Sound reception (hearing) in an anuran (frog) mechanism
rubab The ears of anurans (frogs) consist of a tympanum, a middle ear and an inner ear. The tympanum vibrates in response to sound waves and transmits these movements to the…
Structure of Root
sana The root is underground part of the plant. It anchors the plant in the soil. It is also used to absorb Water and minerals from the soil. .1–he root structure…
Why is the tympanic membrane important to life on land?
Hearing may initially have been important to vertebrates as a mechanism to alert them of any dangerous activity around them. It also became important in the search for food and…
TYPE 2: SACCHAROMYCES (Yeast)
abida Yea ds are common in soil and on decay fruits. Yeasts are found in ails substrates which are rich in sugary substance. Yeast has great industrial importance. They are used…
Compare a complex camera eye of invertebrate with that of a vertebrate eye.
The eyes of cephalopods (squids, such as octopuses, cuttle fishes) are often compared to those of vertebrates because both types contain a thin, transparent cornea, and a lens that focuses…
Invertebrate Sensory Receptors
Invertebrate sensory receptors are : (invertebrates sensory structures crossword) (a)baroreceptors (b) chemoreceptors (c) georeceptors (d) thermoreceptors (e) phonoreceptom (f) photoreceptors (g) proprloceptors (h) tactile receptors (i) hygroreceptom (a) Baroreceptom sense…
Phylum Kinorhyncha (kinein, motion + rhynchos snout)
saadia Phylum Kinorhyncha (kinein, motion + rhynchos snout) Kinorhynchs are small, elongate bilaterally symmetrical worms. Their size is less than 1 mm. They are found exclusively in marine environments. They live…
PHYLUM ROTIFERA (rota, wheel+fera, to bear)
PHYLUM ROTIFERA (rota, wheel ± (era, to bear) Characteristics of the phylum Rotifera are: 1. The rotifers derive their name from characteristic ciliated organ called corona. Corona is present around…
GENERAL CHARACTERISTICS OF ASCHELIMINTHES
GENERAL CHARACTERISTICS OF ASCHELIMINTHES Aschelminthes show following characters: 1. They are first invertebrates which posses body cavity. But they lack peritoneal linings and mesenteries. These structures are found in more…
What are the five basic senses Aristotle identified? What are some additional senses found in different animals?
About 2200 years ago, Aristotle identified five human senses — sight, hearing, smell, taste and touch. Zoologists have identified many more senses in animals, some of which are given below:…