When the two pea plants will be crossed then the plants with purple colour an tall triat= 9 , white tall plants=3, puple short plants=3, and white short plants=1
So phenotype ratio will be 9:3:3:1
Answer:
Natural selection leads to evolutionary change .
Explanation:
Evolutions is the idea that species change over time, give rise to new species, and share a common ancestor.
Natural selection causes populations to become adapted, or increasingly well-suited, to their environments over time. Natural selection depends on the environment and requires existing heritable variation in a group.
Answer:
i believe is divergent boundary
Explanation:
To reduce the risks of cross contamination when performing cpr, we should try, as far as possible, and if conditions permit, practice cpr in a clean environment of any chemical or physical waste, that the person who is performing the procedure doesn´t have any respiratory disease that can make the situation worse, having clean hands not to contaminate the patient, keep other people away so fresh air can flow freely.