ExamVeda
Login
Home
51
Outstretched ovaries are found in
Discuss
Answer & Solution
Answer: Option D
Solution:
Outstretched ovaries are found in Radopholus, Hirschmanniella and Tylenchorhynchus.
Ovary in most of the plant parasitic nematodes is always straight and does not curve back. Such ovaries are called outstretched ovaries as in the case of Tylenchorhynchus, Radopholus and Hirschmanniella etc.
52
Honey which is used in ayurvedic medicine
Discuss
Answer & Solution
Answer: Option A
Solution:
Honey that is used in ayurvedic medicine is Triigona (melipona) iridipennis.
The Indian stingless bee or dammar bee, Tetragonula iridipennis, is a species of bee belonging to the family Apidae, subfamily Apinae.
T. iridipennis stores its honey in pots that are within a food storage zone of the nest. The food storage zone contains a honey storage pot and a pollen storage pot, but these are often intermixed.
The honey of T. iridipennis is a rich source of antioxidant flavanoids. This is because workers collect honey from medicinally important herbal plants and flowers. The quantity of honey produced is a relatively small 600 - 700 grams per year.
53
Eriophyid mite (Aceria cajani) belongs to family
Discuss
Answer & Solution
Answer: Option C
Solution:
Eriophyid mite (Aceria cajani) belongs to family Eriophyidae.
Aceria is a genus of mites belonging to the family Eriophyidae, the gall mites. These tiny animals are parasites of plants. Several species can cause blistering and galls, including erineum galls.
A few are economically significant pests, while others are useful as agents of biological pest control of invasive plants such as rush skeletonweed (Chondrilla juncea), creeping thistle (Cirsium arvense), and field bindweed (Convolvulus arvensis).
54
Which of the following pairs is not correctly matched on the term of Insect and Family?
Discuss
Answer & Solution
Answer: Option A
Solution:
A. Pectinophora gossypiella ⇔ Pyrrhocoreidae is not correctly matched.
The pink bollworm (Pectinophora gossypiella) is an insect known for being a pest in cotton farming. It belongs to Gelechiidae family.
B. Earias vittella ⇔ Nolidae
Earias vittella, an Asian "spotted bollworm", is a moth species in the family Nolidae. The species was first described by Johan Christian Fabricius in 1794. Most records are from Asia, Australia and certain Pacific islands.
C. Helicoverpa armigera ⇔ Noctuidae
Helicoverpa armigera is a species of Lepidoptera in the family Noctuidae. The larvae feed on a wide range of plants, including many important cultivated crops. It is a major pest in cotton and one of the most polyphagous and cosmopolitan pest species.
D. Bemisia tabaci ⇔ Aleyrodidare
Bemisia tabaci belongs to family Aleyrodidae and is a global pest that is responsible for economically important losses to horticultural, fibre and ornamental crops worldwide.
55
Maternal care behaviour is observed in females of
Discuss
Answer & Solution
Answer: Option C
Solution:
Maternal care behaviour is observed in females of Dermaptera.
Dermaptera species are among the few non-social insect species that show maternal care. Female species may care for their eggs, and even after they have hatched nymphs will continue to watch over offspring until their second molt.
Another distinct maternal care unique to earwigs is that the mother continuously cleans the eggs to protect them from fungi.
56
A specimen upon which an additional decription is given by a person other than the original describer is known as
Discuss
Answer & Solution
Answer: Option D
Solution:
A specimen upon which an additional decription is given by a person other than the original describer is known as Plesio type.
A specimen upon which a subsequent or additional description or figure is based; any specimen identified with a described or named species by a person other than the describer is known as Plesiotype.
57
Best nematode extraction method for all stage nematode is
Discuss
Answer & Solution
Answer: Option C
Solution:
Best nematode extraction method for all-stage nematode is Cobbs sieving and decanting method.
This method is to submerge a plant sample in water in a Petri dish and directly select the nematodes for further identification using the microscope.
This set of 5 stainless steel sieves can be used for extracting nematodes with Cobb's method: decanting and sieving. The high extraction efficiency is obtained using only this small set of sieves and little water. The set contains 5 sieves with a decreasing mesh sizes being 1000 μm, 365 μm, 180 μm, 105 μm and 45 μm.
58
The type of legs of grass hopper is
Discuss
Answer & Solution
Answer: Option D
Solution:
The type of legs of grass hopper is Saltorial type.
Saltatorial is a phrase used to describe the legs of some insects and other invertebrates that are modified for jumping. Grasshoppers and crickets have saltatorial hind legs.
The legs are much larger than the other two pairs of legs and allow these insects to jump a considerable distance.
59
In world, first field release of Bt cotton was in
Discuss
Answer & Solution
Answer: Option B
Solution:
In world, first field release of Bt cotton was in 1996.
Bt cotton is a genetically modified pest-resistant plant cotton variety, which produces an insecticide to combat bollworms.
Bt cotton was first approved for field trials in the United States in 1993 and first approved for commercial use in the United States in 1996.
Bt cotton was approved by the Chinese government in 1997. In 2002, a joint venture between Monsanto and Mahyco introduced Bt cotton to India.
60
Type of respiration found in head louse is
Discuss
Answer & Solution
Answer: Option D
Solution:
Type of respiration found in head louse is Hypopneustic.
The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans. Seven segments of the louse abdomen are visible. The first six segments each have a pair of spiracles through which the insect breathes.
The meaning Hypopneustic is having some of the respiratory spiracles lacking or nonfunctional used chiefly by larval insects.