Are similarities between sharks and dolphins homologous or analogous?.

Answers

Answer 1

There are many similarities between sharks and dolphins such as countershading and presence of dorsal fins, two pectoral fins and a tail.

Are similarities between sharks and dolphins?

Both sharks and dolphins have countershading in which their bellies are lighter than their backs. Dolphins and sharks both have dorsal fins on their backs, two pectoral fins, and a tail.

So we can conclude that similarities between sharks and dolphins are countershading and presence of dorsal fins, two pectoral fins and a tail.

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Answer 2

The similarities between sharks and dolphins are : Analogous

What are analogous structures ?

Analogous structures are similar structures present in different species that do not share the same/common ancestor.

The similarities between sharks and dolphins are streamlined bodies and the possession of fins and they are analogous structures because they evolved differently for sharks and dolphins as they do not share a common ancestor.

Hence we can conclude that  The similarities between sharks and dolphins are : Analogous

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Related Questions

When studying personality traits, someone who is quiet, reserved, and withdrawn will score low on the ________ trait.

Answers

According to the research, someone who is quiet, reserved, and withdrawn will score low on the extroversion trait.

What is the extraversion trait?

It is a personality trait that makes it easy for leaders to influence their subordinates.

This trait is characterized by sociability, high energy, and/or talkativeness, that is, they are very communicative and sociable.

Therefore, we can conclude that according to the research, someone who is quiet, reserved, and withdrawn will score low on the extroversion trait.

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Does the high concentration of the morrison formation mean that more organisms lived here 150 mya compared to other other parts of the country

Answers

Answer:

Jurassic Fact: The Morrison Formation is named after the town of Morrison, Colorado.

Explanation:

The Morrison Formation is a rock unit from the Late Jurassic (155 million years ago-148 million years ago). It extends throughout the Western United States and often contains fossils of dinosaurs such as Camarasaurus, Diplodocus, Apatosaurus, Stegosaurus, Allosaurus, and others. Although the Morrison was deposited in a wide variety of environments, it is the river channels that are most likely to contain dinosaur bones. Quiet water lake and pond deposits are best for preservation of the small delicate skeletons of salamanders, frogs, lizards, and others. In order for a fossil to form, the body must be buried quickly before weather conditions and scavengers have a chance to scatter or otherwise destroy the bone. In the park you will also see "Rainbow Beds" of the Morrison, which are mostly crumbly grey and maroon mudstones. They are pretty to look at, but do not often contain dinosaur fossils.

The high concentration of the Morrison formation means that more organisms have lived here 150 mya compared to the other parts of the country. The given statement is true.

What is Morrison Formation?

The Morrison Formation is famous for its dinosaur fossils, which have been collected for more than a century ago on this planet. This has began with a find near the town of Morrison, Colorado, in 1877. Through radiometric dating it was found that the Morrison Formation has taken place between 148 to 155 million years old on the planet.

The Morrison Formation is a rock unit from the Late Jurassic period. It extends throughout the regions of Western United States and contains the fossils of dinosaurs such as Camarasaurus, Diplodocus, Apatosaurus, Stegosaurus, Allosaurus, and others.

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Identifying the independent and dependent variables in an experiment will help you better interpret and convey results. What is the difference between the independent and dependent variables in an experiment?

A. The independent variable is what is altered and the dependent is what is measured.

B. The independent variable is always a number, and the dependent variable is never a number.

C. The dependent variable is what the investigator controls, and the independent variable is what happens as a result of this.

D. The dependent variable is typically found in the first column of a table, and the independent variable is typically found in the second column.

Answers

The answer is C

Explanation- The independent variable is what causes it and it values in other study’s while the dependent variable is the effect.

Hope this helps :)

The main difference between the independent and dependent variables in an experiment is that the dependent variable is what the investigator controls, and the independent variable is what happens as a result of this. Thus, the correct option is C.

What are the different variables of an experiment?

A variable is any factor, trait, or any condition which can exist in differing amounts or types in the experimental setup. There are different types of variables which include independent variables, dependent variables, categorical and continuous variables.

The dependent and independent variables are the most important variables in an experiment. The main difference between these two variables is that the dependent variable is what the investigator controls while the independent variable is what happens as a result of this.

 

Therefore, the correct option is C.

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Which of these types of blood cell is not a type of white blood cell?
A. Lymphocyte
OB. Neutrophil
OC. Platelet
O D. Macrophage

Answers

Answer:

Platelets

Explanation:
________________________________________________________
Platelets are not a type of white blood cell because they only help treat wounds and slow down/stop you from bleeding.

they don't remove any germs. they only help treat your wound.
________________________________________________________

Hope this helped :)

This type of blood cell is not a type of white blood cell is C. Platelet.

What is a platelet?

