I need a lab report done about natural selection about birds and their beaks

Answer:

Natural Selection for the Birds

Purpose:

To determine which birds with which beaks survive best in their environment depending on the type of food available.

Question:

What is the effect of the type of food available on the frequency of different types of bird beaks? Hypothesis:

If the food type changes in the environment, then the amount of each type of bird beaks will change because birds with beaks more suited to the available food will be more successful over time.

Variables:

The independent variable of the lab is the type of food that is available to the birds. The dependent variable of the lab is the frequency of each type-size and shape-of beaks.

Materials:

100 sunflower seeds

100 raisins

100 grains of rice

2 forks

2 spoons

2 knives

Plastic cup

Procedure:

1. Gather around the edge of the table cloth, mixing the three groups fairly evenly.

2. Pick up food pieces only with your tool, using the pair of utensils in one hand, simulating the action of a beak.

3. Pick up one piece of food at a time, and put it in your cup (“stomach”) before picking another piece of food.

4. Keep your body off the table cloth and pick up food only within your reach.

5. Start only when the teacher says “Go” and finish when all food has been “eaten.”

Data—Environment with Equal Amounts of Insects, Seeds, and Fruit

Second Generation

Flock X

Flock Y

Flock Z

Insects Eaten

35

32

33

Seeds Eaten

34

46

20

Fruit Eaten

78

15

7

Total

147

93

60

Percentage

49%

31%

20%

Simulated Number of Birds in Flock for 3rd Generation

15

9

6

Data—Changed Environment with Equal Amounts of Insects and Seeds but No Fruit.

First Generation

Flock X

Flock Y

Flock Z

Insects Eaten

30

60

60

Seeds Eaten

27

93

30

Total

57

153

90

Percent

19%

51%

30%

Simulated Number of Birds in Flock for 2nd Generation

6

15

9

Second Generation

Flock X

Flock Y

Flock Z

Insects Eaten

15

100

44

Seeds Eaten

17

80

44

Total

32

180

88

Percent

11%

60%

29%

Simulated Number of Birds in Flock for 3rd Generation

3

18

9

Analysis:

Based on the data in the first table flock X consumes mostly fruit. When fruit was taken away there was a decrease in the number of birds that flock X contained. Flock Y consumes mostly seeds. There was no effect on flock Y when fruit was removed. Due to the fact that flock Z eats mostly insects, the flock was not affected by the removal of fruit.

Conclusion:

In this lab I learned about how favorable traits are important when nature selects what organism will survive and pass down its genes for the next generation to inherit, I also learned that most species learn to adapt to their environments so that they can have a favorable trait to be able to survive in their environment. I was able to observe that in the wilderness you need that favorable trait so that you are able to reproduce and pass down your genotypes for the next generation of you species to inherit. I gained useful skills such as how to determine the next generation’s population by analyzing results from experiments I conducted relating to the bird populations

Explanation:

i actually paid attention and did it

The oceans, lakes and rivers that cover 75% of Earth's surface are called the
A
lithosphere.
B
troposphere.
с
mesosphere.
D
hydrosphere.

What are the two intermediate types of rock?

Friction, conduction and induction are three ways of creating a static charge on an object. Which method or methods will produce the same charge on two objects?

Please help!! 10 points!

What structures have the chromosomes formed on page 5?​

A condition known as varicose veins is due to leaky venous valves and causes blood to accumulate in veins. Why are valves found in veins, especially those in the lower extremities

Go outdoors and look for ten different plants. See if you can figure out which type of seed dispersal each plant uses, and make notes about each one. Some may have more than one method of dispersal. If you find a plant that you suspect disperses seeds in a way that you haven't studied, try to figure out how the plant does it. When you're finished, write your discoveries in a list with the name of the plant you observed (if you know it; otherwise, describe the plant).

The serous fluid within the pericardial cavity works to:__.
a. eliminate blood pressure spikes.
b. equalize the pressure in the great vessels.
c. lubricate the membranes of the serous pericardium.
d. slow the heart rate.

