How do biologists learn which organisms we're the ancestors of today's plants?

1 answer:

5 0

by classifying into categories that get smaller and smaller these are the classification steps : life , domain , kingdom , phylum , class, order , family , genus , and species every time you narrow it down the option gets smaller and smaller till there's none left except the species it self .

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You are trying to determine the volume of the balloon needed to match the density of the air in the lab. You know that if you ca

asambeis [7]

Answer is: volume of balloon is 476,85 cm³.
density of air: d(air) = -0,0043 · 18,0°C + 1,2874.
d(air) = 1,21 kg/m³ = 1,21 · 10³/ 10⁶ = 0,00121 g/cm³.
m(balloon) = 0,577 g.
d(balloon) = d(air).
d(balloon) = m(balloon) ÷ V(balloon).
V(balloon) = m(balloon) ÷ d(balloon)
V(balloon) = 0,577 g ÷ 0,00121 g/cm³.
V(balloon) = 476,85 cm³.

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3 years ago

5.20763 to three significant figures

Sergio039 [100]

Answer:

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Explanation: You can only have 3 digits, so you would round to the hundredths place

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2 years ago

What do you mean by hydrocarbons??? Good night

riadik2000 [5.3K]

Answer:

A hydrocarbon is any of a class of organic chemicals made up of only the elements carbon (C) and hydrogen (H). The carbon atoms join together to form the framework of the compound, and the hydrogen atoms attach to them in many different configurations

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2 years ago

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If I add the same amounts of ice to water, cooking oil, and corn syrup then they will lose heat at the same/different rates beca

Vilka [71]

Ice is cold and water cools down heat, cooking oil isn’t hot unless you add it to heat, corn syrup isn’t hot unless you add it to heat as well so, they’d all lose heat at the same/different rates because they are all cooled beverages/subjects.

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3 years ago

How many electrons does Br lose or gain to fill its octet?

Greeley [361]

i think it is 8. I might be wrong.

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3 years ago