In Pheretima, septa are absent between which segments?
3/4 and 9/10
4/5 and 8/9
5/6 and 7/8
7/8 and 6/7
During emergency which of the following hormone is secreted?
Aldosterone
Thyroxine
Adrenalin
Calcitonin
In cockroach, larval and nymphal characters are maintained by
ecdysone
salivary glands
parotid gland
juvenile hormone
Which of the following is a transparent tissue?
Tendon
Fibrous cartilage
Hyaline cartilage
All of these
In rabbit, end of a long bone is connected in another by
tendon
ligaments
muscle
cartilage
B.
ligaments
Ligaments consist of mainly collagen fibres and some elastic fibres. It connects end of a long bone to another.
Tendon is a very dense, strong fibrous connective tissue made of collagen fibres. It connects a skeletal muscle to a bone.
Cartilage is a solid but semi- rigid and flexible connective tissue. cartilage like the fibrous tissues, is a vascular and nutrients must diffuse into it from nearby tissues.
Muscles are composed of muscle tissue, that contracts to affects a particular movement.
Which of the following cell type is capable of giving rise to other cell types in sponges?
Thesocytes
Pinacocytes
Cnidocytes
Archaeocytes
Animals having a built in thermostat to maintain constant body temperature are known as
biothermic
poikilothermic
oligothermic
homeothermic