A signal cascade is a series of chemical reactions which are triggered by a stimulus acting on a receptor that is then transduced to the intracellular space through second messengers. Finally, effector molecules receive the signal causing a cellular reaction to the initial stimulus. A signal cascade is very useful because it facilitates and accelerates the communication between cells that could be in different parts of a living organism. This communication is vital for cell processes in complex multicellular organisms.
Answer:
The organisms in which are able to adapt and become stronger.
Explanation:
In Darwin's theory, only the strongest and capable of adaption survive to natural challenges.
These include materials with the oldest DNA evidence of human<span> habitation in North America. The DNA, </span>radiocarbon<span> dated to 14,300 years ago, was found in fossilized </span>human coprolites<span> uncovered in the </span>Paisley Five Mile Point Caves<span> in south-central Oregon.
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Answer:
Explanation:FIRST YOU KNOW THAT ANGIOSPERMS HAVE FLOWERS NOT CONES
AND HEY CONTAING REPRODUCTIVE ORGANS IN THE FLOWER
Answer:
If bacterial spread between patients is significant, the advantages of deliberately using the restricted antibiotics can outweigh the disadvantages, and lead to fewer instances of bacteria resistant to all available drugs in the long term as well as more effective treatment in the short term
Explanation:
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