Which form of reproduction is correctly matched?
Euglena transverse binary fission
Paramecium longitudinal binary fission
Amoeba multiple fission
Plasmodium binary fission
Which of the following match is correct?
Emphysema : reduction of surface area of alveoli and bronchi
Pneumonia : occupational disease with asbestos
Silicosis : inflammation of alveoli
Asthma : excessive secretion of bronchial mucus
XO-chromosomal abnormality in human beings causes
Turner's syndrome
Down's syndrome
Klinefelter's syndrome
None of these
Wings of pigeon, mosquito and bat show
divergent evolution
atavism
convergent evolution
all of these
Beta diversity is diversity
in a community
between communities
in a mountain gradient
on a plain
B.
between communities
Community and ecosystem diversity is of three types , and . -diversity (between community diversity) is a biodiversity which appears in a range of communities due to replacement of species with the change in community habitat due to presence of different microhabitats, niches and difference in environmental conditions.
Which of the following is correct match?
Disease | Pathogen |
Wilt disease | Synchytrium |
Citrus canker | Xanthomonas |
Red rot of sugarcane | Ustilago |
Powdery mildew | Fusarium |
Apomixis is
formation of seeds by fusion of gametes
formation of seeds without syngamy and meiosis
formation of seeds with syngamy but no meiosis
none of the above