Read the following statements that describe the action of steroid hormones. what is the correct order in which they occur? 1) the hormone passes across the cell membrane into the cell. 2) mrna moves into the cytoplasm and directs protein synthesis. 3) the hormone-receptor complex enters the nucleus and binds to regions of dna. 4) the hormone binds to a receptor and forms a hormone-receptor complex 5) specific genes are transcribed to mrna.

a. 1,2,4,5,3
b. 2,1,4,5,3
c. 1,4,3,5,2
d. 2,5,3,1,4
give good explanation

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards. the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above