Many organisms that undergo chemosynthesis use ________ instead of ________ to fuel the processes that convert carbon dioxide into sugars.
a. energy; sunlight
b. hydrogen sulfide (H2S); sunlight
c. sunlight; water
d. sunlight; carbohydrates
e. sunlight; sulfuric acid
Answer:
b. hydrogen sulfide (H2S); sunlight
Explanation:
Some autotrophic organisms do not use the energy of sunlight to fix the inorganic simpler substances such as CO2 into the organic sugars. These organisms perform oxidation of chemical compounds. The energy released from the oxidation of organic or inorganic chemicals is used to fix CO2 into sugars. These organisms are called chemotrophs. Some chemotrophs such as sulfur-oxidizing bacteria use H2S as a source of energy to fix CO2.
Answer:
Yes
Explanation:
if you use the scientific method in that way then yes you can
Answer:
The options:
A) esophagus
B) stomach
C) small intestine
D) mouth
The CORRECT ANSWER IS B)
B) stomach
Explanation:
The digestive tract — often termed the gastrointestinal tract or alimentary canal — supplies the route via which foods passes through the body. In the course of this pathway, foods are digested into its constituents nutrients necessarily for absorption.
Digestion initially starts in the mouth, with enzymes in saliva dissolving carbohydrate (starch). In the course of chewing, the food is lubricated, a little bit of hear is used up, and less difficult to swallow and digest. The teeth and mouth aid conversion of each morsel of food to a bolus which flows right into the esophagus (“gullet”). In the course of chewing, taste buds stationed in the mouth gives pleasure to every mouthful — or to taste if not okay. Once the bolus is swallowed, it flows through the esophagus, it is kind of warmed and lubricated as it flows into the stomach.
Note:
The acidic condition of the STOMACH and the effect of gastric enzymes turns the bolus to CHYME, A LIQUEFIED MASS that is moved from the stomach to the small intestine.
Helicase. It unwinds and breaks the hydrogen bonds so other molecules can move on to the DNA strand and begin replication.
