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Why are there no free living protozoa in environments that are dry year round?
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Is amoeba a parasite or free-living?
Yes
What are some distinguishing characteristics of protozoa?
Protozoa are unicellular and microscopic. They can move independently. Most lack the capability for photosynthesis. Protozoa live in moist habitats. Some species of protozoa are parasitic.unicellular eukaryotics microorganismsthey move by 3 types of locomotion; pseudopods, flagella and cilia.they have variety of shapes.live as free entities or parasites.can reproduce sexually or asexually
If you observed other protozoa beside ciliates how do the nonciliates move?
When the protozoa were catagorised into 4 groups according to movement they were - Mastigophora (Flagellates) move by means of flagella.They are free living and eat by surrounging food particles with pseudopodia and engulfing them Sarcodina- (Amoeboids) move by extending pseudopdia which allow them to glide across surfaces.They are free living and engulf food in pseudopodia Sporozoa- non-motile (though may produce motile gamete stages) live as intracellular parasites Ciliophora (Ciliates) move by beating many short filaments (cilia) which cover their surface . They are free living, most have a "cytostome" (digestive groove) down which food may be directed. At the bottom of the groove the food becames engulfed in a digestive vacuole. N.B. the division of protozoa according to locomotion is no longer thought to represent the actual evolutionary relationships of the organisms
What are characteristics of archaebacteria?
Archaebacteria are unicellular prokaryotes that are the oldest living organisms on Earth. Some characteristics include survival in oxygen-free environments, being extremophiles and reproduction is asexual.
What is the adaptive advantage of a nervous system for a free living flatworm?
1. The nervous system allows a free-living flatworm to respond to stimuli in its environment. The eyespots in the nervous system can detect the presence or absence of light and the sensory cell can detect chemicals and movement in water. These adaptions are necessary to the primary environments of flatworms.
Is amoeba a parasite or free-living?
Yes
What is characters of protozoa?
Unicellular eukaryotics microorganisms.move by 3 types of locomotion; pseudopods, flagella and cilia.have variety of shapeslives as free entities or parasites (absorbs or ingest organic compounds from their environments).sexually or asexually.
What is amoeba diet?
It means that it catches food and moves about by extending fingerlike projections of protoplasm. Amebas are either free-living in damp environments or parasitic.
What are some distinguishing characteristics of protozoa?
Protozoa are unicellular and microscopic. They can move independently. Most lack the capability for photosynthesis. Protozoa live in moist habitats. Some species of protozoa are parasitic.unicellular eukaryotics microorganismsthey move by 3 types of locomotion; pseudopods, flagella and cilia.they have variety of shapes.live as free entities or parasites.can reproduce sexually or asexually
These large complex single celled organisms can cause disease like African sleeping sickness?
They are known as protozoa. They include free-living forms (amebas and paramecia) as well as parasites.
If you observed other protozoa beside ciliates how do the nonciliates move?
When the protozoa were catagorised into 4 groups according to movement they were - Mastigophora (Flagellates) move by means of flagella.They are free living and eat by surrounging food particles with pseudopodia and engulfing them Sarcodina- (Amoeboids) move by extending pseudopdia which allow them to glide across surfaces.They are free living and engulf food in pseudopodia Sporozoa- non-motile (though may produce motile gamete stages) live as intracellular parasites Ciliophora (Ciliates) move by beating many short filaments (cilia) which cover their surface . They are free living, most have a "cytostome" (digestive groove) down which food may be directed. At the bottom of the groove the food becames engulfed in a digestive vacuole. N.B. the division of protozoa according to locomotion is no longer thought to represent the actual evolutionary relationships of the organisms
What are characteristics of archaebacteria?
Archaebacteria are unicellular prokaryotes that are the oldest living organisms on Earth. Some characteristics include survival in oxygen-free environments, being extremophiles and reproduction is asexual.
What is the adaptive advantage of a nervous system to a free-living flatworm?
1. The nervous system allows a free-living flatworm to respond to stimuli in its environment. The eyespots in the nervous system can detect the presence or absence of light and the sensory cell can detect chemicals and movement in water. These adaptions are necessary to the primary environments of flatworms.
What is the adaptive advantage of a nervous system for a free living flatworm?
1. The nervous system allows a free-living flatworm to respond to stimuli in its environment. The eyespots in the nervous system can detect the presence or absence of light and the sensory cell can detect chemicals and movement in water. These adaptions are necessary to the primary environments of flatworms.
Archaebacteria that live in oxygen-free environments include?
Methanogens, which are a type of archaebacteria, thrive in oxygen-free environments such as wetlands, swamps, and the digestive tracts of animals. They produce methane gas as a byproduct of their metabolic processes. Another example is halophiles, which live in extremely salty environments like salt flats and salt mines.
Why is plankton a protist?
Yes, Protozoa require moist environment; most species live world wide in ponds, lakes, streams, and oceans, where they are critical members of the plankton- free living, drifting organism that form the basis of aquatic food chains.
Is kelp a parasite or free living?
Free living.
