Answer:I'm almost sure it's b or d hope this helped
Explanation:
Answer:
In the element (<u>n Na20)</u> the <em>2 </em>means that there are 2 oxygen atoms in the Sodium Oxide.
The answer is C Heterozygous
Explanation: the inability to roll your tongue is a recessive trait. Since both parents are heterozygous, they carry that recessive gene, so their child will have a 25% chance of having that recessive trait; and therefore, unable to roll their tongue.
Answer:false
Explanation:
Phenotype refers to the actual physical and observable characteristics of a person .
C. Because there are polio outbreaks overseas
