Each element is made of only one kind of atom
The Answer is B. gametes ® zygote ® embryo ® fetus ® organism
Answer: Chemosynthesis
Explanation:hemosynthesis A type of autotrophic nutrition in which organisms (called chemoautotrophs) synthesize organic materials using energy derived from the oxidation of inorganic chemicals, rather than from sunlight.
Answer;
-Distal end
Explanation;
-The part of the esophagus that is farthest from its beginning at the throat is the distal end.
-The esophagus is a muscular tube connecting the throat with the stomach. It is about 8 inches long, and is lined by moist pink tissue called mucosa.
-Both ends of the esophagus are closed off by muscular constrictions known as sphincters; at the anterior, or upper, end is the upper esophageal sphincter, and at the distal, or lower, end is the lower esophageal sphincter.
