Answer:
Without naturally occurring greenhouse gases, Earth's average temperaturewould be near 0°F (or-18°C) instead of the much warmer 59°F (15°C). The concentration of greenhouse gases, especially carbon dioxide and methane, has fluctuated naturallyover geological time scales.
Answer;
B. to reduce chances of falls
Explanation;
-Senior citizens should perform balance exercises to reduce chances of falls. Balancing in senior citizens or older people is important as it helps build huge confidence, it helps them to see the world in their own terms and also better balance means there will be fewer falls.
Cladistic gram is often used by scientists in classification. the most Maximum parsimony cladogram requires the fewest evolutionary changes needed to explain the data.
- Maximum parsimony is known to be the evolutionary tree that only needs the few or the least evolutionary changes to explain data.
A phylogenetic tree and cladogram are known to be a tree structure that stands for the evolutionary relationships/history within a group of organisms
Scientists do use the following when placing an organism on a cladistic gram. They are:
- The place organisms based on common ancestry
- The ancestral species and all of its descendants
Maximum parsimony is said to be a point under which the phylogenetic tree that reduces the total number of character-state changes that is needed.
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These substances are called endorphins.