Answer:
B
Explanation:
During cellular respiration in most animals and plants, oxygen reacts with carbon containing molecules (sugars) to provide energy to cells of the organism. the flow of energy in organisms.
Answer:
B
Explanation:
in photosynthesis CO2 is used to produce glucose NOT energy.
in cellular respiration O2 is used to produce energy NOT CO2.
in cellular respiration oxygen is used to produce energy and CO2.
Answer:
by lowering activation energy.
Explanation:
The total volume of the gas-exchanging region in the lung is called alveolar volume.
The alveolus is an air sack-like organ in the end of the respiratory airway. The alveolus is the site where gas-exchanging happens, so only air inside alveolus that will undergo actual exchange. Air in bronchus or trachea wouldn't do exchange
Answer:
Frequency of recessive allele 
Explanation:
Given -
Total Population size = 919
Number of individual with recessive genotype = 341
Frequency of recessive genotype

Frequency of recessive allele 
Hence, option C is correct