I think B. thermal energy.
When we heat up a substance, we increase the motion or vibration of the particles.
This is called the cell wall!
All of the above is the correct answer. :)
Answer: Ruminants have complex digestive system.
Explanation:
Rumen: It is a sac like structure and first region of the stomach of the cow. It is connected with the esophagus. It forms the storage of the food and convert the food in the form of ball called cud.
Reticulum: It is a honeycomb like structure. It is attached with rumen. It holds and stores the heavy and dense components of the food.
Omasum: It lined with folds of tissues. It absorbs water and nutrients form the food.
Abomasum: It is called true stomach as it operate similar to non-ruminant animals. It secretes hydrochloric acid and enzymes to break down and help in feeding food.
Answer:
There are four atoms required for having tetrahedron shape.
Explanation:
Tetrahedron shape molecule is made up of four atoms. The structure of tetrahedron shape molecule is just like pyramid. One atom is present at the top while the remaining three atoms attached to it at the bottom with bond angles of about 109.5°. So the structure of molecules only be possible if the molecule is made up of at least four atoms and have four unpaired electrons. Examples of such molecules are methane, water and ammonia.
