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zhenek [66]
3 years ago
14

I need help with numbers 3, 4, and 5. 20 POINTS

Biology
1 answer:
Dimas [21]3 years ago
5 0
A chemical reaction bonding monomers together to make a polymer
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Give an example of a species that has been introduced to the United States and tell what its effect has been
Yuliya22 [10]

Answer:

An introduced species, alien species, exotic species, adventive species, immigrant species, ... Non-native species can have various effects on the local ecosystem. ... Some species have been introduced intentionally to combat pests

Explanation:

4 0
3 years ago
Explain Mercury is the planet closest to the Sun. Why does it get so cold at night?
alexdok [17]

Answer/Explanation: On Mercury temperatures can get as hot as 430 degrees Celsius during the day and as cold as -180 degrees Celsius at night.

Mercury is the planet in our solar system that sits closest to the sun. The distance between Mercury and the sun ranges from 46 million kilometers to 69.8 million kilometers. The earth sits at a comfy 150 million kilometers. This is one reason why it gets so hot on Mercury during the day.

The other reason is that Mercury has a very thin and unstable atmosphere. At a size about a third of the earth and with a mass (what we on earth see as ‘weight’) that is 0.05 times as much as the earth, Mercury just doesn’t have the gravity to keep gases trapped around it, creating an atmosphere. Due to the high temperature, solar winds, and the low gravity (about a third of earth’s gravity), gases keep escaping the planet, quite literally just blowing away.

Atmospheres can trap heat, that’s why it can still be nice and warm at night here on earth.

Mercury’s atmosphere is too thin, unstable and close to the sun to make any notable difference in the temperature.

Space is cold. Space is very cold. So cold in fact, that it can almost reach absolute zero, the point where molecules stop moving (and they always move). In space, the coldest temperature you can get is 2.7 Kelvin, about -270 degrees Celsius.

Sunlight reflected from other planets and moons, gases that move through space, the very thin atmosphere and the surface of Mercury itself are the main reasons that temperatures on Mercury don’t get lower than about -180 °C at night.

6 0
3 years ago
What is another word for intrusive?
ivann1987 [24]
<span> B. plutonic. An intrusive igneous rock is also known as plutonic</span> and has large crystals from slow-cooling magma. Types of intrusive rocks include gabbro, granite, dunite and diorite.
6 0
3 years ago
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Why is DNA referred to as the genetic code?<br>​
Gnesinka [82]

The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.

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Conscious visual knowledge of objects (e.g., shape, size, texture) is stored in the:
son4ous [18]
Temporal cortex                                . ................. 
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