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
What is PAR range?
200 nm - 800 nm
400 nm - 700 nm
350 nm - 550 nm
600 nm - 100 nm
B.
400 nm - 700 nm
Photosynthetically Active Radiation (PAR) is the spectral range of solar radiation from 400 to 700 nm that photsynthetic organisms are able to use in the process of photsynthesis. It is needed for photosynthesis and plant growth. Higher PAR promotes plant growth. It is mainly reported as millimoles of light energy per square meter.
Beta diversity is diversity
in a community
between communities
in a mountain gradient
on a plain
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