Low silica content,thick and fluid,forms dark colored rock.
Answer:
If the inter breeding absent between the individual of different species due to some barrier or mechanism calles reproductive isolation.
Answer:
Kidneys, ureters and bladder
Answer:
a.
c.
Explanation:
Lesch Nyhan syndrome is characterized by behavioral and neurological abnormalities, and excess uric acid production in the body. It occurs in males, almost exclusively.
Changes (mutations) in the HPRT1 gene causes Lesch Nyhan syndrome and is inherited in a recessive X-linked way. Several symptoms of Lesch Nyhan syndrome are Inflammatory arthritis (gout), involuntary movements, self-injury and kidney stones.
Hence, the correct option are a. and c.
