The bottleneck event that decimated the bison was caused by _______.

Answers

Answer 1

Answer: The answer is an overhunting.

The bottleneck event means drastic reduction of the population size because of environment changes. The consequence of this is the reduction of genetic variation. The bison population is a good example of the population bottleneck. The bison population drastically reduced its size due to overhunting which culminated at the end of the 19th century, when bisons almost extinct.

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The X axis on a Speed Graph is always

Answers

the time is plotted on the x axis

This cross will yield four phenotypes in the 1:1:1:1 ratio:rryy x rryy
RrYy x rryy
RrYy x RrYy
RRYY x rryy

Answers

The answer would be:

RrYy x rryy

Here's more about your question:

The Punnet square for this cross is attached below.

As you can see the results will be:

RrYy = 4/16 = 1/4

rrYy = 4/16 = 1/4

Rryy = 4/16 = 1/4

rryy = 4/16 = 1/4

All four phenotypes have a 1/4 chance of occurring. So the ration between them would be 1:1:1:1

RrYy x rryy will yield the phenotypic ratio you want, I think

A fisheries management official recommends that long line fishing in a certain area be prohibited during the spring and summer season of the year. What is the most likely reason for this?Prevent the catching of sea birds during their nesting and breeding season.
Enable the fishing fleet to catch younger fish.
Maximize fishing profits during peak tourist season.
Avoid fishing competition with foreign fishing fleets.

Answers

The correct answer for this question would be the first option. The reason that is most likely why fisheries management official recommends that long line fishing in a certain area be prohibited during the spring and summer season of the year is to prevent the catching of sea birds during their nesting and breeding season. Hope this answer helps.

Answer:

Prevent the catching of sea birds during their nesting and breeding season.

Explanation:

Some types of organisms obtain needed energy through predation.
a. True
b. False

Answers

True

Heterotrophs obtain energy by feeding on another organisms like plants or animals.

In many functions of a living organism, it cannot make its own energy. It uses energy from its environment, retrieves and converts into a usable and edible matter. Organisms that can do this process is the autotrophs, they can facilitate photosynthesis which they gather energy from the sun, water and carbon dioxide in order to create energy by then, the transfer of this energy to other organism is played by the food chain –food web.

The Answer for that question is True.

In lemmings, gray (G) fur is dominant over white (g). There is a second gene called color (C), and individuals must have at least one dominant C allele for gray color to be expressed. You obtain a white lemming that is heterozygous for gray fur color. What is its genotype?

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Answer:

Explanation:

I'm not 100%, but I do believe that is correct.

______ is a nitrogenous waste that animals must either eliminate immediately or convert to a less toxic compound

Answers

Metabolic processes produce waste and a great deal of this is in the form of nitrogen. Nitrogen combines with other molecules in the body to produce toxic compounds such as ammonia and so the animal must find a way to excrete these toxins. As we already know, this is the function of the kidneys and the rest of the renal system.

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Potatoes were the main crop in Ireland in the 1800s. Almost the entire population of Ireland was dependenton a single variety of potato, the “lumper.” These potatoes were reproduced by a method of asexualreproduction known as vegetative propagation. In the middle of the 1800s, a disease caused by a funguskilled almost the entire lumper crop within two years. As a result, millions of people in Ireland died of starvation.The most likely reason the potato disease was able to destroy the potato crop in such a short time is that the(1) potato population lacked variations(2) lumper variety had a long reproductive cycle(3) lumper had several variations caused by vegetative propagation(4) potato population in Ireland utilized all of the finite resources