The Gulf of Mexico dead zone is an area of hypoxic waters at the mouth of the Mississippi River. Its area varies in size, but can cover
up to 6,000 7,000 square miles. The zone occurs between the inner and mid-continental shelf in the northern Gulf of Mexico
beginning at the Mississippi River delta and extending westward to the upper Texas coast. Thousands of farms are located along the
Mississippi River and its tributaries and as water washes into the river after a heavy rain, it brings with it nutrients from fertilizers
added to farmland. These materials flow downriver and eventually enter the Gulf of Mexico, where they create conditions for a dead
zone: an area of low to no oxygen that results in the death of fish and other marine life. The Gulf of Mexico is a major source area for
the seafood industry. The Gulf supplies 72% of US harvested shrimp. 66% of harvested oysters, and 16% of commercial fish
Consequently, if the hypoxic zone continues or worsens, fishermen and coastal state economies will be greatly impacted. What can be
done to minimize the Gulf dead zone? Choose ALL that could apply
A)
B)
Control of animal wastes so that they are not allowed to enter into
waterways
Adjust the timing of fertilizer applications to limit runoff of excess
nutrients from farmland.
Monitor septic systems and sewage treatment facilities to reduce
discharge of nutrients to surface water and groundwater
Restrict land use in the areas surrounding the Mississippi delta to exclude
Industrial sites
Counter the effects of fertilizers on algal growth in the Gulf with the use
of chemical herbicides
D)
E

1. Which of the following does NOT describe a use of fossils?
O Gives an example of what past animals may have looked like.
O Determine features of the climate in which these animals lived.
.
O Provide evidence of the activity of animals at the time.
O Determine the sound that animals made during their lives.

In species like sea turtles with high juvenile mortality, low adult mortality, and low fecundity, conservationists can most effectively help them by _____. View Available Hint(s)for Part A focusing on keeping adults alive focusing on keeping juveniles alive captive breeding programs controlling predator populations

Help me please help me

Why does active
transport require
energy?
nsport.
A. Materials are moved with the
concentration gradient.
B. Materials simply flow along the
path of least resistance.
C. Materials move against a
concentration gradient.
D. It does not require energy.

What path does pollen need to travel for the plant to reproduce?.

Which of the following are controversies over water usage in the United States? Select three correct answers.  whether dams impact the volume of rivers

Whether there are hidden cost to tap water

Whether people should drink bottled or tap water

Whether water treatment should be privatized

Whether dams increase the salt level of water

Whether people should build dams on rivers

Schist rock composition?

hello humans ~
Which one of the following is not produced by the process of fermentation?

Cheese
Milk
Yoghurt
Wine​

hello humans ~
The bacterium present in curd is:

Salmonella typhi
Lactobacillus
Penicillin
Vibrio cholera​

What makes up everything around us?
Explain in detail what all living organisms are made of using the following terms: matter, atoms, elements,
compounds, and chemical bonds.

Which of the following is true regarding gene regulation in prokaryotes such as bacteria?

A: Operons in prokaryotic gene regulation always promote transcription
B:prokaryotic genes are usually transcribed as a group and have single promoter
C: prokaryotic gene expression can inducible or repressible
D: gene regulation in prokaryotes is more complex than eukaryotes

hello humans ~
______ is used for the production of alcohol and wine.

Yeast
Mosquito
Ant
Algae​

__________ and their surrounding wetlands are bodies of water usually found where rivers meet the sea.

repeatedly broke the law as she fought to bring reproductive freedom to women.
The History of Abortion: Select the best answer from the choices provided.
O A. Margaret Sanger
OB.
Elizabeth Cady Stanton
OC. Susan B. Anthony
OD.
D. Clara Barton

A muscle spindle responds to the ____. a. fatigue of the muscle b. oxygen level in the muscle c. acetylcholine concentration at the nerve-muscle junction d. stretch of the muscle

according to cell theory which are made of cells check all that apply

According to akc. Org, a typical dog can hear sounds approximately __________ times farther away than a typical human can.

In a life cycle with alternation of generations, multicellular haploid forms alternate with ________.

Describe the common tissues and structures found in accessory organs

hello humans ~
Which of the following is the non-living part of the cell?

A. Cell membrane

B. Cytoplasm

C. Mitochondrion

D. Cell wall​

CFCs can act as greenhouse gases and as chemicals that reduce the ozone levels in the stratosphere. A worldwide ban on CFCs in 1987 was enacted as part of the Montreal Protocol. However,
according to the graph, the level of CFCs did not significantly decrease after 1990. Which statement best explains the level of CFCs after 1990?