Because a single celled organism is not as adapted to the tasks at hand and is not as effective as a multi-celled organism. Having a multi-celled organism, specific cells in his body can perform specific tasks which grant him a faster exeuction time of these tasks as opposed to a single-celled organism.
C would be the best choice. Protists are eukaryotes that basically aren't members of fungi, plantae, or animalia. There is ongoing debate about their taxonomy.
Answer:
Homeostasis helps animals maintain stable internal and external environments with the best conditions for it to operate. It is a dynamic process that requires constant monitoring of all systems in the body to detect changes, and mechanisms that react to those changes and restore stability.
Explanation:
There is 23 chromosomes in one gamete
I hope this helps you and remember the captain letter always goes first then the lower case