Answer:
Red algae
Explanation:
Coral reefs are the structure which are one of the some most important underwater ecosystems of the world. They are characterized by the formation of roof-building corals which are basically the colonies of dead or living polyps(corals) attached together through deposition of calcium carbonate.
Red algae has an important role in the formation of coral reefs because their thread like structure traps the particles present in the sand of water which ultimately gives the algae a mechanical support for their growth as well as the formation of coral reefs.
Hope it helps!
Answer:
Option B
Explanation:
The presence of these structures in this stage may be a prediction of a common ancestor as these structures are not gills because they do not develop into gills in chicks and humans but being so similar to gill structures in fish at this stage in their embryo suggests that chicks and humans share a common ancestor with fish.
Answer:
A, B, C
Explanation:
Freshwater wetlands are defined as the lands which have natural supply of water for the whole season due to geological or ecological factors such as tidal flows, connections with groundwater or flooding rivers.
There are three main types of freshwater wetlands swamp, marsh and bog.
A Swamp are able to support tall shrubs, tress, herbs and mosses to grow . These are covered with floodd water or gently flowing water and waterlogged soils prevent woody debris to decompose completely.
Marsh is found near lake, tidal water or rivers and remain flooded periodically. Marsh are the grassy areas covered by shallow water and help to overgrown with coarse grasses, rushes and sedges.
Bog is defined as an area where moss or mots decomposes slowly and form peat . They are characterized by acidic waters, a floor covered by a thick carpet of sphagnum moss and spongy peat deposits. they are generally found in northern climates which support precipitation of water.
Hence, the correct answer is A, B, C.
These two apply.
1.) The sporophyte of seed plants is photosynthetically independent.
2.) In seed plants, dispersed spores contain a multicellular gametophyte.
Answer:
The most likely cause of Nota’s pain is shoulder dislocation/ subluxation.
Explanation:
When Laika picked Nota up by the right arm and lifts him, the shoulder was in abduction and external rotation, which favours shoulder dislocation. This was supported by the loud popping sound, guarding of right arm and pain, which is severe in nature.
