Preview Questions Marine Biologist | Role Specific Skill

Question 1: What is the primary characteristic used to identify elasmobranch species such as sharks and rays?

Which action should you take?

Choose only one option

External gill slits and a flattened body shape

Number of gills and tail morphology

Presence of a cartilaginous skeleton

Possession of a caudal fin and large dorsal fin

Question 2: How can you differentiate between Seriola lalandi and Seriola dumerili?

Which action should you take?

Choose only one option

By their dorsal fin shape and color

By genetic sequencing

By their geographical distribution

By the shape of their pectoral fins

Question 3: Which method is primarily used for studying the behavioral ecology of marine mammals, such as dolphins and whales?

Which action should you take?

Choose only one option

Telemetry tracking

Genetic analysis of fecal samples

Behavioral observation and video recording

Stable isotope analysis

Question 4: In marine ecology, what is the concept of ?keystone species' and how does it influence marine ecosystems?

Which action should you take?

Choose only one option

Species whose absence causes trophic cascade effects

Species that maintain community structure despite low biomass

Species that regulate the food chain through predation

Species that have a disproportionately large impact on ecosystem dynamics

Question 5: Which marine species is a key indicator for the health of seagrass ecosystems?

Which action should you take?

Choose only one option

Manatees

Green sea turtles

Dugongs

Bottlenose dolphins

Question 6: Which of the following is an important technique for assessing benthic biodiversity in marine ecosystems?

Which action should you take?

Choose only one option

Plankton net tows

Water column profiling

Sediment sampling and core collection

Visual surveys of epifauna