16. 1) Which of these is not needed by living organisms? A. space
B. gravity
C. air
D. water
E. energy

A. Space

Explanation:

You need gravity to stay on the planet and not drift off.

You need air to keep you alive.

You need water to keep you alive.

You need energy to do things like walk around, use your brain, etc.

Space

Explanation:

Living organisms need air, water, energy. Gravity is technically also needed since all living organisms on earth are accustomed to it.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.