Answer:
Greek ektos meaning "outside", and derma meaning "skin".
Explanation:
The ectoderm is one of the three primary germ layers formed in early embryonic development. It is the outermost layer, and is superficial to the mesoderm (the middle layer) and endoderm (the innermost layer). ... The word ectoderm comes from the Greek ektos meaning "outside", and derma meaning "skin".
Answer:
45,030 joules
Explanation:
The specific heat capacity of granite is 0.79
Mass= 3000 g
Initial temperature= 10°C
Final temperature= 29°C
Therefore the quantity of heat can be calculated as follows
Quantity of heat= mass × specific heat capacity × (final temperature-initial temperature)
= 3,000 × 0.79 × (29-10)
= 3000 × 0.79 × 19
= 45,030 joules
Hence the quantity of heat is 45,030 joules
Answer:
Second generation H1 blockers are lipophobic (cannot cross blood brain barrier) thats why they cause less sedation than 1st generation antihistamines.
Explanation:
There are 2 generations of antihistaminic drugs.
1st generation
2nd generation
The 1st generation drugs are the lipophilic drugs which alongwith the antiinflammatory and antiallergic effects, are lipophilic , crosses the blood brain barrier producing CNS effects by CNS sedation while also acting on muscarinic receptors and increasing CNS sedation more.
While due to the sedation problem with 1st generation antihistamines ,2nd generation was made which are lipophobic drugs and cannot cross the blood brain barrier and also cannot cause CNS sedation and they also lack cholinergic effects.