As a result of the experiment scientists did with Mexican tetras, it seems likely that their first hypothesis about blindness in the tetras is right. Explain how the result of the experiment supports their first hypothesis.

The scientists' first hypothesis is that blindness gives the fish some sort of evolutionary advantage, but not directly.

The experiment was: The scientists transplanted a lens from the eye of a surface tetra embryo into the eye of a cave tetra embryo. The result was striking—the surface tetra lens into the cave tetra caused all of the surrounding tissues to develop into a healthy eye.

Answers

Answer 1

A result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.

What is a hypothesis?

An scientific hypothesis is a given explanation to a scientific observation from the real world.

A hypothesis must be verifiable, which means that it can be confirmed or rejected by using the scientific method.

In conclusion, a result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.

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Related Questions

Name four ways synthetic fibers are different from each other?

*forensic science*

Answers

Synthetic fibers can vary greatly from one another. The main reason they can have such varying characteristics is that they can be of four distinct types.

Synthetic fibers are those that cannot be found in nature, but rather are created by man. They can be of four types:

Nylon RayonPolyesterAcrylic

Rayon is one of the types of synthetic fibers created by man. One of the weaker fibers, It is commonly referred to as synthetic silk, having many properties similar to those of silk. It is the result of wood pulp being fused with cotton or wool and is commonly used to create beddings and other home decorations, in varying colors.

Nylon shares few, if any, characteristics with rayon. It is a strong and elastic synthetic fiber. In fact, nylon is stronger than steel wire, even though it is created from water, coal and air. Nylon can be found in tents, climbing equipment, toothbrushes, and many more everyday appliances.

Polyester is a stranger form of synthetic fiber. As its name implies, it is formed from the repetition of esters. Polyester is often used for dressing, given its wrinkle-free properties and resistance. However, many kinds of polyesters exist, leading to its use in bottles, wires and more.

Finally, Acrylic is the final kind of synthetic fiber. Acrylic is a fiber which is normally used to replace wool. Acrylic can be seen used in blankets and sweaters. It is also often used to create panels that will imitate glass, which shows exactly how flexible and useful synthetic fibers can be.

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The Centers for Disease Control (CDC) collect vast amounts of data. For this activity, we want you to use their Natality Information database to test various hypotheses about birth. For the following five issues, please create a hypothesis and then use the database to collect information about the issue. Once you the data is displayed, record it and indicate whether your hypothesis was supported by data.

The database functions in this manner:

Upon going to this website, you will need to comply with the CDC requirements for using the database. Because this is a school activity, you will be fine. Click I Agree.
The top section (Section 1) of the query engine will allow you to determine how your data sets will be displayed. You will want to Group Results by State for the queries you will perform.
Be sure to select the correct measure for your question/hypothesis. Select only one measure for each query.
Section 2 allows to select individual states or multiple states for comparison. If you have selected states in Section 1, you can run multiple data sets here and see them displayed by state. If you did not, the only way to see individual state data is to run the query one state at a time.
The remaining sections include the conditions you can use for comparison. You will need to find the appropriate section for the condition you are testing for. Once you have found it, go ahead and run your query by clicking Send.
Let me talk you through the process. Seriously, watch this video explanation of what you're doing.

Here's an example. Which state, Utah or New York, has the highest average age for mothers giving birth?

Hypothesis: New York has the highest average age for mothers giving birth.
Data (based on the following settings)
Section 1: Group Results by State; Measure: Average Age of Mother (years)
Section 2: Select Utah and New York

Run the report (click Send) and the data says that New York's average age of mothers is 30.26 and Utah's is 28.59
Supported hypothesis: Yes
Data Questions
Now run the data queries for the following questions and record your hypothesis, data, and whether your hypothesis was supported.

Which state, Wyoming or Texas, has the highest fertility rate?
In which state, Hawaii or Illinois, is the mother's education the highest?
Pick two states and determine which state has the most births in May. (For this question and the next two, don't forget to make a hypothesis about which one you think it is.)
Pick two states and determine which state has the most twins.
Pick three states and determine which state has the most babies with Down syndrome.

Answers

Answer:

Texas saw 382,050 births in 2017 the total fertility rate was 1,884 for whites, 2107. for black 2263

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what distinguishes paracentric inversions from pericentric inversions?

Answers

Answer:

Inversions are of two types: paracentric and pericentric. Paracentric inversions do not include the centromere and both breaks occur in one arm of the chromosome. Pericentric inversions include the centromere and there is a break point in each arm.

Explanation:

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The [blank] structures of the cytoskeleton are found in animal cells but not in plant cells?

Answers

Answer:

Animal cells have centrioles, centrosomes (discussed under the cytoskeleton), and lysosomes, whereas plant cells do not.

Explanation:

Hope this helps.

if yellow, red, and orange pigments exist in the leaves of trees, why are leaves green except for in the autumn?

