Answer :
Plants take in carbon dioxide from the atmosphere, water from the soil and light energy from Sun.
Photosynthesis occurs.
Oxygen and energy are produced.
There are 21% of oxygen in the atmosphere.
Answer:
Option (3).
Explanation:
Batch culture may be defined as a type of culture which are refereed as stack and operated as influx of the reactant up to the maximum level. This technique is generally used to grow the micro organisms.
The cell mass do not decrease or increases as the cell divides in the batch culture. The new batch are added during the culturing process. The cell mass remains constant in batch culture.
Thus, the correct answer is option (3).
An expiremental constant is the amount of water and sunlight, the variable is the music
Answer:
Infrasound
Explanation:
Infrasound, sometimes referred to as low frequency sound, describes sound waves with a frequency below the lower limit of audibility.
D) chromosomes exchange genetic material in step 3
Explanation: the student claims that the cell division increases genetic variation, and D) is the only one which mentions exchanging genetic material/increasing variation
