Answer:
Some similarities between a sea slug and a spotted salamander:
1. They both reproduce in a water source. For sea slug oceans, while for Spotted salamander, mostly ponds.
2. They both lay eggs meaning they are oviparous.
Explanation:
The sea slug is an aquatic animal without a bony skeleton. Spotted salamander have a bony skeleton with a similar resemblance to that of a lizard in shape but are diffferent in color, they are amphibians
1. an atom
2. compound
3. both
4. atom
Answer:
Stretching is a sign of growing, also known as having a growth spurt. Your body stretches in order to make room for things growing, for example, how a pregnant woman's stomach stretches to make room for her unborn baby.
Explanation:
if you wouldn't mind marking as brainliest would be very helpful :)
Answer:
The answer should be C: mostly in the 20th century
Explanation:
I'm not sure if I will answer the question you asked, as I many have interpreted it incorrectly. In natural selection, there must be variance in the gene pool, the total frequency of alleles in a population. Now, one of the organisms may have a gene that somehow helps them survive from the selective force much better compared to the others. If this does happen, over time the gene pool will narrow down to become just the genes of that organism that survived better in the first place because the rest would be taken care of by the selective force. So, the alleles and trait come from the first organisms that had the advantage over the others of its species.