What characteristics define bacteria?​

Answers

Answer 1

Answer:

There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size. Not all prokaryotes are bacteria, some are archaea, which although they share common physicals features to bacteria, are ancestrally different from bacteria.
Answer 2

Answer:

Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella.


Related Questions

HELP!!

What can every Florida citizen do on a daily basis to help prevent further damage to the environment?
O join one of the many ecological organizations
O give money to the Sierra
Club or other NGOs
O make environmentally conscious choices
O lobby the government for more money

Answers

Answer:

The answer is "make environmentally conscious choices"

Explanation:

All the human are the reasons for global environmental change through a subset of proximate causes, which straightforwardly modify parts of the climate in manners that have worldwide impacts. We start this section by laying out and showing a way to deal with representing the major proximate reasons for worldwide change, and afterward continue to the more troublesome issue of clarifying them.

Different contextual analyses delineate the different ways human activities can add to global environmental change and give solid foundation to the more hypothetical conversation that follows. We have recognized explicit exploration needs all through that conversation.

I need help does anybody knows the answer

Answers

c i think





let me know if i was right :)

More the 90% of the worlds ocean is

Answers

Answer:

Inhabited by life

Explanation:

27. In 1986, a meltdown of a nuclear reactor in the city of Chernobyl, in Ukraine, released highly radioactive chemicals into the atmosphere. As a result, people suffered various forms of cancer because of exposure to these radioactive chemicals. Cancerous cells divide much more often than noncancerous cells and form tumors in the body.

(A) The radioactive chemicals burned people’s skin, which increased cell division rates in the people who developed cancer.


(B)The radioactive chemicals polluted people’s food, which changed some people’s ability to digest proteins and caused cancer.


(C) The radioactive chemicals caused structural changes in people’s genes, which changed how proteins functioned in cell division.


(D) The radioactive chemicals polluted people’s drinking water, which caused cells to divide more quickly in the people’s bodies and form tumors.

Answers

Answer:

I believe the answer could be B

The three-field system:_________
a. allowed animals to graze on two-thirds of the land.
b. was replaced with the two-field system.
c. allowed for increased production by reducing the amount of land that was left fallow.
d. made its biggest impact in southern Europe.

Answers

C: Allowed for increased production by reducing the amount of land that was left fallow.

Why should there only be only one independent variable in an expirement

Answers

Testing only one variable at a time lets you analyze the results of your experiment to see how much a single change affected the result. If you're testing two variables at a time, you won't be able to tell which variable was responsible for the result.

Which early farming tool removed the stalk and the grain from a husk of wheat?

Answers

the answer is a sickle

Answer:

thresher

Explanation:

Iron-rich minerals in rock pointed in one direction and then switched to the exact opposite direction. This supports what idea?
A.The rocks were being turned around.

B. Earth's magnetic field stopped working entirely.

C. Earth's magnetic field goes through pole reversals.

D. Being underwater makes the rocks respond to magnetic fields.​

Answers

C I believe is correct tell me if I’m wrong

In a pedigree, a rare trait appears in both sexes with equal frequency, and each affected offspring has one affected parent. What is the most likely mode of inheritance?

Answers

Answer:

Autosomal dominant inheritance

Explanation:

The most likely mode of inheritance of the trait would be autosomal dominance.

In autosomal dominant inheritance, a dominant allele on a non-sex chromosome is responsible for its transmission across generations. Unlike autosomal recessive traits that require two recessive alleles for their transmission, only one dominant allele is required for autosomal dominant traits and the implication is that it appears in every generation and both males and females have an equal chance of inheriting such traits.

Hence, for a rare trait that appears in both sexes with the same frequency and each affected offspring has one affected parent, the most likely mode of inheritance would be autosomal dominance.

Which family in the periodic table has metals that are usually harder than other metals?

Alkali metals
Alkaline earth metals
Lanthanide series
Transition metals

Answers

Answer:

Transition metals

Explanation:

The transition metals are usually harder than other metals such as the alkali metal, lanthanide series metals and the alkaline earthmetals.

The reason for this is because they have a stronger metallic bonding between their atom.

Hardness is a physical property which is attributed to intermolecular forces and the atomic arrangement

The transition metals are found in the d - block on the periodic table.

They have a d-orbirtal which confers extra electrons and higher degree of stability to the atom. The d-orbirtal provides more delocalized electrons for the metallic bonds formed.

Answer:

The answer is D), transition metals

Explanation:

I searched it up, and the only metal with hardness showing as a significant property was transition metals. I took the test, and transition metals is the answer. I also pulled this up on the internet:

Transition metals are hard which indicates the presence of covalent bonds. This happens because transition metals have unpaired d-electrons. The d-orbital which contains the unpaired electrons may overlap and form covalent bonds. Therefore, these transition metals are very hard.

1
Gases and
Photosynthesis
0)
The diagram shows the gases that enter and leave a plant during photosynthesis. Which
gases do arrows 1 and 2 represent?
*
(Photosynthesis)
(1 Point)
Arrow 1 represents nitrogen and arrow 2 is oxygen
Arrow 1 represents oxygen and arrow 2 is nitrogen
Arrow 1 represents oxygen and arrow 2 is carbon dioxide
Arrow 1 represents carbon dioxide and arrow 2 is oxygen

Answers

Answer: Arrow 1 is carbon dioxide, and arrow 2 is oxygen

Explanation: I got it right in a test.

Photosynthesis is the process of preparing food in the presence of sunlight, water, and carbon dioxide. The process is carried out by the plants and certain bacteria and algae.

The correct answer is:

Option D. Arrow 1 represents carbon dioxide and arrow 2 is oxygen

The mechanism of photosynthesis can be explained as:

Photosynthesis is the process in which light energy is converted into chemical energy. The plants use up carbon dioxide and water in the presence of sunlight to yield products.

During photosynthesis, the plants yield oxygen as a by-product and produce a sugar molecule to be used as energy.

Thus, the plants use carbon dioxide and give out oxygen during photosynthesis.

To know more about photosynthesis, refer to the following link:

https://brainly.com/question/1388366

What is the second step in the classification of living things

Answers

Answer:

The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species

please answer this question and I will mark you as brainliest. for who get the correct answer.

Answers

Answer: Your answer is The Lac Repressor

Explanation: I've taken this test before, it is correct.

5. When a hawk eats a mouse and then uses the energy from the mouse to fly,
the hawk's body converts — *
A. mechanical energy to chemical energy
B. thermal energy to mechanical energy
C. chemical energy to mechanical energy
D. mechanical energy to thermal energy

Answers

Answer:

Chemical To Mechanical

Explanation:

The Chemical energy fueled the hawk and the hawk used that energy to fly, basically like a car needs gasoline to move

The hawk body should be converted to the chemical energy to mechanical energy.

Conversion of energy:

Since the hawk ate the mouse and after this it used the energy from the mouse to fly. Since food should be treated as the chemical source while the hawk flying should be treated as the mechanical source. Also, the chemical energy should fuel the hawk and the hawk should used the energy to fly where the car required gasoline for movement.

Therefore, option c is correct.

Learn more about energy here: https://brainly.com/question/17808264

Why is difficult to make a list of characteristics of life

Answers

Answer:

"Being alive" is the most important characteristic of life. According to science the answer is different. Biology is the branch of science deals with the study of life and living matter in all its forms and phenomena.

Explanation:

Its difficult because sometimes beings can easily be side tracked

Which of the following is not an example of discontinuous variation?
attachment of ear lobes
height
blood type
biological sex

Answers

height is not an example

While standing near a river, a student noticed small rocks colliding with larger rocks, causing small pieces to break off and be carried
downstream. What processes is the student observing?
A. The small rocks are chemically weathering the larger rocks and erosion is moving the pieces downstream.
B. The small rocks are chemically weathering the larger rocks and deposition is moving the pieces downstream.
C The small rocks are mechanically weathering the larger rocks and erosion is moving the pieces downstream.
D. The small rocks are mechanically weathering the larger rocks and deposition is moving the pieces downstream.

Answers

C. The small rocks are mechanically weathering the larger rocks and erosion is morning the pieces downstream

There is no chemical change in this so it has to be mechanically. Than erosion is causing the rocks to be moving the pieces downstream. Deposition means another thing...

Which image represents cytokinesis in a plant cell?​

Answers

Answer:

D

Explanation:

gl (:

A crucial function of cytokinesis is to divide the cell in half and make sure that one nucleus is placed in each daughter cell. Thus, option D is correct.

What is the importance of cytokinesis in plant cells?

The four steps of cytokinesis are membrane insertion, contraction, and completion. Animal and plant cells experience these stages in different ways.

