It is widely accepted that altruistic behavior has evolved for the benefits it provides the species as a group.
Answer the following statement true (T) or false (F)
False
Altruistic behavior has not evolved for the benefits it provides the species as a group; rather, the reason why may involve the reciprocation of altruistic acts or benefits for relatives.
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A light microscope with an objective lens numerical aperture of 0.65 is capable of allowing two objects 400 nm apart to be distinguished when using light with a wavelength of 420 nm.
Answer the following statement true (T) or false (F)
A student analyzes a genomic DNA sequence of 100 nucleotides in order to determine if it is part of a gene. When she translates the sequence beginning at the first nucleotide, she finds that the tenth codon is UAA. What should she do next?
A) Tell her professor that the sequence does not represent an exon. B) Tell her professor that the sequence encodes a peptide with nine amino acids. C) Translate the sequence in the other five reading frames. D) Use the genomic DNA to make a cDNA of the sequence.
Auxin concentration gradients
a. appear once germination begins. b. promote the transcription of an enzyme that breaks down cytokinin. c. allow formation of plant parts in expected patterns. d. help young cells elongate so that shoots and roots lengthen. e. are described by all of these EXCEPT "appear once germination begins."
Science can best be described as
A) a search for the ultimate truth. B) a search for evidence that proves our concepts wrong. C) proving facts. D) a complete lack of dissent amongst ideas to obtain the truth.