Which characteristic is unique to vertebrates?

A) they all have a well-defined skeleton

B) they have no defined organ systems

C) they have bilateral symmetry

D) they have an exoskeleton

Answers

Answer 1

Answer: They have well-defined skeleton.

Explanation:

This is because the vertebrates are uniquely characterised by the presence of the bones.

Answer 2

Answer:

Answer is A)They have a well-defined skeleton

Explanation:

most reasonable answer


Related Questions

What is the role of RNA polymerase

Answers

Answer:

a

Explanation:

aa

Answer:

RNA polymerase (green) synthesizes RNA by following a strand of DNA. RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.

What are altitudes? help pls

Answers

Answer:

Altitude is how high vertically something is by definition

1 : height above a certain level and especially above sea level. 2 : the perpendicular distance from the base of a geometric figure to the vertex or to the side parallel to the base.

Why do v sneeze
plz explain it step by step​

Answers

You’re just releasing air that helps your body get rid of irritants that are in our throat and nose. Such as, pollen, dust, etc.

What family does rat belong to

Answers

Answer:

Rat. The laboratory rat, Rattus norvegicus, belongs to the order Rodentia and family Muridae. Rats were first used for experimental purposes in the mid 1800s. Strains were developed to study neuroanatomy, nutrition, endocrinology, genetics and behavior.

Explanation:

hope this helps you

Name two pea plant traits studied by Gregor Mendel.

Answers

Answer:

Mendel used 7 pea plant traits in his experiment which included :

1.flower colour (purple or white)

1.flower colour (purple or white)2.flower position

1.flower colour (purple or white)2.flower position3.stem length

1.flower colour (purple or white)2.flower position3.stem length4.seed shape

1.flower colour (purple or white)2.flower position3.stem length4.seed shape5.seed colour

1.flower colour (purple or white)2.flower position3.stem length4.seed shape5.seed colour6.pod shape

1.flower colour (purple or white)2.flower position3.stem length4.seed shape5.seed colour6.pod shape7.and finally the pod colour.

The two pea plant traits studied by Gregor Mendel:

flower colorstem length

Gregor John Mendel discovered the basic principles of heredity through experiments with pea plants. The reasons behind choosing pea plants are: bisexual, self-pollinating, and various physical characteristics were easy to recognize and study.

In this, he used seven pea plant traits in his experiments are:

flower color (purple or white), flower position (axil or terminal), stem length (long or short), seed shape (round or wrinkled), seed color (yellow or green), pod shape (inflated or constricted)pod color (yellow or green).

Thus, the correct answer is -:

flower colorstem length

Learn more about the experiment of Mendel:

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How are meiosis and mitosis different?

Answers

Answer:

Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.

Explanation:

How does increased biodiversity increase the stability of a community?
A. High biodiversity increases the chances that a community will
encounter an extreme disturbance.
B. High biodiversity decreases the chances that a community will be
able to survive a disturbance.
C. High biodiversity increases the chances that a community will be
able to survive a disturbance.
D. High biodiversity decreases the chances that a community will
encounter an extreme disturbance.

Answers

Answer:

B

Explanation:

High biodiversity decreases the chances that a community will be

able to survive a disturbance.

High biodiversity decreases the chances that a community will be able to survive a disturbance. Therefore option " B" is correct.

What is biodiversity?

Biodiversity is a word used when all the different varieties of life forms, therefore, animals, microorganisms, and plants all come together and work. both biotic and abiotic factors are included in biodiversity. There can be a variety of species that co-exist altogether.

There are three levels of biodiversity species diversity, ecosystem diversity, and genetic diversity. Examples are pine trees, sunflowers, blue whales, tigers, and all types of microorganisms. The threats to biodiversity are an invasion of alien species and an increase in the number of predators.

Therefore, biodiversity is all species coexisting altogether.

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What happens after metaphase?
O A. Telophase
O B. Prophase
O C. Go phase
O D. Anaphase

Answers

it's D. anaphase

hope this helps

The correct sequence of Mitosis are Interphase – Prophase – Metaphase – Anaphase – Telophase. Therefore, Anaphase happens after metaphase. So, the correct option is D.

What is Mitosis?

Chromosomes that have been duplicated are split into 2 new nuclei during the cell cycle phase known as mitosis. Mitosis, the process of cell division, creates genetically identical cells with a constant number of chromosomes. Hence, equational division is another name for mitosis.

