Baby Phelps was born without a thymus gland. Immediate plans were made for a transplant to be performed. In the meantime, baby Phelps was placed in strict isolation. Why was this done?

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?