Answers

Answer:

During the fall the day gets shorter hence less sunlight this results to leaves stopping their food making process. The chlorophyll breaks down, the green color disappears and the yellow to orange color becomes visible

Explanation:

help pls pls pls help pls

Answers

Answer: Brick

Explanation: Brick

Which property do solutions with low pH values have?

Answers

Answer:

b) Tastes sour

Explanation:

9. Why can water dissolve many substances?

Answers

Answer:

its a universal solvent for polar substances(charged or ionisable substances). which implies that water can dissolve a variety of solutes as it is polar and most solutes are polar.

how do chlorophyll pigments absorb energy from light?

Answers

Answer:

They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. A pigment is a molecule that has a particular color and can absorb light at different wavelengths, depending on the color. ... The energy absorbed from light is transferred to two kinds of energy-storing molecules.

How are Zinc and Sodium alike

Answers

Answer:

they both are solid at room temperture

Explanation:

Zinc: Is Solid at room temperature

Zinc: Is a toxic heavy metal

Sodium: Is solid at room temperature

Sodium: Is a toxic heavy metal

Hope this helps! :)

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Which statement explains the relationship between the density of a material and its movement in Earth’s interior?

Cooler materials move from Earth’s mantle to the lithosphere.
Cooler materials are highly dense, causing them to sink to the outer core.
Warmer materials sink to the mantle because their density slowly decreases.
Warmer materials have a high density, causing them to rise to Earth’s surface.

Answers

Answer:

Choice B. Cooler materials are highly dense, causing them to sink to the outer core.

Answer:

Cooler materials are highly dense, causing them to sink to the outer core.

Explanation:

How do cells maintain water balance through osmosis? (Choose 2)
If a salt water fish is placed in a fresh water aquarium, water will leave the fish's cells.
In the experiment, the only isotonic solution was the 10% salt water solution.
The egg swelled in distilled water because it is hypotonic to the egg's interior.
The concentration of solute is greater inside the egg than it is in the Kayro syrup.
The egg swells when placed in a hypertonic solution.

Answers

Answer:

The egg swelled in distilled water because it is hypotonic to the egg's interior.

Explanation:

That's one of them. Im sorry i dont know the other

Everything on earth is made up of atom
true or false

Answers

CHIPOTLE, CHICK-FIL-A, BURGER KING, MCDONALDS… ETC.

Which statement is true? (1 point)
Most protists only respire without oxygen.
Most protists can respire with small amounts of oxygen.
Most protists can respire with and without oxygen at will.
Most protists only respire with oxygen.

Answers

The true statement is : ( C ) most protists can respire with and without oxygen at will

Protists

Protists are eukaryotic organisms that can respire either through aerobic respiration ( the use of oxygen ) mostly for obligate protists.  while certain parasitic protist can respire through anaerobic respiration process ( without the use of oxygen ).

Protists can be Fungi, animal or even plants therefore from the options given above most protists can respire with and without oxygen.

Hence the true statement is most protists can respire with and without oxygen at will.

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Answer:Most Protists only respire with oxygen

Explanation: I just took the test, this is 100% correct

Which statement describes a prokaryotic cell?

A.) An amoeba with a vacuole

B.) A blood cell from an animal

C.) A plant cell with chloroplasts

D.) A bacteria without a nucleus

Answers

D. A Bacteria without a nucleus

Real life non examples for cell membrane

Answers

Answer:

ribosomes, the cell wall, and the cytoskeleton.

Explanation:

Somebody help me please

Answers

a. diaphragm

b. stage clips

c. revolving nosepiece

Put the components of the visual projection pathway in order starting with the retina and ending with the brain. Instructions Choice 1 of 6. Optic radiations toggle button Optic radiations Choice 2 of 6. Optic tracts toggle button Optic tracts Choice 3 of 6. Bipolar and ganglion cells of the retina toggle button Bipolar and ganglion cells of the retina Choice 4 of 6. Hemidecussation in optic chiasm toggle button Hemidecussation in optic chiasm Choice 5 of 6. Lateral geniculate nucleus of thalamus toggle button Lateral geniculate nucleus of thalamus Choice 6 of 6. Primary visual cortex in the occipital lobe toggle button Primary visual cortex in the occipital lobe

Answers

Put the components of the visual projection pathway in order starting with the retina and ending with the brain. In order, starting from the lowest to the highest, we have:

Bipolar and ganglion cells of the retina Hemidecussation in optic chiasmOptic tracts Lateral geniculate nucleus (LGN) of the thalamusOptics RadiationPrimary visual cortex in the occipital lobe

The visual projection pathway is referred to as the channel through which electrical impulses created by the retina are transmitted to the brain.

When light penetrates the eye into the retina;

The bipolar and ganglion cells carry the signals from photoreceptors  (cones and rods) to ganglion cells, either actively or passively.

The axons of the ganglion gather and unite to form the optic nerve.

The optic nerve leads to the optical chiasm where hemidecussation of the optic nerve fiber takes place.

In the Optic Chiasm, the optic tract contains the nasal fibers that join from the left eye and connect with temporal fibers from the right eye, vice versa.

The lateral geniculate nucleus (LGN) which connects from the optic tracts has nerve endings that send optical radiation information from the superior visual fields to the inferior visual fields.

The primary visual cortex region is largely located on the occipital lobe of the medial brain surface, its function is to receive and process the optical radiation information sent from the (LGN).

Therefore, we can conclude that we understood the order, mechanism, and process in the visual projection pathway.

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Which of the following is NOT
how mitochondria could have
become part of the eukaryotic
cells?

A. It may have entered as a parasite.

B. It may have been engulfed.

C. It may have entered through photosynthesis.

Please help

Answers

Answer:

Its C

Explanation:


C is the answerr I think

what are some examples of diffusion in living organisms

Answers

Answer:

Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs:

oxygen moves down a concentration gradient from the air in the alveoli to the blood.carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.

Answer:

oxygen moves down a concentration gradient from the air in the alveoli to the blood.

carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.

Explanation:

help please for science

Answers

Answer:

The variety of different genes in a population of organisms

Explanation:

Genetic Diversity is in fact the overall range of individual and varying characteristics in a population. Genetic diversity is what makes different organisms and species unique, and even usher in traits that become favorable for survival. Without genetic diversity, many species would die out before evolving (because it would be near impossible to evolve with their surroundings without genetic diversity).

Solve .

A.


B.


C.


D. 64

Answers

Explanation:

i think it is d 64 bro please follow me

what is the purpose of motor nerve varicosities as they relate to smooth muscle?

Answers

Neuroeffector junctions are varicosities where motor neurons release neurotransmitters to non-neuronal target cells.  These junctions can be observed along the axon.

The motor nerve varicosities RELEASE neurotransmitters onto smooth muscle cells.

There are many varicosities along the axons of the neurons that feed smooth muscle cells.

When autonomic neurons are stimulated, varicosities release neurotransmitters along their axons.

These neurotransmitters then diffuse through the interstitial fluid to interact with receptors in the smooth muscle cells.

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When a new paved parking lot is made, it interrupts which part of the water cycle the most?


SC.912.L.17.10

A.
The ability of trees to take up water through their roots.

B.
The ability of water to fill underground aquifers.

C.
The ability of rivers to be filled by water runoff.

D.
The ability of water to evaporate.

Answers

Answer:a

Explanation:

Which is NOT an example of proper gym etiquette?


options:


A.
Wipe down machines after use.

B.

Demonstrate proper body mechanics.

C.

Use equipment quickly if people are waiting.

D.

Limit time on the treadmill during busy times.



no links

Answers

B because all of the other options are about how you should use the equipment properly or letting other people use them too.

Using equipment quickly when people are waiting is actually an example of poor gym etiquette. Therefore option C is correct.

Sharing the equipment and being mindful of other gym patrons are key. When others are waiting and equipment is being used inappropriately, it can be detrimental to everyone's experience.

It's crucial to be aware of when the gym is busy and to give others a chance to use the equipment.

For the purpose of fostering a welcoming and inclusive environment, good gym etiquette entails showing consideration for and respect for other participants.

Therefore, The correct option is B.

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hypothesis question: do people sing along more to the radio before they eat or after they eat?

Answers

Answer:

They will sing more to the radio after they eat.

Explanation:

This is because they have more energy in their system and are happy from eating so will enjoy the radio more

They would sing after they eat because eating provides more energy. But everyone is different in doing so.

Describe the genetic components of the genetic material containing two variants of each chromosome pair, one from each parent. Give an example of the inputs and outputs of mitosis.

Answers

Answer:

Human cells contain two sets of chromosomes, one set inherited from each parent. Each cell normally contains 23 pairs of chromosomes, which consist of 22 autosomes (numbered 1 through 22) and one pair of sex chromosomes (XX or XY). However, sperm and ova normally contain half as much genetic material: only one copy of each chromosome. Each chromosome contains many genes, the basic physical and functional units of heredity.

Explanation:

I need to connect each monomer to its polymer

Answers

I really hope it helps you!
Connect the dots

most of the photosynthesis in lakes and ponds occurs in the:

Answers

Answer:

its occurs in the Littoral zone

Explanation:

what can cause a cell to inherit the incorrect number of chromosomes?

Answers

Answer:

These changes are not inherited, but occur as random events during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in reproductive cells with an abnormal number of chromosomes

Explanation:

Answer:

Nondisjunction.

Explanation:

They perform as random events during the formation of reproduction cells but they arent inherited. A result of reproductive cells with an abnormal number of chromosomes is caused by nondisjunction.

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