1. Which of the following structures makes cyanobacteria optimal symbionts for eukaryotic organisms needing oxygen and nutrients?
A.
chloroplasts

B.
plasmids

C.
thylakoids

D.
capsules

2.In the absence of meiosis and s3xual reproduction, what general process allows genetic recombination among prokaryotes?

A.
evolution

B.
mutation

C.
horizontal gene transfer

D.
endospore formation

3.Which of the following “environments” could provide the BEST chance of survival via symbiosis to a photoautotroph bacterial species?

A.
the intestine of a cow

B.
the eye of a flashlight fish living in the deep ocean

C.
a colony of fungi near a pond

D.
the interior of an ant’s nest

4.Which of the following is a feature entirely shared by the domains of bacteria and archaea, indicating their common prokaryotic origin?

A.
living in colonies

B.
autotrophy

C.
circular chromosomes

D.
being extremophiles


5.Which statement about prokaryotes is true?

A.
The vast majority of prokaryotes are pathogenic.

B.
Prokaryotes are widely used for bioremediation.

C.
It is important to try and rid your body of all prokaryotes.

D.
Prokaryotes have no industrial uses.

Answers

Answer 1

Answer:

1) B. plasmids

2) C. Horizontal gene transfer

3) C. a colony of fungi near a pond

4) C. circular chromosomes

5) B. Prokaryotes are widely used for bioremediation

Answer 2

Answer:

1 - C. thylakoids

2 - C. horizontal gene transfer

3 - C. a colony of fungi living near a pond

4 - C. circular chromosomes

5 - B. prokaryotes are widely used for bioremediation

Explanation:


Related Questions

A connective tissue disorder in which dense irregular connective tissue fails to form properly will affect the formation of

Answers

Inability of dense irregular connective tissue to form properly will affect the formation of organs and the skin.

What is connective tissue?

Connective tissue is the tissue that provides supports, and gives structure to other tissues and organs in the body.

Connective tissue is made up of cells, elastic fibers, and collagen.

The dense irregular connective tissues are distributed throughout the body are important in the formation of the skin, the eyes and walls of organs.

Inability of dense irregular connective tissue to form properly will affect the formation of organs and the skin.

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explain how asthma affects the respiratory tract.


please answer this, ty​

Answers

Answer:

If you have asthma, the inside walls of the airways in your lungs can become inflamed and swollen. In addition, membranes in your airway linings may secrete excess mucus. The result is an asthma attack. During an asthma attack, your narrowed airways make it harder to breathe, and you may cough and wheeze.

Explanation:

Resistance occurs when a patient transfers strong emotions felt about another individual to one’s therapist. Please select the best answer from the choices provided T F.

Answers

The statement that resistance occurs when a patient transfers strong emotions felt about another individual to one’s therapist of false.

Who is a therapist?

A therapist is a professional person who is trained to provide care and rehabilitation.

People with mental stress or physical problems often see a therapist.

They treat people by talking to them or give then antidepressant or other medicine.

Thus, the given statement is false.

Learn more about a therapist

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What is transpiration? Where does it occur in a plant?
Please help

Answers

Answer:

Transpiration means to perspire and is common within plants. This is loss of water vapor through leaves and/or stems.

Explanation:

Hope this helps!

Genetically identical armadillos were kept in the same controlled environment from birth and provided the same diet. Even though the animals were genetically identical and shared the same mother, they showed variations in their phenotypes that were beyond the normal range in expression.

Based upon today’s knowledge of genetics, which explanation describes the most likely cause of the phenotypic variations?

Answers

Phenotypic variations in genetically identical organisms that grow in the same controlled environment may be due to mutation.

Mutation

This refers to a sudden change to the DNA sequence of living organisms.

When the DNA base sequence of organisms changes, the effect is shown in the morphology of organisms.

For organisms that are genetically identical but grow in different environments, phenotypic variations might exist as a result of environmentally acquired traits during the struggle to adapt to their environments.

In the same environment, however, genetically identical organisms are not expected to be phenotypically different, unless a mutation to the DNA of one has occurred.

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The earliest fossil evidence of catarhines, including the dental formula 2.1.2.3, a fused frontal bone, and post-orbital closure dates to the

Answers

The fossil evidence provides a evolutionary relationship between the catarhines.

What are fossils?

Fossils are remains of dead plants and animals that have been preserved from the past and which provides information about life in the past.

Catarhines are monkeys known as Old World anthropoids or Old World monkeys.

Catarhines includes:

gibbons,orangutans,gorillas,chimpanzees, andhumans.

The fossil evidence provides a linkage between the catarhines.

