Which describes vestigial structures and how they relate to evolution?

Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.

Humans and dogs have similar bone structures in their forelimbs, indicating a common ancestor

Dolphins and birds have structures that are adapted for swimming, but the structures did not evolve the same way.

The DNA of mice and chickens shows similar patterns, suggesting that the two species are related

Answers

Answer 1

Answer:

The correct answer is - Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.

Explanation:

Minimal structures are the structures in a life form which are not, at this point being used. In past these minimal structures played out some significant capacities in those life forms however bit by bit because of development now they have become non utilitarian in their body.

Reptiles and snakes both are reptiles yet reptiles have a practical rear appendage which causes them in slithering, snakes have been developed from reptiles however so as to move they creep instead of creeping so their rear appendage doesn't serve any capacity in development. Rear appendages are available in their body as a minimal organ.

Thus, The correct answer is - Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.

Answer 2

Answer: Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.

Explanation:

E d g e n u i t y Cumulative Exam 2020


Related Questions

puggle is a type of dog first produced by mating two other types of dog, a pug and a beagle. This process is an example of

Answers

Answer:

hybridation. Puggle is a combination of two different species of dogs and the process of combining two different species to produce a new species is known as hybridation.

Which would lead to an increase in biodiversity?
A. planting more trees
B. mining to obtain minerals
C. releasing sewage (waste water from flushing toilets, etc.) into lakes
D.not allowing fishing during breeding season

Answers

which would lead to an increase in biodiversity?

A.planting more trees

Answer:

A

Explanation:

carbon 4 sublimes at a negative 78 degrees Celsius .It 8s called dry ice why is it called dry ice ​

Answers

Sublimation is a straight transition from solid to gas. This occurs in dry ice as it the ice, which is a solid state, does melt and have a liquid form. Therefore it is called dry ice as it doesn’t produce any liquid

What does polymerase chain reaction (PCR) do?

Answers

Answer:

Makes more copies of a sample of DNA

Explanation:

Apex

How does osmoregulation take place in trout fish?

Answers

Answer:

The gills actively uptake salt from the environment by the use of mitochondria-rich cells. some marine fish, like sharks, have adopted a different, efficient mechanism to conserve water, osmoregulation. they retain urea in their blood in relatively higher concentration.

Explanation:

From where do most producers get energy?
1. the sun
2. decomposers
3. consumers
4. other producers

Answers

Producers get the most energy from the sun . They get some food from decomposers but the sun is their main energy source

Answer:

Energy is the ability to do work. ... The energy of the sun is first captured by producers (Figure below), organisms that can make their own food. Many producers make their own food through the process of photosynthesis. The "food" the producers make is the sugar, glucose.

Explanation:

hope this helps you :)

the roots nodules of leguminous plants contain a parasitic bacterium it is true or false​

Answers

Answer:

false

Explanation:

Answer:

False

Explanation:

What combination of sex chromosomes is shown in the image?
1.
A. XXY
B. XY
C. XX
D. YY

Answers

Answer:

xy is the answer of your question

Answer:XY

Explanation:

What contracts to pump blood out of the heart? the atria the veins the ventricles the arteries

Answers

Answer:

the ventricles

Explanation:

2 Points
Which example involves a cell membrane receiving and sending messages?
O A. A fox chases a mouse through the forest.
O B. A cell tells other cells that danger is near.
O C. A transport protein allows glucose to enter a cell.
O D. A cell membrane allows water to enter the cell.

Answers

B .a cell tells other cells that danger is near

Answer:

C.

Explanation:

A cell membrane is selectively permeable with certain molecules, such as Glucose.

I need help to answer these questions as well please

Answers

Answer:

A

Explanation:

B

B

U know theres no need for explanation

The diagram provides an overview of how dialysis works. Using this model as an example, explain how the diyalysis machine performs the function that's normally performed by the kidneys

Answers

Wanna help but where’s the diagram?

Answer:

The main job of a kidney is to filter toxins and waste products from the blood. In dialysis, the machine takes in blood from the artery and pumps it through a semipermeable membrane. This function is similar to that of the capillaries in the kidney. They allow waste products to filter from the kidneys. The waste excretes into a bag in a manner similar to how the bladder excretes urine from the body. The clean blood pumps back into the body and is carried back to the heart via a vein.

Explanation:

that's the answer that shows when you submit it

to test for lipid is heat needed????????

Answers

Answer:

No

Explanation:

Place two spatulas of the food sample into a test tube or 1 cm3 if the sample is liquid.

Add 2 cm3 of ethanol to the tube. Cover the end of the tube and shake the tube vigorously.

Allow the contents to settle.

Pour the liquid from the top of the mixture into a test tube half-filled with water.

Record the level of the food and whether the water is cloudy or clear.

As you can see no heat is needed

An earthquake originated in New York State. The P-wave travel time for this earthquake was recorded in the data table below for four widely separated seismic stations, A, B, C, and D If the first P-wave arrived at seismic station A at 10hrs:22min:30sec, what was the origin time for the earthquake?

Answers

The provided question is incomplete as it lacks the essential information to give answer. however, the complete question is attached as image.

Answer:

The correct answer is option :  c. 10hrs: 14min: 10sec.

Explanation:

The question provides the following information to answer the question:

The P wave takes time to reach Seismic station A = 8 min:20 sec

P-wave arrived at seismic station A at : 10hrs:22min:30sec

So, the origin time of earthquake would be: 10hrs:22min:30sec - 8 min:20 sec = 10hrs: 14min: 10sec.

Thus, the correct answer is :  10hrs: 14min: 10sec.

A spring was at its resting position where it is attached to a wall at its left side and a block at its right side as shown below. The spring constant is k=75.0\,\dfrac{\text N}{\text m}k=75.0

m

N



k, equals, 75, point, 0, start fraction, start text, N, end text, divided by, start text, m, end text, end fraction. The block is moved leftwards and the spring's right end is displaced from the position of 0.250\,\text m0.250m0, point, 250, start text, m, end text to 0.150\,\text m0.150m0, point, 150, start text, m, end text where it is held in place. All positions are measured from the origin OOO of the wall.

Answers

Answer:

The force of spring will be "3.75 N". The further explanation is given below.

Explanation:

The given values are:

Spring constant, K = 75.0 N/m

x₁ = 0.200 m

x₂ = 0.150 m

So that,

⇒ [tex]x=x_{1}-x_{2}[/tex]

⇒    [tex]=0.200-0.15[/tex]

⇒    [tex]=0.05 \ m[/tex]

Now,

Force of spring will be:

⇒  [tex]F=K\times x[/tex]

On putting the estimated values, we get

⇒      [tex]=75\times 0.05[/tex]

⇒      [tex]=3.75 \ N[/tex]

Answer:

−8.25N

Explanation:

Hooke’s law says the restorative spring force is directly proportional to the change of the spring length x on top, but is opposite in direction to the change in spring length.

Which summary below correctly describes what occurs during transcription?
A DNA template is used to create an mRNA strand.
An mRNA template is used to create a DNA strand.
A DNA template is used to create a ribosome.
An mRNA template is used to create a tRNA strand.

Answers

Answer:

A DNA template is used to create an mRNA strand.

Explanation:

Transcription basically means a written or printed representation of something, if we connect that analogy to DNA, we are using the DNA as our template to write/create an mRNA strand out of it, basically transcribing the DNA.

The correct answer is a DNA template is used to create an mRNA strand.

What is the role of DNA template?

The DNA template is used by RNA polymerase to produce a strand of RNA with a nucleotide sequence that is the same as the coding strand for the production of functional RNA units and mRNA for making proteins.

How do you get mRNA from DNA?

mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II.

Learn more about transcription of DNA here : brainly.com/question/1048150

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emphysema and asthma are respiratory disorders that may both be attributed to smoking; they also share many symptoms in common. As a physician, how would you distinguish between these two disorders when diagnosing a patient? explain.

Answers

Emphysema happens when the tiny sacs in your lungs (called alveoli) are damaged. Chronic bronchitis is when the tubes that carry air to your lungs (bronchial tubes) get inflamed. Smoking is the most common cause of those conditions (and COPD).

Some people have asthma and COPD at the same time. If you have symptoms of both diseases, your doctor may call it asthma-COPD overlap syndrome.

People who smoke or breathe in pollution or chemicals at work for many years have higher chances of having COPD. That's why the condition often starts in middle age or later in life.

Asthma is sometimes caused by gene changes that are passed down through families. If one of your parents has the disease, you're more likely to have it. Symptoms often start in childhood.

Since asthma and COPD both make your airways swell, they both can cause shortness of breath,coughing, and wheezing.

One main difference is that asthma typically causes attacks of wheezing and tightness in your chest. COPD symptoms are usually more constant and can include a nasty cough.

To figure out which condition you have, your doctor will start with a physical exam and questions about your medical history. They’ll look at your nose and throat and listen to your lungs with a stethoscope. Your doctor will also want to do a test called Spirometry that checks how well your lungs work.

Explain photosynthesis in a paragraph.

