Biology Quiz

What are primary producers also known as?

• Heterotrophs

• Decomposers

• Autotrophs

• Consumers

Answer explanation

Primary producers are also known as autotrophs because they produce their own food through photosynthesis or chemosynthesis, unlike heterotrophs, decomposers, and consumers that rely on other organisms for energy.

What is logistic growth?

• Growth that increases rapidly without limit

• Growth that decreases over time

• Growth that increases rapidly and then stabilizes

• Growth that remains constant

Answer explanation

Logistic growth describes a population that grows rapidly at first when resources are abundant, but then stabilizes as it reaches the carrying capacity of the environment, making 'Growth that increases rapidly and then stabilizes' the correct choice.

What are the three types of survivorship curves?

• Type I, Type II, Type III

• Type A, Type B, Type C

• Type X, Type Y, Type Z

• Type Alpha, Type Beta, Type Gamma

Answer explanation

The three types of survivorship curves are Type I, Type II, and Type III. Type I represents high survival rates in early life, Type II indicates a constant mortality rate, and Type III shows high mortality in early life stages.

Tags

NGSS.HS-LS2-2

NGSS.HS-LS4-5

What is the difference between a generalist and a specialist?

• Generalists are more adaptable; specialists thrive in specific conditions

• Generalists are less adaptable; specialists thrive in any condition

• Generalists are more adaptable; specialists thrive in any condition

• Generalists thrive in specific conditions; specialists are more adaptable

Answer explanation

Generalists possess a broad range of skills, making them adaptable to various situations. In contrast, specialists focus on specific areas, excelling in particular conditions but may struggle outside their expertise.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

What is convergent evolution?

• Evolution of similar traits in unrelated species

• Evolution of different traits in related species

• Evolution of similar traits in related species

• Evolution of different traits in unrelated species

Answer explanation

Convergent evolution refers to the process where unrelated species evolve similar traits due to adapting to similar environments or ecological niches, making 'Evolution of similar traits in unrelated species' the correct choice.

What are the three subatomic particles that make up atoms?

• Protons, Neutrons, Electrons

• Protons, Neutrons, Photons

• Protons, Electrons, Quarks

• Neutrons, Electrons, Photons

Answer explanation

Atoms are made up of three main subatomic particles: protons, which are positively charged; neutrons, which have no charge; and electrons, which are negatively charged. Therefore, the correct answer is Protons, Neutrons, Electrons.

What is adaptive radiation?

• The spread of species into new environments

• The extinction of species

• The mutation of species

• The migration of species

Answer explanation

Adaptive radiation refers to the spread of species into new environments, allowing them to evolve and diversify to exploit different ecological niches.

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

What is an ionic bond? Can you illustrate an example?

• A bond formed by the transfer of electrons; Sodium chloride

• A bond formed by sharing electrons; Water

• A bond formed by hydrogen atoms; Ammonia

• A bond formed by van der Waals forces; Methane

Answer explanation

An ionic bond is formed by the transfer of electrons from one atom to another. In sodium chloride (NaCl), sodium donates an electron to chlorine, resulting in oppositely charged ions that attract each other.

Tags

NGSS.HS-PS1-2

Can you describe the very brief interactions called Van der Waals Forces?

• Weak attractions between molecules; Geckos climbing walls

• Strong ionic bonds; Salt crystals

• Covalent bonds; Water molecules

• Hydrogen bonds; DNA strands

Answer explanation

Van der Waals Forces are weak attractions between molecules, crucial for interactions like geckos climbing walls. They differ from stronger bonds like ionic or covalent bonds, making the first choice the correct answer.

What are some characteristics of water, and can you give examples why they are so important for life/nature?

• Cohesion and high specific heat; Regulates temperature

• Low density and high viscosity; Supports marine life

• High density and low specific heat; Causes erosion

• Low cohesion and low specific heat; Affects climate

Answer explanation

Cohesion allows water molecules to stick together, which is vital for transporting nutrients in plants. High specific heat helps regulate temperature, maintaining stable environments for ecosystems, crucial for life.

Tags

NGSS.HS-ESS2-5