Platelets are not a type of white blood cell. They are actually small, colorless cell fragments that are involved in the clotting process of blood. White blood cells, on the other hand, include various types such as lymphocytes, neutrophils, and macrophages, which play important roles in the immune response and defense against infections.

Platelets, also known as thrombocytes, are small cell fragments that circulate in the blood. They are formed in the bone marrow along with other blood cells. Platelets play a crucial role in hemostasis, which is the process of blood clotting to prevent excessive bleeding.

When there is an injury or damage to blood vessels, platelets are activated and aggregate at the site of injury. They form a plug to seal the damaged blood vessel and initiate the clotting cascade, which leads to the formation of a blood clot.

The correct answer is C. Platelet.

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What could be a good effect of a mutation?
A. DNA does not function properly.
B. DNA is destroyed.
C. Less variety in a population.
D. More variety in a population.

Answers

Answer:

The answer is D

Explanation:

because there different type which creates variety

I really need help my grades go in tonight and this is my last day you will get full points

Answers

Answer:

the flat horizontal lines indicate phase change

Explanation:

As the substance changes phase from solid to liquid and liquid to gas, the temperature remains contant due to latent heat energy.

Energy is being used to break the intermolecular bonds during phase change, therefore there is no change in temperature.

How does the circulatory and respiratory system work together?

Answers

They work together to provide oxygen to the body .

differentiate between uniform and nonuniform motion​

Answers

Answer:

Uniform motion is the motion in which body covers equal distances in equal intervals of timenonuniform motion is the motion in which body covers unequal distances in equal intervals of time

why birds are kept in aves class.?​

Answers

Answer:

This is mostly because there were several non-bird dinosaurs that had wings. One of these was the Caudipteryx.

this should help

Answer:

living species evolved from reptiles, not mammals. However, they have adapted to fly. Aves are warm-blooded species with scales on their feet.

Que seres vivos son heterotrofos ?

Answers

un organismo que deriva sus requerimientos nutricionales de sustancias orgánicas complejas.

Albinism is a recessive trait. A man and woman are both of normal pigmentation, but both have one parent who is albino (without melanin pigmentation). What is the probability that their first child will be an albino

Answers

Answer:

use the generation tree starting by the grandparents as first generation and the parents as second generation until the child as third generation

The man and woman both have albino parents (aa) so one of their alleles will be for the albino trait (a). But since they both have normal pigmentation, their other allele must be for the dominant pigmented trait (A), making their genotypes heterozygous (Aa). If you make a quick punnet square with each of their genotypes on a side, there is a 1/4 or 25% chance that the combination of their alleles will result in an albino (aa) child.

1. Why is Maya Lim excited about classroom bioprinters? 2. What parts of Maya Lim's job as a chemical engineer sound interesting to you?

Answers

Classroom bioprinters can be used to print literally any biological object, whereas a chemical engineer is responsible to use chemistry to develop processes and devices.

What is a bioprinter?

A bioprinter is a device that combines cells and transcriptional growth factors, in order to generate structures similar to tissues and organs.

Moreover, a chemical engineer is aimed at exploring the chemical properties of matter to develop processes and devices.

In conclusion, classroom bioprinters can be used to print literally any biological object, whereas a chemical engineer is responsible to use chemistry to develop processes and devices.

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Which of the following is a way that minerals are used?
a. industry
b. construction
c. technology
d. all of the above
Please select the best answer from the choices provided
O

Answers

Answer:

maybe its are technology??

what are the functions of plasma membrane??



btw hii​

Answers

Answer:

Hi

Explanation:

It separates the content of cell from their external environment.

It controls the entry and exit of materials in nd out of cell

After three rounds of mitosis, how many new cells will have been created from one parent cell?

Answers

Answer:

There would be 8 after 3 rounds of mitosis

Explanation:

I looked it up :)

Which part of a DNA molecule is responsible for the direct coding of specific traits in anorganism?

Answers

The part of a DNA molecule responsible for the direct coding of specific traits in an organism is the nucleotide sequence.

How is a DNA molecule structured?

The DNA molecule is the biological molecule that stores genetic information in living organisms.

The DNA molecule is made up of three major components in its structure:

Five carbon sugarNucleotide basesPhosphate group

The five carbon sugar is deoxyribose while the nucleotide bases are four in number as follows:

AdenineGuanineThymineCytosine

These nucleotides are responsible for the direct coding of specific traits in an organism.

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How are plants and animals similar and different as to how they transport molecules throughout their bodies?

Answers

Answer:The needs of a plant and animal are similar in some aspects and very different in others. Both need to transport food molecules around the organism but plants, for instance, do not use the transport system to fight disease.

Explanation:

Most earthquakes happen

Answers

Answer:

Earthquakes take place miles underground, and can happen at any time in any weather. Big earthquakes always occur early in the morning.

