Dolphin fins and shark fins: _________

a. are probably built by different genes.
b. are an example of divergence.
c. suggest these two populations could interbreed.
d. are evidence that adaptive evolution is mainly driven by random forces.
e. None of the above is correct.

Answers

Answer 1

Answer:

a. are probably built by different genes.

Explanation:

Although sharks and dolphins are aquatic animals belonging to the vertebrate group, sharks are fish while dolphins are mammals. Sharks belong to the class Chondrichthyes which are fish that have a cartilaginous skeleton. On the other hand, dolphins are mammals (class Mammalia) which are animals mainly characterized by the presence of mammary glands. In consequence, both species are not closely phylogenetically linked, thereby those genes involved in the development of the integumentary system (skin) in both species are expected to be different.


Related Questions

What are the charges both inside and outside of the neuron after the simulation is complete?

Answers

Answer:

The neuron returns back to its normal charge shortly after the message has been transmitted so the insides are negative and the outsides positive.

Explanation:

The rocks in C horizon are
A
full of water.

B
tiny pebbles.

C
completely solid.

D
cracked and creviced.

Answers

Answer:

The answer would be

C.completely solid

Youre welcome<3

Free lime and natural gypsum, in addition to soluble salts, are frequently found in the C horizon. Therefore, option (C) is correct.

What is C Horizon?

Free lime and natural gypsum, in addition to soluble salts, are frequently found in the C horizon. Unconsolidated material can be found above bedrock at the C Horizon, which is also referred to as the substratum. It has not undergone enough deterioration to be classified as soil, but it is nevertheless considered to be a layer of a soil profile.

The C horizon is often composed of boulders, cobbles, pebbles, and other types of rocks that have not been worn or have only been lightly weathered. Due to the fact that the layers of soil that are found above the C horizon are typically generated from this material, these rocks are referred to as parent rocks.

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A man heterozygous for blood type A marries a woman heterozygous for blood type B. What could be the possible blood types of their offspring?

Answers

Answer:

Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)

Heterozygous B: BB (h0m0zygous)

AO x BB --> AB, BO

Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.

I hope this answer helps you find what your looking for! :)

Answer:

Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)

Heterozygous B: BB (h0m0zygous)

AO x BB --> AB, BO

Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.

Explanation:

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Which of the following are the alleles for a heterozygous pea plant?
A. Gg- Green color
B. GG- Green color
C. gg- yellow color

Answers

Heterozygous means the individual has one copy of the recessive gene and one for the dominant gene. That means the genotype will contain one capital letter and one lowercase letter. In this case, which is complete dominance the dominant gene will manifest in the heterozygous form.

The correct answer is A. Gg-Green color

Which factors affect heat transfer between a warm and a cool substance?
O the time it took to heat the substance, the area of contact, and the specitic heats of the substances
O the amount of time of contact, the area of contact, and the specific heats of the substances
O the time it took to heat the substance, the area of the substances, and the specific heats of the substances
O the amount of time of contact, the area of the substances, and the specitic heats of the substances

Answers

Answer: the amount of time of contact, the area of contact, and the specific heats of the substances.

Explanation:

The factors that affect transfer between a warm and a cool substance are the amount of time of contact, the area of the substances, and the specific heat of the substances.

What is the transfer of heat?

Transfer of heat is due to a change in temperature. Convection, conduction, thermal radiation, and evaporative cooling are the four types of transfer of heat.

Thus, the correct option is D.

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If autotrophs had not evolved on the primitive earth, then the heterotrophs would have probably have exhausted the:________.a. amino acids. b. energy supply. c. oxygen supply d. carbon dioxide supply.

Answers

Answer:

C. Oxygen supply

Explanation:

Autotrophs make their own food with carbon dioxide and create oxygen as a byproduct. Heterotrophs need oxygen to create energy and create carbon dioxide as a byproduct. Therefore, if there are no autotrophs, the carbon dioxide in the air won’t be able to be used to turn to oxygen, which heterotrophs need. The heterotrophs will use up all of the oxygen in the air, leaving lots of carbon dioxide behind. This is why we need plants and trees! Thus, the answer is C.

I hope this helps! :)

When this ink filler is dipped into a beaker of water and the bulb is pressed, air bubbles appear in the water. Why does this happen?
A. Air in the atmosphere forms the bubbles.
B. The air in the ink filler is released to form bubbles.
C. The liquid rushes into the filler forming bubbles.
D. The air in the water forms bubbles.

Answers

Answer:

C

Explanation:

Answer:

THE answer is c 100%

Explanation:

. The liquid rushes into the filler forming bubbles.

ANSWER PLS NEED HELPPP

Which of the following is NOT one of the stages of meiosis?
a.
Anaphase II
c.
Telophase II
b.
Prophase II
d.
All of the above are stages

Answers

Answer:

a maybe

Explanation:

Answer: D

Explanation:

The phases are prophase, metaphase, anaphase and telophase. So all answers are stages.

A part of an mRNA has the sequence GGA. Which change to this sequence would indicate a missense mutation? UGC/ Cys CAU) Messenger Second base in codon RNA Codons U с А G UUUU UCU UAU UGU Phe UUC UCC UAC Tyr U Ser UUA Leu UCA UAA Stop UGA Stop A UUG) UCG UAG Stop UGG Trp CUU CCU CGU His CUC CCC CAC) CGC Leu Pro Arg CUA CCA CAA CGA A CUG Gin CCG CAG CGG G AUU ACU AAU Asn AGU 1 Ser AUC lle ACC AAC) AGC) Thr с AUA ACA AAA AUG start ve ACG AGA Lys AAGS Arg AGG GUU GCU GAUT GUC GGU GCC Asp GAC) GGC G Val Ala GUA GCA GAAT Gly Glu GGA A GUG) GCG) GAG) GGG First base in codon po pºco podu Third base in codon O A. GGU O B. GGC O C. GCA O D. GGG​

Answers

Answer:

GCA

Explanation:

Correct as of late May 2021 on a pex. Why? I'm still not sure.

there are many kinds of kitchen knives ,each with a special use. which one is used to cut thick sandwiches​

Answers

Answer:

The one used to cut sandwiches is thicker

Answer:

utility knives helps to cut the sandwiches

What is the X structure called in a DNA structure

Answers

Answer:

DNA Chromosomes are often recognised and depicted as X-Shaped structures

Chromosomes are in the shape of an x with a centromere at the intersection and two sister chromatids at either end with each tip capped of with telomeres to stop fraying and to stop them from sticking to each other. The chromosome is composed of histone proteins wrapped in DNA condensed to make chromatin and then shaped into the x formation of a chromosome.

during which stage is sunlight absorbed and water broken down to produce oxygen and atp

A Light dependent cycle
B Citric Acid Cycle
C light independent reaction
D Krebs Cycle

Answers

Explanation:

no 3 is the correct answer I think...

Answer:

its def C

Explanation:

cartilage has the unique ability to contract to pull the bones and help the body move
True or false
(Anatomy and Physiology)

Answers

Answer:

False

Explanation:

Cartilage prevents the bone ends from rubbing directly on to each other while the muscles contract to move the bones associated with the joint.

Cartilage can bend some but not too much or it breaks

On which feature is pseudoscience based? detailed research with reliable sources static information that does not change repeated investigations testable experience

Answers

Answer:

static information that does not change

Explanation:

Pseudoscience is based on bias instead of other things that fact based science is, such as repeated research or expert verified claims.

Being color bind is an X-Linked Recessive trait. What are the genotype possibilities for a girl who is colorblind (XB or Xb )?

What are the possible genotype(s) for her father?

What are the possible genotype(s) for her mother?

What are the possible genotypes for a boy who is colorblind?

What are the possible genotype(s) for his father?

What are the possible genotype(s) for his mother?

Answers

Explanation: XX because she is female. Since she is not color blind one of the pair has to be XC. Since she is a carrier of color blindness she has to have the recessive gene as well, so the other has to be Xc.

Programmed cell death to remove damaged cells so they can’t pass on their mutations is called what

Answers

Answer:

Apoptosis

Explanation:

Where in the mitochondria would you predict the highest concentration of hydrogen ions (H+) - which can be measured as pH/acidity?

Answers

Answer:

Where is the highest concentration of hydrogen ions in the mitochondria?

inter-membrane space

The highest concentration of hydrogen ions is located in the inter-membrane space. How do hydrogen ions get to the inter-membrane space? The hydrogen ions reach the inter-membrane space through protein channels embedded in the mitochondrial membrane.

Explanation:

Those solutions with a pH of 7 are considered neutral as is the pH of pure water at 25°C. Anything with a pH of above 7 (a small number of hydrogen ions) is considered alkaline.

