Answer:
Cancerous tumors are malignant, which means they can spread into, or invade, nearby tissues. In addition, as these tumors grow, some cancer cells can break off and travel to distant places in the body through the blood or the lymph system and form new tumors far from the original tumor.
No estoy seguro que decir, pero sí es difícil
Answer:
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Explanation:
The relative importance of food supply and predation as determinants of animal population density is a topic of enduring debate among ecologists. ... In the 148 experiments recorded, food supplementation had an overall positive and significant effect, increasing population densities by 1·5‐fold.
Answer:
Observations at different distances show galaxies of different ages and therefore different stages of evolution. Observations of those different galaxies helps us to learn abt galaxy evolution because observations of distant objects reveal them as they were in the past.
Explanation:
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