What did Marie Curie discover radium inside

Biology

1 answer:

pshichka [43]3 years ago

5 0

Marie and Pierre Curie successfully isolate radioactive radium salts from the mineral pitchblende in their laboratory

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Lonic compounds form between elements that<br>are metals and elements that are____

Aleks [24]

Ionic compounds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms. I hope this helps you out.

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3 years ago

Label the figure below. Word bank: leading strand, lagging strand, DNA

Natalija [7]

Answer:

DNA can replicate itself because its two strands are complementary. This means that one strand can be used as a template to make the other strand. It happens right before cell division via mitosis or meiosis so that each new daughter cell can have a complete genome.

Before replication can start, the double strands of DNA need to separate from each other. An enzyme called DNA helicase breaks the hydrogen bonds that connect the two strands, allowing them to come apart.

The point where this unzipping starts is called an origin point. Eukaryotic DNA can have more than one origin point, but prokaryotes can only have one.

The points where DNA is currently unwinding are called replication forks.

A comparison of eukaryotic and prokaryotic DNA replication

Hope this helps Have a good day

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2 years ago

How do some producers and consumers each rely on light from the sun?

Nutka1998 [239]

Producers rely on light because that is what they use to "produce" food. Consumers, however, also rely on light, because first of all they need to see, and second of all, the light fuels growth of producers, which in turn, when consumers eat the producers, promote growth of other consumers.

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2 years ago

What is the term for a preserved footprint left behind any animal

BabaBlast [244]

Preserved footprints left behind by animals are called ichnites.

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2 years ago

Which type of protist is photosynthetic and unicellular with a silica shell?

Len [333]

The answer is C .......

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2 years ago

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