Sharks, whales, and dolphins share similar features such as body shape and the position of fins. However, sharks have gills for breathing,
while whales and dolphins have lungs. These differences indicate that the organisms share common ancestor for
v
Whales also possess a vestigial pelvic bone. The presence of the pelvis bone may indicate that whales?

Answers

Answer 1

Ans These differences show that they belong to a same kind of species. But in science whales are categorized as mammal

Explanation:


Related Questions

How are microtubules built and destroyed?

Answers

Microtubules are generated by polymerization of dimer subunits of alpha and beta-tubulin.

What are microtubules?

Microtubules are essential proteins of the cytoskeleton that provide structural support to the cell.

Alpha and beta-tubulin subunits are arranged in a repeated way to form protofilaments, whereas molecular motors are proteins that disassemble microtubules.

In conclusion, microtubules are generated by polymerization of dimer subunits of alpha and beta-tubulin.

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take a subject or origins or a question you have and write a minimum of 500 words as a research project. Be sure to list all references and resources as part of your bibliography. Other information can be found at a library or other reference source.

Answers

To write a report on the origin of life first identify the different theories and then use reliable sources to explain these theories.

What are the theories of the origin of life?Life emerged as a result of chemical reactions that created complex structures.Life first emerged in clay that contained different chemical elements and simple substances.Organic compounds essential to life existed on ice that later melted.Life began in space.

How to write a report?Look for credible articles, research reports, etc. that support and explain each of the theories.Using the information from the sources and your own words explain each of the theories, the evidence that proves it, and its flaws.

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Discuss the relationship between the digestive systems a carnivore and herbivore and compare the length of the digestive system and diet of that animal

Answers

Herbivores have longer digestive systems than carnivores have.

How the herbivores have longer digestive systems compared to carnivores?

We can conclude that the herbivores have longer digestive systems compared to carnivores.

Carnivores feeds on other animals whereas herbivores eats plants.Most herbivores have a four stomach compartment system that helps them process and digest their food.This is because they have to process cellulose in plants which needs to be properly broken down.Flesh-eating carnivores do not require this arrangement.The four stomach compartment of most herbivores includes Rumen, Reticulum, omasum and abomasum.They also chew the cud whereby they regurgitate food materials.

Thus, this could be the answer.

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Summary of transcription

Answers

Answer:

Explanation:

During transcription, DNA is converted into RNA in the nucleus of the cell.

Alpa wants to change 0.54 kilometers into a smaller metric unit

Answers

If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.

What is a Metric unit?

A Metric unit may be defined as a technique of measurement in which the basic units are the meter, the second, and the kilogram. These units are interchanged with one another by using several formulas of conversion.

The complete question is as follows:

Alpha wants to change 0.54 kilometers into a smaller metric unit. She will have to:

multiply divide addsubtract

Therefore, If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply. Thus, the correct option is A.

For example, In case, if she wants to convert 0.54 into hectometers, then she has to multiply it by 10, that is, 0.54 × 10 = 5.4 hectometers.

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which cellular component of our body are involved in developing infection​

Answers

Answer:

the white blood cells or leucocytes

White blood cells. They are made in your bone marrow and are part of the lymphatic system.

why do farmers prefer to rear hybrid pigs to local pigs​

Answers

Answer:

Farmers prefer to rear hybrid pigs to local pigs because it provides notable improvements in traits associated with reproductive performance and motherly ability.

Explanation:

used because it provides significant improvement in traits relating to reproductive performance and mothering ability. this is my answer

cells were first discovered when a scientist named _____________ observed cell walls in cork under a microscope

Answers

The cells were first discovered when a scientist named Robert Hooke observed cell walls in cork under a microscope.

Who was Robert Hooke and what was his importance for cytology?

Robert Hooke's observation made it possible to visualize the dead cell walls of cork, even without knowing what the image represented, exactly, and without relating living beings to a cellular composition.

In the beginning, the cell theory was elaborated by the scientist Robert Hooke, in the year 1665. Based on this research, the cell is a morphophysiological unit of all living beings, that is, it corresponds to the smallest unit of life.

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i need help with part b​

Answers

hey i can’t see the picture
89% for part 1, 0.9% on part 2. The reason for this is because only about 10% of energy makes it to the human because we lose ATP (energy) by simply trying to digest our meals. Same thing with the cow. The cow didn’t get the full 100% of the sun’s energy because it had to use energy to digest the plant.

If your blood becomes too diluted, what will happen to the red blood cells?
A. They absorb some of the ions to balance the concentration.
B. They undergo lysis.
C. They undergo crenation.
D. They become turgid.

