Fill in the blanks
1)A few plants which depend on other plants or animals for their nutrition are called ______________.
2) Organisms that take in nutrients from dead and decaying matter are known as _____________.
3) Organisms that live together & share shelter and nutrients have ___________ relationship.
To grow fungi need ___________ & ____________ conditions.
4) Major nutrients present in fertilizers are______________ ,_______________ & _____________.
5) The autotrophic partner in lichens is ____________ ,while heterotrophic partner is _______________ .
6) The bacterium which converts atmospheric nitrogen into soluble form is ____________.
7) Fungi secrete ____________________ on dead & decaying matter.
8) Fungi convert dead & decaying matter into__________ form & absorb nutrients from it.
Nitrogen can be 9)replenished in the soil by growing_______________ crops.
Answers
Answer:
1) heterotrophs
2) saprophytic organisms
3) mutual relationship, wet and moist conditions
4) nitrogen, phosphorous and potassium
5) blue-green algae, fungi
6) nitrogen-fixing bacteria ( rhizobium)
7) hyphae
8) organic matter
9) leguminous crops
explanation:
5) The majority of the lichens contain eukaryotic autotrophs belonging to the Chlorophyta (green algae) or to the Xanthophyta (yellow-green algae). ... Common algal partners are Trebouxia, Pseudotrebouxia, or Myrmecia. The prokaryotes belong to the Cyanobacteria, which are often called by their old name “bluegreen algae”. Lichens are made up of two or more closely interacting organisms, a fungus, and one or more partners, called photobionts. The photobiont may be an alga and/or cyanobacteria, both of which can produce simple sugars by photosynthesis. In contrast, fungi are 'heterotrophic' and require an external source of food.
7)Fungi decompose organic matter by releasing enzymes to break down the decaying material, after which they absorb the nutrients in the decaying material. Hyphae used to break down matter and absorb nutrients are also used in reproduction.
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