pls help me answer pls

Answer: (2) provide cells that are necessary for the survival of the species

Explanation:

Answer: There are 47 chromosomes in each body cell.

Explanation:

Answer:

there are 47 chromosomes in each body cell

Explanation:

Answer:

92

Explanation:

23 * 4 = 92

hope this helped

Answer:

A vasectomy has no effect on libido, erections, or urination. The amount of semen a man ejaculates will not change after a vasectomy; the only difference is that there are no sperm in the ejaculate. The testicles will also continue to produce testosterone at the same rate.

Explanation:

Vasectomy is the surgical method of male sterilization or permanent contraception. During this process, the male vasa deferentia are cut and sealed to prevent sperm from the urethra and thereby prevent fertilization.

Vasectomy is done in the case of males. Many males are concerned about urination and erection. It is the different duct where urine uses the ureter and sperm uses the gas deferens.

Vasectomy is a method of contraception that has no effect on libido, urination, and erection. Hence the vasectomy does not affect urine flow.

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Answer:

That is a true statement

Answer:

Soils are composed of mixtures of mineral and organic materials, but are classified according to the size of their mineral particles. The three main texture groups are sandy, silty, and clay.

Sandy soil contains particles that can be seen with the naked eye and feels gritty when rubbed between the thumb and forefinger. Sandy soils will generally not stick together when wet.

Silty soil contains particles, which are smaller than sand particles but larger than clay particles. Silt feels powdery when rubbed between the thumb and forefinger. Silty soil sticks together when wet, but will not hold its shape after it is dry.

Clay soil contains the smallest particle size. Clay particles form a sticky soil when wet and will generally hold a shape after drying. Soils are rarely composed of just sand, silt, or clay. They are usually a mixture of the three with a larger percentage of one size of particles.

Answer:  

Depending upon the average grain-size and the conditions under which soils are formed and deposited in their natural state, they may be categorized into following types on the basis of their structure: In the grain-size classification, soils are designated according to the grain-size or particle-size. The more common classification systems are enlisted below: Geological Classification

Classification by Structure

Classification based on Grain-size

Unified Soil Classification System

Preliminary Classification by soil types

Based on the agencies responsible for their present state, soils may be classified under following types:  Residual Soils

Transported Soils:

Alluvial or sedimentary soils

Aeolian soils

Glacial soils

Lacustrine soils

Marine soils.

Then you have inorganic and organic soils.

Explanation:

Answer:

Water is contaminated with animal waste

Explanation:

The presence of fecal coliform bacteria in a sample of river water suggests that the water is contaminated with animal waste. Thus, the correct option for this question is B.

The presence of fecal coliform in any sort of river or drinking water often indicates fecal contamination. This means that there is a greater risk that pathogens are present than if only total coliform bacteria are detected. E. coli is a sub-group of the fecal coliform group.

If coliform bacteria are present in your drinking water, your risk of contracting a water-borne illness is increased. This is because these bacteria are the most potent source of waterborne illness.  Although total coliforms can come from sources other than fecal matter, a positive total coliform sample should be considered an indication of pollution in your well.

Therefore, the presence of fecal coliform bacteria in a sample of river water suggests that the water is contaminated with animal waste. Thus, the correct option for this question is B.

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Answer:

1) RNA strand =  UCA  GCA  AAU

2) Amino acids:   Asparagine       Arginine             Stop

                            (ASN)               (ARG)              (STOP)

Explanation:

Some theory that you need to know to answer the question:

Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid through the action of the aminoacyl-tRNA synthase enzyme. The whole complex, amino acid + enzyme + tRNA is named aminoacyl-tRNA. Considering that there are twenty amino acids available, there are also twenty complexes of aminoacyl-tRNA, one for each amino acid.  

tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.  

Once the new amino acid joins the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.  

Now, to fill in the boxes, you need to pay attention to two things:

• Anticodon: In this box, you need to place the sequence of bases that pairs with the mRNA codon.  

• Amino Acid: In this box, you need to place the amino acid that is codified by the mRNA codon.  

For instance, let us say that the codon of mRNA is CUC. The anticodon for this sequence is GAG (because guanine joins cytosine and adenine joins uracyl).  

The amino acid places on the 3´extreme of the tRNA molecule will be the one that is codified by the codon, NOT the anticodon. So, as the codon is CUC, the amino acid will be Leucine, Leu. Do not use the anticodon GAG to fill these boxes. Remember that tRNA is translating information carried by the mRNA, so we need to use this information to grow the protein.

1)

Strand of DNI  →  AGT  CGT  TTA

So, we need to pair these bases, knowing that:

Adenine (A) and guanine (G) derive from purines, while Thymine (T) Uracile (U), and Cytosine (C) derive from Pyrimidines.  

In the DNA molecule, Adenine (Purine) always pairs with Timine (Pyrimidine), while Guanine (Purin) forms pairs with Cytosine.