Answers

Answer:

Photosynthesis is the synthesis of glucose from carbon dioxide and water in the presence of sunlight and chlorophyll with oxygen as a by-product it occurs in green plants,photosynthetic bacteria and some algae it is an anabolic(building) process and nearly all life depends on it it comprises many coordinated biochemical reactions that are necessary for the survival of the species it is divided into two phases 1 light reaction(Z-scheme) 2 dark reactions(Calvin cycle)

Explanation:

I hope this will help you:)

Answer:

Photosynthesis is the process through which autotrophs are bale to produce their own food. The Process is named so because photo means sun's light and synthesis means creating. It involves the Plants or other autotrophs absorbing the sun's light and also carbon dioxide released into the atmosphere by respiration. As a result of Photosynthesis, we obtain what is known as oxygen. This is, in fact, the biproduct of the process. Mainly, Photosynthesis occurs due to the presence of Chlorophyll which give leaves their green colour.

Key:

Autotrophs: Those who have the ability to produce their own food.

Biproduct: The extra result of a scientific equation.

Chlorophyll:  a green pigment, present in all green plants and in cyanobacteria, etc.  

Hope this helps

Put the steps of seafloor spreading in order from first to last.


Magma hardens


Magma pushes upward.


A crack forms


Rock moves outward.

Answers

Answer: a crack forms, magma pushes upward, rock moves outward, magma hardens.

I know this 100% fact

Explanation:

Answer:

Crack forms, Magma pushes upwards, Rock move outward, Magma hardens

Explanation:

:,D

What does it mean if there are two different alleles for a trait?

Answers

Answer:

An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene. An organism which has two different alleles of the gene is called heterozygous.

If a mutation in a gene does not result in a change in protein function, the resulting effect is most likely to be

A.) Neutral

B.) Beneficial

C.) Harmful

D.) None of the above

Answers

A.) neutral
If the protein structure does not change then the function will not be affected either. The resulting effect is neutral because the shape and function was not altered.

what is a placebo or a placebo effect

Answers

Essentially, it’s the idea that your brain has the ability to convince your body that a fake treatment is the real thing. For example, sugar pills are commonly used in control groups during clinical trials. An improvement of one’s symptoms is observed, despite the use of a non-active treatment. It’s believed to occur due to psychological factors, such as expectations or classical conditioning.

How are viruses different from bacteria?

Answers

Answer:

Your correct answer is option A. Viruses contain only RNA

Explanation:

Viruses are smaller than any bacteria. In fact, the largest virus is actually way smaller than the smallest bacterium ever. All viruses have a protein coat and a core of genetic material of either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to the cells. In most cases, they definitely reprogram the cells to make new viruses until the cells burst and die. In other cases, they turn normal cells into malignant or cancerous cells. Also unlike bacteria, most of the viruses do indeed cause disease and they are quite specific about the cells they attack.

The correct statement that highlights the difference between viruses and bacteria is "Viruses cannot survive outside a host." The correct option is B.

Viruses are obligate intracellular parasites, meaning they require a host cell to carry out their life cycle.

They do not possess the necessary cellular machinery or metabolic processes to replicate on their own.

Viruses invade host cells and hijack their cellular machinery to reproduce.

When a virus infects a host, it injects its genetic material into the host cell.

The viral genetic material then takes control of the host cell's machinery and directs it to produce new virus particles.

Viruses can have either RNA or DNA as their genetic material, but not both. Viruses have RNA genomes, while others have DNA genomes.Viruses are significantly smaller than bacteria. Viruses are typically composed of a nucleic acid core (either RNA or DNA) surrounded by a protein coat called a capsid. Viruses are not cells and do not have cellular structures. They are considered acellular particles because they lack the essential characteristics of living organisms.

Thus, the correct option is B.

To know more about Viruses, click here:

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please I need help to answer these questions

Answers

Answer:

B. Directional Selection

Explanation:

By doing some research I found out what most of this means so let's do my favorite process, the process of elimination

A. Disruptive

Disruptive selection produces two or more species with two different traits nothing in the question says two different scorpions where formed one with big pinchers and another with big stingers no it just talks about them slowly forming big pinchers

C. Stabilizing

Stabilizing selection is when two species are produced with more similar traits nothing vastly different, I would consider them forming really big pinchers to be an extreme

What happens to a population if its growth exceeds its carrying capacity?

Answers

The population crashes since its capacity is maximized

1. What are the end products of photosynthesis?

2. What is Transpiration ?

3. What are the signifance of transpiration ?

4. Give One example for each of the following modified leaves:
a. Leaf Tendrils.
b. Spines
c. Scale Leaves

5. Give some names of insectivous plants.

6. Define Vegeative Propogation ?


Please help me asappp !! Now I need help :)))​

Answers

Answer:

1. Glucose And Oxygen.

2. Transpiration is the process by which water is lost in the form of water vapour by evaporation from the surface of leaves and other serial parts of plant .

