Which of the following features does not distinguish humans as a member of phylum chordata?
human embryos undergo indeterminate cleavage.
a spinal cord runs along an adult human’s dorsal side.
human embryos exhibit pharyngeal arches and gill slits.
the human coccyx forms from an embryonic tail.

Explain why ecosystem diversity results in species diversity in a healthy biosphere

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

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.