Did early land animals have gills as well as lungs?

What organelle is water made in

Wendy is a 17-year-old world class gymnast who suffers from female athlete triad. based on this information, she has high bone density. type 1 diabetes. abnormal menstrual cycles. chronic bronchitis.

What are the functions of xylem

Which phrases correspond to "spontaneous generation?"? 1: The medieval idea of evolution relates to this theory 2: Life was created by God spontaneously 3: Life generated itself from organic matter 4: Pasteur falsified this notion by demonstrated

15. The first known bird fossils date to which era of time? A. Permian OB. Triassic O C. Jurassic O D. Cambrian

Which important property of DNA did Friedrich Miescher discover? -It is made partly of sugar molecules. -It has a double-helix structure. -It is three-dimensional. -It is found in the nucleus of a cell.

2. What is meant by predation? What is the relationship between a predator and a prey?

Sex-linked recessive disorders are most often passed from mother to sons

Bacteria can grow on meat that has not been cooked to the proper temperature and can cause food borne illnesses. Question 1 True False i think its false

What cause the loss of wetlands