3. A. Cooling Effect : The water keeps on evaporating from the leaf surface during transpiration . The heat required for evaporation of water is obtained from the plant itself and thus, the plant cools itself when it is hot outside.

B. Transpiration Pull : As water evaporates from the leaf surface, the roots pull up more water from the soil to make up for the water loss during transpiration .As a result, important mineral salts are also brought along with the water. These salts are necessary for the growth of the plant .

4. Leaf Tendrils : Sweet Pea

Spines : Cactus

Scale Leaves : Onion

5. Pitcher Plant, Venus FlyTrap, Blodderwort

6. Normally plants propogate with the help of seeds contained in the fruits . But some new plants may also be produced from other part of the plant such as the roots, stems, and leaves . This type of reproduction is called vegetative propogation .

E.g. = Bryophyllum .

Explanation:

Hope it works out !!

Your classmate describes a growing baby as “a ball of multiplying cells that eventually grows large enough to form a baby.” Explain why this statement isn’t completely accurate.

Answers

Answer:

Please, see the answer below.

Explanation:

The statement is inaccurate because a growing baby is not just a ball of multiplying cells that eventually grows large enough to form a baby.

After fertilization and the formation of a single-cell zygote, the zygote continues to divide to form a ball of cells. However, at some points, the cells start to differentiate to give rise to various organs that make up the baby.

Without differentiation, there is not way the dividing cells will give rise to baby. Hence, a growing baby should be rather viewed as a ball of multiplying cells that eventually differentiates to form a baby.

Answer: Embryos start as a ball-like structure of rapidly dividing cells. However, at a certain point in development, these cells diversify and bind together to form larger structures, such as tissues, organs, and, eventually, full systems.

Explanation: Edmentum Answer

Dyes (stains) are commonly used in the biology lab to increase the
O magnification
O resolution
O density
O contrast

Answers

Answer:

Resolution

Explanation:

I am sorry I don't know whether it is correct. I just guessed. I think it is right....

The specific purpose or place for an organism within an environment is called their what?
a.population
b.limiting factor
c.abiotic factor
d.niche

Answers

the answer is d. niche
hope this helps
d. is the right answer

What type of rock is pictured here? large crystals coarse texture evidence of rapid cooling fine texture evidence of slow cooling small crystals

Answers

Answer:

Large Crystals, course texture, and I think evidence of slow cooling

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From which plant can benzoic acid be obtained from? Sophie is making a rectangular pen for her rabbit. The pen is 4 feet wide and 6 feet long. What is the area of the pen? what two integers would 4.89 fall between? Last month, Carla's neighbors paid her to take care of their cat when they went onvacation. She spent $4 of her earnings on an afternoon snack and $12 on a new book. Afterward,she had at least $5 left. How can you best describe how much Carla's neighbors paid her?Select the correct choice below and fill in the answer box to complete your choice.OA. They paid her exactly $OB. They paid her at least $. C. They paid her at most $ King John was unpopular because he refused to tax the church in England. tried to take away the rights of English nobles. allowed the English nobles to grow too powerful. refused to fight Englands enemies in France. Please answer this correctly without making mistakes Ms. Johnson has 20 students. 3/5 of her class has at least one pet. How many students in her class have pets? A family buys 5 airline tickets online. The family buys travel insurance that costs $18 per ticket. The total cost is $875. Let x represent the price of one ticket. What is the price of one ticket? HELP!!!!!!!!!!!!!!What is happening to the universe today?A.)The universe is the same as it was billions of years ago.B.)The universe is expanding.C.)The universe is contracting. The campfire looked nice in the dark.Which is the best way to revise this sentence using descriptive detail and sensory words? 9.75t + 9 = 13.5t + 12 what is the solution for t A triangle has two sides of length 8 and 15. What is the largest possible whole-number length for the third side? List five rational numbers between -4/7 and 1/2 Given the sequence rn defined recursively below, find r4.r1=2rn=4rn13 , , - Franco made a dozen muffins for his party. Upon taking them out of the oven he noticed that 2 of the muffins were badly burnt. Franco served 7/10 of the remaining muffins. Which equation shows the fraction of the non burned muffins that remains? How does the cartoonist use analogy in the cartoon Patty Cake and Jim Nasium are flying a kite. Patty is 200 m away from Jim who is holding the kite. Facing Jim, Patty finds the angle of elevation of the kite is 40 degrees . If the kite string makes an angle of 85 degrees with the ground, find the amount of string let out by Jim. the volume of a cylinder is 210 cm with a radius of 14 cm find the curved surface area if the formula for curved surface area is2rh A hyperbola in the form (x ^ 2)/(a ^ 2) - (y ^ 2)/(b ^ 2) = 1 has a center, vertices, and foci that fall along a horizontal. Please select the best answer from the choices provided. True or false