Cell walls are rigid which gives plants their shape. Animals have only cell membranes which allows animals to be flexible as animals are moving organisms. Plants, on the other hand, are sturdy and upright and are sessile organisms. Cell walls allow plants to grow upright as high as their maximum height and to be sturdy enough to survive harsh environments.
Answer:
A, B, E
Explanation:
rRNA is ribosomal RNA
tRNA is transfer/transport RNA, and it brings amino acids to the ribosomes so they can make proteins.
mRNA is messenger RNA
Hope it helps :)
<span>The ring of muscles that guards the opening between the stomach and the duodenum is the </span>pyloric sphincter
Protista contains only unicellular organisms can either be heterotrophs or autotrophs.
I'd say the answer is C but I'm not 100% sure. If not C then maybe B