A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic phase. The cell's contents are often evenly separated into two daughter cells with identical genomes after mitosis.

Interphase, Prophase, Metaphase, Anaphase, and Telophase are the proper phases of mitosis. Anaphase therefore follows metaphase.

Therefore, the correct option is D.

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Which structure is the first to collect the urine?

Answers

Hello...!

My Answer

Metabolic waste is considered urine first in the collecting duct of the nephron. From the collecting duct, the urine will travel to the minor and major calyces and then the renal pelvis before leaving the kidney via the ureter.

I hope it's helps ╮(^▽^)╭

#Carryonlearning

The structure that is the first to collect urine is the calyx. The correct option is B.

What is calyx?

The name "calyx" refers to the flower's outermost whorl. The calyx is made up of sepals because they serve as the calyx's functional building blocks.

Urine travels through the renal calyces, which are kidney chambers. The apex of the renal pyramids is surrounded by minor calyces. Each pyramid's renal papillae are surrounded by a little calyx that collects urine from that particular pyramid.

A major calyx is formed when several minor calyces come together. Urine travels from the main calyces into the renal pelvis and then into the ureter. The majority of the sepals' color is green, and they serve to shield the flower's internal organs from damage, mechanical harm, and desiccation.

Therefore, the correct option is B) calyx.

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The question is incomplete. Your most probably complete question is given below:

A) pelvis. B) calyx. C) ureter. D) urethra.

Which gases is unique to planet earth?

Answers

Answer:

Earth's atmosphere is roughly 78 percent nitrogen and 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases. Nowhere else in the solar system is there an atmosphere loaded with free oxygen, which is vital to one of the other unique features of Earth: life.

Answer:

oxygen and carbon dioxide are unique gases to planet earth..

functions of the female reproductive organs​

Answers

Are there certain ones you need, like ovaries, vagina, uterus

Which statement about scientific notation is true?
O A. It provides a way of measurement without units.
B. It allows scientists to make calculations more easily.
C. It allows scientists to invent new units of measurement.
D. It is a system of mathematical symbols used to describe energy
and matter.

Answers

The answer is B ( it allows scientists to make calculations more easily)

A donor strain of bacteria with genotype ara - gly - phe is infected with phages. The phage lysate from these bacterial cells is collected and used to infect a second strain of bacteria that are ara gly phe - . The number and genotype of the transduced bacteria are below. Genotype Number of cells ara- gly phe- 245 ara- gly phe 85 ara gly phe 192 ara- gly- phe- 25 ara gly- phe 156 ara gly- phe- 218 ara- gly- phe 75 What is the order of the genes?

Answers

Answer: use studylib, answer is on there

Explanation:

https://studylib.net/

Sorry I don’t have an answer but I needed to “answer” a question so I can ask one

state 5 processes involved in water cycle

Answers

Answer:

There are five processes at work in the hydrologic cycle: condensation, precipitation, infiltration, runoff, and evapotranspiration. ... Together, these five processes - condensation, precipitation, infiltration, runoff, and evapotranspiration- make up the Hydrologic Cycle.

Answer:

5 processes involved in water cycle are .

condensation precipitationinfiltrationrunoffevapotranspiration

hope it is helpful to you ☺️

2
Organism A
Offspring 1
Offspring 2
The diagram below represents a form of cellular reproduction
Fi
As a result of this process, offspring 1 and offspring 2 will have *
(2 Points)

Answers

Answer: A

Explanation:

they will have different traits because they will each have different dna but the same amount of genes

Offspring 1 and offspring two will have the same number of genes but different traits. So, the correct option is A.

How the same number of genes?When a sperm fertilizes an egg cell, each parent contributes 23 chromosomes with genetic information to the offspring. This means that each cell of the offspring's body has 23 chromosomes that contain instructions for their development, including their traits.

What are the different traits?Parents pass on traits, such as eye color and blood type, to their offspring through their genes. Some health conditions and diseases can be passed on. Sometimes, one characteristic has many different forms. For example, blood type can be A, B, AB, or O.Eye color is based on the amount of pigment melanin in the iris. Every gene has an allele from its parents, so many variations are possible.  Because of this, even if parents have blue eyes, offspring can have brown or green eyes, or one offspring can have blue, and others can have different eye colors from their family.

Thus, we can conclude that two offspring will have the same genes but different alleles.