The assembly and action of an actomyosin-based contractile ring during animal cytokinesis were characterized as occurring at the cell periphery.

In contrast, it was thought that plant cell cytokinesis involved the centrifugal formation of a new cell wall through the fusion of vesicles generated from the Golgi apparatus.

Therefore, The process of cytokinesis begins at the anaphase phase of nuclear division and lasts until telophase.

Learn more about cytokinesis here:

https://brainly.com/question/17515

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Mary's husband dies from war-related injuries. Which insurance plan probably covers Mary and her son?

Answers

Answer:

life insurance

Explanation:

he died, so the insurance pays for some of the funeral depending on what insurance company and money goes to the family

Which of the following molecules supplies the main source of short term energy used in cellular respiration?

Answers

ATP is used by a number of cellular components as a source of energy. ATP is also commonly used on transporters, which are proteins that function to move molecules across the cell membrane.

PLZZZ HELP IMPORTANT


Match each type of mutation with the correct chemical sequence for A-C-G-T.

1. A-C-G-G-T
deletion
2. C-G-T
reordering
3. A-G-C-T
duplication

Answers

Answer:  1. A-C-G-G-T is Duplication.

2. C-G-T is Deletion.

3. A-G-C-T is Reordering.

i try

Which of these choices do both sustainable and organic agriculture avoid?

Answers

Answer:

You are saying which one but what is which one???

Explanation:

During the period of time labeled Z in the graph, there is a drastic change in biodiversity. Which of following best describes the ecosystem at the rnd of time period Z?

Answers

Answer:

D: The ecosystem has a low biodiversity, so there is less competition over available resources among the species

Explanation:

PLEASE HELP MARKING PEOPLE AS BRAINLIST ALL DAY

Nitrogen fixation is carried out primarily by ________ with legume plants in root nodules . who live in a symbiotic relationship

A:humans
B:plants
C:bacteria
D:consumer

Answers

Answer:

Letter c po sagot

Explanation:

you welcom

Answer:

C

Explanation:

Bacteria can live in a symbiotic relationship

In the PBS video about the marathon, the speaker discusses several pieces of information about why humans are well equipped for running. The majority of his support for this position comes from which discipline?

You Answered

Answers

Well the PBS kid television is about to teach kids how to behave and be disciplined .

Explanation:

They also have them to learn.

i think some of y'all know this so pls help me to answer this i don't have any stock knowledge

I took a photo 'cuz they said there's forbidden messesage ​

Answers

H0m0zygous dominant, heterozygous (hybrid), dominant ,h0m0zygous recessive , h0m0zygous recessive,heterozygous (hybrid) ,heterozygous (hybrid) ,dominant ,dominant ,recessive

what is the importance of solution​

Answers

Answer:

Solutions play a very important role in many biological, laboratory, and industrial applications of chemistry. Of particular importance are solutions involving substances dissolved in water, or aqueous solutions.

Explanation:

Identify which list of questions below would all be classified as Abiotic
Options:

Deer, fern, mushroom, soil

Weather, volcano, sunlight, river

Elephant, fish, weather, fern

Sunlight, river, deer, volcano

Answers

The list of options that would be classified as abiotic are sunlight, river, deer, volcano (option D).

What are abiotic factors?

An ecosystem is the interconnectedness of organisms (plants, animals, microbes) with each other and their environment.

An ecosystem is composed of biotic and abiotic components. Biotic factors are those factors that have life while abiotic factors are those without life.

Biotic factors or components include the following:

Plants e.g. ferns, mushroomsAnimals Microbes e.g. bacteria

Therefore, the list of options that would be classified as abiotic are sunlight, river, deer, volcano.

Learn more about abiotic factors at: https://brainly.com/question/10111151

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please help me
thank ​

Answers

Answer:

You got the answer

Then okay

Select the correct answer. A physician examines a patient who complains of breathing problems. She finds fluctuations in the patient's blood pressure and heart rate. The physician thinks it's because of a brain Injury. Which part of the brain is affected?​

Answers

(Medulla oblongata) is the part of the brain which is affected of the patient who is complaining of breathing problems. The (Medulla oblongata) is a vital center which controls visceral activities such as breathing, heart rates, blood pressure, swallowing and vomiting.

Hope This Helps!!

Answer:

Medulla oblongta

Explanation:

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