Energy can be _______ but not __________. Chemicals ________ the biosphere but energy __________ the biosphere.

A) converted, destroyed, flow through, is recycled in
B) converted, destroyed, are recycled in, flows through
C) destroyed, converted, flow through, is recycled in
D) destroyed, converted, are recycled in, flows through


Ans: B) converted, destroyed, are recycled in, flows through

Biology & Microbiology

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Control of the lac operon and lactose utilization in bacteria is  

_____  not induced in the presence of both glucose and lactose. _____  only induced when there is glucose but not lactose. _____  is a negative control, mediated by a repressor. _____  controlled by the expression of three downstream genes. _____  preferentially utilizing lactose as a carbon source.

Biology & Microbiology

Vertebrate lungs originally evolved from ____

a. fish gills b. fish guts c. lizard gills d. lizard guts e. salamander gills

Biology & Microbiology

Major end products from photosynthesis include oxygen gas and simple, high-energy carbohydrates

Indicate whether the statement is true or false

Biology & Microbiology

Alcohol is a waste product produced by yeast in the presence of sugar and the absence of ________

A) CO2 B) H2O C) O2 D) ATP

Biology & Microbiology