STD 11 - 17. Locomotion and movement — NEET STD 11 Science — Question

Internal surface of large intestine is

Delete odd one

The AIDS test is known as

Which one of the following statements are correct ?
(i) Mesothoracic wing in cockroach is also called as tegmina.
(ii) Male cockroach bear a pair of long, thread like. anal styles, which are absent in female.
(iii) In both sexes in cockroach, the 9-segment bears a pair of jointed filamentous structures called anal cerci.
(iv) In cockroach crop is present at junction of midgut and hindgut which help in removal of excretory products from haemolymph.
(v) A ring of 6-8 blind tubules called hepatic caecae is present at junction of foregut and midgut in cockroach.
(vi) In cockroach malphigian tubules is present at junction of midgut and hindgut which help in removal of excretory products from haemolymph
(vii) Blood from sinuses enter heart through ostia and is pumped posteriorly to sinuses again in cockroach.
(viii) The respiratory system consists of a network of trachea, that open through 10 pair of small holes called spiracles
(ix) Cockroach converts nitrogenous waste product into uric acid and bence is called uricotelic organism.
(x) In cockroach, 3 ganglia lie in the thorax, and 6 in the abdomen.
(xi) Both eye in cockroach consists of about 2000 hexagonal ommatidia and gives mosaic vision.
(xii) The chitinous symmetrical structure surrounding the gonopore is called phallomere/gonapophysis in cockroach
(xiii) In male cockroach, mushroom gland act as reproductive gland.
(xiv) In female cockroach, each ovary is formed of a group of eight ovarioles.
(xv) The un-fertilized eggs are encased in capsules called oothecae in cockroach.
Choose the correct option given below :-

Which of the following statements are correct according to theory of Oparin and Haldane about origin of life ?
(i) First form of life could have come from pre- existing, non-living organic molecules (e.g., RNA, protein, etc.) and that formation of life was preceded by chemical evolution.
(ii) Formation of diverse organic molecules from inorganic constituents.
(iii) Life originated in water by condensation of inorganic substance.
(iv) The conditions on earth were - high temperature, volcanic storms, reducing atmosphere containing CH₄ NH₃ etc.
(v) The past atmosphere of earth was oxidizing.
(vi) Diversity was always the same since creation and will be the same in future also.

Systemic circulation is

Mendel chose the pea plant to study genetics because of many qualities. One of them which he did not consider was

Asymmetrical means