Explanation:

Type the correct answer in each box. Use numerals Instead of words. Express your answer in scientific notation.
What numbers do i put in tbe bixes

Answers

The number of atoms that remains at the said time is 3.76 * 10^11 atoms of Cl-36 and 2.62 * 10^12 atoms of Ar-36.

What is the half life?

The term half life is used to explain the time taken for only half the number of radioactive atoms to remain.

Given that;

No = 3 * 10^12 atoms

t1/2 = 3.01 8 10^5 years

t = 9.03 * 10^5 years

Thus;

k = 0.693/3.01 * 10^5

=2.3 * 10^-6 year-1

Now;

N=Noe^-kt

N = 3 * 10^12e^(2.3 * 10^-6 * 9.03 * 10^5)

N = 3.76 * 10^11 atoms

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A calorie is a measure of energy. Assume that there are 1000 calories of plants in a chamber. If grasshoppers (a plant eating insect) eat all of the plants and a bird eats all of the grasshoppers, how many calories did the bird actually absorb if only 10% of the energy is transferred between each level.

Answers

Only 10 calories did the bird actually absorb when there is a total of 1000 calories were stored in a plant chamber.

What is Calorie?

A calorie may be defined as a unit of energy that we get from food products and burn during a physical workout.

According to the 10% law given by Lindeman, if a plant chamber consists of 1000 cal., the amount of energy transferred to herbivores is 10% of 1000 which is 100 calories.

Similarly, the 10% of 100 cal., gets transferred to the next trophic level which is carnivores or secondary consumers. The 10% of 100 is 10 calories.

Therefore, only 10 calories did the bird actually absorb when there is a total of 1000 calories were stored in a plant chamber.

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9. A protein molecule which is denatured, has
a. split into smaller molecules
c. Changed its shape
b. combined with another molecule d. been diluted

Answers

Answer: B. combined with another molecule

Explanation:

i just took the test

Proteins are macromolecules composed of amino acid chains joined through peptide bonds. A denatured protein molecule has changed its shape. Thus, option c is correct.

What is protein denaturation?

Protein denaturation is a process where the proteins under unfavorable conditions like temperature, chemicals, and pressure result in an alteration in their functions.

The basic structural organization of the proteins contains primary, secondary, and tertiary formation that gets altered at high temperatures resulting in the breaking of the covalent bonds and disruption of the amino acid chain.

This results in the protein breaking and forming the primary structure that leads to alteration of the shape and conformation. This change results in loss of the function and activity of the protein.

Therefore, option c. the denatured proteins result in alteration in shape.

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which of the following statements best captures the main point of paragraph 4? a cell is the smallest unit that is truly alive. all cells are surrounded by a cell membrane. cytoplasm is gell-like material that fills all cell. plant cells have cell walls

Answers

Answer:

all cells are surrounded by a cell membrane

B because it’s right and it is what it is

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which factor are the species of birds responding to in the environment?

a.) symbiosis
b.) competition
c.) parasitism
d.) omnivores

Answers

Competition factor are the species of birds responding to in the environment. Thus, the correct option is B.

What is competition?

If numerous bird species eat on the same tree species, there will be fierce competition for food. As a result of the competition, each species will seek out a certain portion of the plant to feed on, most likely the part of the plant where it will be easiest to outcompete the competitors for food.

As a result, we may deduce that the right response is "They have evolved to diverse niches as a result of competition."

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Answer:

simply jus competition


Describe one specific way that HIV makes the body unable to deal with other pathogens and cancer.

Answers

By weakening the immune system, HIV makes a person prone to other pathogens as well as cancer.

What is HIV?

The term HIV stands for the human immune virus. It is a virus that attacks and weakens the immune system of a person thereby making the person very much vulnerable to pathogens.

Thus, by weakening the immune system, HIV makes a person prone to other pathogens as well as cancer.

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Renewable energy

do you think renewable energy is gaining attention and progress is being made to increase the use of harnassing natural renewable power?


what do you think are the barriers that are preventing us from utilizing more renewable energy sources?​

Answers

Answer:

yes it is doing

Explanation:

Renewable sources are those which can use again and again . We should use them to protect our natural resources

The predictable sequence of reactions (alarm, resistance, exhaustion) that organisms show in response to stressors defines the _____ Group of answer choices life events approach. general adaptation syndrome. biomedical approach. cognitive theory of stress.

Answers

Answer:

General Adaptation syndrome

phenomenons that occurs when we observe plant that wilt

Answers

Answer:

The xylem releases all its water

Explanation:

Henry went on a field trip to a national park. He not only observed the aquatic life in the pond, but also the trees, vegetation, and animal’s species on land.
Which type of diversity did Henry come across in the national park? Henry came across the diversity.

Answers

The diversity observed by henry is ecological diversity.