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Which of the following organs does a dog not have? spleen appendix gallbladder large intestine.

Answers

Answer:

Surprisingly, dog don't have an Appendix

Explanation:

Does this help?

The cecum, a part of the large intestine, is attached to the appendix, which is a small, finger-like pouch. Dogs, along with many other animals, do not have an appendix, although humans do.

In humans, the appendix is ​​thought to have some minor immune system activities and may help with digestion. It is a vestigial organ, meaning that it has lost or reduced its original role over evolution, and its specific function is not fully understood. Dogs do not have an appendix because their digestive systems have different adaptations. Dogs have a digestive system that is relatively short and designed to break down animal proteins.

Therefore, the correct option is B.

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Your question is incomplete, most probably the complete question is:

Which of the following organs does a dog not have?

spleen appendix gallbladder large intestine.

Hello there, can you please answer this question, ty

Explain how asthma affects the respiratory tract.

Answers

Answer:

It can cause the respiratory tract to close during an attack, limiting oxygen which can be fatal. It also summons the presence of unhealthy lungs tat may need treatment, which is not good.

I hope this answers your question, please click the thanks button.

Lung disease can develop when there is a problem with any portion of the respiratory system. When your windpipe (trachea) divides into bronchi, which in turn divide into smaller tubes that travel throughout your lungs, you have a windpipe. Asthma is one of the diseases that can impact these airways. It is possible that your airways will spasm as a result of the continual inflammation, resulting in wheezing and shortness of breath.

I hope this helps you:)

What other function can a muscle perform besides movement

Answers

1. Blood circulation

Cardiac muscles are the ones that aid the pumping action of the heart thus helping with the heart circulation

2. Heat generation

Shivering is a method that the muscular system uses to generate heat to warm a body up

3. Support

Muscles that line the body to help support the internal organs in their place

4. Movement

Skeletal muscles pull on the bones causing movements at the joints.The movement caused by the respiratory muscles enables breathing.

5. Protection

Skeletal muscles cushion the body's internal organs from force applied to the body externally

Hope that helps!

3. Which of the following is NOT an example of the principles of natural selection?
A. Doves lay several eggs each year, expecting that some will not survive.
B. Doves only lay one egg per year.
C. Wing structures increase reproductive success in doves.

Answers

Option c I hope it helps:) this came for me too

what is osmosis? how does a liquid travel through a membrane?
please help me with this question please

Answers

osmosis is the net movement of water across a selectively permeable membrane driven by a difference in solute concentrations on the two sides of the membrane

Gene flow, a mechanism of evolution, works in populations not separated by ______

Answers

Gene flow, a mechanism of evolution, works in populations not separated by physical barriers.

What does the term rhetorical situation refer to?
A. The relationship between the speaker, the speaker's style of
address, and the audience's expectations
B. Parents, teachers, and other adults who are on social networking
sites
C. A specific occurrence in ancient Greece when politicians bullied
the people
D. Ideals that a speaker uses to guide a speech no matter who the
audience is

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An atmosphere is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body.

What is atmosphere?

An atmosphere is a layer or layers of gas that envelops a planet and is held in place by the planetary body's gravity.  The names of the layers of the atmosphere. The name of the layer in which Earth’s weather occurs. The layer in which ozone is found. The purpose of classifying the layers of the atmosphere.

Stratosphere contains the ozone layer. Mesosphere  is the coldest layer of the atmosphere are Troposphere, Stratosphere, Mesosphere.m Thermosphere is the hottest layer of the earth.

Therefore, An atmosphere is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body.

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Which is not a function of bone?

A. production of vitamin D
B. internal support
C. protection of internal organs
D. storage of calcium

Answers

I will probably say A

Answer:

The answer is A. production of Vitamin D

Explanation:

The only functions of bones are internal support, protetction of internal organs and storage of calcium.

EVOLUTION QUESTION FOR PAST APES/AP BIO STUDENTS!!!

Answers

Answer:

Humans

Explanation:

Prosimians include the bush babies of Africa, the lemurs of Madagascar, and the lorises, pottos, and tarsiers of Southeast Asia. I belive that those are closer to humans than birds.

Answer: Humans

Explanation: Got it right

During the early days of X-ray use for medical imaging. X-ray technicians developed cancer at a much higher rate than the general public.
Which argument BEST explains this trend?
A. X-ray exposure causes DNA bases to pair incorrectly which may led to cancer.
B. X-ray exposure causes double -stranded breaks in DNA which may lead to cancer.
C. X-ray exposure causes thymine dimer formation in DNA which may lead to cancer.
D. X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.

PLEASE ANSWER IMMEDIATELY

Answers

X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.

