Unlike animal cells, plant cells have cell walls that make them rigid. which organelle, other than the cell wall, also plays a vital role in providing rigidity to plant cells? a) nucleus b) chloroplast c) central vacuole d) endoplasmic reticulum

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.

In this picture, groups of pigment that capture light energy are located on the