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The catalytic converter most likely was developed in response to *

A) the demand for more energy-efficient cars
B) the demand for increased car engine power
C) a need for lower-priced cars
D) a need to reduce air pollution

Answers

The answer is D. A need to reduce air pollution

what will most likely happen if a population is large and no migration, mutation, or environmental change occurs?
1. natural selection will increase
2. nonrandom mating will start to occur
3. the rate of evolution will increase
4. gene frequencies will remain constant

Answers

4. Gene frequencies will remain constant

All of the following are examples of fibrous joints except: ________________

a. tooth within the maxilla
b. skull with the atlas
c. radius with the ulna
d. frontal bone with the parietal bones

Answers

Answer:

a. tooth within the maxilla

Explanation:

Fibrous joints are the type of joints that is connected by fibrous tissue, consist  mainly of collagen. These joints are fixed joints where bones are united by a layer of white fibrous tissue having different thickness. Fibrous joints are present in the neck, in the wrist, knee, hip and at the foot of our body where two bones connect. It does not occur in tooth within the maxilla of human body.

help lol I don’t get it at all and need help with this

Answers

Answer:

i think red

Explanation:

sorry if it is wrong

Hi! I believe it’s yellow because mudskippers can live in out of water and lungfish live in water. Mudskippers are amphibians so if they are amphibians/fish that much be the correct option. I hope this helps, Goodluck :)

There is an estimated 10-100 trillion bacteria and other microorganisms living in the human digestive system, forming a mutualistic relationship in which all species benefit. Recently, much research has been done on the role of these microorganisms in the development of disease, the brain, and behavior.
Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used.
The________ is a layer of cells lining the blood vessels within the brain, acting as a filter that controls the molecules that pass between the blood and the brain.
An organism's ________ is the collection of all the microorganisms (e.g. bacteria, phages, fungi) that live inside the digestive system of that individual.
A_______is a type of intercellular protein connection between animal cells that prevents leakage of materials through the space between the cells.
The transmembrane protein ________ is one of the component proteins of a tight junction.
________lack all microorganisms in their digestive systems, a state achieved by delivering them through cesarean section and raising them in sterile incubators.
_______ are raised under sterile conditions to limit their exposure disease-causing microorganisms.
tight junction
gut microbiota gap junction
germ-free mice pathogen-free mice
blood brain barrier adhesion plaque
occludin

Answers

Answer:

- The blood brain barrier is a layer of cells lining the blood vessels within the brain, acting as a filter that controls the molecules that pass between the blood and the brain.

- An organism's gut microbiota is the collection of all the microorganisms (e.g. bacteria, phages, fungi) that live inside the digestive system of that individual.

- A gap junction is a type of intercellular protein connection between animal cells that prevents leakage of materials through the space between the cells.

- The transmembrane protein occludin is one of the component proteins of a tight junction.

- Germ-free mice lack all microorganisms in their digestive systems, a state achieved by delivering them through cesarean section and raising them in sterile incubators.

- Pathogen-free mice are raised under sterile conditions to limit their exposure disease-causing microorganisms.

Explanation:

The blood-brain barrier is a layer of cells made up of endothelial cells that act to limit the passage of substances from the bloodstream in a more selective manner than endothelial cells of capillaries located in other parts of the body. Gut microbiota can be defined as all the microorganisms (i.e., bacteria) inhabiting the mammalian gastrointestinal tract, which helps to ferment non-digestible substrates (e.g., dietary fibers). A gap junction is a class of cell junction that is formed between cells contacting each other which allows small molecules (e.g., water, ions, metabolites, microRNA sequences, etc) to pass through this intercellular communication.  In vertebrate animals, cell junctions can be divided into 1-gap junctions (communication between cells), 2-tight junctions (occludin junctions), and 3-adherens junctions, hemidesmosomes and desmosomes (anchor junctions). Tight Junctions are composed of multiple proteins including transmembrane proteins such as occludin, tricellulin, junctional adhesion molecule (JAM), and one member of the claudin protein family. Germfree animals are research animals that have no microorganisms living in or on them, which are housed in controlled/isolated conditions to prevent any type of contamination. Finally, pathogen-free animals are research animals that are guaranteed to be free of particular pathogenic (harmful) microorganisms.

Which food has the greatest amount of polyunsaturated fat?

Answers

there are multiple foods that do, some examples are:
walnuts
sunflower seeds
fish
There are multiple foods

What is biotechnology, and what are some examples from the ocean?

