Explanation:
Answer:
darwin cited examples from nature based on observations he made
Explanation:
Answer:Ninjbhwhi
Explanation:
B. equifinality
C. critical period
D. zone of proximal development
Answer:
critical period
Explanation:
The neutral nature of water changes due to mixing of various salts, bases, and acids, thus changing its pH.
The neutral nature of water changes due to mixing of other neutral substances, thus changing its pH.
Answer:
Option B, The neutral nature of water changes due to mixing of various salts, bases, and acids, thus changing its pH.
Explanation:
Water obtained from natural sources like underground water, sea water, rain water etc are not neutral in nature. This is so because water extracted from all these sources contains several dissolved salts/chemical components which either reduces or increases their pH.
The ground water contains lot of dissolved carbonates and bicarbonates (as it remains in contact of rocks beneath the earth) due which it becomes extremely hard and has a pH greater than 7. On the other hand rain and snow water are acidic in nature and have a pH between 5 to 6.
Thus, it is only due to the dissolved bases and acids in natural water which makes it either acidic or basic in nature.
Symbiotic relationship /Interaction
In a symbiotic relationship, two organisms live in close association and at least one of them is benefited out if this association.
There are basically three types of symbiotic relationships –
a) Mutualistic Relationship – In this both the organisms living in association get benefited.
b) Commensalism Relationship – In this association, one organism is benefited while the other is neither benefited nor harmed
c) Parasitic Relationship – In this association, one organism is benefited while the other one is harmed.
Answer:
Symbiotic
Explanation: