I love texting the unknown
Answer:
2. 2H2O2 -> 2H2O+ O2
Explanation:
This equation is balanced because there are equal amounts of each element on each side. 4 Hydrogen on the left, 4 On the Right. 4 Oxygen on the Left, 4 on the right.
Although 1 is balanced it is not the Chemical equation for hydrogen peroxide (H2O2)
2. is not the equation for Hydrogen Peroxide
4. Balanced although this one does not show oxygen as a gas ( when oxygen is a gas it is O2)
23. centromeres
25. mitosis
27. cancer
29. sister chromatid
31. tissues
Answer:
<em>This is an example of natural selection (adaptation).</em>
Explanation:
Natural selection tends to favor those organisms which are better adapted to live in an environment.
As tortoises having flat shell and long neck were better adapted to live in barren area, hence through natural selection those organisms were favored in such an ecosystem.
As tortoises that lived on the vegetative lands were more adapted to live in such an ecosystem, hence through natural ecosystem these organisms were favored and increased in numbers.