...

pH Measurement.

Concentration of Hydrogen ions compared to distilled water pH Level Examples of Solutions at this pH

1/100,000 12 Soapy water

14 more rows

What are some animal adaptations that can be found in the desert? Would animals need the same kinds of adaptations in a rainforest? Explain.

Answers

Answer:The sloth uses camouflage and moves very slowly to make it difficult for predators to spot.

The spider monkey has long, strong limbs to help it to climb through the rainforest trees.

Explanation:

Sex-Linked Disorder

Answers

Answer:

there you go

I hope this helps

1A.

An allosteric enzyme differs from a Michaelis-Menten enzyme because the allosteric enzyme:_______

Answers

Answer:

Because an allosteric enzyme has multiple active sites

Explanation:

an allosteric enzyme has multiple active sites because it cause a modification binding of an allosteric effector at a certain site which is not the active site. It has multiple active site in which the binding of an active site can affect it's affinity with other active site.

Which are produced as a result of meiosis?

zygotes

chromosomes

tetrads

gametes

Answers

meiosis, is a special type of cell division of germ cells in sexually-reproducing organisms used to produce the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each paternal and maternal chromosome.

Gamates are produced as a result of meiosis

In humans, the products of meiosis are sperm or egg cells ( gamates )

Meiosis

Meiosis is a type of cell division which involves the formation of egg and sperm cells.

In se-xually reproducing organisms, body cells are diploid, meaning they contain two sets of chromosomes. During meiosis, diploid cells undergo DNA replication, followed by two rounds of cell division, producing four haploid s -ex cells.

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Which phrase describes the relative age of a rock?

uses the law of superposition to determine which rock is older or younger
can determine the age based on location of a rock within the same layer
requires only one rock to determine the age
can provide the exact age of a rock

Answers

Answer:

A. Uses the law of superposition to determine which rock is older or younger.

Explanation:

I majored in Biology

The law of superposition of rocks is used to determine the age of rocks.

A rock is defined as a solid mass of minerals which could be found above or below the earth's surface. Rocks are of different types and they take different forms.

In order to determine the relative age of  rocks, the law of superposition is used. This law can be used to determine  which rock is older or younger.

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You have discovered a small organic compound that you think will cause a significant shift in the peptide loop covering the active site of the enzyme, inhibiting the protein's function. Which approach(es) would be most appropriate to test for this hypothesis

Answers

Answer:X-ray crystallography and NMR spectroscopy

Explanation:

Can surgical mask be disposed in the soil?

Answers

Answer:

No

Explanation:

Bcoz they are not Biodegradable masks

PLSSS HELP
Mr. and Mrs. Smith go to the doctor to see if there is a possibility that any future children they have will be born with a genetic disease. This is an example of the use of which of the following?

Answers

GENETICS is what specific DNA traits get passed down from parent to child.

How are some protists able to live in air.

Answers

Answer:

Is it ok if i get some free points because i do not know the answer but you should try looking it up on the internet

Explanation: IM SUPPPPPPPPPPPPPPPER SORRY

PLEASE HELP I WILL GIVE YOU BRAINLIEST AND PLS EXPLAIN YOUR ANSWER!!!

Answers

Answer:

slower

Explanation:

Increasing the force increases accelaration while increasing the mass tends to decrease accelaration.

Damage to which structure will most directly disrupt water balance within a single-celled organism? A characteristic common to both diffusion and active transport is that

Answers

Answer:

cell membrane

Which of these describes how shivering helps the body to respond to the cold? *
A(Muscle movements cause pores in the skin to absorb heat from the air that was previously lost
B(Muscle movements cause the blood to flow faster, which transports heat throughout the body
C(Muscle movements make the water level in the body increase, which increases internal temperature.
D(Muscle movements generate heat, which replaces heat lost to the environment.

Answers

Answer:

B

Explanation:

The more your blood flows, the faster. Fast friction creates heat throughout the body. Therefore quickly warming the body.

As the number of predators increases the amount of prey increases
TRUE or FALSE

Answers

Answer:

True

Explanation:

If those predators have babies they are prey to other predators. Plus, more and more prey are being born...

Answer: Nvm, It's true

Explanation:

When the number of predators increases, they will eat more of the prey and cause a decrease in the population of the prey. Which will also cause a decrease in the population of the predators. And the lack of predators will then cause the prey to increase and the cycle continues.

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