Collar cells of sponges function in moving water through the sponge's body
Indicate whether the statement is true or false
T
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A slime layer gives bacterial cells greater pathogenicity than a capsule.
Answer the following statement true (T) or false (F)
Evolution by natural selection, as conceived by Darwin, is based on all of the following EXCEPT
a. excess growth of populations b. limitation of resources in the environment c. Mendel's experiments with peas d. variation within populations e. some individuals have hereditary characteristics that allow them to survive and reproduce more than others
Scientific facts rely on
1.opinion. 2.prediction. 3.verifiable information. 4.critical thinking.
Which statement about variation is true?
A) All phenotypic variation is the result of genotypic variation. B) All genetic variation produces phenotypic variation. C) All nucleotide variability results in neutral variation. D) All new alleles are the result of nucleotide variability.