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    In terms of evolution, why might the urea cycle have evolved in organisms?

    It is believed that the urea cycle evolved to adapt to a changing environment when terrestrial life forms evolved. Arid conditions probably led to the evolution of the uric acid pathway as a means of conserving water.

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Questions & Answers

why do a dog eat it's first come
Jonathan Reply
what is meoisis
Mary
Meiosis is a biological processes that involves the division of sex cells
Musoke
what is C4 in photosynthesis
Kirubel Reply
carbon the forth
Elsabet
Carbon fourth
Malekhotla
l don't know,it may be
Elsabet
How the urine is produced?
Malekhotla
what are the cause of frog living in water to their habitable to their environment and to maintain regular life in water
Chris Reply
what is the difference between mitosis and meiosis
Agera Reply
how can a human being die by drinking too much of water
Olaleke Reply
Scientific name of a dog in canis familiarise?
Jaymez Reply
what's biology?
Jaymez
Biology is the study of living organism and their interaction with one another and their environment
Sharon
an other questions please
Elsabet
what is biosphere.
Chinyi
where are pollen grains produced pls.
Chinyi
And what are emphatic factors.
Chinyi
@Chinyi Bahiyah -pollen grains are produced in the anther of plants. the anther is one part of the male part of the plant the other being filament and they together form the stamen. hoped that helped :) !!
xjuicy_editzz
biosphere is the regions surface and atmosphere of the earth (or other planets) where living organism's exist.
Esnart
what is science?
Benedict Reply
Science is the method of acquiring skills and knowledge through experimentation and observation in the World Series
Richmond
what is ecology
Bitwell
is the study that deals with the interaction between living things and their environment
Alexander
what is the main fuction of root hair cells?
Liteboho
the main function is to uptake of water and nutrients from the rhizosphere.
Benedict
State the genius to where the dog belong.
Jaymez
Science is the study of living things and non living thing
Chris
where does meiosis occur in male plant reproductive organ
Gimai Reply
plant cell is plasmolysed as a result of the
Favour Reply
of the plant losing water
Esnart
"Head of a pin" means what?
Theresah Reply
types of genotype and types of blood group
Adebusuyi Reply
what is biology
Musa Reply
is the study of cell and structure of an organism
Atem
is the study of characteristics,life processes and phenomana of living organism
Atem
the study of living things
Jonathan
What is Monomer of protein?
Dimpho Reply
What's nutrition and types of nutrition
Jessica Reply
Why is cheetah d fastest animal
Jessica Reply
because they are capable of reaching speeds of up to 70mph
Abu
Thanks
Jessica
what is diffusion?
Chris
Diffusion is the movement of molecules from high concentration to low concentration
Malekhotla
why do cats eat there kitten
Elsabet

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Source:  OpenStax, Biology. OpenStax CNX. Feb 29, 2016 Download for free at http://cnx.org/content/col11448/1.10
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