Barry is a vegan. his diet does not include foods that contain preformed vitamin a, and he does not take any vitamin a supplements.

What characteristic of the species level of organization distinguishes two similar organisms such as ducks and geese as different species?

What is the function of the organelle labelled a

What do humans need to survive on Mars?

Which statements describe characteristics that are common to both plants and animals? Check all that apply. They have nuclei. They are autotrophs. They have cell walls. They are multicellular. They are heterotrophs.

How is a hurricane formed?

The process by which plants convert sunlight into chemical energy is cellular respiration diffusion mitosis photosynthesis

Which explanation describes an advantage of sexual reproduction? A. more offspring produced at a faster rate B. offspring that are identical to parents C. rapid growth of gametes D. genetic variation

What substance translates the genetic code?

How are young plants supported? a) the pressure of water inside the cells pressing outwards on the cell membrane b) the pressure of water inside the cells pressing outwards on the cell walls c) the pressure of water passing from the roots through

Why is meiosis split into meiosis one and two