Fall Final Review

Front

Infectious disease transmission is primarily influenced by which type of factor?

Back

Density dependent factor.

Front

What does the 1st law of thermodynamics state?

Back

In a closed system of constant mass, energy is neither created nor destroyed, but is transferred from one organism to another.

Front

How do you calculate the growth rate of a population?

Back

Growth Rate = (Birth Rate - Death Rate) / 10. For Sheldonia: (136 - 107) / 10 = 2.9%.

Front

Which organism primarily feeds on producers in an aquatic ecosystem?

Back

Zooplankton.

Front

What layer of the atmosphere contains detrimental ozone (O3)?

Back

Troposphere.

Front

Define density dependent factors in ecology.

Back

Factors that affect population growth in relation to the population density, such as food availability, predation, and disease.

Front

What is the significance of the 1st law of thermodynamics in biological systems?

Back

It explains how energy flows through ecosystems and is transformed by organisms.

Front

What is the formula for calculating the crude birth rate (CBR)?

Back

CBR = (Number of live births / Total population) x 1000.

Front

What is the role of phytoplankton in aquatic ecosystems?

Back

Phytoplankton are primary producers that convert sunlight into energy through photosynthesis.

Front

Explain the concept of carrying capacity in ecology.

Back

The maximum population size that an environment can sustain indefinitely without being degraded.