|
dosits.org
Website: | https://dosits.org/ | Upvotes received | 8 |
Downvotes received | 19 |
Karma: | -12 (upvotes-downvotes) |
|
0 earned Badges No badges were found
Definitions (621)
1 |
1
2
echolocation
a process for locating distant or hard-to-see objects using the reflection of sound waves. The distance of objects or depth of the seafloor can be determined by measuring the time it takes for reflected sound waves (echoes) to return to the sound source. Some whales and dolphins use echolocation to identify underwater objects and to help find food.
Meaning awaits approval from a moderator |
2 |
1
2
exoskeleton
A hard outer structure, such as the carapace of a lobster or crab, that provides protection or support for an organism (especially invertebrates).
Meaning awaits approval from a moderator |
3 |
1
2
plankton
relatively small organisms that drift or float passively in the water and are carried wherever currents and tides take them. Plankton are often microscopic and are an important food source for other aquatic organisms. There are two types of plankton- phytoplankton (plants and autotrophs) and zooplankton (animals).
Meaning awaits approval from a moderator |
4 |
1
2
pneumatic
containing or operated by air or gas under pressure.
Meaning awaits approval from a moderator |
5 |
1
0
sprat
Sprattus sprattus
Meaning awaits approval from a moderator |
6 |
1
3
towfish
an instrument, such as a side scan sonar, that is towed behind a ship
Meaning awaits approval from a moderator |
7 |
1
2
vertical migration
a pattern of movement that some marine organisms undertake each day. Usually organisms move to shallow waters at night and return to deeper waters during the day.
Meaning awaits approval from a moderator |
8 |
1
2
vital rates
relative frequencies of vital occurrences that affect changes in the size and composition of a population, such as birth rate or death rate
Meaning awaits approval from a moderator |
9 |
0
1
a-weighting
the most commonly used frequency weighting function for humans that accounts for the fact that human hearing is less sensitive to low frequencies; units dB(A) or dBA.
Meaning awaits approval from a moderator |
10 |
0
1
absorption
the conversion of acoustic energy to heat energy
Meaning awaits approval from a moderator |
To view all 621 definitions, please sign in.