Marine Science Yr 11 Unit 2 Revision Quiz

What does SDI (Simpson’s Diversity Index) measure?

• Only species richness

• Only species evenness

• Both species richness and evenness

• The number of individuals in a population

Which of the following is an abiotic factor?

• Coral

• Temperature

• Fish

• Algae

What type of symbiotic relationship is between a whale shark and a remora?

• Mutualism

• Commensalism

• Predation

• Migration

What does the acronym CARE stand for in marine protected areas?

• Clean, Accessible, Regulated, Effective

• Connection, Adequate, Representative, Efficient

• Conservation, Action, Regulation, Ecology

• Community, Access, Research, Environment

Which of the following is a biotic factor?

• Salinity

• Light

• Fish

• Temperature

What is the impact of removing a keystone species from a marine ecosystem?

• No impact

• Increased biodiversity

• Collapse or major change in ecosystem structure

• Decrease in abiotic factors

Which of the following is a physiological adaptation in marine organisms?

• Migration

• Salt excretion in mangroves

• Camouflage

• Schooling behavior

What does a tolerance range refer to?

• The number of species in an area

• The range of conditions a species can survive in

• The amount of food available

• The depth a species can swim

What is the relationship between the toxic chemical, ciguatera and trophic level?

• ciguatera concentration decreases with higher trophic levels

• ciguatera concentration remains constant

• ciguatera concentration increases with higher trophic levels

• ciguatera concentration is unrelated to trophic level

Ciguatera is a toxin that increases its concentration the higher the animal is in a food chain. This is called

• Bioaccumulation

• Biomagnification