30% of the earth's surface is covered by forests.
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Correct answer: D
A pollen is where male gametes are produced and so the number of chromosomes, as we are talking about gametes, is n. This means that the grain of pollen will only have a copy of each gene, and therefore only one allele for each gene - one S, and one T or t. So, the possible combinations are ST and St.
I believe it’s circulatory system.
Scientists start with general observation and then make a hypothesis
The equation which is correct according to ohm’s law is v = ir which is denoted as option D.
<h3>What is Ohm’s law?</h3>
This states that the voltage across a conductor is directly proportional to the current flowing through it.
This is deduced as V ∝I where v is voltage and I is current.
V = IR
Read more about Ohm’s law here brainly.com/question/14296509
