Which of the following statements about animal classification is NOT true? A. An octopus is an invertebrate.

B. The five groups of vertebrates are mammals, birds, fish, bugs, and reptiles.

C. Most of the animals in the world are invertebrates.

D. Scientists created animal classification to make it easier to study and talk about animals.

What is one affect on the australian environment due to the introduction of non-native european rabbits

Conservationists to restore ecosystems. which activity will positively affect the abiotic conditions of an ecosystem?

You are studying several alleles of an e. coli helicase gene. one allele, called rsr, confers resistance to rs2014, an antibiotic that works by inhibiting helicase activity. bacteria with the rss allele are sensitive to rs2014. another allele, called ts-, produces a temperature sensitive mutation of the helicase. in bacteria with the ts- allele, helicase is inactivated at 42 °c but functions normally at 37 °c. helicase functions normally at both temperatures in bacteria with the ts allele. you obtain the following data while testing four strains of e. coli at different temperatures and doses of rs2014. each number represents the percentage of maximal dna synthesis. based on this data, assign the appropriate genotype to strains a–d in the spaces provided