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Vika [28.1K]
3 years ago
14

Why must density be calculated instead of directly measured?

Biology
1 answer:
grandymaker [24]3 years ago
3 0
Because it is derived quantity not a fundamental quantity
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¿Qué moléculas conforman las cadenas de nucleótidos?
yaroslaw [1]

Answer:

English:

RNA and DNA are polymers made up of long chains of nucleotides . A nucleotide is made up of a sugar molecule (ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).

Spanish:

El ARN y el ADN son polímeros formados por largas cadenas de nucleótidos. Un nucleótido está formado por una molécula de azúcar (ribosa en el ARN o desoxirribosa en el ADN) unido a un grupo fosfato y una base nitrogenada. Las bases utilizadas en el ADN son la adenina (A), citosina (C), guanina (G) y timina (T).

4 0
4 years ago
Global warming is melting the ice caps. What is the most likely effect on
wel

Answer:D

Explanation:

4 0
3 years ago
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What is one advantage of sexual reproduction over asexual reproduction? A. an increase in genetic variation
wariber [46]
A. An Increase In Genetic Variation 
6 0
3 years ago
what types of data would a meteorologist need to collect to demonstrate the presence of a cyclone in a specific region?
nevsk [136]

Answer:

Surface temperature and lower air pressure.

Explanation:

Surface temperature and lower air pressure are the types of data would a meteorologist need to collect in order to demonstrate the presence of a cyclone in a specific region. For the formation of cyclone, warm and moist air is required so surface temperature and lower air pressure are the data that gives information that the cyclone is present in a particular area or not.

7 0
3 years ago
Which part of the Pakicetus anatomy most suggests that it is an ancestor of whales?
Burka [1]

Answer:

Pakicetus had an ear bone with a characteristic specific to whales and a distinctive long skull shape of a whale's.

Pakicetus

• Pakicetus was a wolf-sized animal and was a carnivore that at certain occasions consumed fish had exhibited features of its anatomy that associated it to the modern cetaceans, porpoises, whales, and dolphins.

• It had the body of a land animal, however, its head exhibited the distinctive long skull similar to a whale.

• With time, the fossils also showed that Pakicetus possessed an ear bone with a characteristic specific to whales.

Thus, pakicetus can be considered as the first whale who exhibited certain similar anatomic features like that of a whale.

Find out more information about Pakicetus anatomy here:

brainly.com/question/16395727

Explanation:

8 0
3 years ago
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