GB2425S1 Unit 3 Test (Period 6)

Front

What type of competition is more intense among species?

Back

Intraspecific competition is more intense as it occurs between individuals of the same species.

Front

Which element is the most abundant in the atmosphere?

Back

Nitrogen is the most abundant element in the atmosphere, making up about 78%.

Front

What is parasitism?

Back

Parasitism is a symbiotic relationship where one species benefits at the expense of another, using the host's nutrients to complete its life cycle.

Front

How do animals obtain nitrogen?

Back

Animals obtain nitrogen from organisms as amino acids.

Front

What is biomass?

Back

Biomass is the total amount of living tissue within a given trophic level.

Front

Define interspecific competition.

Back

Interspecific competition is competition between individuals of different species.

Front

What is the role of nitrogen in living organisms?

Back

Nitrogen is essential for the formation of amino acids, proteins, and nucleic acids.

Front

Explain mutualism.

Back

Mutualism is a symbiotic relationship where both species benefit from the interaction.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Front

What is the difference between nitrites and nitrates?

Back

Nitrites (NO2-) and nitrates (NO3-) are both nitrogen compounds, but nitrates are more stable and are the form most commonly absorbed by plants.