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.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602