Ecology/Ecosystem
These are areas where the water table is at or near the surface, or where the land is covered by shallow water for long enough to result in water-tolerant vegetation and altered soils.
Wetlands
These are specilalized seedlings or seed like structure that has begun to germinate while still attached to the parent tree
Propagules
A reproduction where seeds germinate and develop into seedlings (called propagules) while still attached to the parent tree.
Viviparous
A threatened species of mollusks. Give one (1)
Tridacna gigas (etc.)
It is a part or zone in an ecosystem where there is no oxygen that resulted to chemistry redution where chemicals such as methane, instead iodized chemicals such as carbon di-oxide is being formed.
Profundal zone
The reefs massive structure is formed from __________, these are tiny animals that lives in colonies; when they die they leave behind a hard, stony, branching structure made of limestone.
Coral polyps
When an organism produce sperm and oocyte simultaneously sequentially in the form of protogyny and protandry or alternating sexes, they are called_____.
Hermaprodites
Give at least 1 endangered species of echinoderms. In scientific name
Apostichopus japonicus
Holothuria whitmaei
Isostichopus fuscus
Holothuria nobilis
Holothuria scabra
________ such as nitrogen, phosphorus, and potassium are essential elements that support the growth of algae and aquatic plants in a pond. These nutrients enter the pond through natural processes like runoff, decomposition, and atmospheric deposition.
Nutrients
When conditions are bad diatoms die, sink, the cell decomposes and the frustule breakes up and mixes with sand and mud. The combination of sediments and glass frustules makes the siliceous ooze called ______________
diatomaceous earth
How many percent of mollusk larvae would settle within 24 hours after it is being hatched?
80%
In the Red List category (2002), how many marine species are Vulnerable (VU).
60%
The core issue often lies in nutrient over-enrichment, which disrupts the natural balance by promoting excessive algae and plant growth. The ________ can cascade through the food web, affecting grazers and fish populations and ultimately degrading pond health.
Imbalance
It is a natural polysaccharide found in the cell walls of brown seaweeds that provides flexibility and structural strength. It's extracted and used for its thickening, gelling, and binding properties in the food industry, as well as in pharmaceutical applications like wound dressings and antacids, and even in dental molds.
Algin
The process of the male sponge releasing thousands of sperms cells out into the sea in a thick cloud resembling smoke.
Parent sponge smoking
The scientific name of a threatened mangrove species with a local name of Gapas-gapas
Camptostemon philippinense