It's biohazard. Also if it's flammable the symbol will show a flame and if it's corrosive it'll show a image with a hand being dissolved or like a spot missing by a liquid being dropped from a tube
What holds the two strands of DNA molecules to each other. Hydrogen Bonds
Answer:
Leaf cells contain chloroplasts. Photosynthesis happens in the chloroplasts as they hold vitality from the sun. Chloroplasts contain chlorophyll, which influences leaves to seem green.
The tissues of the leaf in the middle of the epidermal cells, into which gases diffuse from the stomata, are called mesophyll. The mesophyll can be additionally separated into two layers, the palisade layer, and the springy layer, both of which are stuffed with chloroplasts, the production lines of photosynthesis.
Explanation:
~_~~_~-.
:-$
plants give off oxygen and take in carbon dioxide and animals take in oxygen and give off carbon dioxide.
Answer:
food chain- description 3
energy losses- description 5
pyramid of biomass- description 1
pyramid of numbers- description 4
energy flow- description 2