Answers

Answer:

Marine biotechnology may include techniques such as bioprocessing, bioharvesting, bioprospecting, bioremediation, using bioreactors etc (so called process biotechnology techniques); aquaculture/fisheries; gene, protein, or other molecule based techniques; while applications may include: health, food, cosmetics

What did you remember to include in your paragraph?

Answers

Evidence to back up your claim, and a conclusion.

Disinhibition of the lateral geniculate nucleus may be responsible for vivid visual hallucinations in what condition?
a) behavioral variant frontotemporal dementia
b) schizophrenia
c) Alzheimer's disease
d) peduncular hallucinosis

Answers

Answer:

d) peduncular hallucinosis

Explanation:

One of the most striking symptoms of perpendicular hallucinosis is the existence of very vivid, colorful, and recurrent visual hallucinations. These hallucinations occur due to lesions of the brainstem and thalamus, which can influence a disinhibition of the lateral geniculate nucleus. The hallucinations provoked can be very debilitating for the person suffering from this illness and can completely disassociate him from reality.

As a general rule, should sample turbidity corresponds to sample fluorescence in liquid E.coli cultures?

Answers

Answer:

Throughout the explanation segment, the description of the query is presented below.

Explanation:

The turbidity spectrometer depending on the intensity isn't a trustworthy indication of microbial cell numbers. However, these should still be utilized as parameter estimates instead of the exact numbers.Benefits at all from the measurement of the radiation reflected by both acutely and chronically organisms, since adsorption capacities change as a result of the current microbiological composition.


The red panda is an endangered mammal. Red pandas live in the trees in the forests in China. Explain one way of
making sure the red panda does not become extinct.​

Answers

Answer:

The red panda (Ailurus fulgens) is a carnivoran native to the eastern Himalayas and southwestern China. It is listed as Endangered on the IUCN Red List because the wild population is estimated at fewer than 10,000 mature individuals and continues to decline due to habitat loss and fragmentation, poaching, and inbreeding depression.[1] Despite its name, it is not closely related to the giant panda.[3]

Endangered (IUCN 3.1)[1]

Scientific classificationedit

Kingdom:

Animalia

Phylum:

Chordata

Class:

Mammalia

Order:

Carnivora

Family:

Ailuridae

Genus:

Ailurus

F. Cuvier, 1825

Species:

A. fulgens

Binomial name

Ailurus fulgens

F. Cuvier, 1825

Subspecies

A. f. fulgens (Himalayan red panda) F. Cuvier, 1825

A. f. styani (Chinese red panda) Thomas, 1902[2]

H.L is a 65-year-old Caucasian male diagnosed with Hodgkin’s Lymphoma (NHL) 4 months ago. He just finished receiving his third of six chemotherapy courses 5 days ago. Yesterday morning, he was seen at his oncologist’s office for malaise, muscle weakness, and palpitations. He had splenomegaly on examination. A computerized tomography (CT) scan of the abdomen showed metastatic disease in the liver and spleen. He is admitted to the hospital with progressive disease. The physician confirms a diagnosis of acute tumor lysis syndrome (TLS) and writes a number of orders for H.J.

Required:
What major complication of TLS is H.J. at risk for and why?

Answers

Answer:

The correct answer would be - renal failure, kidney stones, uric acid neuropathy and other complications.

Explanation:

The symptoms of H.J include decreased urine output, flank pain, peripheral edema. H.J. is at risk for acute kidney injury which can result in renal failure due to elevated levels of uric acid, BUN, and creatinine.

Uric acid begins to precipitate in the kidneys and leads to conditions such as uric acid nephropathy and subsequent kidney injury. ECG shows in such patients as elevated heart rate due to hyperkalemia and hypocalcemia.

- Muscle cramps, Diarrhea, Nausea, and vomiting

- Renal failure due to kidney stones because of high uric acid.

human being, grass, tiger contract the food chain​

Answers

Answer:

I think it is grass_ tiger _human being

Answer:

grass-antelope-tiger-human being

Explanation:

because to complete this chain there has to be a herbivorous animal, T2-tropical level 2(antelope)

what is scientific method ? what are the steps involved in scientific method​

Answers

The scientific method steps are
1. Observe
2. Question
3. Hypothesis
4. Production based on the hypothesis
5. Test
6. Use results to conclude if your hypo was right or not.
7. Make a new hypo

The method is a scientific way of finding the answer to your questions. Or in other words. Gathering knowledge that is based on characterized and developed scientific evidence.

