is the heart an organ or muscle?

Answers

Answer 1

Answer: Muscle

Explanation:

Your heart is actually a muscular organ. An organ is a group of tissues that work together to perform a specific function. In the case of your heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.

Answer 2

Answer:

it's a muscle

Your heart is actually a muscular organ. An organ is a group of tissues that work together to perform a specific function. In the case of your heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.


Related Questions


Which animal adaptation happened before the others?
O A. Lungs
O B. Backbone and skull
O C. Reproduction on land
O D. Development of a coelom

Answers

Answer:

DDDDDDD

Explanation:

Yep.

(:

The animal adaptation that happened before the others is the development of a coelom. The correct option is D.

What is adaptation?

Adaptation is a process of changing or suiting the environment for better survival. Adaptations are short-term and long-term. An animal modifies their body part and behavior according to its changing surroundings.

The coelom is the body cavity in animals. They save the internal organs of the body, and they are filled with fluid. In some animals, they act as skeletons, like in worms.

The coelom is cavities of the body, and they were adapted earlier than other organs like lungs or skulls.

Thus, the correct option is D. Development of a coelom.

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A population of squirrels found in the Midwestern United States looks nearly identical to a population of squirrels found in Canada. The two groups exhibit similar behaviors but have different diets. Describe an experiment that would determine whether they are the same species. Be sure your answer explains how data would need to be collected and analyzed to form a conclusion.

Answers

Answer:

The best way to determine if these populations form part of the same species is to study the existence of reproductive isolation between populations. Moreover, the result of an experiment based on the study of reproductive barriers may be complemented with molecular biology approaches that determine the level of sequence homology between populations

Why are endemic organisms in greater danger of becoming extinct?

Answers

Answer:

They are the species which are found only in a particular area. They can be a plant, animal or microorganism. They are at great danger of becoming extinct due to the following reasons: - As they are restricted to a particular area so loss of their habitat is the major reason which could lead to extinction.

Explanation:

how natural selection allows beetles that are camouflaged to flourish in their environment?

Answers

Answer:

Natural selection is a adaptation process of evolution.

Explanation:

As the battles are the most diverse type of insects on the planet they consist of about 400,000 or more species of them on the planet.  They use camouflaged while others are easily visible and its due to this natural property that they acquired from the environment they can easily blend in with the natural features of the real world.  Such as the barks or the branches of the tree. Some of them can chemically be camouflaged as well, mostly to avoid predators and keep them away.

Final answer:

Natural selection allows camouflaged beetles to thrive because it increases their survival rate; as predators find it harder to spot them. Environmental changes like pollution can alter the selective pressure, favoring those beetles whose coloration matches the new environment, leading to a population shift in coloration over time.

Explanation:

Natural selection allows beetles that are camouflaged to flourish in their environment because it favors individuals with traits that enhance their chances of survival and reproduction. When a change in the environment occurs, such as pollution darkening the tree trunks, it may cause a shift in the population's coloration. In the context of beetles, if the environment becomes darker due to pollution, predators like birds will find it easier to spot and eat beetles that contrast with their background, hence light-colored beetles will stand out.

On the contrary, dark-colored beetles which blend in with the now darkened tree trunks will escape predation more effectively and have a higher chance of surviving to pass their genes to the next generation. Over time, the beetle population will shift towards more dark-colored individuals – a process analogous to the famous case of the peppered moth during the Industrial Revolution in England. This shift in beetle coloration exemplifies natural selection, where the adaptive advantage of being camouflaged leads to a change in the population's physical characteristics.

What is a hypersaline bay?

Answers

A bay is defined as a body of water partially enclosed by land that is directly open, or connected, to the ocean. ....

what kind of ecosystem is the thorn scrub
A. wetland
B. grassland
c. badland
d. shrubland

Answers

Answer:d

Explanation:

Shrubland? I think right ?

Answer:
1. Why do all the energy we use comes from the
sun?

Answers

Answer: This question doesn't have much detail and not all the energy we use comes from the sun. There are multiple sources of energy.

Not all energy comes from the sun there are more sources than just the sun

Which food web shows the correct sequence of organisms?

Answers

Answer: C

Explanation:

Just took the USA Test Prep Test

A new species X is introduced in a forest. How is it likely to affect the local species of that area?

Answers

Answer:

Normally, the effects of the species X are introduced in the forest that depends on the herbivores, omnivores and carnivores. Introduction as well as removal of the species is both minor as well as major effects based on the specials in the forest in more enticing manner. Local species feel a comfort.

