7. Chemical or physical factor that determines the number
of organisms in a population

Answer:

D. very little precipitation and few, specialized plants

Explanation:

its the answer on edge

The two characteristics which polar and dry climates have in common include very little precipitation and few specialized plants. Thus, the correct option is D.

A polar climate is a place where the climate generally has a temperature below the freezing, icy, and it is covered in snow. These areas do not get enough amount of direct heat and sunlight from the sun. Polar climates are located at the North Pole of the Arctic, and at the South Pole on the continent of Antarctica.

The dry climate are found in deserts which are very dry and the temperature of these areas are very high.

Both of these climates show some common characteristics such as very little precipitation and few specialized plants which can survive in these conditions.

Therefore, the correct option is D.

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Answer:

To qualify as a biodiversity hotpot, an area must meet two strict criteria: Contain at least 1,500 species of vascular plants found nowhere else on Earth (known as "endemic" species). Have lost at least 70 percent of its primary native vegetation.

Explanation:

Biodiversity hotspots are a method to identify those regions of the world where attention is needed to address biodiversity loss and to guide investments in conservation.

Answer:

Explanation:

protein synthesis

Answer:

Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant or fungus in response to gravity pulling on it. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms.

Explanation:

Answer:

The answer willk be option C- Under the age of 20

Answer:

The map distance = 33.3 cM

Explanation:

Let us take,

BBLL  as blue shell, long antenna .........Parent 1

bbll  as green shell, short antenna .......... Parent 2

Then, cross between parent 1 and parent 2, which is

BBLL X bbll

The F1 generation will be heterzygous

BbLl as blue shell, long antenna ...... F1 offspring

By the test cross,

BbLl X bbll :

given,

BL/bl = 82 : Parental

bl/bl = 78 : Parental

Bl/bl = 37 : Recombinant

bL/bl = 43 : Recombinant

Total = 240

Recombination frequency =  {  [tex]\frac{Number of recombinants}{Total offspring}[/tex]}*100

= (80/240)*100 = 33.33 %

Thus, the map distance = 33.3 cM

Answer:

C. Non-covalent interactions between the protein and specific bases in the major groove of DNA

Explanation:

Activator or repressor proteins are proteins with specific DNA-binding domains that have affinity by one or two DNA strands. In general, these proteins interact with the major groove of the B-DNA structure since this structure exposes more functional groups for binding. Non-covalent interactions are a type of interaction that does not involve the sharing of electrons. The interaction between proteins and DNA is due to the combination of different non-covalent interactions, which can be classified into four major types: van der Waals, hydrophobic, hydrogen and ionic interactions.

Answer:

Year

I took a test with a similar question recently

Answer:

1. B

2. E

3. P

4. E

5. B

6. B

7. B

8. E

9. E

10. E

Explanation:

1. Both prokaryotes and eukaryotes have a cell membrane. Hence, it is B

2. Only eukaryotes have a nucleus. Hence, it is E

3. Bacteria are an example of prokaryotes because they lack a membrane-bound nucleus. Hence, P

4. Animals are an example of eukaryotes because they possess a membrane-bound nucleus. Hence, E

5. Both prokaryotic and eukaryotic cells contain ribosomes. Hence, B.

6. Both prokaryotes and eukaryotes contain cytoplasm. Hence, B.

7. Both prokaryotes and eukaryotes contain genetic material, such as DNA. Hence, B

8. Only eukaryotes contain membrane-bound organelles e.g mitochondrion, endoplasmic reticulum. Hence, E.

9. Plants are an example of eukaryotes because they possess a membrane-bound nucleus. Hence, E.

10. My body cells as a human being are made of eukaryotic cells. Hence, E.

Answer:

i need help with this too somebody help

Explanation:

Answer: crust

Explanation: The crust is the most outer layer sold layer of planet Earth. We live on the crust of the Earth. Therefore, crust is the answer.

Hope this helps!

Answer:

considered a vegetable.

Explanation:

Answer:

large=  supergiant, supernova, then a neutron star

small= giant, planetary nebula, white dwarf

Explanation:

star life cycle changes by these phases

Answer:

Photosynthesis

Explanation:

The green structures in the cell are chloroplasts. They are green because they contain the green pigment chlorophyll. Chlorophyll traps light energy and uses it to produce sugar molecules as food for the cell.

Answer:

The following statements are true:

The microbe must be present in individuals suffering from the disease and absent from healthy individuals.

If organisms from the pure culture are injected into a healthy experimental animal, the disease symptoms should appear.

The microbe must be isolated and grown in pure culture.

Note: The question is incomplete. The complete question is given below:

Evaluate these statements about Koch's postulates, which are used to establish a causative link between a specific microbe and a specific disease. Which of them are true? Select all that apply.

The microbe must be present in individuals suffering from the disease and absent from healthy individuals.

The microbe does not have to be isolated from the experimental animal as long as the disease is present.

If organisms from the pure culture are injected into a healthy experimental animal, the disease symptoms should appear.