1. What is the speed of sound through air?
200 meters per second
400 meters per second
335 meters per second
600 meters per second

Answers

Answer:

actually it is 343m/s ..........

Answer:

C. 334 Meters per second

Please mark me the correct answer, i did the quiz and got this right :)

Explanation:

Other Questions
An error in the physical count of goods on hand at the end of a period resulted in a $10,000 overstatement of the ending inventory. The effect of this error in the current period is (use the COGS equation for the Periodic System):__________A. Cost of Goods Sold: Understated, and Net Income: UnderstatedB. Cost of Goods Sold: Overstated, and Net Income: OverstatedC. Cost of Goods Sold: Understated, and Net Income: OverstatedD. Cost of Goods Sold: Overstated, and Net Income: Understated Find the lengths of the missing pieces of the triangle. (Picture attached). Thank you!! What do people usually do to stay healthy in your country? Need help quick easy problem to solve pls help! help pleaseee and thank you These questions are about the movie Spare Parts Each of the students (Lorenzo, Luis, Oscar, and Christian) had different skill sets. Describe how each of them contributed to the team? What is one major life lesson you learned from this movie? How did the boys persevere through difficult times during the movie? Which of the following is an example of procedural law? A. The order in which the steps of a trial take place B. The specific civil rights listed in the U.S. Constitution C. What an individual is allowed to do in public locations D. The amount of a certain chemical that can be present in manufacturing waste If P measures 27, R measures 135, and r equals 9.5, then which length can be found using the Law of Sines? p r PQ PR The ratio of goldfish to gallons of water is 7 to 2. How many goldfish can you get if you have 16 gallons of water? __________ and How many gallons of water do you need to keep 28 fish? ____________. This is typical animal cell.here we hv to label it. I hv done it so far but im not sure with my answers so if u can check whether it is correct or wrong & tell the correct answer it would be a great help for me. I need answers ASAP! Thnks. 2826666667(1,06^n-1)=800000000 (1,06^n-1)=0,283 1,06^n=1,283 log(1,06)^(n )=log( 1,283) nlog(1,06)^n=log(1,283) Maintenance costs for pollution control equipment on a call for an s are expected to be $180,000 now and another $70,000.03 years from now. assume that the company uses a real interest rate of 9% per year and the inflation rate average is 3% per year. What is the equivalent annual cost of the equipment? Which issue was addressed by the Supreme Court in the Dred Scott case?A: whether Northerners could own slavesB: whether slaves were citizens or propertyC: whether free blacks could voteD: whether Kansas was a slave or free statePlease answer A,B,C or D Over what interval is the function in this graph constant? Determine where the PHD Mathematicians live.The Mathematicians who live within the enclosure made bythe parabolay = x2 +2x-3and the liney = -x + 1have all earned their PHD in Mathematics. The following mathematicians live at the following coordinates:Annie Easley:Benjamin Banneker:Fan ChungJoan ClarkeA (-3,5)B (6, 5)C (5,5)D(-1,-3)Sophie GermainElbert Frank Fox:Emmy NoetherJama Musse Jama:E (3,6) David Blackwell:F (-2,-2) Mary Somerville:G (-1,-4) Grace Hopper:H(-6,8) Nalini JoshiI (-1, -1)J (3,-2)K(-1,-2)L (0, -1)a) Plot the points given above on the grid. *Label each point with the given letterb) Graph the liney = -x + 1Slope=__: y-intercept=c) Factor and then find the x-intercepts.y=x2+2x-3 Which of these statements is true? which of the following constitutes an implicit cost to company AA. property taxes B. Payments of wages to its office workersC. raw material costs paid by company A to the supplier BD. value of the land owned by the company A i have no idea what to do can someone pls help me quick Read the passage.1.Whan that Aprill with his shoures soote2.The droghte of March hath perced to the roote,3.And bathed every veyne in swich licour4.Of which vertu engendred is the flour;5.Whan Zephirus eek with his sweete breeth6.Inspired hath in every holt and heeth7.The tendre croppes, and the yonge sonne8.Hath in the Ram his half cours yronne,Which literary device is used in lines 3 and 4?allusiona standard rhyme schemealliterationirony They are inviting me change passive voice