Lactic acid build up in muscles is a sign that

a. aerobic respiration capacity has not been reached

b. respiration is operating effectively

c. insufficient oxygen is reaching the muscles

d. the muscles will be able to operate continuously for a long time

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

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

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )