Muscles of the heart are
striated and voluntary
non-striated and voluntary
striated, unbranched and involuntary
non-striated and involuntary
non-striated and involuntary
The skeletal muscle fibre is a 'syncytium', which means it is
made up of many fibres
made up of many proteins
long and slender
swollen in the middle with tapered ends
swollen in the middle with tapered ends
The anterior portion of the sclera is called
Lens
Iris
Pupil
Ciliary body
Ciliary body
E.
Cornea
Cornea is the anterior part of sclera.
The projecting ridge in ampulla of semi-circular canals in ear is called
Succus entericus
Maccula
Otolith
Crista ampullaris
Crista ampullaris
The pars distalis region of pituitary does not produce these hormones
I. Melanocyte stimulating hormone
II. Vasopressin
III. Prolactin
IV. Growth hormone
III only
I and IV
II and IV
II and III
II and III
Function of the somatostatin is to
stimulate pituitary synthesis and release gonadotropins
inhibit the release of gonadotropins from pituitary
stimulate pituitary and promotes the secretion of growth hormone
inhibit the release of growth hormone from the pituitary
inhibit the release of growth hormone from the pituitary
Consider the following statements and choose the correct option
(A) The ovule is attached to the placenta by means of a stalk called filament
(B) The ovule fuses with the stalk in the region called hilum
(C) The two protective envelopes of ovule are called integuments
(D) The small opening in the tip of ovule is called germ pore
Of the above statements
(A) and (D) are correct
(A) and (C) are correct
(B) and (D) are correct
(B) and (C) are correct
(B) and (C) are correct
Who proved that blends of polyblend (plastic waste) and bitumen, when used to lay roads, enhanced the bitumen's water repellant properties and helped to increase road life?
Amrita Devi
Ramdeo Misra
W.H. Pearsall
Ramesh Chandra Dagan
Ramesh Chandra Dagan
Match the following.
Column I | Column II |
A. Earthworm | 1. Catabolism |
B. Bacterial and fungal enzymes | 2. Breaks down detritus into smaller particles |
C. Accumulation of dark coloured amorphous substance | 3. Detritivores |
D. Fragmentation | 4. Humus |
(A) - (3), (B) - (2), (C) - (4), (D) - (1)
(A) - (3), (B) - (l), (C) - (4), (D) - (2)
(A) - (2), (B) - (1), (C) - (4), (D) - (3),
(A) - (2), (B) - (3), (C) - (4), (D) - (1)
(A) - (2), (B) - (3), (C) - (4), (D) - (1)
The first trophic level in an ecosystem consists of
Primary producers
Primary consumers
Secondary producers
Secondary consumers
Secondary consumers