The external cell membrane. Even organisms as simple as bacteria have a cell membrane.
Prokaryotes do not have internal membranes but they still have external membranes.
Everything living thing has a cell membrane
Answer:
I think the answer would be guanine and adenine
Answer:
Explanation: The basic unit of a DNA is a Nucleotide. The nucleotide comprises of: the nitrogenous bases, a deoxyribose sugar and a phosphate group. The nitrogenous bases are the purines and pyrimidines . The include, Adenine, guanine, Thymine and cytosine
Astrology
Explanation:
A person studying the field of Astrology would not have her finds testable by others because most are descriptive and not experimental in nature.
Astrology is a pseudoscience claiming divination by the positions of the planets and sun and moon.
- It is simply the study of stars and their patterns.
- Most astrologers use positions of planetary bodies to predict future events and some topical matters.
- Astrology is not pure experimental science that can be tested using sophisticated instruments in the laboratory or in the field.
- Biology is the study of life and follows the scientific way of studying nature.
- Chemistry and physics are pure sciences that follows the scientific nature in their investigation.
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