Explanation:

1. Write the letter of the dominant allele.

Answers

Answer:

B,  T

Explanation:

Dominant alleles are represented with an UPPERCASE letter. Recessive alleles are represented with a LOWERCASE letter

The letter of the dominant allele represents the uppercase version of the corresponding gene. In genetics, alleles are different forms or variations of a gene that occupy the same position or locus on a chromosome. Each gene has two alleles, one inherited from each parent.

When determining the letter of the dominant allele, it is important to consider the dominant-recessive relationship between the alleles. The dominant allele is the allele that is expressed or seen in the phenotype when present, even if there is only one copy of it. It masks the expression of the recessive allele.

For example, in the case of eye color, let's say the gene for brown eye color (B) is dominant over the gene for blue eye color (b). If an individual inherits one allele for brown eyes (B) from one parent and one allele for blue eyes (b) from the other parent, their genotype would be Bb. However, since the brown eye color allele (B) is dominant, the individual's phenotype would be brown eyes.

In this case, the letter of the dominant allele is B. It represents the dominant gene for brown eye color.

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Which statement describes the Yadkin watershed?


It is the smallest watershed.

It is the northernmost watershed.

It is a Chesapeake Bay watershed.

It is Virginia’s most productive estuary.

IF YOU GET THIS CORRECT I'LL MARK YOU BRAINLIEST!!

Answers

Answer:The answer is A smallest watershed

Explanation:Just took review on e2020 can i have the brainliest??

Answer:

the correct answer is A. it is the smallest watershed

Explanation:

i took th reveiw and got the question right.

What does a completely filled circle represent on a pedigree chart? Group of answer choices A female carrier of a disease A male carrier of a disease A female with a disease A male with a disease

Answers

Answer: A female with a disease.

Explanation:

A pedigree chart is a diagrammatic representation of the phenotypes that are associated with the members of the family and with their generations. These phenotypes can be responsible for the development of eye color, facial forms,  skin color, a particular disease or disorder.

In a pedigree chart a dark circle or filled circle represent that the female is affected by the disease or disorder, whereas a white or unfilled circle represent a female is unaffected or disease free.

Answer:

A female with a disease.

Explanation:

20 points & Brainliest answer quickly plsssss
A small, jagged particle with a density of 1.2 g/cm3 deposits on the ground before a large, round particle with a density of 0.82 g/cm3. Which most likely influences the rate of deposition of the jagged particle?

Answers

Answer:

Answer: D; Irregular shape

Explanation: I'm not entirely positive but I do believe that the factor they're wanting you to notice in this question is the shape, as it states "deposition of the jagged particle". The shape affects the rate, as in the notes directly from the video it states "round particles settle more quickly".

Answer:

d

Explanation:

the thingy something something im sorry i need points but i believe the answer is d

Name 1 way a biotic factor interacts with another biotic Factor.

Answers

Answers

Some provide nutrients for each other

Explanation:

While wading in the ocean, you look down into the water and notice an umbrella-shaped, translucent animal. It swims by pulsing its body, and long tentacles trail behind it. One of them brushes your leg. Ouch! You feel a burning sensation where it touched you. To what phylum does this creature probably belong? Mollusca Cnidaria Porifera Platyhelminthes

Answers

Answer:

cnidaria

Explanation:

the group contains jellyfish which fit that exact description tentacles that sting you with a burning sensation if your skin comes in contact with them

Why choose that gene for PCR in the bacterial identification lab?
It is highly variable so will show slight differences between distantly related species
It is just what everyone else does, the actual gene doesn't matter, just the sequence comparison.
The primers are easy to obtain for it.
it is highly conserved so will show slight differences between distantly related species

Answers

Answer:

Background

During the course of a bacterial infection, the rapid identification of the causative agent(s) is necessary for the determination of effective treatment options. We have developed a method based on a modified broad-range PCR and an oligonucleotide microarray for the simultaneous detection and identification of 12 bacterial pathogens at the species level. The broad-range PCR primer mixture was designed using conserved regions of the bacterial topoisomerase genes gyrB and parE. The primer design allowed the use of a novel DNA amplification method, which produced labeled, single-stranded DNA suitable for microarray hybridization. The probes on the microarray were designed from the alignments of species- or genus-specific variable regions of the gyrB and parE genes flanked by the primers. We included mecA-specific primers and probes in the same assay to indicate the presence of methicillin resistance in the bacterial species. The feasibility of this assay in routine diagnostic testing was evaluated using 146 blood culture positive and 40 blood culture negative samples.

Explanation:

Results

Comparison of our results with those of a conventional culture-based method revealed a sensitivity of 96% (initial sensitivity of 82%) and specificity of 98%. Furthermore, only one cross-reaction was observed upon investigating 102 culture isolates from 70 untargeted bacteria. The total assay time was only three hours, including the time required for the DNA extraction, PCR and microarray steps in sequence.

