A population of drosophila flies lives in a forest and has variation in their egg-laying behavior. The majority of the flies have the trait of laying eggs in the rotting bark of trees. A small percentage of the flies have the trait of laying eggs in bark that is dampened by sap. The drosophila population moves into a new forested area that is drier, where rotting bark is harder to find than sap. How will the population change over several generations

Answers

Answer 1

Answer:

It will contain a larger proportion of flies that lay eggs in sap because the trait results in a higher chance of reproducing successfully and passing on the gene

Explanation:

Over the years the population of flies that lays egg in the rotten bark will reduce this is because of the low chance of reproducing and there will be an increase in the population of flies that lays egg in the sap because the flies have a higher chance of reproducing successfully leading to an increase in the population and the ability of the gene to be passed on successfully to their offspring in next generation.


Related Questions

How much time does it take to use 300 W of power to do 1800 J of work? Round your answer to the near
number.
SERE
The time is
S.

Answers

Answer:

the answer is 6 secs rounded to nearest ten is 10

Explanation:

hope it helps

Which of the following are the products of respiration?
1)ATP, Water, and Oxygen
2)Carbon dioxide, Oxygen, and Water
3)ATP, Carbon Dioxide, and Water
4)Glucose, Water, and Carbon Dioxide

Answers

3 would be the best choice of cellular respiration

Which natural events likely caused Earth's past mass extinctions?

Answers

In my opinion

Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes. One famous mass extinction event is the one that lead to the extinction of dinosaurs, 65 million years ago.
I hope it’s help

Answer:

Its because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes.

Explanation:

Unit 5 DQ 1 Debate on global warming The issue of global warming has become an unending debate. Which side of the debate are you in? Support your decision with one reference​

Answers

Answer:

Global average temperatures have increased in evolving patterns in which cooler temperatures (shown in blues) have generally changed to warmer temperatures (shown in progressively intense reds).

True or False? The skills and characteristics needed for a high-quality friendship are the same skills and characteristics needed in a committed long-term relationship or marriage.

Answers

True
Hope this help

Which components makes up the "backbone" of the DNA molecule?
O phosphate and nitrogen bases
O deoxyribose sugar only
O nitrogen bases
O phosphate and deoxyribose sugar

Answers

phosphate and deoxyribose sugar
Phosphate and deoxyribose bases is your answer

which supports the theory that some mountains were once at the bottom of the ocean?
A.there are underwater mountains on the ocean floor today
B.freshwater rivers flow to the ocean
C. fossils of marine organisms are found at the top of some mountains D both mountains and Ocean Floors have similar mineral in their Rock​

Answers

Answer:

★ C. fossils of marine organisms are found at the top of some mountains

Explanation:

Hope you have a great day :)

In mouse, genes X, Y and Z are on chromosome 2. The map of genes X, Y and Z is:

X--------20mu--------Y---------------30mu---------Z.

You cross an individual with genotype XXYYZZ to an individual with genotype xxyyzz, and F1 progeny are collected. Assume interference between regions (X-Y and Y-Z) is 40%. You then perform a cross between an F1 individual and an individual with genotype xYz/xyz. Among 1000 progeny, how many of them will be of the genotype xxyyzz?

Answers

Answer:

36 individuals xxyyzz

Explanation:

Available data:

X-Y = 20MUY-Z = 30MUCross: XXYYZZ   x    xyyzzF1= XxYyZzI = 40%2nd Cross: XxYyZz  x  xxYyzzF2 = 1000 individuals

We need to know how many individuals from the F2 are going to be xxyyzz

xxyyzz genotype is the result of a double recombinant event.

First, we need to analyze the given information:

→ Distances between genes

The genetic distance result from multiplying the recombination frequency of each region by 100 and expressing it in map units (MU). So, if we have the genetic distance we can divide it by 100 and get the recombination frequency:

Let us say that region I is the distance between X and Y. And region II is the distance between Y and Z.

GD = genetic distance

RF = Recombination frequency

GD (X-Y) = RF x 100

20MU = RF x 100

20MU/100 = RF

0.2 = RF (Region I)

GD (Y-Z) = RF x 100

30MU = RF x 100

30MU/100 = RF

0.3 = RF (Region II)      

Now we have the recombination frequency of Region I and Region II.

