Answer:
The bones in the forelimbs of penguins and seals are homologous and the flippers in penguins and seals are analogous.
Explanation:
The flippers of penguins and seals are analagous because they have similar functions but they did not come from the same evolutionary origin. Their separate ancestors evolved them to cope with their respective environments. However, the bones in the forelimbs of penguins and seals are homologous because they both inherited their forelimbs from common ancestors with the same bones in their forelimbs.
A structure formed from molecules that combine to make up cells is called an atom.
Keystone predators effect their habitat by keeping the population of animals down.
Answer:
Cell theory is not a law because cell theory does not have enough support to become a law.
Explanation:
Hope this helps.
Solution: The rapid rise and fall in the membrane potential across a cell's membrane is known as action potential. The generation of the action potential is necessary for the transfer of the nerve impulses across the neurons. The nerve impulses are generated only when the cell membrane is depolarized to its threshold level. These potentials are generate din response to different stimuli. When this stimulus is long, the recovery time is increased and the action potentials are allowed to occur after the relative refractory period above the threshold. (A refractory period can be defined as the time during which no action potential can be generated.)
This causes the generation of the multiple action potentials.