A heat source could be considered a source of pollution.. Please select the best answer from the choices provided T F

Answers

Answer:

True:

A heat source could be considered a source of pollution.

Explanation:

The reason behind this is that global warming is attributed to the general warming o the planet's temperature without making a specification of a single source or a singular type of origin. It just accounts for warming. One of the major discoveries of this problem was the fast-food chain's contribution to global warming. Saying that the fast-food industry provides a considerable amount of warming to the planet.

Answer:

true

Explanation:

A 30 kg object has 3 forces acting on it - one 40 N force to the right, one 20 N force to the right, and one 30 N force to the left. What is the net force on the object?

Answers

Answer:

Fnet=F1+F2-F3=40+20-30=60-30=30N

F=ma

30N=30a

a=30/30

a=1m/s^2

Believe me , biology is another thing.

CONCLUSION why is baseball called “the national pastime”?

Need help

Answers

Answer: The baseball is a sport played in the eastern United States.

Explanation:

This game is called as the national pass time because this game is played and enjoyed by millions of people to pass their time in leisure activity and enjoy with the team mates and friends.

This sport is continued to be enjoyed in summer and spring. It was named so more than 150 years ago.

What percent of the females will have red eyes

Answers

Answer:

I think the answer is less than 1% of the human population has red/violet eyes.

Explanation:

This occurs in extreme cases of albinism where melanin content is very low in a person's eyes.

HOMOZYGOUS RECESSIVE: Dominant - Round Face Recessive - Square
Face Options:
1: Genotype: AA
2: Genotype: Aa
3: Genotype: aa
4: Phenotype: Round Face
5: Phenotype: Square Face Chose all that apply

Answers

Answer:

Explanation:

i need a we

I believe 3,4 but I’m not sure

Biotechnology uses a procedure called genetic engineering. Which best describes genetic engineering.

a--making artificial DNA in the laboratory from chemicals

b--adding DNA from one organism into the DNA of another organism

c--cutting out pieces of DNA from an organism under a microscope

d--replacing DNA in one organism with DNA from another organism

Answers

The answer should be B

Consider two ecosystems that scientists have labelled as ecosystem A and ecosystem B. The scientists have found that both ecosystems are
home to a roughly equal number of species. However, ecosystem A is dominated by a small number of species that are very abundant.
Ecosystem B, by contrast, has a more even abundance of organisms across Its species.
From this description, ecosystem B is considered
ecosystem A.
A.
less biodiverse than
B.
equally biodiverse as
C. more biodiverse than
D. more valuable than

Answers

Final answer:

Ecosystem B is more biodiverse than Ecosystem A due to the more even abundance of different species in it, indicating a higher level of biodiversity.

Explanation:

From the descriptions, we can infer that Ecosystem B is more biodiverse than Ecosystem A. This is because, in ecosystem A, there is an apparent dominance of a small number of species, while ecosystem B shows a more even abundance of organisms across its species, which signifies a higher level of biodiversity. Biodiversity is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, species variation, or ecological variation within an area, biome, or planet. Greater biodiversity implies greater health for the ecosystem.

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Soil can take hundreds of years to form. Soil's formation rate depends on rock type,
climate, and the presence of organisms. Is fertile soil a renewable or nonrenewable
resource? Use evidence and scientific reasoning to support your claim.
Pg.344 unit 5

Answers

Answer:Irish

Explanation: Spring green green green

Please help! I need an answer quickly, I'm confused. Plants need to perform the processes of photosynthesis and cellular respiration. Label the model to show these processes.

Answers

Pants perform Phototheisis for food and energy

Answer:

look it up on google if you want to know that fast

Explanation:

thats the smrt thing to do

7. What is the difference between a marsupial and a placental?

Answers

Answer:

The key difference between placental and marsupial is that placental mammals give birth to fully developed young ones while marsupial mammals give birth to undeveloped young ones and keep them in a special pouch until they mature.

What kind of plants live in the desert?

Answers

Answer:

Cacti and Succulents, Wildflowers, and Trees, Shrubs, and Grasses.

Answer:

Plants that usually live in the desert have ways to collect and store water for long periods of time, and have little to no leaves. They might have a specific kind of root or a different way of storing water than other plants. I hope this answer is helpful :)

Explanation:

can ecilpses occur on other planets

Answers

Answer:

The answer is no. Total solar eclipses can happen on other planets too, as long as they have moons that are big enough to cover the sun's disk from the planet's perspective and orbit the planet on the same plane as the sun, astronomers told Live Science.

Explanation:

no. the spectrum is in a different way from different perspectives of different planets. meaning there’s no possible way for their to be eclipses in other planets. earth was lucky and happened to be in the perfect place for eclipses to occur.

ANSWER: no

Select the correct answer,
Which food chain shows the correct flow of energy in an ecosystem?
A eagle - rabbit - Sun - hay
B. rabbit - eagle - hay - Sun
C.
hay - eagle - rabbit - Sun
OD
Sun - hay - rabbit - eagle
E. Sun - eagle - hay - rabbit
Reset
Wext

Answers

Answer:

D) Sun-hay-rabbit-eagle

Explanation:

the sun gives energy through light rays to hay. Hay then gives energy to the rabbit that eats it. This rabbit then gives energy to the eagle that eats it.

The correct answer is D)

Which of the following is an example of natural selection?

Answers

An example of natural selection is camouflage
Adaption
Evolution
adaptation, evolution, or camouflage
Other Questions
Banko Inc. manufactures sporting goods. The following information applies to a machine purchased on January 1, Year 1: Purchase price $ 71,000 Delivery cost $ 3,000 Installation charge $ 2,000 Estimated life 5 years Estimated units 146,000 Salvage estimate $ 3,000 During Year 1, the machine produced 42,000 units, and during Year 2 it produced 44,000 units. Required a. Determine the amount of depreciation expense for Year 1 and Year 2 using straight-line method. b. Determine the amount of depreciation expense for Year 1 and Year 2 using double-declining-balance method. c. Determine the amount of depreciation expense for Year 1 and Year 2 using units of production method. d. Determine the amount of depreciation expense for Year 1 and Year 2 using MACRS, assuming that the m Bacteria grows at an alarming rate of 75% each hour. How many bacteria will there be by the end of the day? A. 680,634B. 16,335,198C. 68,633D. 680,633 prokaryotic cell or eukaryotic cell. . Zara, an HR manager at Fluxin LLC, is responsible for implementing a guided self-appraisal system using management by objectives in her organization. She has developed specific standards for performance. Which of the following is typically the next step for Zara? a. Continuing performance discussions. b. Implementation of the performance standards. c. Setting of objectives. d. Job review and agreement. What is the solution to 2x-8 I need some help with this one... On average, each person in the industrialized world is responsible for the emission of 10,000 kg of carbon dioxide (CO2) every year. This includes CO2 that you generate directly, by burning fossil fuels to operate your car or furnace, as well as CO2 generated on your behalf by electric generating stations and manufacturing plants. CO2 is a greenhouse gas that contributes to global warming. If you were to store your yearly CO2 emissions in a cube at STP, how long would each edge of the cube be? Darius flipped a coin 500 times and it landed heads up 300 times. What is the relative frequency of the coin landing heads up based on the results of this experiment? Group of answer choices4%6%40%60% Electors are elected by popular vote, but the president is elected by..Political Parties.Popular vote.The Electoral College.Congress Which equations explain why Mya's claim must be true? Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. An industrial chemist studying this reaction fills a 500. mL flask with 3.7 atm of sulfur dioxide gas and 2.3 atm of oxygen gas, and when the mixture has come to equilibrium measures the partial pressure of sulfur trioxide gas to be 2.2 atm. Calculate the pressure equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. Round your answer to 2 significant digits. In your understanding, the Germans would have used propaganda during World War I to:inspire people to voteinspire people to give money to the American effortpromote nationalismencourage women to dress better Cheyenne Corp. had the following transactions during 2017: 1. Issued $212500 of par value common stock for cash. 2. Recorded and paid wages expense of $102000. 3. Acquired land by issuing common stock of par value $85000. 4. Declared and paid a cash dividend of $17000. 5. Sold a long-term investment (cost $5100) for cash of $5100. 6. Recorded cash sales of $680000. 7. Bought inventory for cash of $272000. 8. Acquired an investment in Zynga stock for cash of $35700. 9. Converted bonds payable to common stock in the amount of $850000. 10. Repaid a 6-year note payable in the amount of $374000. What is the net cash provided by investing activities Palmer Corp. is considering the purchase of a new piece of equipment. The cost savings from the equipment would result in an annual increase in net income after tax of $136,300. The equipment will have an initial cost of $470,000 and have a 7 year life. If the salvage value of the equipment is estimated to be $8,000, what is the accounting rate of return? Which sentence from the passage shows that exposure has something to do with time?A.A longer duration means more light is allowed to strike the film.B.A wider lens opening will increase the light intensity of the exposure.C. Over the decades, photography has become as much an art as a science.D. Human eyes are sensitive to light contrast, so this is an important feature of photography. Which statements are true of a white dwarf?a. It has a red shell.b. It is the result of the core collapse of a low-mass star that sheds its outer layers.c. It emits massive amounts of light compared with other stars.d. It strongly attracts all matter or energy that comes near it.e. 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