Answer is B in my opinion
<span>Complete the sentence below by selecting the correct words from the drop-down menus.
There are three requirements for natural selection. The requirements are </span><span>✔ variationsimilarity</span><span>, <span>underpopulation✔ overpopulation</span><span>, and <span>✔ adaptationextinction</span><span>.</span></span></span>
This means that the fertilized egg has implanted in the fallopian tube and is growing outside of the uterus. An ectopic pregnancy occurs when the fertilized egg settles and grows in any location other than the inner lining of the uterus. Most of these cases occurs in the Fallopian tube (tubal pregnancy). If untreated ectopic pregnancy can be a medical emergency.
Inheritance is the process by which traits are passed from the parents to their offspring. The basic unit of inheritance in human is the DNA. For traits to be passed from the parent to the offspring, the DNA in the cell must be duplicated and this happens through the process of cellular reproduction.