It’s a marine/ sea sponge it is a underwater invertebrate. It is classified as animal . Also Sea sponges do not have cell walls or chloroplast typical of plants, but contain animal cells.
Another name for unicellular organisms that dominated Earth up to the Precambrian time is prokaryotes. The correct answer is D.
Warmer, colder
Convection is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.
Warmer fluid is less dense so it rises and colder fluid is more dense so it sinks.
The answer is <span>b. Swamps are deeper and have a larger proportion of surface water than marshes, and bogs have acidic groundwater.
Bogs, marshes, and swamps are types of wetlands. Swamps and marshes are mineral soil wetlands. Swamps are deeper and with a larger proportion of surface water than marshes. Usually, swamps develop from marshes that fill in. Bogs are organic soil wetlands. They are acid areas with acidic groundwater.</span>
