Severe flooding in an area caused a population of minnows to become split into two separate ponds. Prior to the separation, the
male minnows all had a moderate number of spots
Following the separation, the first pond was filled with larger fish that fed on minnows, so male minnows with fewer spots were
better able to avoid detection by predators. The minnows in the second pond, however, had very few predators, and female
minnows in this pond preferred to mate with males that had the most spots,
After many generations, the two minnow populations evolved into different species and could no longer interbreed.
Fish Species Average # of Spots
Original Species four to six
New Species 1 zero to two
New Species 2 eight to ten
Which of the following best describes why the two minnow populations evolved into separate species?

Answers

Answer 1

Answer:

Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.


Related Questions

Consider the skeleton. Which skeletal system is represented by the shaded portion of the skeleton ?

Answers

Answer:

appendicular skeleton.

Answer:C

Explanation:

20 points

Why is an imbalanced high population of moose on the island seen as a

problem? *

If the moose population continues to grow, they will run out of space on the island and

take over the wolf niche.

If the moose population is unchecked, the local balsam fir population will be

decimated, leaving a barren ecosystem.

It was not seen as a problem; science believes we should let the ecosystem run its

course and dies out.

It was not seen as a problem because the absence of wolves on the island ensured

the future of the ecosystem.

Answers

Answer:

If the moose population is unchecked, the local balsam fir population will be  decimated, leaving a barren ecosystem.

Explanation:

The imbalanced high population of moose on the island seen as a  problem because it decreases the local balsam fir population which is a major food source for the moose in the winter season. If the population of moose is grow higher then the scarcity of food sources occurs and the food source will be eliminated from that ecosystem. If the moose population increases the local balsam fir population will be eliminated from the ecosystem and the land will remain barren or without vegetation.

LIST THESE BY GREATEST NUMBER OF PROTONS, please.
HYDROGEN
ALUMINUM
NICKEL
LITHIUM
GOLD
ARGON
MERCURY
IODINE

and please don't put random things, I need this really bad.

Answers

Answer:

Hydrogen, Lithium, Aluminum, Argon, Nickel, Iodine, Gold, Mercury

 

Explanation:

Hydrogen has 1 proton.

Lithium has 3 protons.

Aluminum has 13 protons.

Argon has 18 protons.

Nickel has 28 protons.

Iodine has 53 protons.

Gold has 79 protons.

Mercury has 80 protons.

Hope this helps.

6
A student drew the picture of a human body system shown below. The student labeled some
of the organs of the system.
Nose-
Mouth
Larynx
Lung-
Bronchus-
KIVITINY
Laryngopharynx
-Trachea
+ -Lung
-Bronchus
-Bronchioles
-Diaphragm

The main function of this human body system is to -

F sense odors in the environment
G exchange gases with the environment
H chew food as it enters the mouth
j trap partides that enter the nose

Answers

With the lungs, nasal cavity, and larynx, the body diagram looks like a respiratory system. The main function of the respiratory system is to facilitate gases exchanging between your blood and the air, so I think your answer is G!

Answer:

I think it is G

Explanation:

I took the test

state two functions of the onjective lens on a microscope​

Answers

Answer:

please give me brainlist and follow

Explanation:

In microscopy, the objective lenses are the optical elements closest to the specimen. The objective lens gathers light from the specimen, which is focused to produce the real image that is seen on the ocular lens. Objective lenses are the most complex part of the microscope due to their multi-element design.

HELP!!! DONT SEND NO LINK, IT DONT WORK!!!!

Explain why harmful mutations tend to disappear, while beneficial mutations become
widespread.

Answers

Harmful mutations do not accumulate over time because they reduce the reproductive success of an organism. These mutations would be dead before they can produce any offspring

Answer:

Harmful mutations don't accumulate over time because they reduce the reproductive success of an organism! These mutations would be dead before they can produce any offspring, so there's a slim chance of their genes being passed on. (So it's basically like survival of the fittest, the ones that survive usually have beneficial mutations because that's what keeps them alive lol) Beneficial mutations play a big role in evolution too!

Explanation:

I hope that cleared things up for you! pls give me brainliset <3

guyss can you please help mee it's importantt
What type of relationship exists between the snake and the shrew?

A. competition

B. predation

C. parasitism

D. mutualism

Answers

The answer is b because the snake preys on the shrew

Which is a component of cell theory?
A: cells come from bacteria
B: cells come from cells
C: cells come from nonliving matter
D: cells come from non-cells

Answers

Answer:

B: cells come from cells

Explanation:

A component of the cell theory is that all new cells arise from existing cells

Hope this helped!!!

Which of the following determines whether or not a material is magnetic

Answers

Answer:

uuuuuuuuuuuuuuu

Explanation:

uuuuuuuuuuuu7uu

Please Help!

What can you determine from the principles of cross-cutting relationships?
A. Layers that cut across the most other features are youngest.
B. In a given region, all layers of sediment form at the same time.
C. The layers of sediment on the bottom are the oldest.
D. Two different types of sediment will not cut across each other.

Science A P E X

Answers

Answer:

A. Layers that cut across the most other features are youngest.

Explanation:
Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.

which type of traits are responsible for evolution?

Answers

Answer:

In biology, evolution is the change in the inherited traits of a population from generation to generation. These traits are the expression of genes that are copied and passed on to offspring during reproduction. ... Genetic drift arises from the role chance plays in whether a given individual will survive and reproduce.

Heredity - This is the passing on of traits from parents to their offspring either through sexual reproduction or asexual reproduction.

Explanation:

please mark this answer as brainliest

A dollar weed species has become resistant to a particular weed killer. What happens to the percentage of dollar weed offspring that survive weed killer treatments in future generations?

Answers

Answer:

A. The percentage will increase

Explanation:

If the species is becoming resistant to the weed killer, natural selection will cause future generations to become resistant as well, therefore the percentage of resistant dollar weed will increase. Also I took the test lol.

What are two types of symbiosis?

Answers

Answer:

mutualism and parasitism

Examples:

mutualism: crocodiles and birds

parasitism: mosquitoes and humans

what are the many forms of energy? how is energy either potential of kinetic

Answers

Answer:

The different types of energy include thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy and gravitational energy.

You need energy to do any work, which is why the ability to do any work is energy. Read that again. Potential and kinetic energy are two forms of energy that can be converted into each other. Potential energy can be converted to kinetic energy and vice versa.

Explanation:

Which scenario would result in a decrease in population size, or a negative population growth?

Use this formula:
population growth = (birth rate + immigration) – (death rate + emigration)

0 individuals emigrate, 14 individuals die, 14 individuals are born, 14 individuals immigrate
40 individuals emigrate, 0 individuals die, 10 individuals are born, 28 individuals immigrate
12 individuals emigrate, 5 individuals die, 17 individuals are born, 0 individuals immigrate
19 individuals emigrate, 4 individuals die, 25 individuals are born, 0 individuals immigrate

Answers

Answer:

The third situation has the lowest amount of people with 0.

Explanation:

In this situation,

0 individuals emigrate, 14 individuals die, 14 individuals are born, 14 individuals immigrate.  Population growth = 14

In this one,

40 individuals emigrate, 0 individuals die, 10 individuals are born, 28 individuals immigrate   Population growth = 2

For this one,

12 individuals emigrate, 5 individuals die, 17 individuals are born, 0 individuals immigrate   Population growth = 0

Last one,

19 individuals emigrate, 4 individuals die, 25 individuals are born, 0 individuals immigrate   Population growth = 2.

PRACTICE-PUNNET SQUARES
will make brainliest of answered​

Answers

Answer:

FF    Ff

FF    Ff

Explanation:

Brainliest Please!

Why do plants of the fields become yellowish?​

Answers

Answer:

Poor drainage or improper watering

Explanation:

Water issues — either too much or too little — are the leading reason behind yellow leaves. In overly wet soil, roots can't breathe. They suffocate, shut down and stop delivering the water and nutrients plants need. Underwatering, or drought, has a similar effect.

Name this Molecule HELP ASAP PLEASE I WILL GIVE BRAINLIEST​

Answers

copper gallium I think

CAN SOMEONE HELPW THIS PLS

Answers

Answer:

c

Explanation:

How are cell membranes and cell wall similar in plant cells?
A. Both are the energy factories.
B. Both are used for storage of nutrients.
C. Both are the control centers of the cell. .
D. Both are transporters of waste materials.


