Answer:
cell membrane
just remember this for the quiz ;)
<span>Epigenesis is the term which says that an organism develops from the fertilized egg by a succession of developmental events that leads to an adult. This theory was first published by Aristotle. It became a well established and accepted theory in the late 18th century.</span>
Answer:
The left atrium pumps blood into the lungs!
Explanation:
Answer:
Option A
Explanation:
In this case the two species of squirrels have evolved when their combined population got divided into parts and was separated as a cause of natural calamity i.e Colorado River's erosion of the Grand Canyon, thereby forced to live in two different geographies and hence evolve differently from each other. The two geographies mentioned above remain disconnected by any natural barrier thereby restricting successful mating of the two population groups of squirrels.
hence, option A is correct
Answer: Head attached with the foot.
Explanation: Class Cephalopoda are highly advanced and organized group of marine animals that have a distinctive characteristics of their head been attached to their body and they possess tentacles that is to say their head is completely merged with their foot with their arms or tentacles surrounding the head.
Their body plan includes the head, two eyes, a mantle, a siphon and a minimum of eight arms. Some examples are octopus, squid and the cuttlefish