Jaiv

1. Which best explains how frogs can survive cold, northern winters?

a. The gills are designed to pull oxygen from icy pond water.

b. The three-chambered heart system stores oxygen for the winter.

c. Their circulatory systems freeze for winter and thaw in the spring.

d. They breathe through their skin while protected in pond mud.

2. Which is a characteristic of a newly hatched bullfrog tadpole?

a. carnivore diet

b. gill breathing

c. hind legs

d. large jaws

3. Which is part of the amphibian reproductive and development process?

a. Females lay eggs with a tough, leathery, protective covering.

b. Males fertilize the eggs laid in the water by females.

c. Tadpoles are born with gills, fins, and a three-chambered heart.

d. young amphibians turn into tadpoles soon after hatching.

4. Which type of amphibian has a poisonous gland in the back of its head to deter predators?

a. frog

b. newt

c. salamander

d. toad

Okay so i'm revising for my quiz tomorrow and my teacher gave me some notes but I still need help because i'm a bit confused with a few questions and this is one of the problems. And please explain step by step because I need to understand this. Thanks A lot for all the help!

Find all excluded values for the expression.

That is, find all values of "v" for which the expression is undefined.

v+3/v+6

If there is more than one value, separate them with commas.

This problem looks familiar but i forgot exactly how it's done. I'm sure it's easy but i can't remember exactly how to do it so if you can please explain it I would really appreciate it!

Simplify.

5x^2-45/x^2-10x+21

Answer the following division.

(12x^3+35x^2+28x+13)/(3x+5)

Your answer should give the quotient and the remainder.

Quotient:

Remainder:

Can you please explain how you got the answer?!

Thanks a lot for the help!!

1. In these chapters several disturbing things happen to Melinda: She faints at school; IT approaches her at school; the guidance counselor calls her parents about her bad grades, etc. After these things happen, Melinda describes the weather: "A minor blizzard blows outside. The weather lady says it's a lake-effect story. The wind from Canada sucks up water from Lake Ontario, runs it through the freeze machine, and dumps it on Syracuse. I can feel the wind fighting to break through our storm windows. I want the snow to bury our house." How does this description of weather mirror Melinda's feelings and what is going on with her at this point in the book? Thanks sooo much for the help!!

1. What happens to Melinda during the frog dissection lesson?

2. Melinda hears two girls, Siobhan and Emily talking about IT. At this point we discover his real name. What is it?

3.Throughout the novel, Melinda uses the metaphor of "theater" and "playacting" to describe her family life. How is theater an appropriate metaphor for Melinda's family?

4. What does the art that Melinda creates reveal about her? What do you think she includes a Barbie with tape over its mouth? What does Mr. Freeman think this are reflects?

Thanks a lot for the help!

Find the midpoint M of the line segment joining the points P=(1,1) and Q=(-3,-5)

-2x^2-x-9=0

Use the quadratic formula to solve for x. 7x^2-3x-2=0

Use the quadratic formula to solve for x. 2x^2+5x-4=0

I'm writing an essay and just couldn't figure out exactly what i needed to get my introduction paragraph started if you can please explain a few things that the introduction paragraph of my response to literature essay should contain. Thank You!

Use the quadratic formula to solve for x. -5x^2-3x-1=0

Compute the value of the discriminant and give the number of real solutions of the quadratic equation.

-5x^2-3x-1=0

Find the midpoint M of the line segment joining the points P=(-3,4) and Q=(-7,-2)

Please explain step by step.

Thanks a lot for your help!

Compare the red outlive, Japan's holdings in 1942, to the yellow outline, Japan's holdings in 1945. How much progress did the Allies make in three years? Who controlled most of the territory? Do you think the U.S. strategy of Island Hopping was working?

Pearl Harbor: Imagine that you are an American living back in 1941. You have just heard the news that Pearl Harbor has been attacked and you are now listening to President Roosevelt's speech. What is going through your mind? Describe your thoughts and evaluate what action you think the US should take. Finally, describe what you are going to do to help. Only 8-11sentences please! :) Thanks A Lot!!!

Multiply.

(4v-u+5)(2v-u+3)

Simplify your answer.

Solve for y. 5/2y-5/6=-5/3y+6

Solve for x. -4x-1/2=2/3x-7/3

Solve for x. -4x-1/2=2/3x-7/3