Finches having either a large bill or no size in between represents
Homework Answers
Answer: Disruptive selection
Explanation: Natural Selection leads to evolutionary changes in an organism. This is done by selecting the best fit trait for the individual organism or the trait which can make the organism survive and reproduce.
- It is mainly of three types:
- Disruptive
- Stabilizing
- Directional
- In Disruptive selection the extreme phenotypic values are favoured over the average/medium ones. It is also known as diversifying selection as it leads to deviation in the species.
- The below graph shows this selection in Finches.
- Through this type of selection finches evolved into extreme diverse species with no in between species. This variation was due to the seed size available on the island called Galapagos.
- Two phenotypes were seen
- Big beaks for big seeds
- Small beaks for small seeds
- In-between medium beaks were not able to get the small seeds. Apart from this, they didn’t have strong beak to get bigger seeds as well. Hence disruptive selection occurred in the finch populations.
Researchers examined the bill color (in hue degree) of male and female zebra finches. Here are some summary statist...
Researchers examined the bill color (in hue degree) of male and female zebra finches. Here are some summary statistics from the study: Males 59 Mean 2.91 7.42 Standard Deviation 1.46 2.48 Females We wish to address the question, How different are male and female zebra finches in bill color?! What is the margin of error for a 95% confidence interval for the difference in mean bill color MF - um (in hue degree)? A) 1.40 B) 1.02 C) 0.83 D)...
You are studying a population of finches that has a large variety of colorations and lives...
You are studying a population of finches that has a large variety of colorations and lives on an isolated island. Due to a hurricane, many birds die, and only a small number survive. In this new small population, you notice that the frequency of the yellow coloration is higher than before the hurricane. What mechanism explains this change? A. Genetic drift because there is a sampling error due to a bottleneck. There is also no coloration that would help survive...
If independent random samples of size n1 = n2 = 8 come from normal populations having...
If independent random samples of size n1 = n2 = 8 come from normal populations having the same variance, what is the probability that either sample variance will be at least 7 times as large as the other?
Do you think there is a connection between having too large of population and categories, making...
Do you think there is a connection between having too large of population and categories, making median inappropriate to use? Please help. Thanks
Suppose we select and SRS of size n=100 from a large population having proporti...continues
Suppose we select and SRS of size n=100 from a large population having proportion p of successes. Let X be the number of successes in the sample. For which value of pwould it be safe to assume the sampling distribution of X is approximately Normal?(a) 0.01(b) 1/9(c) 0.975(d) 0.9999(e) All of these.
In an experiment, college students were given either four quarters or a $1 bill and they...
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Purchased Gum Kept the Money Students Given Four Quarters 26 18 Students Given a $1 Bill 14 28 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. The probability...
Figure 8-19. The figure represents the relationship between the size of a tax and the tax...
Figure 8-19. The figure represents the relationship between the size of a tax and the tax revenue raised by that tax. 9 Tax Revenue 8 7 6 5 B 4 3 2 Tax Size Refer to Figure 8-19. If the economy is at point B on the curve. then an increase in the tax rate will increase the deadweight loss of the tax and increase tax revenue. increase the deadweight loss of the tax and decrease tax revenue. decrease the...
Please help with ALL Muscles Across 1) either of two large muscles of the chest 6)...
Please help with ALL
Muscles Across 1) either of two large muscles of the chest 6) Any skeletal muscle having three origins 8) Any skeletal muscle having two origins Down 2 Either of two flat triangular muscles of the moving the shoulders and arms 3) Muscles of the stomach. er and upper that are involved in Oem oto back part of the leg that forms 4) A broad flat muscle on other side of the back greater part of the...
Bill can produce either tables or chairs. Bill can work up to 10 hours a day....
Bill can produce either tables or
chairs. Bill can work up to 10 hours a day. His production
possibilities are given in the table below:
1. Construct the production possibilities frontier (PPF) for
Bill. Put tables on the Horizontal axis and chairs on the vertical
axis.
2. What is Bill’s opportunity cost of producing one additional
table?
3. What is Bill’s opportunity cost of producing one additional
chair?
4. Currently Bill is producing 20 tables and 40 chairs.
a. Is...
In an experiment, college students were given either four quarters or a $1 bill and they...
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Students Given Four Quarters Students Given a $1 Bill Purchased Gum 29 18 Kept the Money 15 33 a. Find the probability of randomly selecting a student who spent the money, given that the student was given a $1 bill. The...
Researchers examined the bill color (in hue degree) of male and female zebra finches. Here are some summary statistics from the study: Males 59 Mean 2.91 7.42 Standard Deviation 1.46 2.48 Females We wish to address the question, How different are male and female zebra finches in bill color?! What is the margin of error for a 95% confidence interval for the difference in mean bill color MF - um (in hue degree)? A) 1.40 B) 1.02 C) 0.83 D)...
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Purchased Gum Kept the Money Students Given Four Quarters 26 18 Students Given a $1 Bill 14 28 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. The probability...
Figure 8-19. The figure represents the relationship between the size of a tax and the tax revenue raised by that tax. 9 Tax Revenue 8 7 6 5 B 4 3 2 Tax Size Refer to Figure 8-19. If the economy is at point B on the curve. then an increase in the tax rate will increase the deadweight loss of the tax and increase tax revenue. increase the deadweight loss of the tax and decrease tax revenue. decrease the...
Please help with ALL
Muscles Across 1) either of two large muscles of the chest 6) Any skeletal muscle having three origins 8) Any skeletal muscle having two origins Down 2 Either of two flat triangular muscles of the moving the shoulders and arms 3) Muscles of the stomach. er and upper that are involved in Oem oto back part of the leg that forms 4) A broad flat muscle on other side of the back greater part of the...
Bill can produce either tables or
chairs. Bill can work up to 10 hours a day. His production
possibilities are given in the table below:
1. Construct the production possibilities frontier (PPF) for
Bill. Put tables on the Horizontal axis and chairs on the vertical
axis.
2. What is Bill’s opportunity cost of producing one additional
table?
3. What is Bill’s opportunity cost of producing one additional
chair?
4. Currently Bill is producing 20 tables and 40 chairs.
a. Is...
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Students Given Four Quarters Students Given a $1 Bill Purchased Gum 29 18 Kept the Money 15 33 a. Find the probability of randomly selecting a student who spent the money, given that the student was given a $1 bill. The...
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