Hurry
during a study session for this test, a question on the study guide is to give an example of natural selection. a classmate remarks, "i just rescued a dog that has a short tail because it was cropped off. she is about to have babies and now all their tails will be short too! " what would you say to correct your friend's misconception? question options:

overproduction of offspring leads to a struggle for survival.

only favorable adaptations have survival value.

spontaneous mutations can result in the appearance of new traits. characteristics acquired during an organism's life are not passed on through genes.

I would go with the last one because the dog was not born with a short tale. I hope this helps!

every el niño cycle is different. every year.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.