1) Scientists believe that the ancient ancestors of all animals were <span>single-celled eukaryotes that sometimes grew in colonies.
</span>Eukaryotic cells have membrane-bound organelles such asmitochondria<span> and the Golgi apparatus.
</span>The best answer is :
<span>B) single-celled eukaryotes that sometimes grew in colonies</span>
Answer:
The inheritance of mitochondrial DNA (mtDNA) is matrilineal, it means that an organism inherits the mtDNA from its mother
Explanation:
The phenomenon of matrilineal inheritance has deep genetic implications since it enables the study of phylogenetic lineages of the species (or among populations within the same species) by analyzing mitochondrial inheritance.
I think the answer is probably B. All the organic molecules have carbon. Carbon can form single, double and triple bonds with itself. It can also form bonds with other elements. Hope i helped.
Hyperactivity
Decrease in school performance
Developmental and growth problem <span>
<span><span>
sleep apnea </span><span> is a sleeping disorder that is characterized </span>by pauses in breathing during sleep. The pauses
experienced during sleep apnea can last for a few seconds to a few minutes
and it usually happen many times in the night. Thus, sleep apnea disrupts
normal sleep and those affected might tiredness during the day. This
disorder causes hyperactivity, decrease in school performance and developmental
and growth problem in children.</span>
</span>
DNA is Gene structure .it was genetic material chromosome . it's chain molecular
