I have no idea you tell me !
A red eyespot is clearly visible. In fact the real light sensitive organ is the swelling near the base of the flagellum. The red area makes sure only light from one direction is detected. Since the light sensitive organ is directly connected to the flagellum, Euglena is perfectly able to swim towards a light source
The scientific name for the phylum Protozoa is Protozoa.
The protozoa are larger and easier to see. There are a lot more bacteria because after all they are what the protozoa are feeding on but they at the very limit of resolution for most light microscopes. They are also less obvious because most don't move.
Protozoa.
Yes, protozoa do have cell nucleus.
I have no idea you tell me !
A red eyespot is clearly visible. In fact the real light sensitive organ is the swelling near the base of the flagellum. The red area makes sure only light from one direction is detected. Since the light sensitive organ is directly connected to the flagellum, Euglena is perfectly able to swim towards a light source
light.
Yes. Specialized instruments called photodetectors are able to sense light.
Yes the eye-spots have photoreceptors used to avoid light.
Starfishes do not possess a well-defined sense organs. However, they have tube feet, spines and pedicellariae that are able to sense temperature, touch, light, orientation, and the water around them.
The scientific name for the phylum Protozoa is Protozoa.
Cnidarians do no possess eyes for sight, though many of them are able to sense light vs dark.
The protozoa are larger and easier to see. There are a lot more bacteria because after all they are what the protozoa are feeding on but they at the very limit of resolution for most light microscopes. They are also less obvious because most don't move.
Protozoa.
They have bilateral symmetry, many have appendages, some have sense organs, some have light sense organs have smooth bodies, able to rejoin bodies and are invertebrateslong and slimy
No living thing can "see" (or otherwise sense) gamma rays.