The one that is consider as not an obstacle for the sperm within the female reproductive system would be the cilia located within the Fallopian tube. Hope this answer would be the best and would be of big help then.
Answer:
D.
Explanation:
Natural selection is the way that organisms adapt through adaptations to better survive and pass on the special genes which enable the offspring to survive. Saying an organism will always mutate to survive is wrong, as natural selection implies that not all organisms survive. With natural selection, nothing is "selected", so B and C are not correct. However, mutations DO make organisms "more fit" to survive their environments, so D is the answer.
Answer:
a
Explanation:
it clear and short enough for kids
You have a 1 out of 12 chance, so 1/12
Answer:
hm...
Explanation:
This scale rates an earthquake according to how much damage it causes. This scale produces a single rating for earthquakes that reach the surface. This scale uses Roman numerals to rank the damage caused by an earthquake. This scale measures the magnitude of an earthquake based on the size of seismic waves. ithink all i got the most i cud do gl
