Answer:
i belive that that would be called neurotransmitters
This is called regulating signals
there are two kinds of regulating signal first Regulating signals that tell cells to
divide can turn off or regulating signals that tell cells to stop dividing can turn
on
2nd Signals tell cells to die programmed
cell death-internal series of events).
Answer:
There are many types of challenges are faced by the scientists in 21st century. some are as given below:
Explanation:
1. Getting biodiversity. We're losing species at a disturbing rate, and we have to comprehend what the implications of that may be.
2. sustainable development. Like feasible agriculture, yet more broad sense. Discovering approaches to accommodate human needs while limiting the mischief we cause to the earth is urgent.
3. Everything about hereditary qualities. It's simply so much fun.
4. The most effective method to cut across political, social, and social limits and spur enormous and little scope activity to lessen biodiversity loss. This point may have a hefty sociology component, yet it's significant. All the natural and biological information on the planet won't make any difference on the off chance that we can't get individuals to follow up on it.
Scientific observations are important as all scientific experiments begin with observations hence option 2 is the correct option.
<h3>Why are scientific observations important?</h3>
Scientific observations are used by scientists to collect and record data, which allows them to put forth and test certain hypotheses and theories.
Scientific observations are done in many ways – by human senses or with machines and tools like microscopes, digital scanners or amplifiers to enhance their vision or hearing.
Observations make what scientists call data and they inspire, support or deny a scientific theory or hypothesis.
Hence, Scientific observations are important as all scientific experiments begin with observations hence option 2 is the correct option.
Refer the following link to know more about scientific observations.
brainly.com/question/27131879
#SPJ1
Answer:
one is a fish and the other is a bug
Explanation: