BRAINLIEST Do animals have spinal cords or do they have dorsal cords please provide and explanation.

Autotrophs a.consume their food to get energy b.may use photosynthesis to gain energy c.are also called consumers d.cannot use solar energy

Moving down the ramp from 6 meters to

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above