It made it possible to actually see cells. Explanation: With the development and improvement of the light microscope, the theory created by Sir Robert Hooke that organisms would be made of cells was confirmed as scientist were able to actually see cells in tissues placed under the microscope
Answer:
The blood is pumped through a closed system of arteries, veins, and capillaries. ... Still, blood can flow backward and the system is only slightly more efficient than the open system of insects. The closed circulatory system has more advantages over the open circulatory system.
Explanation:
The third one is the answer.
The first one is overproduction.
The second one is competition.
The third one is survival of the fittest, because if there are six grey mice and two brown mice in a brown field, which is more likely to be eaten by a predator? The grey mice are. Their genetic material helps them to survive and therefore be fit to their environment.
I think you: Remove stones from soil, Plow soil, Dig ridges in the soil, and Plant seeds in soil
A
The trait of tusk size in elephants has changed over time