What is ecological diversity?

Ecological diversity is the variation in the ecosystems found in a region or the variation in ecosystems over the whole planet. Ecological diversity includes the variation in both terrestrial and aquatic ecosystems.

Henry observed the aquatic life in the pond, but also the trees, vegetation, and animal’s species on land called as ecological diversity across national park.

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select the incorrect association amoeboid cell - digestion, collar cell - water current, epidermal cell - covering, spicule cell - reproduction

Answers

Spicules is the skeletal structures which occur in most sponges. They provide structural support, as well as determent against predators. Large spicules, visible to the bare eye are called as megascleres, while smaller, microscopic ones are called as microscleres. Spicule cell - reproduction is the incorrect option.

amoeboid cell - digestion

What is amoeboid cell?

Amoeboid cells are the that have capacity to change shape due to the parts of the skeleton of the cell called cytoskeleton and plasma-gel which changes the consistency of the cell's cytoplasm. Amoeboid cells use a pseudopodia, or false foot, to move forward. They carry-out phagocytosis, which is to eat or ingest other cells.

collar cell - water current

The collar cells serve two functions. Firstly, they beat their flagella back and forth to force water through the sponge. The water brings in nutrients and oxygen, while it carries out waste and carbon dioxide. Second, the sticky collars of the collar cells pick up tiny bits of food brought in with the water.

epidermal cell - covering.

The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

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ANSWER CORRECTLY ASAP FOR 35 POINTS!!! ASAP AND GET BRAINLIEST!!!!!

Answers

Answer:

the process that would make them go as dark or light would be because they and blend in better to no the eaten it is called "latrell Selection" so in the Beach mice would stay light because they look like sand but if they were dark they would be easy to see that is why they are not there same thing for the forest but the other way around

if the forest changed to more sandy it would let lighter mice live there to but the dark mice would still live because it is not all sand i like it would be equal amount of dark and light mice because they would both have there spot to hide and just as vulnerable if the switched spots

Hope This Helped  

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The construction crew for a new house will dig a hole in the shape of a rectangular prism for the house's foundation. the hole will be 48ft long, 39ft wide, and 9ft deep. to haul away all of the dirt from the hole, a dump truck will take trips to a nearby landfill. the crew knows the amount of dirt the truck can hold each trip in cubic yards. (a) find the volume of dirt that will be hauled away in cubic yards. use the table of conversion facts, as needed. ____yd3??? (b) each trip, the truck can haul away 11yd3 of dirt. to save gas, the crew wants to take as few trips as necessary to haul all of the dirt away. since all of the dirt needs to be hauled away, the crew might have to take a partial load for one trip. how many trips are needed to haul away all of the dirt? count each trip it makes the same, even if the truck isn't full. _______trips??? c) if it costs $1175 for each trip that the truck makes, how much will it cost to haul away all the dirt? $____ ??? Part DWhat is the difference of the earnings of movies C and D for that week? 21. What motivates a business to set its price at the point where it will make themost money? what is vegetative propagation?? explain in detail on a piece of paper, graph y=3/4x-3 use the graph to find the x-intercept of the line What is the value of 6 in 640.31? Discussion topic studying poetic forms can help you understand poems written in those forms. writing formal poetry, such as a sonnet, can be a fun exercise, almost like completing a puzzle. try doing some research on poetic forms and see which ones appeal to you; explain what draws you to a certain form (such as a sestina or villanelle). what do you think is the essence of good poetry? What is an example of simil Which of the following is a way that minerals are used?a. industryb. constructionc. technologyd. all of the abovePlease select the best answer from the choices providedO What would the most accurate model for the theory of evolution look like? Type your response in the box in this lesson, you will learn about ancient rome. what do you think of when you hear the word rome? list as much information as you can. you can answer in bullet form. How do public goods support private sector markets? Give an example in your school. This was one of my questions, I forgot I had to do this. How can I solve this math problem. how many died in the battle of the battle of Cerro Gordo HURRY!!!!If p -> q is true and q is true, then p is ____ true.-always-sometimes-neverIf p is true and q is true, then ~ p -> ~ q is ____ true.-always-sometimes-never How do you learn more languages how can you kiss how many years are in a year I need help what's the answer Use the excerpt from the press release to answer the question.This press release from the Clinton administration suggests that he believes health care reform is necessary because heath care A. insurance is too expensive. B. facilities lack suitable capacity. C. delivery in the U.S. is unstable and inefficient. D. workers are declining in number and resistant to change. Why did ancient civilizations create mythology?Question 2 options:Mythology explained the unknown and provided answers to their uncertainties. Mythology was created by the ruling class to have power over the working class.Mythology was known to be fake, but they followed along with it anyway.Mythology entertained the ancient civilizations and distracted them from their troubles.