You are in Competition mode!

Enter to start; Spacebar to buzz; "Esc" to cancel a running question.

High School Set 15 (2021) - Round 7 - Question 9

See the original
Report a problem

BONUS: MATH Short Answer

What is the y-coordinate of the y-intercept of the line tangent to the circle x² + y² = 25 at the point (4, 3)?

Click or hit Enter to start
High School Set 8 (2014) - Round 8 - Question 15

See the original
Report a problem

BONUS: BIOLOGY Multiple Choice

Duchenne [duh-SHEEN] muscular dystrophy is the result of a recessive disease allele [uh-LEEL] for a gene on the X-chromosome. Which of the following is true regarding inheritance of the disease?

  • W. Females have twice the chance of developing it, because they have two X chromosomes
  • X. Mothers with the disease allele can pass it with equal probability to sons or daughters
  • Y. Inbreeding has no effect on the likelihood of inheriting this disease
  • Z. An affected son is always produced if his father has the disease allele
Click to start
Middle School Set 3 (2007) - Round 3 - Question 24

See the original
Report a problem

TOSS-UP: LIFE SCIENCE Short Answer

What are the common names, respectively, for the 2 types of lenses of a compound light microscope that function first to magnify the light just after the light passes through the specimen on the slide and then just before the light enters the observer's eyes?

Click to start
Middle School Set 15 (2021) - Round 2 - Question 15

See the original
Report a problem

BONUS: PHYSICAL SCIENCE Short Answer

How many double bonds are present in one molecule of butyl-amine [BYOO-til-ah-MEEN]?

Click to start
High School Set 15 (2021) - Round 5 - Question 13

See the original
Report a problem

TOSS-UP: BIOLOGY Short Answer

What is the term for rod-shaped prokaryotic [PRO-care-ee-AW-tic] cells?

Click to start
High School Set 1 (2009) - Round 7 - Question 25

See the original
Report a problem

TOSS-UP: BIOLOGY Short Answer

What is the most common name for the micro-gametophyte in flowering plants?

Click to start
Middle School Set 5 (2011) - Round 7 - Question 1

See the original
Report a problem

TOSS-UP: Earth and Space Science Multiple Choice

Which of the following is NOT a reasonable line of evidence for a global cooling event?

  • W. Glacial tills at low latitudes
  • X. Heightened sea levels
  • Y. Reduced photosynthesis
  • Z. Reduced hydrologic cycle
Click to start
Middle School Set 1 (2009) - Round 2 - Question 20

See the original
Report a problem

BONUS: LIFE SCIENCE Multiple Choice

Which of the following terms is used by microbiologists for a bacterium with a rod shape:

  • W. tubular
  • X. bacillus
  • Y. trichome
  • Z. cylindrical
Click to start
High School Set 8 (2014) - Round 7 - Question 11

See the original
Report a problem

BONUS: MATH Multiple Choice

Consider a circle in which a square is inscribed. Inscribed within that square is another circle. If the innermost circle has circumference of 12π, what is the area of the outermost circle?

  • W. 64π
  • X. 72π
  • Y. 88π
  • Z. 96π
Click to start
High School Set 8 (2014) - Round 5 - Question 4

See the original
Report a problem

BONUS: Earth and Space Short Answer

Identify both the general habitat and type of organisms that are represented by the oldest fossils of the Paleozoic [pay-lee-uh-ZOH-ik] Era.

Click to start

Next Question Set