One primary spermatocyte produces four spermatozoa, therefore, four primary spermatocytes will produce 16 spermatozoa.
Answer:
Plants perform photosynthesis to produce glucose.
Explanation:
Glucose is used by plants for energy and to make other substances like cellulose and starch.
Answer:
<em>The correct option is A) an increase in oxygen levels, which led to the extinction of many anaerobic organisms.</em>
Explanation:
Photosynthesis can be described as a process in which food (glucose) is produced by photosynthetic organisms by using carbon dioxide, water along with light energy from the sun. Oxygen is released as a by-product of this reaction. The process of photosynthesis initially allowed for oxygen gas to get accumulated in the air. This caused the rise of aerobic organisms who required oxygen for respiration. Before the photosynthesis organisms evolved, there was not enough oxygen gas on earth to support the life of aerobic organisms.
The correct answer is D. Flask 3 (only). This is because fish produce carbon dioxide products of cellular respiration and they do not undergo photosynthesis therefore not consuming carbon dioxide.
This is where cellular respiration is being involved.
Cellular respiration is termed as process and reaction of metabolic which takes place in organisms where biochemical energy are converted to adenosine triphosphate from nutrients where waste product is being released.
Catabolic reactions is involved in cellular respiration where large molecules are broken to small molecules so as to release energy.