A B C or D i rlly dont need anything else

Answers

Answer:

C

Explanation:

honestly this is just my answer I'm not even sure I'm just trying to get points

Answer:

B

Explanation:

For which of the following problems would growing and maintaining cover crops be an appropriate solution? (3 points)

I. Erosion is thinning the soil on a farm.
II. The organic matter and nutrients in the soil on a farm are being depleted.
III. The soil on a farm is becoming arid due to decreased water-carrying capacity.

A. I and II only
B. I and III only
C. II and III only
D. I, II, and III

Answers

Cover crops are suitable for preventing erosion, evapotranspiration of water from soils, as well as prevent leaching of nutrients. The correct option is D.

Functions of cover crops

Cover crops are grown primarily to protect the soil from the following:

water and wind erosionexcessive evaporation of watermineralization of nutrientsweed and pests.

In addition, some cover crops are able to fix nitrogen into soils and serve as a source of green manure for the soil.

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Why was the BIOS framework relocated to flash memory from a complementary metal-oxide-semiconductor (CMOS) in later development?

Answers

Answer:

Answer is D

Explanation:

Flash memory provides stability to the

BIOS framework and makes update

installation much easier than with CMOS.

Because these two transistors are complementary to one another, a circuit created by combining them is referred to as a complementary MOS circuit, or CMOS circuit for short. Thus, option D is correct.

What is complementary metal-oxide-semiconductor (CMOS)?

The majority of modern integrated circuits, commonly referred to as chips or microchips, employ a complementary metal-oxide semiconductor (CMOS) as their semiconductor technology.

Metal-oxide semiconductor field-effect transistor technology is the foundation for CMOS transistors.

Several analog circuits, including image sensors (CMOS sensors), data converters, and highly integrated transceivers for various forms of communication, also use CMOS technology.

Therefore, BIOS framework relocated to flash memory from a complementary metal-oxide-semiconductor (CMOS) in later development.

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Fossil fuels are made when....

A. organisms don't fully decompose and become
trapped underground
B. organisms collide at high speeds during
catastrophic events
C. bedrock is liquidated due to shifting tectonic
plates
D. volcanic ash is liquidated under extreme pressure

Answers

Answer:

A

Explanation:

a - What happens when organisms don't decompose? If there were no decomposers, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.

b - What happens when a catastrophic mass extinction occurs? A mass extinction event is when species vanish much faster than they are replaced. This is usually defined as about 75% of the world's species being lost in a 'short' amount of geological time - less than 2.8 million years

c - What does the shifting of tectonic plates cause? At the “seams” where tectonic plates come in contact, the crustal rocks may grind violently against each other, causing earthquakes and volcano eruptions. The relatively fast movement of the tectonic plates under California explains the frequent earthquakes that occur there.

d - Volcanic ash doesn't actually do that.

Now, how do fossil fuels form? After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Fossil fuels are formed when the organic matter that has been buried deep within the earth is subject to heat and pressure over millions of years. In both cases, heat and pressure are critical to the formation of fossil fuels.

so your answer is a

hope this helps:)

A student wants to know which part of his local beach contains the most turtle nests during nesting season. He researches turtle nesting and plans his experiment. Once his experiment is completed, he gathers his evidence and analyzes it to form a conclusion. What part of the scientific method is he missing from this investigation

Answers

The part of the scientific method is he missing from this investigation is the construction of a hypothesis.

What is an investigation?

It should be noted that an investigation refers to the process carried out in order to get information about a topic.

In this case, the part of the scientific method is he missing from this investigation is the construction of a hypothesis.

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what factors affect the populations in a ecosystems

Answers

pollution, predator’s, and lack of resources

Which of the following is NOT an example of pseudoscience?

Answers

Biology, Chemistry, Physics, and Medicine are not classified under the category of Pseudoscience.

What is Pseudoscience?

Pseudoscience may be defined as a recommendation, a determination, or a method of illustration that is delivered as science but that lacks the severity important to the scientific approach.

Pseudoscience may always deal with the concept of recommendation methods which seems to be faulty and does not provide enough evidence to support the answer. Subjects like biology, chemistry, physics, etc. deal with the concept of scientific methods.

The complete question is as follows:

Which of the following is NOT an example of pseudoscience?

BiologyAstrologyChemistryPhysicsMedicine.

Therefore, Biology, Chemistry, Physics, and Medicine are not classified under the category of Pseudoscience.

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Question 3 of 10
What was the purpose of treating the radish seeds for the lab "Radical
Radishes" with radioactive cobalt-607
O A. To cause mutations in the radish embryos
B. To hybridize normal radish DNA with a radioactive DNA probe
C. To kill all the living microorganisms on the seeds
D. To produce labeled probes with radish DNA
SUBMIT

Answers

The purpose of treating the radish seeds for the lab "Radical Radishes" with radioactive cobalt-607 is to hybridize normal radish DNA with a radioactive DNA probe. Thus, the correct option is B.

What are Probes?

Probes may be characterized as a single-stranded sequence of DNA or RNA manipulated to explore its complementary sequence in a sample genome.