The microbe must be isolated and grown in pure culture.

Explanation:

Robert Koch, a German Physician, in 1884 postulated the following four criteria in order to establish a causative relationship between a microbe and a disease;

From the above, the following out of the statements are true:

The microbe must be present in individuals suffering from the disease and absent from healthy individuals.

If organisms from the pure culture are injected into a healthy experimental animal, the disease symptoms should appear.

The microbe must be isolated and grown in pure culture.

Answer:

Ridge push and slab pull is a result.  

Explanation:

Can I get brainiest!

Answer:

The answer is ridge push and slab pull

Explanation:

Answer:

B. NAD+ is formed by a fermentation process in anaerobic respiration by the conversion of pyruvate into lactate and by simple oxidation of NADH in aerobic respiration.

Explanation:

Nicotinamide adenine dinucleotide (NAD) is an important coenzyme that may exist in two different forms: oxidized (NAD+) and reduced (NADH). The fermentation is an anaerobic oxidation-reduction reaction where pyruvate and NADH are reactants, while lactate and NAD+ are products generated by the oxidation of NADH to NAD+ and pyruvate to lactate, respectively. On the other hand, during aerobic respiration, NADH generated by glycolysis is oxidized to form NAD+ by the donation of its electrons to reduce pyruvate to lactate. Subsequently, NAD+ is reused in glycolysis (again) in order to generate more molecules of ATP.

Answer: it checks the DNA for errors

Explanation:

Just took test

Answer:

A. ties chunks of dna together, took the test

Explanation:

Answer:

D

Explanation:

The heavier somthing is than the gravatational pull is more heavy

Answer:

Two electrons are added to one sublevel at a time (Hund's Principle)

Answer:

Explanation:

The field of forensic science is important to the criminal justice system. Forensic personnel must pay close attention to detail during the collection, preservation, and analysis of physical evidence. If evidence is mishandled, manipulated, or misinterpreted it can potentially destroy a case and/or the lives of all individuals involved

Answer:

Explanation:

In 1904, Scotland Yard officials introduced fingerprint matching to US law enforcement officials at the World’s Fair. The fact that forensic science was not born from the scientific community meant that forensic scientists were not always bound to the quest for knowledge, but instead for the purpose of solving crimes. This difference led to misaligned incentives. Expert witnesses were often paid per conviction in many states.

In the late 1980s, DNA evidence, which was born in the scientific community, has helped identify the guilty and exonerate the innocent. Many other forensic techniques, such as hair microscopy, ballistics analysis, and arson investigations, have not been subjected to the rigorous scientific evaluation that DNA analysis has. Other techniques, such as blood typing, have been properly validated.

These invalidated techniques have led to the Innocence Project, which holds that forensic science techniques should be shown to be valid and reliable through research and assessment of validity and reliability, and subject to accreditation and certification to assure quality. States are eligible to receive grant money if they do so. This change has resulted in the growth of many organizations, such as the ASCLD/LAB, that accredit forensic scientists.

Answer and Explanation: The farmer has a pure-breeding line of tomato means the farmer has a tomato with genotype FFrrtt while the other line of tomato has genotype ffRRTT.

The cross between these lines gives a F1 generation of heterozygous full, red and axial or FfRrTt.

With an individual of F1 crosses with another individual of F1, the Punnet Square will be:

FfRrTt x FfRrTt

1) Dividing each characteristics, for simplicity:

          F         f

F       FF       Ff

f        Ff        ff

          R       r

R       RR     Rr

r        Rr      rr

         T      t

T       TT   Tt

t        Tt     tt

Analysing Punnett squares, we notice the line wanted (ffrrTT) will be produced, when an individual of F1 generation cross with another individual with the same generation.

The correct answers is D. Natural killer cell

Explanation:

Natural killer cells are a type of cell in the immune system. These differ from other cells because these are innate, this means they attack all enemy cells or pathogens and are not specific. Also, they are the first general immune defense.

Moreover, the role of these cells to attack any enemy cell including cancer cells is possible due to specific chemicals or substances these cells release. One of these is perforins, which are mainly released by natural killer cells and destroy these by creating lesions in the cell membrane. According to this, the correct answer is D.

Answer:

nucleus- this is where all genetic information is stored.

mitochondria- where respiration occurs

cell wall- gives the cell structure and prevents it from bursting

chloroplast- contain chlorophyll which stores energy from the sun for photosynthesis

cytoplasm- where chemical reactions occur

cell membrane- controls what comes in and out of the cell.

mitochondria: where respiration occurs

cell wall: gives the cell structure and prevents it from bursting

chloroplast: contain chlorophyll which stores energy from the sun for photosynthesis

cytoplasm: where chemical reactions occur

cell membrane: controls what comes in and out of the cell.

Answer:

its the 3 one

Explanation:

Answer:

C or D

Explanation:

Answer:

Amphibians and reptile are somewhat alike and they are not born the same size so I am leaning more towards c

Explanation:

Answer:

B: helps break down fats

Explanation: