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Katena32 [7]
3 years ago
15

PLZ HELP WITH SCIENCE WORK Don't give me a link Plz JUST ANSWER

Biology
1 answer:
Pie3 years ago
5 0

Answer:

The US elections of 1860, one year before the civil war.

Explanation:

Letter to the editor,

Dear sir,

Never before in the history of this once proud and united country have elections divided this country in two. As the Democratic Party´s disagreement over the oficial party policy on slavery very clearly shows (with a Southern Democratic candidate and a 'normal' Democratic one), the deeply felt ideological split between the Northern and the Southern States has now, although Abraham Lincoln is chosen as the President, become a fact. This means that we, the United States of America, are no longer United.

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Match the functional groups with their structures:
evablogger [386]
The true answer of your question is :

OH : HYDROXYL GROUP

NH2 : AMINO GROUP

CH3 : METHYL GROUP ( but in rather broader terms, that functional group of formula CnH2n+1 where n is an integer is called ALKYL GROUP where by substituting n by 1,2,3... we obtain methyl for n = 1, ethyl for n = 2, and propyl for n = 3 )

COOH : CARBOXYL GROUP is the correct answer since carbonyl is characterized by the presence of functional group C=O in general the formula of the compound would be
R-C=O-R’ where R and R’ are alkyl groups like methyl for example. However the carboxyl group could be thought of as a summation of carbonyl + hydroxyl ( CO + OH ) resulting thus in COOH.

I hope you’ll understand everything, anyway if not i’m always here to help. ♥️
7 0
3 years ago
↓ please help asap! ↓
geniusboy [140]
3) decrease

Without the green house effect, earth would be like a solid ball of ice and rock.
Life as we know it wouldn't exist without greenhouse gases.
The temperature would drop below 0° Fahrenheit!
3 0
3 years ago
An E. coli F(+) cell
Phantasy [73]

Answer:

The correct answer will be option- C.

Explanation:

The bacteria can transfer its genetic material through three processes: transformation, conjugation and transduction. The process of conjugation takes place through the formation of the conjugating tube formed of the pili, the membrane extensions of the bacteria.

These pili are known as fertility pili or F-pili as they transfer the F-plasmid or fertility plasmid from the F⁺ bacteria containing the F-plasmid to the F⁻ cells or the bacterial cells which lack the F-plasmid.

Thus, option- C is the correct answer.

5 0
3 years ago
What is one specific form of simple diffusion??
Anni [7]
The term simple diffusion<span> refers to a process whereby a substance passes through a membrane without the aid of an intermediary such as a integral membrane protein. The force that drives the substance from </span>one<span> side of the membrane to the other is a concentration gradient. Hope this helps.</span>
6 0
3 years ago
n the CRISPR system of bacteria, the spacer is a(n): A. bacterial gene B. bacterial enzyme C. piece of phage DNA D. inactive vir
Volgvan

Answer:

Option D

Explanation:

Bits of DNA that are interspersed among these repeated sequences are called spacers. Regarding to bacteria, the spacers are taken from viruses that previously attacked the organism. They serve as a bank of memories, which enables bacteria to recognize the viruses and fight against future attacks.

6 0
2 years ago
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