→ Interference    

Knowing the interference value will let us know the value of the coefficient of coincidence, which will also lead us to the number of individuals xxyyzz.

I = 40%

I = 1 - CC   ⇒ CC = coefficient of coincidence

Clearing this equation gives us the value of CC

CC = 1 - I

CC = 1 - 40% = 1 - 0.4

CC = 0.6

To calculate the coefficient of coincidence, CC, we can also use the next formula:

CC = observed double recombinant frequency/expected double recombinant frequency

Now, we are interested in knowing the value of the observed double recombinant frequency.

Note:  

observed double recombinant frequency = total number of observed double recombinant individuals/total number of individuals expected double recombinant frequency = recombination frequency in region I x recombination frequency in region II.

So, to get the value of the observed double recombinant frequency, first, we need to get the value of the expected double recombinant frequency. And we can do it because we already have the recombination frequencies in both regions.

expected double recombinant frequency = recombination frequency in region I x recombination frequency in region II

- Recombination Frequency - RI = 0.2

- Recombination Frequency  - RII = 0.3

expected double recombinant frequency = 0.2 x 0.3

expected double recombinant frequency = 0.06 = EDRF

Now that we know the value of the CC and the expected DRF, we can get the observed double recombinant frequency.

CC = observed double recombinant frequency/expected double recombinant frequency

- CC = 0.6

- EDRF = 0.06

CC x expected double recombinant frequency = observed double recombinant frequency

0.6 x 0.06 = observed double recombinant frequency

0.036 = observed double recombinant frequency = ODRF

Finally, as this is a frequency, we need to multiply it by the total number of individuals in the F2 to get the number of observed double recombinant individuals.

- ODRF = 0.036

- N = 1000

Double recombinant individuals = 0.036 x 1000 = 36 individuals xxyyzz.

According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the engulfed cell alive, rather than digesting it as food select all that apply

Answers

Answer:

It provides ATP.

Explanation:

It is adaptive for the larger host cell to keep the engulfed cell alive, instead of digesting it as food because the engulfed cell provides energy in the form of adenosine triphosphate (ATP) to the host cell. The larger host cell is able to survive in anaerobic conditions with the help of engulfed cell alive so that's why we can conclude that the larger host cell keep the engulfed cell alive instead of killing it and used as a food source.

The process of nitrification is
carried out by what group of
organisms?
A. producers
B. animals
C. bacteria

Answers

C) Bacteria is the correct option

How do increases in human consumption of natural
resources impact the Earth

Answers

Answer:

The impact of so many humans on the environment takes two major forms: consumption of resources such as land, food, water, air, fossil fuels and minerals. waste products as a result of consumption such as air and water pollutants, toxic materials and greenhouse gases.

hope it helps

if all the bees in the hive come from the queen how are they related
I NEED AN ANSWER

Answers

Answer:

Aren't they brothers and sisters

Answer:

The queen had all made them, so theyre brothers and sisters.

what are the components of the atmosphere that help organisms live on earth?
EXPLAIN and I will make you brainliest!!!

Answers

Answer: Atmospheric gases, especially carbon dioxide (CO2) and oxygen (O2), are extremely important for living organisms. Carbon dioxide and oxygen are the gases in the atmosphere that are needed for life. Plants need carbon dioxide for photosynthesis. They use sunlight to change carbon dioxide and water into food. The process releases oxygen

Explanation:

Rearrange them in the correct sequence.

Harvesting, Sowing, Manuring, Tilling and Ploughing, Irrigation, Weeding.

Plzz Help ASAP​

plz ASAPPP

Answers

Tilling, Ploughing, Sowing, Manuring, Irrigation, Weeding, Harvesting.

The assistant strength and conditioning coach for a small college works with athletes in all sports. With only two lifting platforms and four squat racks, space is limited and training sessions are chaotic. Morning and early afternoon hours are the low-activity times of the day. At 3 p.m., student-athletes fill the room beyond capacity, making individualized instruction and room supervision difficult. What steps should the assistant strength and conditioning coach take to properly address these concerns?

