Which of these is not found in a typical cell membrane? proteins carbohydrates lipids nucleic acids

Which flexible structure that supports the nerve cord and led to the backbone

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

In a cladogram, what occurs at a node? a derived trait appears. evolution is stopped. an ancestor dies. the cladogram ends. aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%