Answer:
1. G 2. B 3. D 4.F 5. C 6.E 7. A 8. H
Explanation:
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Gravity increases as mass increases.
Gravity decreases when distance decreases
In spermatogenesis,from a single spermatogonia 4 haploid sperms are produced after meiosis (100% efficiency).But in case of oogenesis,from a single oocyte only one is transformed into ovum even after meiotic division(25% efficiency)
Answer:
C. Substance B gives off OH– ions that combine with H+ ions when dissolved in water.
Explanation:
A base is a substance that interacts with water to yield excess hydroxide ions in an aqueous solution.
Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia.
Bases reacts with acids to produce salts which is substance C as described in first option.
Substance A is an acid and it gives off Hydrogen ion.
There are normally four steps to approve (or not ) a medicine:
step 1: it must be proven that this drug is not toxic
step 2: it must be proven that this drug is active on sick people
step 3: it is compared to other drugs which have the same indication
step 4: is the pharmacovigilance. The drug is monitored during all its commercialization.
During the approval of biosimilar agents, step 2 is omitted because we need to establish that there are “no clinically meaningful differences” in the efficacy and safety<span> of the biosimilar when compared to the original, which can be done in step 3.</span>