Answer:
a option
Explanation:
Please mark me brainliest
Answer:
External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells.
Explanation:
From Google
<span>The ash trees are being cut when the show signs of
infestation of the ash borer. Ash borer in particular the Emerald Ash Borer
(EAB) is a tiny bug but can really do a great damage to the tree. When the tree
is infested with the ash borer, they lay their eggs in the bark of tree, when
the eggs hatch the lavas would start eating on the inner tissues of the tree
blocking the flow of nutrients and water in the tree that causes the tree’s to
death. If the tree is infested they cut
it down, burn and bury the wood to stop the spread of infestation. Ash trees
are valued for its strength and elasticity that is often used to make baseball
bats, bows, tool handles and other products that needs durable wood.</span>
By predicting bad weather and keeping people safe during danger
Btw, i think you meant meteorologists.
Answer:The last minor reason there are no basements in the south has to do with the frost line. For a building to maintain strength, its foundation should be below the frost line in the soil. ... There is no reason for builders in the south to build a basement because the foundation doesn't need to be very deep anyway.