HELP PLEASEEE

Answers

Answer:

B

Explanation:

both are used for storage of nutrients

B should be the answer

Which type of power can be used to reduce the production of carbon dioxide?
A. oil
B. natural gas
C. solar
D. coal

Answers

Answer:

C

Explanation:

Answer:

The answer for this is solar

The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by

Answers

Answer:

El tubo digestivo mide aproximadamente once metros de longitud, se inicia en la cavidad bucal y terminan en el ano.En la boca empieza propiamente la digestión, los dientes trituran los alimentos y las secreciones de las glándulas salivales los humedecen e inician su descomposición química transformándose en el bolo alimenticio.

Explanation:

Humans produce the enzyme amylase. This enzyme breaks down starch, a
complex carbohydrate found in many food sources (e.g. potatoes, breads).
Explain why the human digestive system is unable to use amylase to break down
the complex carbohydrate cellulose, which is also found in some foods (such as
celery).

Answers

Explanation:

We lack the enzyme cellulase which is the enzyme required to break down cellulose.

Base on the given information, human can produce the enzyme amylase, but cannot produce the appropriate enzymes that is able to breakdown the beta acetal linkages that exist in cellulose.

Enzymes serves as biological protein, and it is needed in the body to carry out specific functions.

Human posses amylase which made it possible to breaks down starch that is contained in many carbohydrate food that we eat.

We can conclude that human doesn't have the enzymes that that act on complex cellulose contain in found like celery.

Learn more about enzymes at;

https://brainly.com/question/13488041

Question 1 of 6
In which region is there most likely to be a volcano?
Eurasian plate
D
B
North
American
plate
BAD
Pacific
plate
Pacific
plate
African
plate
Indo-
Australian
plate
South
American
plate
Antarctic plate

Answers

Answer:

the correct answer is D :)))!!

The Central Dogma of Biology describes a two-step the process of DNA-RNA-Proteins. Which process is being observed in the diagram below?

Answers

Protein Synthesis I’m pretty sure

The process shown in the given image is transcription. The correct option is 3.

What is transcription?

In genomics, transcription is the process of creating an RNA copy of a gene's DNA sequence. This copy, known as messenger RNA (mRNA), transports the protein information encoded in the gene's DNA.

The process of copying a segment of DNA into RNA is known as transcription.

Messenger RNA is created when segments of DNA are transcribed into RNA molecules that can encode proteins. Other DNA segments are copied into RNA molecules known as non-coding RNAs.

The process of copying DNA to RNA is known as transcription, and the process of using RNA to make proteins is known as translation.

Thus, the correct option is 3.

For more details regarding transcription, visit:

https://brainly.com/question/14136689

#SPJ3

Your question seems incomplete, the probable complete question is:

The Central Dogma of Biology describes a two-step the process of DNA-RNA-Proteins. Which process is being observed in the diagram below?

TranslationTransverseTranscriptionTranslocation

help please........ ​

Answers

Answer:

for

1.structure of nucleotide:

phosphate :

DNA -nucleic acid

RNA- nucleic acid

Monosaccharides:

DNA- deoxyribose sugar.

RNA- ribose sugar.

Nitrogenous base:

DNA-Adenine ,Guanine ,Cytosine,

Thymine.

RNA-Adenine ,Guanine ,Cytosine, uracil.

2. structure of the molecule:

DNA- double stranded

RNA-Single stranded

3. Functions:

DNA-replicates and stores genetic information

RNA-converts the genetic information contained within DNA to a format used to build proteins, and then moves it to ribosomal protein factories.

WILL GIVE BRAINLISTTTT!!!! In what ways are mechanical, chemical and biological weathering responsible for changes in our environment?

Answers

Answer:

Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble. Water, in either liquid or solid form, is often a key agent of mechanical weathering. For instance, liquid water can seep into cracks and crevices in rock. If temperatures drop low enough, the water will freeze.

Hope this helps

easy questions, easy points​

Answers

Answer:

Pretty sure they're both A.

Answer:

person above is correct

A

Explanation:

In the Galapagos Islands, there were many species of tortoises, woodpeckers and other animals. Why were the animals like the tortoises so different in appearances, when they lived on neighbor islands?

Answers

Answer:

The animals were different because there were things the animals need to adapt to in the Galapagos that may have changed their appearance. for example a bird may have a different shaped beak because they started to evolve so they could eat foods that were available to them on the island

The result of this glacial action will be a

Answers

Answer: A

Explanation:

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