Construction of a new road system splits a population of a rare snail species into three sub- populations, J, K and L. Each of these populations is reproductively isolated.
The table shows the sizes of the three populations immediately after the building of the road
and again ten years later. DNA analysis was used to find:
p the relative frequency of the dominant allele of a gene
q the relative frequency of the recessive allele of this gene.
The three areas of habitat remained the same as each other over the ten year
immediately after road building
after 10 years
population p q size
1000 0.52 0.48 100 0.63 0.37 10 0.20 0.80
population p size
J 1000 0.50 K 100 0.49 L 10 0.40
q
0.50 0.51 0.60
Which statements are supported by this data?
Statement 1: Statement 2: Statement 3:
Natural selection is occurring in populations K and L.
The Founder Effect is strongest in population L.
The observed allele frequency changes result from genetic drift.
A. 1, 2 and 3 C. Only 2 and 3
B. Only 1 and 2 D. Only 1

Answers

Answer 1

Answer:

hey(not contact)...to their family since they went away

Explanation:


Related Questions

what is an accessory organ of the plant used in sexual reproduction

Answers

Calyx and corolla? I don’t know

which hormone causes follicles to release their eggs for fertilization

Answers

Answer:

Luteinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the ovary.

Answer:

Luteinizing hormone

Explanation:

Luteinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the ovary

how long does better than bouillon last after opening

Answers

Since the ingredients include ground meat and vegetables, Better than Bouillon must be stored in the refrigerator. But don't worry that it will go bad quickly — it has about an 18-month shelf life from the time it's opened.

if a plant is not green (does not contain chlorophyll) can it do photosynthesis? why or why not?

Answers

Answer:

No, it cannot carry out photosynthesis because the plant will not be able to absorb light as it does not have chlorophyll.

Explaination:

Chlorophyll in plants is used for absorbing energy from light. And, in photosynthesis, light/sunlight is one of the main factors needed, so as the plant cannot absorb light, photosynthesis can't take place.

do aquatic animals living underwater can hear the sound produced outside the surface if water​

Answers

Answer:

Believe it or not mammals like seals and pinnipeds otters and polar bears can but underwater animals hear very poorly

Explanation:

Which statement describes functions of anti bodies

Answers

Answer:

Explanation:

Antibodies have three main functions: 1) Antibodies are secreted into the blood and mucosa, where they bind to and inactivate foreign substances such as pathogens and toxins (neutralization). 2) Antibodies activate the complement system to destroy bacterial cells by lysis (punching holes in the cell wall).

Construct a Venn diagram that compares and contrasts sexual and asexual reproduction.

Include the following phrases:

haploid (n)
diploid (2n)
gamete
somatic
mitosis
meiosis
cell division
chromosomes separate
genetically identical
genetically different

Answers

The Venn diagram makes a comparison between categories. Intersection: Cell division/Asexual: diploid, somatic, mitosis, genetically identica/Sexual: haploid, gamete, meiosis, chromosomes separate , genetically different.

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A Venn Diagram is represented as two or more circles with some degree of superposition between them. It is used to make comparisons expressing similitudes and differences between things.

Each circle represents a category -in this example, sexual and asexual reproduction-.

The superposed area is named intersection and shows things in common between the two categories.

We already know that sexual reproduction occurs by the process of meiosis, while asexual reproduction occurs by mitosis.

In superior organisms, there are two types of cells: Somatic cells and germ cells.

The somatic cells are diploid (2n), meaning that each cell has a pair of equal chromosomes. The somatic cells are all the body cells except for the sexual ones, and they reproduce by the process of mitosis.

In somatic cells, one of the sets of chromosomes is inherited from the maternal side, while the other homologous set of chromosomes is inherited from the paternal side. Hence, the number of chromosomes in these double sets of the somatic cells is diploid, 2n.

Mitosis is a process through which, from a diploid somatic cell (2n), two identical daughter diploid cells (2n) are produced.

First, occurs duplication of the cell content, and then the separation into two new cells happens.

Germ cells suffer mitosis and meiosis.  

Through meiosis, germ cells produce gametes, called sperm and egg cells, through the gametogenesis process.  

Gametes are haploid (n) with half the number of chromosomes that might be found in the somatic cells.  

During gamete formation, the pairs of homologous chromosomes separate after crossing over. Then, sister chromatids also separate. The result is the formation of four gametes.  