Answers

Answer:

The solution to these question can be defined as follows:

Explanation:

Both students including athletes who undertake the program can be assigned slots relating to some period the classical or athlete should report completing their practice. The slots aren't allowed to continue.

They have a structured exercise template for each person, that helps for easy student or athlete monitoring, based on their skill.

This can be encouraged to students and teachers to attend daily and midday meetings.

what are all the zodiac names
if I was born in september what is my zodiac
I WILL GIVE 20 POINTS FOR THIS

Answers

Answer:

Virgo

Explanation:

Have a great day :)

Answer:

libra, cancer, aries, scorpio, leo, pisces, saggitarius, aqurious, capicorn, tarous, and gemini

Explanation:

Virgo

The zodiac sign for September  is Virgo.

This zodiac symbol is considered to influence those born August 23 - September 22, under the Virgo zodiac sign

Non vascular plants are quite commin in the forests along the coast of Norther California but are relatively rare in the ecosystems around Davis in the Central Valley. What aspects of the life cycle of these plants make it difficult for them to reproduce on our area

Answers

Answer:

The Central Valley of northern California is a region where there is little water supply, while nonvascular plants cannot efficiently store water and they have primitive traits that are dependent on water for reproduction.

Explanation:

The Central Valley of northern California is characterized to have little natural precipitation/snowmelt during the dry summer months. In addition, California's climate also has extended periods of drought. On the other hand, non-vascular plants such as mosses and liverworts, are a type of plant that lacks vascular tissues (xylem and phloem), and they also lack true roots, stems, or leaves. These plants cannot efficiently absorb and store water (which fundamental for survival), and thereby the success of these plants in establishing and reproducing in the ecosystems of the Central Valley is limited to their physiological tolerance to desiccation. Moreover, non-vascular plants may also exhibit primitive traits related to their reproductive cycle (e.g., a flagellated sperm) that are dependent on water for reproduction.

why is it important to determine the manner/mechanism of death

Answers

no i decide when someone death is coming. and i’m always right like i can say your death is tomorrow and u will pass away tmr !!

Where would you collect
data during an
experiment?

Answers

Answer:

Recall that data can be collected in two main ways: (1) through sample surveys or (2) through designed experiments. While sample surveys lead to observational studies, designed experiments enable researchers to control variables, leading to additional conclusions.

Tectonics plates float on the ?
A.outer core
B.inner core
C.mantle
D.lithosphere

Answers

Answer:

I think mantle

Explanation:

Answer:

Mantle  

Explanation:

The rocky surface floats slowly on the mantle.

Brainliest please :)

Is bacteria prokaryotic or eukaryotic

Answers

The answer to this question is Prokaryotes
It’s the second word

question on picture for biology

Answers

Answer:

because doctors can determine your family's risk from your ariments

Explanation:

hope this helps

Answer:

First one I think

N O 2) Select the best answer. What are three important minerals found in soil? O nitrogen, phosphorous, potassium O carbon, oxygen, calcium aluminum, lithium, magnesium copper, gold, silver​

Answers

Answer:

Nitrogen, phosphorus, and potassium

Explanation:

Answer:

phosphorus, nitrogen and potassium

3 Full sentences,

To what extent can we reverse the destruction of the natural world?

Answers

Answer:

Using too much water from lakes and rivers can affect animals’ habitat. Conserve this resource by taking five minute showers, turning off the faucet when you brush your teeth, and bugging your parents to fix leaky pipes.

Explanation:

PLS HELP!! ASAP DUE TONIGHT!!

The saturated fats of animals differ from the unsaturated ones of plants. Unsaturated fats have

A. higher molecular weights.

B. more metabolic processes that they participate in.

C. nitrogen atoms in their structures.

D. a higher number of double bonds between carbon atoms in their structures.

E. more functional utility in animal species, particularly in marine life forms.

Answers

Answer:

D. a higher number of double bonds between carbon atoms in their structures.

Explanation:

What are some ethical and philosophical questions that surround the issue of
genetic counseling? Might it sometimes be unwise to know ahead of time about
possible genetically linked disorders that might afflict your child or yourself?

Answers

Answer:

Genetic counseling raises concerns associated with confidentiality and privacy of the information. I consider that genetic information always is beneficial for the individual because this information can be used to determine the genetic predisposition of developing a particular inherited disease (and therefore prevent it).  

