This chart represents characteristics of four different plants. Which plant is most likely a gymnosperm?
A Plant 1
B Plant 2
C Plant 3
D Plant 4
This diagram shows a food web of a meadow. Due to insecticides, the cricket population is greatly reduced. Which population is most affected by this event?
A Mouse
B Hawk
C Grass
D Frog
RNA and DNA are which type of organic compound?
A carbohydrate
B lipid
C nucleic acid
D protein
A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cell process will be stopped?
A osmosis
B photosynthesis
C protein synthesis
D respiration
Which is an example of osmosis?
A potassium ions moving in and out of an animal cell
B carbon dioxide moving into the leaf cells of a plant
C oxygen moving into the bloodstream from the lungs
D water moving into the root cells of a plant
This diagram shows an enzyme-substrate complex. Which is represented by Structure X?
A substrate
B product
C enzyme
D complex
Which conclusion can be made from these observations?
A Only Species Y is aerobic.
B Only Species Y is anaerobic.
C Both Species X and Y are aerobic.
D Both Species X and Y are anaerobic.
Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children?
A 0% Hh : 100% hh
B 50% Hh : 50% hh
C 75% Hh : 25% hh
D 100% Hh : 0% hh
What advantage do sexually reproducing organisms have over asexually reproducing organisms?
A genetic variation
B genetic stability
C increased fertilization rate
D increased reproductive rate
This chart shows a list of messenger RNA codons. A strand of DNA with the sequence AAC AAG CCC undergoes a mutation, and the first A is changed to a C. How will this mutation affect the amino acid sequence?
