The earliest body fossils of plants on land are dated at mya. b. the earliest body fossils of terrestrial animals are dated at mya. c. the earliest trace fossils of terrestrial animals are dated at mya. d. the earliest fossils of fungi on land are dated at mya.

Me with biology endocrine system crossword also image left i need with hw

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture