Organic carbon produced within an ecosystem is termed ________

Fill in the blank(s) with correct word


autochthonous

Biology & Microbiology

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A certain cell type has existed in the blood and tissue of its vertebrate host's immune system for over twenty years. One day, it recognizes a newly arrived antigen and binds to it, subsequently triggering a secondary immune response in the body

Which of the following cell types most accurately describes this cell? A) plasma cell B) thyroid cell C) memory cell D) macrophage

Biology & Microbiology

In the absence of oxygen, can cells utilize the electron transport chain?  

A.  Yes, all cells can make use of the electron transport chain in the absence of oxygen via fermentation. B.  No, oxygen is a required cofactor for the complexes in the electron transport chain. C.  Yes, in the case that a cell can use a terminal electron acceptor other than oxygen, it can make use of the electron transport chain. D.  No, oxygen is the primary electron acceptor in electron transport chains in all cell types.

Biology & Microbiology

An episome is a segment of bacterial DNA that can exist as a plasmid or be integrated into the bacterial chromosome

Indicate whether the statement is true or false

Biology & Microbiology

In which of the following oceanic regions do gyres move in a clockwise pattern?

What will be an ideal response?

Biology & Microbiology