas/Fort Worth, Texas area from the years of 2006-2008 is given by the following table:Plot the data on a scatter plot., Produce a sine regression model for the data. Round the values for a, b, c, and d to the nearest 0.0001.a. y = 67.577 sin(0.500 x - 1.959) + 20.077b. y = 20.077 sin(0.500 x - 1.959) + 67.577c. y = 20.077 sin (1.959 x - 0.500) + 67.577d. y = 20.077 sin (67.577 x -1.959) + 0.500Please select the best answer from the choices provided Cul de la plantas generadoras de electricidad te parece que tiene mas respeto por el medio ambiente? what is it? thanks if you know Solve for d.821 = d + 701 Jorge works at a dairy farm that ships eggs to restaurants. Jorge decides to try new packaging for the eggs to see if it results in fewer broken eggs. Jorge packs a random sample of 8 shipments with the current packaging and a random sample of 8 shipments with the new packaging. He collects data from the restaurants on the number of broken eggs in each shipment. Current packaging: 5, 9, 4, 4, 5, 5, 7, 4 New packaging: 3, 6, 6, 3, 5, 5, 6, 5 The means are 5.375 and 4.875 respectively, for a difference of 0.5. Jorge wants to know if this is significant or if it could be caused by chance. To find out, he re-randomizes the results 12 times and finds the differences of the means. The dot plot shows the data. What is the best conclusion for Jorge to make based on the data Alex a las estrellas desde su ventana. (mirar) Question 1 of 10Which best explains why writers use rhythm in poetry?A. To avoid using clichd images and wordsB. To divide a poem into sections on the pageC. To create a sense of forward motionD. To guide the reader to understand meaning find the surface area of each figure (spheres and hemispheres) Please Help Me!*Question Is Below Here* Jane's Donut Co. borrowed $198,000 on January 1, 2021, and signed a two-year note bearing interest at 11%. Interest is payable in full at maturity on January 1, 2023. In connection with this note, Jane's should report interest expense at December 31, 2021, in the amount of: Multiple Choice A 0.125 g sample of unknown hydrocarbon is prepared for combustion analysis. After the hydrocarbon undergoes complete combustion, 0.4225 g of CO2 and 0.0865 g of H2O are produced. What is the empirical formula of the unknown Find two numbers a and b whose sum a+b is -3 and whose difference ab is -5 What is the length of the line?Choose 1 answer: HELPPP!!! I need to pass How is the story blue beard similar to other stories literature Which of the following are considered renewable resources?Select all that apply.A CoalB WindC SolarD Oil