"Cancerous tumors release a substance that causes blood vessels in the surrounding tissues to grow into the tumor to provide it with nutrients. This process is known as"

Angiogenesis

Explanation:

Angiogenesis is one of the various stages of tumor formation. This process is initiated when tumor cells begins to divide spontaneously and uncontrollably.

To also ensure their continued survival, they induce blood vessels growth by allowing the secretion of various growth factors and proteins.

The new blood vessels growth ensures the supply of required nutrients and allow for the tumour expansion.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

trachea, alveoli, lung capillaries, arteries