Which statement explains the difference with the spiders living in the urban environment A. The larger webs helped the spiders absorb sunlight, and their smaller bodies helped them to increase their body heat

B. The larger webs helped the spiders to capture more food, and their smaller bodies helped them to increase their body heat.

C. The larger webs helped the spiders to absorb sunlight, and their smaller bodies helped them sustain themselves with less food

D. The larger webs helped the spiders to capture more food, and their smaller bodies helped them to sustain themselves with less food.

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Which of these parts of the membrane large moecules pass through it ?

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