AMS FY24 Semester Exam

Front

What process increases the salinity of seawater?

Back

Freezing of glaciers increases the salinity of seawater.

Front

What type of bond is formed when atoms accept or give up electrons?

Back

Ionic bond is formed when atoms accept or give up electrons, creating charged particles.

Front

What feature of the remora helps it adhere to other organisms?

Back

The dorsal fin of the remora has been modified to help it adhere to other organisms.

Front

What elements are necessary for the production of nucleic acids?

Back

Carbon, hydrogen, oxygen, phosphorus, and nitrogen are necessary for the production of nucleic acids.

Front

What are the primary elements that make up Earth's core?

Back

The core is composed mainly of iron and nickel.

Front

What is salinity?

Back

Salinity is the measure of the amount of dissolved salts in water, typically expressed in parts per thousand (ppt).

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond that occurs when one atom transfers electrons to another atom, resulting in the formation of charged ions.

Front

What is the role of the dorsal fin in remoras?

Back

The dorsal fin in remoras is modified to function as a suction cup, allowing them to attach to larger marine animals.

Front

List the four main elements that make up most biological molecules.

Back

The four main elements are carbon, hydrogen, oxygen, and nitrogen.

Front

What is the significance of phosphorus in biological systems?

Back

Phosphorus is essential for the formation of nucleic acids and ATP, which are critical for energy transfer and genetic information.