1.
body temperature regulation is a problem in premature
infants because the (1) is not yet fully functional. cerebral
palsy involves crippling neuromuscular problems. it usually is
a result of a lack of (2)_ to the infant's brain during deliv-
ery. normal maturation of the nervous system occurs in a
(3) _direction, and fine control occurs much later than (4)
muscle control. the sympathetic nervous system becomes less
efficient as aging occurs, resulting in an inability to prevent
sudden changes in (5) when abrupt changes in position
are made. the usual cause of decreasing efficiency of the ner-
vous system as a whole is a change in intellect due to
a gradual decrease in oxygen delivery to brain cells is called
(7) death of brain neurons, which results from a sudden
cessation of oxygen delivery. is called a (8)

ur answer is e & d

explanation:

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.