How X ray causes cancer?

Ionizing radiation such as X ray is classified as a human carcinogen means that it can damage DNA and cause cancer disease.

If a person has an error in a DNA repair gene and mistakes remain uncorrected. Then, the mistakes leads to mutations. These mutations may eventually lead to cancer so we can conclude that X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.

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How does changing the amplitude affect a wave's energy

Answers

Answer:

The energy transported by a wave is directly proportional to the square of the amplitude. So whatever change occurs in the amplitude, the square of that effect impacts the energy. This means that a doubling of the amplitude results in a quadrupling of the energy


Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?

Answers

Answer:

circulatory and excretory

Explanation:

The two systems that are most likely to interact when a person feels itchy from a skin irritant are the nervous system and the immune system.

What is the physiological explanation of itching?

In general, itching is a signal sent by nerves from the skin to the brain after the immune system releases substances - such as histamine - in response to irritation.

With this information, we can conclude that the two systems that are most likely to interact when a person feels itchy from a skin irritant are the nervous system and the immune system.

Learn more about itchy in brainly.com/question/1286344

what is cell division??​

Answers

Cell division can be defined as a process by which a cell distributes its genetic material and cytoplasm and gives rise to new daughter cells. It is a part of the larger cell cycle and has a direct role in cell reproduction.

Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.

What are the answers to the read and respond for the classification flocab

Answers

Answer:

I need a specific link or something to a flocabulary, I'm sorry but next time send screenshots or study

Which is an example of natural selection in action?

Answers

Answer:

the third one

Explanation:

The definition for natural selection is "the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution. Compare with survival of the fittest (see survival)."

The third question shows us natural selection. Because the population of black mice went up and the tan mice went down. this is an example of natural selection because the black mice have adapted to their environment and reproduced while the tan mice have not.

Hope this helped :)

How do fungi digest their food sources?.

Answers

Answer:Fungi release digestive enzymes into their food and digest it externally.

Explanation:

They absorb the food molecules that result from the external digestion.

I hope this helps

The cell membrane is able to move and/or change shape.
True
False

Answers

Answer:

For me, it's can the shape but not very much

Due to the antiparallel nature of the dna double helix, _________.

Answers

The antiparallel nature of the DNA double helix is responsible for the opposing direction of replication.

DNA replication

The DNA is made up of two strands that are antiparallel to each other. One is in a 5' to 3' direction while the other is in a 3' to 5' direction.

The replication process can only proceed in 5' to 3' direction only.

Consequently, one strand at a replication fork is synthesized in the direction of the fork, while the other is synthesized in the opposite direction away from the fork.

More on DNA replication can be found here: https://brainly.com/question/16464230

I need help finding real life images of both prophase and interphase. I end up mixing them together

Answers

Answer:

i found this, i think it might help

Explanation:

Attached under

Mutations can occur in the chromosomes of all types of cells. Mutations that are passed on to offspring must occur in?

Answers

They must occur in the DNA, which is in each cells nucleus. More specifically the nucleolus of the cell. A mutation occurs in an allele, where a base triplet (or a codon) gets transcribed incorrectly.

Definition of Homologous morphology?

Answers

structure found in two (or more) different species, but derived from a common ancestral structure is said to be HOMOLOGOUS in those species. The structure may or may not be used for the same function in the species in which it occurs.

Which of the following is true of coral? a. It is located in deep sea regions. B. It supports few species. C. It is composed of a single large and complex coral organism. D. It is composed of thousands of individual coral organisms. Please select the best answer from the choices provided A B C D.

Answers

Answer:

the answer is D

Explanation:

this is all I have

A major environmental problem caused by using the agricultural practice of tilling is a compaction of soil from adding compost b intercropping by traditional farmers c eutrophication from excessive fertilizer use d ozone depletion from fossil fuel use

Answers

Compaction of soil is a major environmental problem caused by Tillage.

What is Tillage?

Tillage refer to mechanical turning or manipulation of soil for the purpose of planting. it is done use tractors, harrow and plough.

Tillage lead to compaction of soil.

Compaction of soil occur when soil particles are pressed together or form clods which make it to have small pores or reduction of pore space thereby reducing infiltration of water and soil aeration.

Therefore, Compaction of soil is a major environmental problem caused by Tillage.

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Who is in the same trophic level as the frog? Select all that apply.
Snake
FOX
Hawk
Owl
Bird
Frog
Rabbit
Grasshopper

Answers

Answer:

Rabbit

Explanation:

It feeds on one prey and itself is a prey to two other animals

Answer:

frog bird mouse rabbit

Explanation:

they all have one food source

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