- Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins
- Nitrosmonas and Nitrobacter are chemoautotrophs
- Anabaena and Nostoc are capable of fixing nitrogen in free-living state also
- Root nodule forming nitrogen fixers live as aerobes under free-living conditions
Category: Biology mcqs
- Retention of well developed corpus luteum
- Fertilization of the ovum
- Maintenance of the hypertrophical endometrial lining
- Maintenance of high concentration of sex hormones in the blood streams.
- Elastin
- Collagen
- Myosin
- Albumin
- Intercalary meristem
- Intrafascicular cambium
- Interfascicular cambium
- Phellogen
- They divide in an uncontrolled manner
- They show contact inhibition
- They compete with normal cells for vital nutrients
- They do not remain confined in the area of formation.
- Iron
- Manganese
- Phosphorus
- Cadmium
- Their body is composed of both algal and fungal cells
- Some form food for reindeers in arctic regions
- Some species can be used as pollution indicators 2 cm per year
- These grow very fast at the rate of about
- Iris – Involuntary smooth muscle
- Heart wall – Involuntary unstriated muscle
- Biceps of upper arm – Smooth muscle fibres
- Abdominal wall – Smooth muscle
- Leptotene – formation of bivalents
- Diplotene – chiasmata appear
- Pachytene – chiasmata terminalization
- Zygotene – formation of bouquet
- Leptotene – formation of bivalents
- Diplotene – chiasmata appear
- Pachytene – chiasmata terminalization
- Zygotene – formation of bouquet
- Closed circulatory system
- Segmentation
- Pseudocoelom
- Ventral nerve cord
- A museum has a collection of photographs of plants and animals.
- Botanical gardens have a collection of living plants for reference.
- Herbarium has dried, pressed, and preserved plant specimens.
- Key is taxonomic aid for identification of specimens.
- Pinus
- Opuntia
- Ginkgo
- Thuja
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