Explanation:

Genetic counseling has historically been associated with concerns with confidentiality and privacy of genetic information. Genetic information about an individual such as carrier status (i.e., the presence of recessive deleterious alleles in the genome of the individual), his/her chance of developing a certain disease (e.g., cancer), or transmit this disease to his/her offspring is always stigmatizing, and therefore it must be kept confidential. In consequence, genetic information must be carefully handled by professionals because any filtration of this information may be harmful to the individual (for example, unscrupulous companies might use this information to select personal regarding the genetic predisposition to suffer inherited diseases). However, genetic information is very useful in order to determine the genetic predisposition of developing a particular inherited disease and thus take the necessary actions to prevent it (e.g., avoid high salt foods if there is a genetic predisposition of developing cardiovascular diseases).

Answer:

Um, I'm guessing you don't need this answer anymore seeing that it was posted last year.... but I think that it is good to know if you child has genetically linked disorders that might afflict your child or yourself so that you can be prepared before hand.


~Hope this helps! :)

Ángel es un cerdo??
a) Sí
b) Obvio que sí

Answers

OBVIO QUE SI WEY .O SEA ES B!

c)n op orque si es el el uqe no tiene pecho

how the cardiovascular, respiratory and digestive systems work together to provide cells with the raw materials they need to ensure healthy cell function

Answers

Explanation:

The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

which organ is responsible for helping to keep the water concentration equal on each side of the cell membrane?
(please help I've been stuck on this for 2 days)

Answers

Answer:

solute membrane

Explanation:

Kidney is the main organ which is responsible for helping to keep the water concentration equal on each side of the cell membrane.

What is Kidney?

The kidneys are the main organs in the body which remove waste products and extra water from the blood in the form of urine and also help to keep the chemicals such as sodium, potassium, and calcium balanced in the body. The kidneys also secrete hormones which help control blood pressure and stimulate bone marrow to make red blood cells.

Kidneys maintain water concentration in the body. Kidneys maintain homeostasis through osmosis. Osmosis is the phenomenon of movement of water or fluid particles from a region of higher concentration to a region of lower concentration through a semi-permeable membrane.

Learn more about Kidney here:

https://brainly.com/question/30595654

#SPJ6

On a distance-time graph, a car standing still is shown with ____.

A. line curving down
B. line curving up
C. straight, horizontal line
D. series of dots getting closer together​

(science)

Answers

C

because time is still going by when the car isn’t moving

Answer:

yess i think it is c as well

Explanation:

hope you have a great day

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4. Solve the following inequality for b, showing all of your work carefully and completely 4b - 12 - 55 < 9b +8 help i am struggling Selma Inc. is comparing several alternative capital budgeting projects as shown below. Projects A B C Initial Investment $40,000 $60,000 $80,000 Present value of cash inflows $60,000 $55,000 $100,000 Using the profitability index, rank the projects, starting with the most attractive. i need help on ixl ixl ixl ixl Plz answer :) will be marked BRAINLIEST! Please help me write these will give brainliest to correct answer Which of these is a compound sentence?AThe Herald, a prominent newspaper, had been in business for more than 100 years.B. At first its circulation was only 500 papers daily.C. However, circulation grew and grew, reaching 100,000 papers by 1998.DThen, people began reading the news online, circulation fell, and the paper folded. Three pounds of bananas cost $1.47 and 2 pounds of grapes cost $1.18. Which fruit is less expensive per pound? Explain how you know Plz help me well mark brainliest if correct!.... What are Atticus Finches weaknesses? Why are only four amino acids produced by 5 codons? I need this answer ASAP Help outXxxxxxxxxxxxxx Based on the graph, how are the trends in greenhouse gases between the years 1500 and 2000 likely to affect the climate on Earth? is this correct im just asking because my little brother not sure for his answer What is 5 to the 6 power divided by 3794.3? Whats the cheapest 2021 car? how to elimanate half the univese the objective section of a resume should consist of no more than:A. One to two sentences B. One pageC. A half-pageD. One paragraph Can you plz help me!!!!!!!!!!!!!!!!!!!!!!! thankssssssssssssssssssssssssssssssssssssssss