Answer:
While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. The exchange of carbon dioxide and oxygen during photosynthesis (Figure below) and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at stable levels.
I don't think any compounds are made of protiens but they do contain them. Enzymes are protiens that catalize reactions, the liver contain many protiens, amylase is another that is in saliva.
Answer:
The testes are male reproductive glands that produce sperm and release hormone testosterone. Testosterone is the hormone responsible for development of secondary sexual characteristics. It is responsible for the growth of chest hair, deepening of the voice and muscle growth.
Streak isn't a category for the luster of the minerals.
<h3><u>Explanation</u>:</h3>
Luster is the property of a metal which marks the shiny and bright property of the metals. The elements are divided into two categories based on their shining property.
One class is very shiny and light can undergo direct reflection from its surface. They are the lustrous substances, mostly metals. They are said to have metallic luster.
The other group has the gross, greasy, waxy, pearly appearance which dont have any shiny property. They are said to have non metallic or submetallic luster.
