Round 1

Question 1

What is the most common term used in genetics to describe the observable physical characteristics of an organism?

Answer 1

PHENOTYPE

Phenotype results from the expression of genes.

Question 2

What is the biological term for the act of a cell engulfing a particle by extending its pseudopodia around the particle?

Answer 2

PHAGOCYTOSIS

Phagocytosis is a form of endocytosis.

Question 3

An aqueous solution in which the concentration of OH ions is greater than that of Ht ions is called _______.

Answer 3

BASIC

Basic solutions have a pH greater than 7.

Question 4

Find the mass of 1 mole of cuprous oxide, or Cu2O, given the atomic mass of copper is 64 and oxygen is 16.

Answer 4

144

The mass is calculated as (2*64) + 16 = 144.

Question 5

What property of a sound wave is most commonly associated with loudness?

Answer 5

AMPLITUDE

Amplitude refers to the height of the wave and is directly related to the perceived loudness of the sound.

Question 6

What is the MOST common term for the behavior of light where it appears to bend around small obstacles?

Answer 6

DIFFRACTION

Diffraction also refers to the spreading out of waves as they pass through pinholes or slits.

Question 7

What term BEST describes 2 angles with 90° as the sum of their measurements?

Answer 7

COMPLEMENTARY

Complementary angles are two angles whose measures add up to 90 degrees.

Question 8

Divide the following and give your answer in scientific notation: 8 × 10’ / (4 × 10*)²

Answer 8

4 × 10⁵

This calculation involves dividing coefficients and applying the laws of exponents.

Question 9

What is the overall charge at the top and bottom of a towering cumulonimbus cloud during a thunderstorm?

Answer 9

Positive at the top, negative at the bottom

The correct answer is X) positive, negative.

Question 10

If a lightning bolt is seen and its accompanying thunder is heard 15 seconds later, how many miles away is the storm?

Answer 10

3 miles

The correct answer is W) 3.

Question 11

How many significant figures are in the number 0.00750?

Answer 11

3

Significant figures include all non-zero digits, any zeros between significant digits, and any trailing zeros in the decimal portion.

Question 12

What is the result of subtracting 25.101 and 0.9608 with the proper significant figures?

Answer 12

24.140

The answer must be expressed with the correct number of decimal places based on the original numbers.

Question 13

What is the proper name of the star that is most commonly noted to have coordinates closest to the north celestial pole?

Answer 13

NORTH STAR

Also known as POLARIS or ALPHA URSA MINORIS.

Question 14

What is the most well-known asterism in Ursa Major?

Answer 14

BIG DIPPER

Question 15

Human epidermis is mostly composed of which of the following basic animal tissue types? (W) epithelial, (X) connective, (Y) nervous, (Z) muscle

Answer 15

W) EPITHELIAL

Question 16

What are the 2 basic categories of lymphocyte cells?

Answer 16

T AND B

Also accepted as B AND T CELLS.

Question 17

What general type of bonding is found in molecules in which electrons are shared by nuclei?

Answer 17

COVALENT

Covalent bonding occurs when two atoms share one or more pairs of electrons.

Question 18

Name all of the following processes where latent heat is absorbed: evaporation; condensation; water melts; water freezes.

Answer 18

EVAPORATION; WATER MELTS

Latent heat is absorbed during phase changes such as evaporation and melting.

Question 19

What was the first form of spectacular electric discharge seen by humans?

Answer 19

LIGHTNING

Lightning is a natural electrical discharge that occurs during storms.

Question 20

A constant force acting on a body experiencing no change in its environment will give the body:

Answer 20

CONSTANT ACCELERATION

According to Newton’s second law of motion, constant force results in constant acceleration.

Question 21

What is the simplified expression of (a^b)(a^b) where a is not equal to zero if b = 0 or b = -1?

Answer 21

ab

This expression is derived from the property of exponents.

Question 22

In a 45-45-90° triangle with a hypotenuse of 10 inches, what is the length of the other sides?

Answer 22

5√2

The sides are equal in a 45-45-90 triangle, each being hypotenuse divided by √2.

Question 23

Which of the following is a sedimentary rock: slate, marble, basalt, or sandstone?

Answer 23

sandstone

Sandstone is formed from the compaction and cementation of sand-sized particles.

Question 24

Which statement is LEAST accurate about minerals: calcite’s hardness, Moh’s scale, chemical composition, or streak color?

Answer 24

a mineral’s color is the same as its streak

Streak can differ from the mineral’s color; it is the color of the powder produced when the mineral is scraped.