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3 years ago

How is an atom different from an element?

2 answers:

4 0

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one electron.

Here you go! (°▽°)

Vanyuwa [196]3 years ago

3 0

Answer:

Atoms make up elements, and elements make other stuff

Explanation:

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Help thank you please

Aleksandr-060686 [28]

Answer:

It's C

Explanation:

4 0

3 years ago

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How are digitized signals sent?

Bezzdna [24]

Answer:

Digital and analog signals are transmitted through electromagnetic waves. Changes in frequency and amplitude create the music you listen to or images that you see on a screen. Analog signals are composed of continuous waves that can have any values for frequency and amplitude.

7 0

2 years ago

Pls pls pls help. I will give BRAINIEST

erma4kov [3.2K]

Answer:

Ametrine containing amethyst and citrine, from Bolivia

Abelsonite

Abenakiite-(Ce)

Abernathyite

Abhurite

Abramovite

Althausite

Althupite

Altisite

Alum-(K)

Aluminite

Aluminium

Alunite

Alunogen

Amakinite

Amarantite

Amblygonite

Ameghinite

Amesite

Amicite

Amphibole (mineral group)

Analcime (analcite)

Anandite

Anapaite

Anatase

Ancylite (mineral group)

Andalusite

Andersonite

Andesine

Andorite (IV/VI)

Andradite

Andyrobertsite

Anglesite

Anhydrite

Ankerite

Annabergite

Annite

Anorthite

Anorthoclase

Antarcticite

Anthonyite

Anthophyllite

Antigorite

Antimony

Antitaenite

Antlerite

Apachite

Apatite (mineral group)

Aphthitalite

Apophyllite

Aragonite

Arcanite

Archerite

Arctite

Arcubisite

Ardaite

Arfvedsonite

Argentite

Argutite

Argyrodite

Armalcolite

Arsenic

Arseniosiderite

Arsenoclasite

Arsenolite

Arsenopyrite

Arthurite

Artinite

Artroeite

Ashburtonite

Ashoverite

Asisite

Astrophyllite

Atacamite

Athabascaite

Atheneite

Aubertite

Augelite

Augite

Aurichalcite

Auricupride

Aurostibite

Austinite

Autunite

Avicennite

Avogadrite

Awaruite

Axinite (mineral group)

Azurite

Varieties that are not valid species:

Adamantine spar (variety of corundum)

Agate (variety of chalcedony and quartz)

Alabaster (variety of gypsum)

Alexandrite (variety of chrysoberyl)

Allingite (synonym of amber)

Alum

Amazonite (variety of microcline)

Amethyst (purple variety of quartz)

Ametrine (variety of quartz)

Ammolite (organic; also a gemstone)

Amosite (asbestiform grunerite)

Antozonite (variety of fluorite)

Anyolite (metamorphic rock - zoisite, ruby, and hornblende)

Aquamarine (light blue variety of beryl)

Argentite (high temperature form of acanthite)

Asbestos (fibrous serpentine- or amphibole minerals)

Auerlite (variety of thorite)

Avalite (chromian variety of illite)

Aventurine (variety of quartz)

3 0

3 years ago

The resource competition model of sympatric speciation requires:

Alexxandr [17]

Answer:

option a or b i think

Explanation:

4 0

2 years ago

In which direction does the replication fork move as dna replication occurs?

attashe74 [19]

DNA replication occurs in the 5 prime (5') to 3 prime (3') direction.
I'm sure you've heard this many times. I tutor in genetics, and all of my students can rattle that off. Less understand what it means.

First, understanding what 5' and 3' mean is important. DNA is composed of a ribose sugar, a phosphate group, and a base (A,T,G,C). The sugar has a phosphate group attached to its fifth carbon, and a hydroxyl group on its 3rd carbon. Nucleotides (separate components of DNA) are linked by the phosphate group and the hydroxyl group. So, every nucleotide is linked at the phosphate group and the hydroxyl group besides two - the two nucleotides at either end of the strand of DNA. The one that leaves a phosphate group exposed is called the 5' end of DNA, and the one that leaves a hydroxyl group exposed is called the 3' end of DNA.

<span>A problem with many students just memorizing that replication occurs in the 5' to 3' direction is that there are two strands of DNA involved in replication. DNA polymerase (the major enzyme responsible for replication) reads the already existing strand of DNA in the 3' to 5' direction, and creates the new strand of DNA in the 5' to 3' direction (meaning that it adds nucleotides to the 3' end of the new strand).</span>

7 0

3 years ago

Read 2 more answers