Which characteristic do protozoans Foraminiferans (Phylum Sarcodines) and coccolithophores (Phylum Haptophyta) have in common? A. They are the same length. B. They are both parasites. C. They are both extremophiles. D. They both develop calcium carbonate structures. E. They are the same size.
Answers
Foraminifera (/fəˌræməˈnɪfərə/; Latin for "hole bearers"; informally called "forams") are members of a phylum or class of amoeboid protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell (called a "test") of diverse forms and materials. Tests of chitin (found in some simple genera, and Textularia in particular) are believed to be the most primitive type. Most foraminifera are marine, the majority of which live on or within the seafloor sediment (i.e., are benthic), while a smaller variety float in the water column at various depths (i.e., are planktonic). Fewer are known from freshwater or brackish conditions, and some very few (nonaquatic) soil species have been identified through molecular analysis of small subunit ribosomal
The characteristics common in both the species are are that they both develop calcium carbonate structures around themselves.
Option D
Explanation:
- Foraminiferans develop a layer of calcium carbonate and their usually present in the tropics.
- This type of organisms help explorers to find the the seashore.
- They have extended pairs of cilia which helps them to catch Prey but they are not at all parasitic.
- Coccolithophores is a unique type of of organism which surround itself by silica or calcium carbonate shell which gives protection to other type of organisms.
- Both of them are protozoans in nature.
To know more about protozoa,
Mention important characters of phylum Protozoa and Porifera
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