The radioactive elements in the research are used for hybridizing the radioactive probes that are labeled in the genome sample which is under investigation.

Therefore, the correct option is B.

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Polyploidy is the condition of having a multiple of the normal set of chromosomes. What does polyploidy result in? a. geographic isolation b. hybridization c. reproductive isolation d. mutation​

Answers

Answer:

c.

Explanation:

c. reproductive isolation

Which of the following species of fish have cartilaginous skeletons?

Answers

What are the options?

What primary tissue type comprises the highlighted structure

Answers

The primary tissue type comprises the highlighted structure is nervous.

What is the tissue nervous?

Nervous tissue is a communication tissue, capable of receiving, interpreting and responding to stimuli. Nerve tissue cells are highly specialized in processing information. Neurons transmit nerve impulses and glial cells collaborate with nerve impulses.

In this case, nerves are structures formed by bundles of nerve fibers, which are part of the peripheral nervous system and act ensuring communication between different parts of the body and the central nervous system.

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Which is the most likely explanation for the change? the beetle population moved to a greener habitat. a natural disaster almost caused the extinction of the population. the beetle population’s food sources decreased dramatically. a mutation resulted in a new color of insect.

Answers

The correct answer is D ie. a mutation resulted in a new color of insect.

A mutation is a change in a gene's structure, which is how inheritance works. Deoxyribonucleic acid (DNA), a lengthy molecule made up of units referred to as nucleotides, is the substance that makes up genes. Each nucleotide is constructed around one of four distinct bases.Due to population genetic variability, the population of lady beetles has changed over the generations (also called genetic diversity).The color gene of insect carapaces is the gene that has undergone diversification in this instance. In this example, there are two alleles (one for the green color and the other for the yellow color).

Hence , the answer to this question is option D

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Which of the following is not true about the distribution of species? a. A species’ native range does not include areas where it was introduced by humans. b. Some species have a range they inhabit only for breeding. c. Seasonal ranges include areas where species are found for part of the year. d. All the organisms in an ecosystem share distribution patterns.

Answers

Answer:

D is the right answer ....

Answer:

d

Explanation:

The Cordyceps fungus infects ants and make the ants act like what pop-culture type of undead creature?

Answers

Ants that have been infected by the Cordyceps fungus exhibit zombie-like behaviors, according to popular culture.

What do you mean by parasitism?

In this particular relationship, one species benefits while the other does not.

Ants and the Cordyceps fungus have a parasitic connection in which the ants become infected and take on the appearance of zombies.

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Which lipoprotein is made inside the small intestinal cells and transports dietary fats through the circulatory system to the liver and other tissues?.

Answers

Answer:

Chylomicrons

Explanation:

These are big triglyceride-rich particles produced by the colon that help transport dietary triglycerides and cholesterol to peripheral tissues and the liver.

How many hectares of tree cover did the planet lose last year?.

Answers

Answer:

googIe

Explanation:

ezzzzzzzzzzzzzzzzzzz

Decussation of pyramids refers to crossover of major motor tracts in the ________ region of the brain

Answers

The decussation of pyramids refers to crossover of major motor tracts in the medulla oblongata region of the brain.

What is medulla oblongata?

The medulla oblongata is the bottom most part of the brain.

It serves as the point where the brain and spinal cord connect, making it a key conduit for nerve signals to and from the body.

It also helps control vital processes like your heartbeat, breathing and blood pressure.

Thus, the decussation of pyramids refers to crossover of major motor tracts in the medulla oblongata region of the brain.

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how do all viruses differ from bacteria?

Answers

All viruses differ from bacteria in the sense that viruses cannot reproduce outside of a living host but bacteria can.

What are viruses and bacteria?

Virus is a submicroscopic, non-cellular structure consisting of a genetic material (DNA or RNA) surrounded by a protein coat called capsid.

A bacterium cell, on the other hand, is a single celled organism with cell walls but no nucleus or organelles.

A virus requires a living host cell to replicate while a bacterium can replicate itself irrespective of a living host.

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The given graph shows the amount of waste generated, dumped and treated in percentage. Identify the reason of low success rate of waste management process. ​

Answers

Waste disposal and waste management are significant problems in today's world. Garbage generation and disposal pose a real threat, resulting in server environmental issues. The issue is not with biodegradable or recycled waste. We recognize the need to reduce non-biodegradable waste. In this only 15% of urban waste is processed, and less than 60% of waste is collected from households.  The correct option is d.

What is waste disposal?

Waste disposal is the collection, processing, recycling, or disposal of human society's waste materials. Waste is classified according to its source and composition.

Waste disposal and waste management are significant problems in today's world. Garbage generation and disposal pose a real threat, resulting in server environmental issues.

The issue is not with biodegradable or recycled waste. We recognize the need to reduce non-biodegradable waste.

