Why do animal cells not need the same structures vacuoles, cell walls and chloroplas, that plant cells need?

Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. Plants don't get their sugar from eating food, so they need to make sugar from sunlight. ... Because animals get sugar from the food they eat, they do not need chloroplasts: just mitochondria.

Explanation:

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.