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Answers
1.
a. sorry this one I don't know !
b. The photosynthetic pigments contained inside the organisms are chlorophylls a and b.
2. Their endoskeleton is entirely made of bone.
They have anterior tip mouth opening.
3. Blind spot in the eye is devoid of the ability of vision due to the absence of photoreceptors cells, rods and cones.
4. The crista ampullaris is the sensory organ of rotation. They are found in the ampullae of each of the semicircular canals of the inner ear, meaning that there are 3 pairs in total. The functionof the crista ampullaris is to sense angular acceleration and deceleration.
The vestibule is a region of the innerear which contains the saccule and the utricle, each of which contain a maculato detect linear acceleration. Themacula of saccule lies in a nearly vertical position. Its function is to detect vertical linear acceleration. It is a 2 mm by 3mm patch of hair cells.
5. The lipid molecules are amphipathic molecules i.e. they contain both the hydrophilic (Polar) groups and hydrophobic (non polar) groups.
The polar heads are directed towards the outside while the non polar regions (Tails) are directed towards the inside near each other. This arrangement of lipid molecules forms the lipid bilayer.
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Here's your answer...
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1)
a)Structurally Euglena doesn't have a cell wall.
Instead it has a thick outer covering ➡Pellicle,it is composed of protein.
⭐It gives it both strength and flexibility.
b)The photosynthetic pigment found in Euglenoids is mainly chlorophyll a & b.
⭐Chlorophyll a- blue/green pigment is the main.
2)In case of bony fishes,mouth is on the terminal end of head.While in cartilaginous it is in ventral side of head.
3) Blind spot in the eye is devoid of the ability of vision due to the absence of photoreceptors cells, rods and cones
4)Crista mainly sense angular acceleration or deacceleration while macula sense vertical linear acceleration.
5)Proteins are arranged as phospholipd bilayer. each phospholipid molecule has a head and two tails. The head “loves” water (hydrophilic) and the tails “hate” water (hydrophobic).
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