In this only 15% of urban waste is processed, and less than 60% of waste is collected from households.

The missing options of the question are attached below

Thus, the correct option is d.

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is it important to build cities by cutting down all the trees and clearing the forest for the country?​

Answers

Answer:

At one instance when polution is at its peak we can think that it is not right to cut trees to build cities and factories

but at the same time there are so many peoples .where they will live if there were no cities as people usually migrate from village to city for job and employment.

When a fish swims from salt water into fresh water, its cells react by:
A. gaining water and swelling.
B. dividing to increase surface area.
C. fusing to decrease surface area.
D. losing water and shrinking.​

Answers

When a fish swims from salt water into fresh water its cells react by losing water and shrinking.​ The correct option is D.

What is fresh water?

Glaciers, lakes, reservoirs, ponds, rivers, streams, wetlands, and even groundwater contain fresh water.

These freshwater habitats cover less than 1% of the world's total surface area but are home to 10% of all known animals and up to 40% of all known fish species.

When a fish swims from salt water into fresh water its cells react by losing water and shrinking due to osmosis.​

Thus, the correct option is D.

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A fish swims from salt water into fresh water, its cells react by gaining water and swelling. Thus, option "A" is correct.

What is osmosis?

Osmosis is the movement of water through a semipermeable membrane from an area of ​​low solute concentration to one of higher solute concentration to establish an equilibrium.

For example, The solutes are solids that dissolve in water and form ions, such as salts (NaCl) and sugars, these solutes are also found the cell’s cytoplasm.

Thus, option "A" is correct.

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Other Questions
What is the equation of the line?y=13xy=13xy = 3xy=3x He also believes that employees further up the corporate ladder cheat more than those down below. He got this idea after delivering for years to one company spread out over three floorsan executive floor on top and two lower floors with sales, service, and administrative employees (Feldman wondered if perhaps the executives cheated out of an overdeveloped sense of entitlement. What he didnt consider is that perhaps cheating was how they got to be executives.)Which best describes the type of reasoning the excerpt uses? PLS HURRY What countries were allied in World War I and opposed in World War II? Russia and Germany Germany and Britain France and Britain America and Italy Sanjay decides to go swimming in the lake in early May. He starts to get into the lake, but the water feels extremely cold. He stands in the cold water for a few moments, then slowly moves forward, easing the rest of his body into the water. After a few minutes, he feels quite comfortable; the water no longer feels too cold to him. This decline in sensitivity to a constant stimulus that Sanjay has experienced is called: Looking at the graph (photo attached), what is the independent and dependent variable? Question 19 of 30Why does Hess's law allow you to determine the enthalpy change of areaction?A. It states that the enthalpy of any reaction can be determined usinga bomb calorimeter.B. It states that the change in enthalpy is independent of the pathwaythe reaction takes to get to the products.C. It states how the equilibrium constant is related to the enthalpychange.D. It states that the change in enthalpy depends on the reactionpathway between the products and the reactants. the primary coil of a transformer has 480 turns, and the secondary has 112 turns. when an ac voltage of 28.0 v is applied to the primary, what is the output voltage in the secondary? if the ratio to cats to dogs at the city pound is 92 to 144. which statement describes this relationship? What if you had just watched a breaking battle? Write a journal entry describing the event. Be sure to use details from the Article. A scale model of a statue has a height of 20 cm. The real statue has a height of 2 m. The model and statue are both made of the same stone which has a density of 1.8 g/cm3. The mass of the real statue is 104.4 kg. Find the volume of the model in cm3 Match each number on the map to the correct nation. Which table of ordered pairs represents a proportional relationship? What document did Justice Black criticize as part of his argument in thedissent? A. The Bill of RightsB. The majority opinionC. The Declaration of IndependenceD. The First Amendment Complete the reading and any interactives for this lesson.Review your 411 File for this lesson.answer and respond to two classmates in the Discussion Area.Complete and submit "05.03 Keep the Peace." Include a copy and paste of your initial posting and the threads of the two students to which you replied.For complete directions on how to complete assignments, submit work, and attach files, please go to the Course Information Area. The coefficient of 8 2N is The purpose of the repetition in line 3 is to?A) Establish the time when Lady Macbeth should have died.B) Indicate Macbeths increasing panic.C) Emphasize the petty pace of the passing time.D) Imitate the strutting and fretting of the poor players hour upon the stage. what is the correct order for cleaning food-contact surfaces write equation of the log base of 3 HELP FAST PLEASE! If a reaction takes place and the theoretical yield is 73 g and the actual yield is 62 g, calculate the percent yield.Choices:A. 76%B. 1.16%C. 116%D. 85% a. Worldwide, what percentage of human water usage does industry account for? (Note: This relates to water usage now, not water supply.) What is the percentage in the United States?