Answer:
El aparato circulatorio unidireccional transporta sangre a todas las partes del cuerpo. Este movimiento de la sangre dentro del cuerpo se denomina «circulación». Las arterias transportan sangre rica en oxígeno del corazón y las venas transportan sangre pobre en oxígeno al corazón.
Explanation:
Answer: Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane.
A semipermeable membrane is a membrane that allows certain substances to pass through it. The most accurate definition is the third choice, "It is a barrier with tiny openings that let some, but not all, materials pass through." hope this helps:)
The answer is D . Would you like me to explain ?
Hello!
The two statements that disprove the theory of spontaneous generation are that A) All living things are made of cells and that D) Living cells can only come from previously existing cells.
The scientist that disproved the spontaneous generation theory was Louis Pasteur, who boiled a culture broth free of microorganisms and let it stand for a long period of time. No organisms grew from the flask, but when Pasteur opened it to the environment the flask soon became full of bacteria. That proved that there were microorganisms that were responsible for the growing of living things and disproved the theory of Spontaneous generation.
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