15. A scientist has morphological evidence indicating that a population of organisms thought to be one...
15. A scientist has morphological evidence indicating that a population of organisms thought to be one species may actually be two. What other evidence might be useful to this problem and why?
Homework Answers
Evidence of reproductive isolation within the population might serve as an evidence to show that the population is not one but two species.This is because the biological species concept defines a species as members of populations that actually or potentially interbreed in nature and not just the ones that are morphologically similar .
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15. A scientist has morphological evidence indicating that a
population of organisms thought to be one...
Based on fossil evidence, it appears that the original population of Furred Zee-s split, where a...
Based on fossil evidence, it appears that the original population of Furred Zee-s split, where a subset of the population moved towards the south and became isolated after an earthquake created a large rift through the continent The southern Zee population evolved over time to have significantly less fur that the original population and have been considered a separate species (Naked Zee-s) . A few of the fossil organisms have indications of fur, suggesting that the ancestral state was furred...
1. A population of monkeys on an island in the Amazon river is preyed upon by...
1. A population of monkeys on an island in the Amazon river is preyed upon by margays (a type of small cat). Within this population the largest monkeys are too big for the margays to catch and the smallest monkeys are too agile for the margays to catch. Thus the mid-size monkeys have the lowest fitness. Over time this population could potentially split into two populations and two separate species of large and small monkeys. What type of speciation would occur...
6. Let the random variables X and Y represent the population of two species/organisms that compete...
6. Let the random variables X and Y represent the population of two species/organisms that compete with each other for survival. Suppose that the probability density function p(x, y) of these random variables is proportional to rye-(az+By) (a) What would be an appropriate sample space S for the random variables? Justify your choice of S. (b) Let p(x, y)-Krye-(az-+8v). What should be the proportionality constant K? (c) What is the most probable set of populations (X, Y)? (Hint: The probability...
5. A paper published this year concluded that the giant Chinese paddlefish should be declared officially...
5. A paper published this year concluded that the giant Chinese paddlefish should be declared officially extinct. (15 pts) a. We often agree on the year an old species goes extinct, but we rarely agree on the year new species arises. Why? b. Why might we expect mass extinctions to be followed by adaptive radiations? c. Much of our evidence for mass extinctions come from shelled, near-shore organisms. Give two reasons for this. Reason 1: Reason 2: d. Suppose one...
Could someone check my answers, please? 1. Suppose that a species of fish has split into...
Could someone check my answers, please? 1. Suppose that a species of fish has split into two populations in a lake: one on the eastern side and one on the western side. How could you determine whether the two populations constitute different species? A. Examine the populations for morphological, color, or other physical differences. B. Examine the populations for different genetic markers and allele frequencies. C. Attempt to breed members from the two populations in captivity. D. Introduce members from...
The question on the pic 5. A paper published this year concluded that the giant Chinese...
The question on the pic
5. A paper published this year concluded that the giant Chinese paddlefish should be declared officially extinct. (15 pts) a. We often agree on the year an old species goes extinct, but we rarely agree on the year new species arises. Why? b. Why might we expect mass extinctions to be followed by adaptive radiations? c. Much of our evidence for mass extinctions come from shelled, near-shore organisms. Give two reasons for this. Reason 1:...
Write a program to help answer questions like the following: Suppose the species Klingon ox has...
Write a program to help answer questions like the following: Suppose the species Klingon ox has a population of 100 and a growth rate of 15 percent, and the species elephant has a population of 10 and a growth rate of 35 percent. How many years will it take for the elephant population to exceed the Klingon ox population? You can assume that this will happen within 10 years. Use the version of the class Species from Sakai’s Week 7...
61. There is one population of Rarus the beginning of the year. After one individuals died after giving birth. What is the per capisa rate of growb arissiumus left. The year, there are 30 individ...
61. There is one population of Rarus the beginning of the year. After one individuals died after giving birth. What is the per capisa rate of growb arissiumus left. The year, there are 30 individuals All of the initial 10 A. 3 B. 2 D. 0 E. Cannot tell from given information 62. In 2001 in Shandbrook, the per capita birth and death rates were 0.010 and 0.012. respectively. Assuming r remains constant foe this population, how long will it...
A continental population of songbirds has a locus for beak colour with two alleles: AA=red, Aa=orange,...
A continental population of songbirds has a locus for beak colour with two alleles: AA=red, Aa=orange, and aa=yellow; A is at 80% in the population and a is at 20%. In a founder event involving a single pregnant female, who mated once before flying away to a remote island, the probability of the new population being all yellow- beaked is approximately what? One in five. One in ten. One in 1,000. One in 100. Question 17 (1 point) Dogs (Canis...
Question 1: Homeostasis, Common Ancestry, and Divergence a) One problem that all respiring organisms share is...
Question 1: Homeostasis, Common Ancestry, and
Divergence
a) One problem that all respiring organisms share is the
need for biological structures that allow efficient uptake of
oxygen and removal of carbon dioxide. Two types of structures that
have evolved for carrying out gas exchange are gills and lungs. The
table below lists organisms according to the type of structure they
use for gas exchange.
Describe the general process of gas exchange that occurs
between a gill or lung and the...
6. Let the random variables X and Y represent the population of two species/organisms that compete with each other for survival. Suppose that the probability density function p(x, y) of these random variables is proportional to rye-(az+By) (a) What would be an appropriate sample space S for the random variables? Justify your choice of S. (b) Let p(x, y)-Krye-(az-+8v). What should be the proportionality constant K? (c) What is the most probable set of populations (X, Y)? (Hint: The probability...
5. A paper published this year concluded that the giant Chinese paddlefish should be declared officially extinct. (15 pts) a. We often agree on the year an old species goes extinct, but we rarely agree on the year new species arises. Why? b. Why might we expect mass extinctions to be followed by adaptive radiations? c. Much of our evidence for mass extinctions come from shelled, near-shore organisms. Give two reasons for this. Reason 1: Reason 2: d. Suppose one...
The question on the pic
5. A paper published this year concluded that the giant Chinese paddlefish should be declared officially extinct. (15 pts) a. We often agree on the year an old species goes extinct, but we rarely agree on the year new species arises. Why? b. Why might we expect mass extinctions to be followed by adaptive radiations? c. Much of our evidence for mass extinctions come from shelled, near-shore organisms. Give two reasons for this. Reason 1:...
61. There is one population of Rarus the beginning of the year. After one individuals died after giving birth. What is the per capisa rate of growb arissiumus left. The year, there are 30 individuals All of the initial 10 A. 3 B. 2 D. 0 E. Cannot tell from given information 62. In 2001 in Shandbrook, the per capita birth and death rates were 0.010 and 0.012. respectively. Assuming r remains constant foe this population, how long will it...
A continental population of songbirds has a locus for beak colour with two alleles: AA=red, Aa=orange, and aa=yellow; A is at 80% in the population and a is at 20%. In a founder event involving a single pregnant female, who mated once before flying away to a remote island, the probability of the new population being all yellow- beaked is approximately what? One in five. One in ten. One in 1,000. One in 100. Question 17 (1 point) Dogs (Canis...
Question 1: Homeostasis, Common Ancestry, and
Divergence
a) One problem that all respiring organisms share is the
need for biological structures that allow efficient uptake of
oxygen and removal of carbon dioxide. Two types of structures that
have evolved for carrying out gas exchange are gills and lungs. The
table below lists organisms according to the type of structure they
use for gas exchange.
Describe the general process of gas exchange that occurs
between a gill or lung and the...
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