Answer:
Sample 4.
Explanation:
Oxygen is very important for life, so this should be present.
The Algae. Unless you want to get into the microorganisms that contribute to the algae's growth.
Answer:
True!
Explanation:
Changes in gene expression can be induced by external factors like environment (diet, smoking), internal signals such as stress (hypoxia, nutrient deprivation), inflammation and tissue repair, and even genetic material such as non-coding RNAs. Genetic factors affecting gene expression
Answer:
A theory. Theories explain a phenomnon while laws state a phenomenon but do not explain them. Ex: Theory of evolution by Darwin explains how evolution works, while the law of thermodynamics states what occurs, but offers no interpreation of its meaning.
Explanation:
