The surface of a leaf has many tiny pores, called stomata. The stomata allow carbon dioxide into the leaf so that photosynthesis can occur. They also allow water to leave the leaf by transpiration. Plants that grow in full sunlight usually have most of their stomata on the shaded undersides of their leaves.
The Ras protein found in tumors usually cause which of the following events to occur excessive cell division.
<h3>How does Ras oncogene contribute to cancer?</h3>
Ras genes codes for proteins that can drive cancer when mutated.
All Ras proteins are GTPases which work as molecular regulators in the cell, controlling signaling pathways and other interactions.
Thus, option "A" is correct.
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Answer:
Explanation:
ummm what type in a trcik?
How many places are there for electrons in the second shell of an atom? The answer is C) 8 electrons
