✯Hello✯☆(❁‿❁)☆
↪<u><em> Subsistence FARMING</em></u>
↪ This is when a farmer doesn't have enough money to survive and buy food
↪ They have to grow crops to eat and make a living for themselves
↪ HOPE THIS HELPS
★ВУёヽ(‘∀`○)ﾉВУё☆
❤Gianna❤
Plants and some types of archaea or bacteria use photosynthesis to create food.
<span>It is called perception, proprioception, or cognition.
I hope this helps!</span>
Answer:
False. The driving for is the partial pressure gradient of O2 (PO2 difference), not the PCO2 gradient.
However, keep in mind that an increase in PCO2 can facilitate the unbinding of oxygen from hemoglobin. This is due to a decrease in pH associated with PCO2 increase. The H+ ions bind to hemoglobin and decrease it's affinity for oxygen, this is called the bohr effect. But the PCO2 is not the main driving force of oxygen unbinding.
Answer:
Letter A. G-protein coupled receptor
Explanation:
G protein-coupled receptors are a large protein family of transmembrane receptors that pick up extracellular signals and activate signal transduction pathways within the cell. They start this transduction through a chain of events triggered by phosphorylation.
In this question, we may be confused by the options that involve protein kinase, but we have to consider only cell surface receptors, as the request in question.