Each gamete has different information from the combination of homologous chromosomes belonging to the father and to the mother.

Gametes' destiny is to merge in the process of fecundation, during which a new diploid cell called zygote emerges through fertilization.

The zygote is a complete cell that suffers successive mitosis to form the new organism.  

Venn Diagram

Intersection area: Cell divisionAsexual: diploid, somatic, mitosis, genetically identicalSexual: haploid, gamete, meiosis, chromosomes separate , genetically different.

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All cells come from pre existing cells. How do we know this?

Answers

Answer:

We know that all cells come from pre-existing cells because of cell division.

How would this impact the organism?

Answers

Answer:

how would what impact the organism?

Which statement describes an important role of carbon dioxide in Earth's atmosphere?
Animals breathe carbon dioxide.
O Plants use carbon dioxide to make food.
O Carbon dioxido helps animals make proteins.
Carbon dioxide forms clouds that produce rain

Answers

Answer:Plants use carbon dioxide to make food

Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.

Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.

CO₂ + H₂O →  O₂ + glucose (food)

This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.

If a cell that is about to divide has 22 chromosomes how many chromatids does it have? How many centromeres does it have?

Answers

44 chromatids 2 centromeres

44 chromatids 2 centromeres, If a cell that is about to divide has 22 chromosomes.

What are chromosomes?

In the synthesis phase, the number of chromatids doubles while the number of chromosomes remains constant. Although the number of chromatids is unaffected, anaphase doubles the number of chromosomes.

Depending on whether or not the DNA has replicated and when the sister chromatids split, the chromosome changes during the cell cycle.

Meiosis I and Meiosis II are the two division cycles that occur during a meiotic cell division. Since the genetic material duplicates during the S phase of meiosis I, there will be 2n chromosomes during metaphase I.

Therefore, if a cell that is about to divide has 22 chromosomes it have 44 chromatids and 2 centromeres.

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the reproductive organ that produces gametes is called a

Answers

Gonads are sex organs that produce gametes. Male gonads are the testes, which produce sperm and male sex hormones. Female gonads are the ovaries, which produce eggs (ova) and female sex hormones.

HELP!! what is the main reason that we continue to use fossil fuels for our electricty and transportation?

A)There are not enough dams in the US

B) Wind is to complicated to set up

C) Solar energy is limited

D) It is cheaper to use to fossil fuels then to invest in renewable energy technology

Answers

Answer:

D - It is cheaper to use fossil fuels than to invest in renewable energy technology.

Hope that helped. x

During primary succession, an ecosystem cannot 're-build' with large trees and bushes. Explain.

Answers

I believe they cannot start with big trees and bushes because the there is not enough nutrients in the soil, so instead pioneer species pave the way for primary succession.

СН,ОН

нс
Н
I—0—
он
он
Н
I-0—
ИТ
Н.
НОН
Functional groups

Answers

Answer: I don't have a definitive answer for this question but I do have a helpful explanation.

Explanation: Try to find out what each letter means and organize the elements by how they connect to each other. If you don't know you can research to find a diagram that can help show you how to connect these functional elements. You could try searching how do you find the elements of HOH in a diagram.

What are some human activities that change the environment?

Answers

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water

Other answers:

Overpopulation.

Pollution.

Global Warming.

Climate Change.

Genetic Modification.

Ocean Acidification.

Water Pollution.

Deforestation.

Climate change, and pollution, for example light pollution, noise pollution.

what kind of punch do a jelly fish like​

Answers

Answer:

a smack

Explanation:

Answer:

Jelly fish like a smack punch.

Explanation:

The mystery of what kind of punch a jellyfish like matched in beautifully with the show's theme - and explained why they're dubbed Scorpion. Scorpions are strongly loyal to the other members of their cyclone group. As they solve their cases, the squad surely creates a ruckus! Scorpions, like other scorpions, have very hard shells and are disliked by many people. A smack is a bunch of jellyfish, and the answer to the riddle is a clever play on the term punch. And, of course, this is what the marines called the team at the start of the show when they intended to make fun of them.

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I am just a teen who needs some help with homework. :)
This is my question:
What is the rarest eye colour in the world? Please help, it's due today.

