Which atmospheric layer contains the ozone layer?

Humans can breed plants and animals to have useful traits. By selecting which animals are allowed to reproduce, humans can influence an organism’s genotype. What name did Darwin use to describe this process?

Which of the following is equal to the atomic number of a chemical element?

Which type of symbiotic relationship takes place when one member of the association benefits while the other is harmed?

In the field of genetics, an organism’s appearance is referred to as its:

The tilt of the Earth's rotational axis toward or away from the sun causes:

The Big Bang theory is a model used to explain the:

Animals that feed exclusively on plants are called:

Which of the following biological classifications is the largest and most inclusive?

The energy of an object resulting solely from motion is:

Sara jumped off her row boat into the lake. As she pushed her body forward the boat moved backwards. Which of Newton’s laws best describes the motion of Sara and her boat?

A sudden intense brightening from a small area of the Sun's surface is called a:

Waves bend when they move around obstructions or pass through narrow openings. This type of bending is called:

What is true of Meiosis?

Two objects on Earth are dropped from the top of a building that is 70 meters high. Object A has a mass of 12 g and object B has a mass of 6 kg. Assuming there is no air resistance, which object will hit the ground first?

There are 5 blue marbles, 4 red marbles, and 3 yellow marbles in a box. If Jim randomly selects a marble from the box, what is the probability of selecting a red or yellow marble?

If Kayla left a $10.47 tip on a breakfast that cost $87.25, what percentage was the tip?

A phone company charges $2 for the first five minutes of a phone call and 30 cents per minute thereafter. If Malik makes a phone call that lasts 25 minutes, what will be the total cost of the phone call?

If 10 inches on a map represents an actual distance of 100 feet, then what actual distance does 25 inches on the map represent?

Five years ago, Amy was three times as old as Mike. If Mike is 10 years old now, how old is Amy?

At a used book store, Valentina purchased three books for $2.65 each. If she paid with a $20 bill, how much change did she receive?

Mia earns $8.10 per hour and worked 40 hours. Charlotte earns $10.80 per hour. How many hours would Charlotte need to work to equal Mia’s earnings over 40 hours?

Aisha wants to paint the walls of a room. She knows that each can of paint contains one gallon. A half gallon will completely cover a 55 square feet of wall. Each of the four walls of the room is 10 feet high. Two of the walls are 10 feet wide and two of the walls are 15 feet wide. How many 1-gallon buckets of paint does Aisha need to buy in order to fully paint the room?

There are 4 red marbles and 8 green marbles in a box. If Emma randomly selects a marble from the box, what is the probability of her selecting a red marble?

Oscar purchased a new hat that was on sale for $5.06. The original price was $9.20. What percentage discount was the sale price?

There are two pizza ovens in a restaurant. Oven #1 burns three times as many pizzas as Oven #2. If the restaurant had a total of 12 burnt pizzas on Saturday, how many pizzas did Oven #2 burn?

Sofía is driving to Texas. She travels at 70 kilometers per hour for 2 hours, and 63 kilometers per hour for 5 hours. Over the 7 hour time period what was Sofía’s average speed?

Stephen signed up to bring 5 gallons of lemonade to the company picnic. He has a 5-gallon bucket which contains 3.5 gallons of lemonade. How many pints of lemonade will he need to add in order to fill the bucket?

If a car travels 360 kilometers in 5 hours, how many kilometers will it travel in 9 hours when driving at the same speed?

Maya purchased a boat for $18,340. Its value depreciated by 15% in the first year she owned it. What was her boat worth at the end of this first year?

The radar system beeps once every second. How many times will it beep in 3 days?

The teenager abandoned his job because he found it to be onerous.

Disparate most nearly means

She did not condone his insubordination.

The new senator was a man of candor.

Contrived most nearly means

I paid a nominal amount of money to join the stamp collecting club.

Clandestine most nearly means

The fetid liquid soaked through my shoes.

Instigate most nearly means

Our relationship was ephemeral.

Abrogate most nearly means

The agency's controversial decision was not based on any empirical evidence.

Deference most nearly means

Legitimate most nearly means

My speech got little applause from the apathetic audience.

There is camaraderie within the small groups at our church.

Simplify:

(x⁶)(x⁵)

3(x + 1) = 5(x − 2) + 7

If y = 3ab + 2b³, what is y when a = 1 and b = 2?

A rectangle is cut in half to create two squares that each has an area of 25. What is the perimeter of the original rectangle?

44 is 80% of what number?

26 − 7(3 + 5) ÷ 4 + 2

Which of the following numbers is the greatest? 2/3 or 0.6 or 13/22 or 0.08

In the figure below, lines d and f are parallel and the angle measures are as given. What is the value of x?

Simplify:

(7y² + 3xy − 9) − (2y² + 3xy − 5)

6.6 × 10⁻⁴ =

What is the value of this numerical expression √6² + 8²

List A consists of the numbers {2, 9, 5, 1, 13}, and list B consists of the numbers {7, 4, 12, 15, 18}.

If the two lists are combined, what is the median of the combined list?

Simplify the factorial:

6! =

Solve:

(−3)³ =

If 6w + 4 = 8w, then 4w =

Factor:

4y(3x + 2) − 2(3x + 2)