Question

what type of organism utilizes photosynthesis to produce food?
a) heterotrophs
b) sharks
c) autotrophs
d) frogs
question 13 (5 points)
if a scientist is studying the attraction of water molecules to each other, what property are they studying?
a) adhesion
b) surface tension

Explanation:

First Question (What type of organism utilizes photosynthesis to produce food?)

• Heterotrophs (A) get food by consuming others.
• Sharks (B) and Frogs (D) are heterotrophic animals.
• Autotrophs (C) make their own food via photosynthesis (e.g., plants, algae).

Second Question (If a scientist is studying the attraction of water molecules to each other, what property are they studying?)

Assuming the missing option C is "Cohesion" (standard term for water - water attraction):

• Adhesion (A) is water - other substance attraction.
• Surface tension (B) relates to water's surface due to cohesion.
• Cohesion is the attraction between water molecules themselves. If option C is not fully visible, but based on the question, the property of water molecules attracting each other is cohesion. If the original options had "Cohesion" as C, that's the answer. If the options were different, but from standard biology/chemistry, cohesion is the term for water - water attraction.

Answer:

C) Autotrophs