Which of the following best describes an irregular galaxy? a group of stars that serve as a quick reference to different parts of the sky several billion stars arranged in a shape that has uneven edges billions of planets arranged in an irregular pattern with a flattened core millions of stars arranged in the shape of a disk with spiraling arms

just finished the exam i know it is NOT C :  Billions of planets arranged in an irregular pattern with a flattened core

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

the volume increases