Intro To Marine Science

Question 1

What is marine biology

Answer 1

Study of life in the sea, including estuaries at river mouths
Organism behavior and habitat, etc
Ocean ecosystem - coral reefs
Global perspective- whole oceans

Question 2

Marine biologists

Answer 2

Study the living organisms of the ocean

Question 3

Oceanographers

Answer 3

Study the non-living aspects of the ocean
Geological chemical and physical branches

Question 4

Why study Marine biology?

Answer 4

-Life in earth originated from the sea. It can teach us about life
- many products come form the sea: medicine, food, recreation and tourism
- marine organism produces about half the oxygen we breath
- Dangerous organism harm humans and erosion of human structures
The ocean help regulate climate. Water is slow to change in temperature, keeping coastal masses more stable Year-round

Question 5

What is sonar? (Tools in marine science)

Answer 5

Produces sound waves to determine depth. Used to map sea floor depths and formations.

Question 6

What is SCUBA?

Answer 6

(Self- Contained Underwater breathing apparatus) first used by Jacques Cousteau and Emile Gagnan.
- Study marine environment for longer periods and at depths otherwise unavailable to humans

Question 7

Ship “pinging”

Answer 7

Measures time for echo to return to calcule water depth

Question 8

Research vessels

Answer 8

These floating laboratories allow oceanographers and marine biologists to explore the marine environments for weeks, or even years without returning to a land-base facility.

Question 9

Remotely operated vehicles (ROVS)

Answer 9

Allows for direct exploration of the marine environment when scuba is not an option .

Question 10

Remote sensing

Answer 10

Satellite are used to study large expanses of the ocean surface.

Question 11

Scientific method

Answer 11

Set of procedures scientists use to learn about all science

Question 12

Observe (scientific method)

Answer 12

-observe nature to gain scientific knowledge
Induction: observation are used to reach general conclusions
Deduction: is reasoning from general principles to predict specific conclusion

Question 13

Hypothesis

Answer 13

A testable statement constructed from observations and reasoning
Cannot be proven to be true, instead it is accepted as long as it is supported by available evidence

Question 14

Variables

Answer 14

Are factors that might affect observations

Question 15

Control

Answer 15

A variable the must be kept constant
Prevents the variable from affecting the experiment

Question 16

Scientific theory

Answer 16

A hypothesis that has been tested repetitively over time by many people and has not been disproven.