Can you explain a science concept with only emoji? Let us know who guesses it correctly!

Mine: https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌱" title="Seedling" aria-label="Emoji: Seedling">https://abs.twimg.com/emoji/v2/... draggable="false" alt="➕" title="Heavy plus sign" aria-label="Emoji: Heavy plus sign">https://abs.twimg.com/emoji/v2/... draggable="false" alt="🦠" title="Microbe" aria-label="Emoji: Microbe">https://abs.twimg.com/emoji/v2/... draggable="false" alt="➡️" title="Rightwards arrow" aria-label="Emoji: Rightwards arrow">https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌱" title="Seedling" aria-label="Emoji: Seedling">https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌱" title="Seedling" aria-label="Emoji: Seedling">https://abs.twimg.com/emoji/v2/... draggable="false" alt="😃" title="Smiling face with open mouth" aria-label="Emoji: Smiling face with open mouth">https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌱" title="Seedling" aria-label="Emoji: Seedling">https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌱" title="Seedling" aria-label="Emoji: Seedling">

Hint: it& #39;s my thesis research. DO YOU EVEN KNOW ME