Answer:
D. Psychrophile
Explanation:
A psychrophile refers to the microorganism that can grow well at 0°C. These microbes have an optimum growth temperature of 15°C or lower. They can tolerate a temperature maximum of around 20°C but show inhibition of growth above that temperature. Some of the examples of psychrophile are <em>Bacillus psychrophilus, Chlamydomonas nivalis</em>. Psychrophiles are naturally found in Arctic and Antarctic habitats. According to the given information, the culture of the bacterial species was able to grow well at refrigeration and therefore, they are psychrophile.
Measuring photosynthesis via the production of oxygen. Oxygen can be measured by counting bubbles evolved from pondweed, or by using the Audus apparatus to measure the amount of gas evolved over a period of time.
Answer:
with each heartbeat,the heart pumps blood throughout our bodies,carrying oxygen to every cell,after delivering oxygen the blood returns to the heart the heart then sends the blood to the lungs to pick up more oxygen.
