Answer:
Another type of evidence for evolution is the presence of structures in organisms that share the same basic form. For example, the bones in the appendages of a human, dog, bird, and whale all share the same overall construction ([Figure 2]). That similarity results from their origin in the appendages of a common ancestor.
Explanation:
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Answer:
The liquid nitrogen refrigerator consists of a “tank within a tank,” with insulation under vacuum between the inner and outer tanks. It should be stored in a clean, dry area, preferably on a wood stand to avoid possible corrosion from contact with wet or damp concrete.
Explanation:
B. is the correct answer. through mutation and sexual reproduction
The three ways mutations can occur are
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.
All types of matter are made up of atoms...
