What is special about nitrogen and what is the main function in the atmosphere?

What happens to a cell if it's enzyme are no longer functional? What are some factors that can affect enzyme?

The early amphibian tiktaalik either crawled or paddled in shallow tropical streams about 380 mya, during the late devonian period. these shallow waters often became anaerobic. what selective advantage did tiktaalik have under these conditions?

A mutation occurs in an operon that prevents the transcription factor from binding to its recognition site on the DNA. In which type (s) of gene regulation would this mutation result in constitutive expression of the structural gene?

Describe Charles Darwin's observation on the Galapagos during his voyage on the HMS Beagle

What is the best way to ensure food safety at a food facility?

Name an example of another disorder that could be caused by a nutritional deficiency.

Pertumbuhan sekunder pada tumbuhan terjadi karena adanya aktivitas jaringan

How old is Newton's law

Do all caterpillars turn into butterflies?

During mitosis if a cell undergoes cell division every 15 mins, how many cells will there be after 2.5 hours?