Biology

Which nutrient is a limiting nutrient in aquatic ecosystems and, when added to aquatic environments, typically causes algal blooms?

Which biogeochemical cycle requires solar energy to move components from the earth into the atmosphere?

Which of the following biogeochemical processes has no atmospheric component?

Which biogeochemical process is most impacted by burning fossil fuels?

What percentage of solar energy striking producers is captured by photosynthesis?

At which level of complexity do different species interact with each other?

Which type of aquatic ecosystem is made up of salt-tolerant trees that are important in stabilizing tropical and subtropical coastlines?

In which of the following ecosystems is net primary productivity the highest?

At which trophic level are cheetahs located?

A symbiotic relationship between two living organisms in which one organism benefits and the other is neither harmed nor helped is known as:

What determines the function of a protein?

Which of the following statements correctly describes the difference between saturated and unsaturated fats?

There are four levels of protein structure.

Which of the following molecules is a carbohydrate?

Which type of chemical bond involves the transfer of electrons from one atom to another, resulting in oppositely charged ions that are attracted to each other?

There are several emergent properties of water that contribute its powerful affect on living organisms.

Which property of water allows it to move upward from the roots of a tree to its leaves?

Which muscles are primarily responsible for forward motion during walking on level ground (i.e. positive work)?