K.P.C.O.F.G.S.

Zebra:

K- Animalia

P- Chordata

C- Mammalia

O- Equidae

F- Perissodactya

G- Eq

S- Caballus 

Pig:

K- Animalia

P- Chordata

C- Mammalia

O- Artiodactyla

F- Suidae

G- Sus

S- Domestica

Horse:

K- Animalia

P- Chordata

C- Mammalia

O- Perissodactyla

F- Equidae

G-Eq

S-Equidae

Cow:

K- Animalia

P- Chordata

C- Mammalia

O- Artiodactyla

F- Bovidae

G- Bus

S- Taurus

Kitten:

K- Animalia

P- Chordata

C- Mammalia

O- 

F- Felidae

G- Fells

S- F. Catus

All the animals are similar because they all share the kingdom Animalia. Also, they all share the same Phylum, Chordata. Their class is also Mammalia. The cow & pig share the same order which is Artiodactyla. All the animals have different species, genus & family. 

Question:  Why aren't the zebra & horse more similar? 

Pseudotsuga Menziesii

Answer:

The reason we see the color green in plants is due to the reflected light that gets sent to our eyes. Since plants are only reflecting green, they must absorb other colours besides green; such as the blue & red frequencies of the light.

My Question: Why are all plants green?