What percent of speed of light is speed of light in crown glass?
A 1.97
B. 3.0 x 108
C. 66.3
D. 2.00 x 108
C. 66.3
What enzyme is responsible for adding new nucleotides to a growing DNA chain during DNA replication?
A. Ribozymes
C. RNA polymerase
B. Helicase
D. DNA polymerase
D. DNA polymerase
Where does the toxin substance secreted by bees and ants through their sting originate?
A. Silk glands
B. Intestines
C. Rectal glands
D. Salivary glands
D. Salivary glands
Diamond and graphite are polymorphs of which of the following elements?
A. Carbon
B. Nitrogen
C. Sulfur
D. Magnesium
A. Carbon
Which of the following metals melts in your hand?
A. Gallium
B. Cesium
C. Sodium
D. Magnesium
A. Gallium
Which cellular structures are described as hair-like and aid in the movement of cells or substances around cells?
A. Flagella
B. Cilia
C. Microtubules
D. Pseudopodia
B. Cilia
What are the non-sex chromosomes called?
A. Gonads
B. Sex cell
C. Gametes
D. Autosomes
D. Autosomes
What condition comes about it when two alleles both appear in the phenotype?
A. Codominance
B. Multiple Alleles
C. Sex-linked Alleles
D. Incomplete Dominance
A. Codominance
What part of the earth is thought to be composed of iron and nickel?
A. Hydrosphere
B. Asthenosphere
C. Lithosphere
D. Core
D. Core
Which of the following is a unit of work?
A. W
B. J.s
C. N/s
D. N.m
D. N.m
Who first used the word “genetics”?
A. Imre Festetics
B. Hugo de Vries
C. Gregor Mendel
D. William Bateson
D. William Bateson
The power rating if an electric motor that draws current 3A when operated at 120 V is
A. 40 W
B. 360 W
C. 540 W
D. 1080 W
B. 360 W
Four identical light bulbs are used in a circuit. When the amount is measured, the reading is almost the same for all the bulbs. What kind of circuit is used to connect the bulbs?
A. Short circuit
B. Compound circuit
C. Series circuit
D. Parallel circuit
D. Parallel circuit
What term best describes the relationships between different organisms in a food web?
A. Isolated
B. Competitive
C. Intertwined
D. Repetitive
C. Intertwined
Which hormones stimulate the growth of buds and sprouts on branches of trees?
A. Gibberellins
B. Cytokinin
C. Auxins
D. Abscisic acid
B. Cytokinin
In its function in the circulatory system, ventricles_______
A. Receive blood from the lungs
B. Keep blood moving in the prop direction
C. Pump blood out of the heart
D. Receive blood coming into the heart
C. Pump blood out of the heart
What substance in the chromosomes is responsible for the chemical properties of genes?
A. Ribonucleic Acid
B. Nucleotide
C. Deoxyribose Nucleic Acid
D. Nitrogenous base
C. Deoxyribose Nucleic Acid
What is the second abundant element in the human body accounting for 18% of the body
A. Carbon
B. Hydrogen
C. Nitrogen
D. Oxygen
A. Carbon
At which organelle are proteins manufactured?
A. Nucleus
B. Mitochondrion
C. Ribosome
D. Vacuole
C. Ribosome
