A. What is a keystone predator? B. How are sea otters an example of this? C....
A. What is a keystone predator?
B. How are sea otters an example of this?
C. Why are some people happy about the loss of otters?
Homework Answers
Q.A. Answer-
1. Keystone predator are the species prevents one species from outcompeting others and thus maintaining high levels of species richness in a community.
2. Keystone predators keeps check on population and range of their prey and shows impact on other predators and animals and plants present down in food chain.
Q.B. Answer-
1. Sea otters act as keystone predator to protect kelp forest from damage by sea urchins.
2. When the overhunting of sea otters reduces their population results in increased population of sea urchins as sea otters controls population of sea urchin by eating them.
3. The increased sea urchins population in turn grazed holdfasts of kelp so heavily that causes large disappearance of kelp forest along with other species that depended on kelp forest.
4. So that sea otters is the example of keystone predators as it shows large effect on Kelp forest and community at kelp forest.
Q.C. Answer-
1. When population of sea otters decreases, population of sea urchins increases as sea otters feeds on sea urchins.
2. Sea urchin is considered as delicacy food and it is reputed as delicacy in many countries. so that if population of sea urchins increases as population of sea otters decreases, some people happy because they will get more urchins.
Add Answer to:
A. What is a keystone predator?
B. How are sea otters an example of this?
C....
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Using data provided in the table below, calculate how many whales feeding exclusively on sea otters...
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please answe all four
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predator prey question
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I need everyone question please!! Predator prey model captures the dynamics of the both organisms using...
I need everyone question please!!
Predator prey model captures the dynamics of the both organisms using the following equation: dN -=rN - ANP 4 = baNP-mP dt 1) What is the meaning of the parameters r, a, b and m in this model? (20pts) 2) In the first equation dN/dt=rN-aNP, explain what is the logic behind multiplying the abundances of the prey and the predator (NP). (10pts) Using this model and posing each equation equals to zero and solving this,...
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4. In the past century, sea otters in the California coast have been hunted to almost extinction. Nowadays, few populations remain. As a biologist, your job is propose a plan to help maintain healthy populations of otters. The initial step, however, is to identify any signs of inbreeding (i.e., non-random mating) in the existing two populations, so you can better manage them. Here is what you know about a particular locus (A) that you are using in your genotyping studies:...
Using data provided in the table below, calculate how many whales feeding exclusively on sea otters it would take to eat 40,000 sea otters. (p. 117) For this answer, you should do your calculation by hand on a separate paper, showing your work. Take a snapshot of that paper and insert it into this document using Insert Picture in Word. C. Could predation by killer whales account for a 90 percent decrease in otter numbers? If increased predation by killer...
Match the following animals with their associated disease. Manatees Toxoplasmosis V A Sea otters B. Otariid herpesvirus V Sea turtles Chelonid herpesvirus 5 C! Sea lions D. Sirenian papillomavirus
please answe all four
thankyou
Name: 18. In the northern Pacific Ocean sea otters feed on sea urchins and on starfish. sea urchins Teed on kelp and starfish feed on mussels. Beginning in the 1700s, sea otters were hunted for theirfur and driven nearly to extinction in some areas, resulting in trophic cascades in their communities. When the fur trade ended, sea otter numbers increased and their communities began to recover. One would expect that this recovery would result in...
How Does Evolutionary Change Occur? "I soon perceived that selection was the keystone of man's success in making useful races of animals and plants. But how selection could be applied to organisms living in a state of nature remained for some time a mystery to me." - Charles Darwin Introduction Fundamentally, evolution is the idea that the form and behaviors of a species are not fixed - that they can change over time. Before Darwin was even born, some scientists...
predator prey question
b= d- 0.55 0.05 T= 0.03 a0.0009 IF By Lynx and Hare How many animats populations each will each population 100 in year o, change from year to year 2 ? ? From Year 2 to Year 3 Explain what the terms a, b, d and represent Show your work
I need everyone question please!!
Predator prey model captures the dynamics of the both organisms using the following equation: dN -=rN - ANP 4 = baNP-mP dt 1) What is the meaning of the parameters r, a, b and m in this model? (20pts) 2) In the first equation dN/dt=rN-aNP, explain what is the logic behind multiplying the abundances of the prey and the predator (NP). (10pts) Using this model and posing each equation equals to zero and solving this,...
14. What is "discrimination”? a. A typical example of a category b. Unequal treatment of different groups of people c. An unfavorable attitude toward a group of people d. A belief about a group of people --- I 15. Implicit association test tries to reveal which of the following? a. Untapped talents and potential strengths b. Long-forgotten memories c. Probability of later developing certain psychological disorders d. Prejudices that people don't want to admit
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