What causes leaves to appear green to us?

What will be an ideal response?


Chlorophylls a and b and the carotenoids largely absorb violet, indigo, blue, and red wavelengths and reflect green wavelengths.

Biology & Microbiology

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A cross is performed between parents with genotypes aaBbCc and aaBbcc. What is the probability that the offspring

will have the same genotype as the first parent? Assume that capital letters indicate dominant alleles and lower case letters indicate recessive alleles.

a. 1/8 b. 1/4 c. 3/8 d. 3/16 e. 9/16

Biology & Microbiology

Directional selection favors ____

a. intermediate phenotypes b. phenotypes at one end of the distribution c. phenotypic extremes at both ends

d. heterozygous individuals e. homozygous individuals

Biology & Microbiology

Places that are home to species found nowhere else and are under great threat of destruction are called:

a. hot spots b. endemic c. threatened d. endangered e. exotic

Biology & Microbiology

Which of the following is NOT a reason that an animal's gut is a favorable habitat for mutualistic microorganisms?

a. Constant temperature b. Ready supply of nutrients c. Inhospitable conditions for many micro-competitors d. Easy access to bloodstream

Biology & Microbiology