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Mila [183]
3 years ago
13

1. What is a population? Give three examples of populations.

Biology
2 answers:
artcher [175]3 years ago
8 0

Answer:

1. number of people or animals in a particular place

2. Populations can be the complete set of all similar items that exist

Explanation:

I don't really know what to put for a third one, im sorry but i hope the other two help

garri49 [273]3 years ago
3 0
Population- number of people or animals in a particular place.
Examples:
•events
•over 8M people living in NYC
•businesses
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Countercurrent multiplication involves A) ions leaving ascending limb to make water come out of the descending limb B) water lea
Snowcat [4.5K]

Answer:

The correct option is A

Countercurrent multiplication is the process whereby energy is used to generate an osmotic gradient in which water is reabsorbed from the tubular fluid to produced concentrated urine.

Explanation:

Countercurrent multiplication moves sodium chloride from tubular fluid into interstitial space deep within the kidneys. The concurrent multiplication process build up osmotic gradient interstitial fluid in a single effect. Here, sodium chloride is driven by active transport out of the tubular fluid in the thick ascending limb into the interstitial fluid, which becomes hyperosmotic. This result to water moving passively down its concentration gradient out of the tubular fluid in the descending limb into the interstitial space to a point where it attains a state of equilibrium.

Therefore,the correct option is A, where the ions leaves the ascending limb to make water comes out of descending limb.

4 0
3 years ago
We use blank as the matrix through which DNA will travel. In order to physically see the samples that we put in the gel, we firs
4vir4ik [10]

Answer:

This question is asking to fill in the blank spaces with the correct terms. The correct terms to the four blank spaces are:

1) GEL

2) DYE

3) DNA MARKER

4) LID

Explanation:

This question is describing the Gel electrophoresis technique which is used to separate DNA fragments using electric current. The DNA fragments of different sizes migrate through a GEL which serves as the matrix made from Agarose.

In order to physically see the samples that we put in the gel, we first have to add DYE to each sample of DNA. After loading the samples to be separated, a substance made up of DNA fragments of known sizes referred to as DNA MARKER, which acts as the standard curve in a tube is used.

Before running the gel, it's important to make sure that there is LID covering the gel in the gel rig. This will make sure that the electrical current runs through the gel and the gel stays cool.

5 0
3 years ago
Which brain lobe is responsible for voluntary movement thinking personality and intentionality or purpose?
stiv31 [10]

<span>The brain’s Frontal Lobe is responsible for voluntary movement (activities like walking, raising your hand, moving), thinking, personality, decision-making. It is what we can call our conscience, it makes us decide which actions are right or wrong, and what norms are socially acceptable.</span>

7 0
3 years ago
1. Fingerprints may be resolved into three large, general groups of patterns: the arch, the loop, and the ____.
LenKa [72]

1. According to Health, U. S., 1993: The Annual National Report on Health, the right answer is normally the whorl but it's not mentionned in the propositions.


2. The right answer is CODIS

Combined DNA Index System (CoDIS) is the US national database, created and maintained by the FBI. The CoDIS comprises three levels of information: local DNA index systems (LDIS) where the genetic profiles originate, state DNA index systems (SDIS) that allow laboratories in the same state to share information, and the index system of national DNA (NDIS) that allows states to compare information between them.


3. The right answer is latent prints.

Latent fingerprints are accidental fingerprints left by the skin on a surface, whether visible or invisible at the time of deposit.

Treatment techniques can visualize invisible latent print residues, whether from natural transpiration of the skin or from a contaminant in the blood.


4. The right answer is FACES.

The composite facial is a judicial investigation tool that represents the most likeable portrait possible of the face of a wanted person. It is established from testimonials.


5. The right answer is DNA profiling.

A genetic fingerprint, or genetic profile, is the result of a genetic analysis, making it possible to identify a person from a small amount of their biological tissues (hair bulb, blood, saliva, vaginal secretion, sperm).


6. The right answer is Criminal Investigative Analysis.

Criminal analysis is a method of analysis and investigation in the criminal field based on the use of new technologies (computer science). Criminal analysis distinguishes itself from behavioral analysis (criminal profiling).

Criminal analysis is a method that emerged in the US in the 1960s in the context of the fight against organized crime. This technique allows investigators to create links between elements (individuals, events, places, relationships ...), to structure and prioritize these elements (graphics, maps ...).


7. The right answer is Alec Jeffreys.

Sir Alec John Jeffreys (born January 9, 1950 in Luton, Bedfordshire) is a British geneticist who has developed genetic fingerprinting techniques.


8. The right answer is traditional.

DNA forensic analysis, commonly known as DNA analysis, is less than 10 years old. However, basic science dates back to at least 1953, when two young researchers from Cambridge University, James Watson and Francis Crick, discovered the molecular structure of DNA.


9. The right answer is the mtDNA database.

Unlike nuclear DNA, mitochondrial DNA does not contain repetitive sequences and inter-individual variations are sometimes visible on a single nucleotide. The polymorphism of the mitochondrial DNA is thus a polymorphism of structure (and not of repetition as that of the nuclear DNA).

Forensic analysis is performed on these polymorphisms present in a non-coding region called control region (also called D-loop). The two most variable portions of the control region (HV1 and HV2) are amplified by PCR and then detailed.


10. The right answer is revelancy test.

The revelation test allows to disclose something that was invisible or unnoticed before.

4 0
4 years ago
An atom has 10 electrons, 13 neutrons and 12 protons. What is the atomic
julsineya [31]
The atomic number is 12 :) it is the element magnesium :)

please rate as brainliest! thank you!!!
7 0
4 years ago
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