True :) Acid cant burn its self.
Allele frequency:
Number of times an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene
Answer:
D) Jaws and paired appendages
Explanation:
Jaws provided the ability to churn and grind food, while paired appendages enabled various locomotive methods such as running, walking, hopping, etc.
Answer:
When the bladder is completely deflated, the fish has minimum volume and sinks to the ocean floor
There are 4 valence electrons