Difference between notochord and dorsal nerve cord

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

If the dimensions of a cube-shaped cell with a length,height, and width of 1 micrometer were to double, what would be the cell's new ratio of surface area to volume? a.3 to 1 b.4 to 3 c.1 to 2 d1 to 6

People with one sickle cell allele are not likely to get malaria. what is this an example of?