Answer:
The correct answer is d the positive feed back reduces change in the the system
Explanation:
In an biochemical reaction when the released product stimulate the release and activation of the same product and act together to exibit their biological function, then this type of regulation is called positive feedback.
The positive feed back mechanism leads to increased change in the system that"s why it is named so.
For example during blood clotting platelets molecules are released to form clots to stop bleeding. one activated platelet can stimulates the activity of other platelets which then join together to form a group for generating further blood clots.
This is Russia we're talking about, so there are bound to be a few minor extremes between seasonal temperatures.
Winters last fron November to March and are usually very cold. Temperatures often drop below freezing.
Summers are from May to August and are usually at a comfortable 70-80 degree range. Heatwaves can raise temperatures up to above 86 degrees.
Answer:
Archaic Homo sapiens
Explanation:
The evolution of modern species is studied through the fossils found in various parts of the world.
The <em>Homo erectus </em>is the first hominin species which possessed human-like characteristics like bipedalism and they appeared about 2 mya. The first evidence of <em>Homo sapiens</em> fossil belonged to about 1,60000 years ago.
In between them, scientists found some fossils which possess characteristics of both Homo erectus and Homo sapiens, therefore, these fossils were called archaic Homo sapiens. These fossils dated about 300000 years ago.
Thus, Archaic Homo sapiens is correct.
The answer would be, record data . This step is crucial to an experiment because you would be able to see the results.
For number 3: helps the body digest food.
good bacteria can help treat some bacterial infections.
without bacteria you wouldn't exist.
bacteria produces vitamin k.