Answers

Answer:

Green eyes

Explanation:

The production of melanin in the iris is what influences eye color. More melanin produces a darker coloring, while less makes for lighter eyes. Green eyes are the rarest, but there exist anecdotal reports that gray eyes are even rarer.

The rarest eye color in the world is green, only 2% of the population in the world have green eyes. To find out more about the list.....

1. Green eyes

Only 2% of people in the world are believed to have this eye color. It is most easily found in northern and Southern Europe and Western Asia.

2. Amber eyes

They are reddish-brown, with a golden and coppery undertone. Among the clear and beautiful eyes in the world, and according to the survey, the most iris, all eyes and beautiful in the world are according to the study, all eyes are rare and specific.

3. Red or violet eye

It is generated by the body thanks to some genetic changes. The most common is albinism, a disease that lowers melanin levels. Because of this, the hair and eyes can be distinguished.

With this information, we can conclude that there are several eye colors, but the most rare is the color green.

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Which cellular process would be affected first if the structure labeled 3 were
destroyed?

Answers

Answer:

Photosynthesis

Explanation:

asked my teacher

which of the following organism does not require sunlight to live

Answers

Answer: Bacteria

Explanation:

Answer:

Bacteria are organism's that don't need any light or oxygen to survive

Explanation:

how the development of the microscope played an important part in helping to convince people that mendel was right​

Answers

The microscope can be used to demonstrate the segregation of chromosomes during cell division. The law of segregation of characters is a Mendel's Law.

Each allele or gene variant is located at a specific chromosome location known as a gene locus.

The Law of Segregation indicates how one offspring receives one allele from each parent for each locus in a diploid organism.

The development of microscopy confirmed the idea that offspring receives one allele (which is located at a specific chromosome) from each parent for each gene locus.

Learn more about Mendel's Laws here:

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What describes a scientific theory

Answers

Answer:

A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses. ... A scientist makes an observation of a natural phenomenon.Explanation:

Oxygenated blood exits the heart ______________, whereas oxygenated blood enters the ______________ of the heart

Answers

left ventricleright atrium

Explanation:

how does carbon move through the system when there is light

Answers

Answer:

Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them.

Explanation:

The sun takes an integral role in the photosynthesis stage of the Carbon Cycle. Photosynthesis refers to the process by which plants take in carbon dioxide and water (the products of respiration), and convert it to oxygen, powered by the energy of the sun.

The purpose of degrading cyclins is to stop the cell cycle from happening.

A. true
B. false

Answers

a.
positive cues, like growth factors, typically increase activity of Cdks and cyclins, while negative ones, like DNA damage, typically decrease or block activity.

Which is a negative effect of rising ocean temperatures? the drying out of fertile land and the formation of dust bowls the flooding of low-lying coastal areas the faster evaporation of water in the soil the decreased frequency of major storms

Answers

Answer:

B- the flooding of low-lying coastal areas

Explanation:

just did the test on edge

The negative effect of rising ocean temperatures is the flooding of low-lying coastal areas. Details about ocean temperatures can be found below.

What causes rise in ocean temperature?

Rise in temperature of the ocean occurs when the ocean absorbs most of the excess heat from greenhouse gas emissions.

Increasing ocean temperatures affect marine species and ecosystems. Some of the negative effects of increase in temperature is as follows:

It causes cause coral bleaching It causes flooding of low-lying coastal areas.

Therefore, the negative effect of rising ocean temperatures is the flooding of low-lying coastal areas.

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Which measurement would changif you traveled from Earth to the moon?

A.your weight
B.your density
C. your mass
D.your height​

Answers

Answer:

A. your weight

Explanation:

B, C, and D are all fixed by the number of atoms in your body. Weight is determined by the gravitational pull which would be less on the moon.

Can somebody help me with my phycology

Answers

Yeah I can help with that

3. If oxygen is unavailable to the cell...

A. glycolysis will proceed directly into the Kreb's Cycle, then the Electron Transport Chain
B. glycolysis will proceed directly to the Electron Transport Chain, bypassing the Kreb's Cycle
C. glycolysis will proceed into either lactic acid or alcoholic fermentation
D. glycolysis will not be able to occur; the cell will be unable to make ATP

my guess is C

Answers

Letter C

Your answer is right

if something starts to get smaller which law of motion is it

Answers

Answer: second law

Explanation: second law is about force = mass acceleration

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