Answer:
c. organisms are better adapted to an environment.
Explanation:
With natural selection the parent gives of a gene that is better suited for survival in an environment.
An enormous cloud of gas and dust that contracts due to gravity and forms stars is called a nebula.
Humans have approximately 24,000 genes, but fruit flies are not far behind, with approximately 14,000 genes.
Answer:
science is the method of obtaining knowledge through observation and experimentation
Explanation:
4.B.-carrying out investigation
C-observing the natural world
Answer:
<em>6</em><em> </em><em>minutes</em>
EXPLANATION:
The brain can survive for up to about six minutes after the heart stops. The reason to learn cardiopulmonary resuscitation (CPR) is that if CPR is started within six minutes of cardiac arrest, the brain may survive the lack of oxygen. After about six minutes without CPR, however, the brain begins to die.
