2.
3.
+
Lichens are formed by the association of:
a) Bacteria and fungi
b) Fungi and fungi
c) Bacteria and plant
d) Fungi and algae
Give any two examples of leguminous plants?
Which among the following organisms is of great significance to farmers?
a) Rhizopus
b) Rhizobium
c) Lichens
d) Bacillus
Assertion(A) : Fertilizers and manure contain nutrients, such as nitrogen, potassium and
phosphorus.
Reason (R) : Excessive use of fertilizers leads to soil pollution.
1) Both A and R are correct and R is the correct explanation for A
2) Both A and R are correct but R is not the correct explanation for A
3) A is correct but R is incorrect
4) A is incorrect but Ris correct
5.
6.
Name the type of the association present between the plant and bacteria in below given
diagram.
nitrogent compounds
photosynthesis products
nitrogen (N)
from air
Answers
Answer:
lichen = fungi + algae
a . rhizobium
2. assertion and reasons are correct but reason is not a correct explanation of assertion
Answer:
fine .. see all the answers ....
Explanation:
lichens -: d]
examples of leguminous plants are -- alfalfa, clover, beans, peas, chickpeas, lentils, lupins, mesquite, carob, soybeans, peanuts, and tamarind.
(write any 2 of these )
great significance to farmers....b]
assertion and reason :- 2]
(Extra information as u have not given the diagram )
The relationship between legumes and Rhizobia sp. is a form of symbiosis called mutualism, where both organisms benefit from each-other - the plant gets usable nitrogen from the ammonium and the bacteria receive organic acids from the plant to use as a food source.
Sorry , I didn't understand your question ....
Nitrogen (N) is one of the most biologically important elements and can regulate leaf steady-state photosynthesis through several strategies, such as a large investment of leaf N to Rubisco and its involvement in stomatal opening.