Answer:
hydrogen, oxygen, carbon and nitrogen
I did 4 instead :')
Explanation:
The answer is microscopic life appeared on Earth before flowering plants. This is because according to the label on the second box, microscopic life appeared 4.0 to 3.5 billion years ago, and this is way before the date 250 to 120 millions years ago indicated on the label on the sixth box the flowering plants appeared on Earth.
Answer:
Autotrophs
Explanation:
Some rare autotrophs produce food through a process called chemosynthesis, rather than through photosynthesis. Autotrophs that perform chemosynthesis do not use energy from the sun to produce food. Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen.
Answer:
proteins, because it helps in the regulatory function of the body.
C. Genes are specific sections of a chromosome. Alleles are different forms of a gene.
Hope this helps.
