Carnivorous plants evolved because which of the following nutrients is often extremely limited in their habitats?  

A.  carbon
B.  CO2
C.  O2
D.  nitrogen
E.  iron


D.  nitrogen

Carnivorous plants are found in very acidic soils such as bogs that lack nitrogen. Consuming insects and other small organisms is an adaptation that evolved to obtain nitrogen.

Biology & Microbiology

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Which of the following has the most similarity in nucleotide sequence?

A. homologous chromosomes B. non-homologous chromosomes C. sister chromatids D. complementary strands of DNA E. maternal and paternal versions of the same chromosome

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A region of prokaryotic DNA consisting of an operator, promoter, and coding sequence for several functionally related genes is called an ____

What will be an ideal response?

Biology & Microbiology

What evidence exists that some of the asteroids were geologically active in the distant past?

a. A few of the larger asteroids show similar reflectance spectra (colors) similar to achondrite stony lava-like meteorites. b. A few of the larger asteroids show similar reflectance spectra (colors) similar to carbonaceous chondrite meteorites. c. A few of the larger asteroids show similar reflectance spectra (colors) similar to Jovian planets.

Biology & Microbiology

Color blindness is an inherited disorder passed from ____________________ to child. What will be an ideal response?

Biology & Microbiology