In the RNA molecule, Adenine is paired with Uracil, U. So, whenever there is an Adenine in the DNI strand, it pairs with Uracil of RNA strand. If there is a Thymine in the DNI strand, it pairs Adenine of the RNA strand. And, as always, Guanine pairs with Cytosine.

Knowing how to pair bases, we can fill the RNA molecule boxes.

                                     A ⇒ U              C ⇒ G            T ⇒ A

                                    G ⇒ C               G ⇒ C            T ⇒ A

                                    T ⇒ A                T ⇒ A            A ⇒ U

2)

Now we need to translate these new codons of mRNA to amino acids.

To fill the boxes you should have a genetic code chart to see the codons that codify for each amino acid.

Codon:                 AAU                 CGA                UAG

Amino acids:   Asparagine       Arginine             Stop

                            (ASN)               (ARG)              (STOP)

The new protein is synthesized from the amino terminus to the carboxy terminus of the mRNA molecule. The added amino acids to the chain are coded by a codon formed by three bases in the mRNA. mARNs also have a start and end codon that are the signals of the synthesis initiation and finish. When the ribosome reaches a stop codon, protein synthesis is over.  

Answer:

Explanation:

These "missing links" demonstrate the evolution of traits within groups as well as the ... You have discovered the 5. fossil remains of three organisms. One is mammalian, one is reptilian, and the third has both mammalian and reptilian features. What techniques could you apply to determine possible relation- ships a

The methods which are used for determination of the possible relationships among the given organisms is by comparative anatomy, DNA sequence analysis and protein comparison.

The study of the body structures of different species of animals to understand the adaptive changes in them during evolution from common ancestors is referred to as comparative anatomy.

The methods which are used for determination of the possible relationships among the given organisms is by comparative anatomy, DNA sequence analysis and protein comparison.

Thus, using these techniques one can determine possible relationships among these organisms.

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In asexual reproduction, reproductive organs aren't used but they're used.

advantage of sexual- A lot of genetic variation. since they have DNA of two parents. they can survive more and adapt more.

disadvantage of asexual- diversity is limited. Since the organism only gets the DNA of one parent, they wouldn't be able to really survive if something happened.They would easily be extinct.

Sorry I can't really cone up with better words but I hope you get the idea. it all comes down to natural selection really if you've learned about it. Hope it helped!!!

Answer:

long story short, its asking how their relationships made them lost, so what they are asking is what made them lost as their characteristics.

Explanation:

so yeah

We calculate the number of moles of water given its mass by dividing the mass by the molar mass.  

                              n water = (36.04 g) / (18 g/mol)  

                               n water = 2 mols

From the given balanced equation, every 6 moles of water produced will require 7 moles of oxygen.

                               n oxygen = (2 mols H2O) x (7 moles O2 / 6 moles H2O)

                               n oxygen  = 2.33 mols O2

Answer:

I think it's correct but i'm not sure

Explanation:

+ is normal vision and dominant

c is colourblind and recessive

Explanation:

ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis.

Answer:

zygotes

Explanation:

Human fertilization and development

Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.

Answer: Ocean acidification is primarily caused by the uptake of carbon dioxide from the atmosphere .  

Explanation:

Answer: C

Explanation: Lesser pandas are more genetically similar to raccoons that they are to giant pandas.

The statement "Lesser pandas are more genetically similar to raccoons than they are to giant pandas" is not fully supported by the information in the dendrogram presented above.

While it is true that the dendrogram suggests that the giant panda and lesser panda share a more recent common ancestor than either does with the other bears or the raccoon dog, it does not provide evidence to support the claim that the lesser panda is more genetically similar to raccoons than to giant pandas.

The dendrogram provides evidence for the evolutionary relationships among these organisms based on their DNA and RNA sequences. It suggests that these organisms have a common evolutionary history and can be grouped together based on their molecular data.

However, it does not provide information on the degree of genetic similarity between any two specific organisms or groups of organisms.

Therefore, while it is possible that the lesser panda may be more genetically similar to raccoons than to giant pandas, this claim cannot be fully supported by the information in the dendrogram alone.

Further analysis of genetic data and comparison of specific genetic sequences would be necessary to determine the degree of genetic similarity between these organisms.

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Answer:

In order to be a carrier, the male must be a carrier of the allele without expressing it phenotypically. This can only happen when the inheritance is autosomal because he has a pair of autosomic chromosomes meanwhile he only has one X chromosome. So when the inheritance is X-linked, the allele of the X chromosome will always be phenotypically expressed

Answer:C. a double helix with bases inside the helix

ExpAnswer: I got it correct

Answer:

a

Explanation:

the probability of an offspring with a given genotype resulting from a cross.

Answer:

When a liquid is heated, the molecules gain energy. This means they move and vibrate more, causing them to escape in the atmosphere.

Explanation:

Answer:

In the light-independent reaction, products of the light reaction are used to make sugars. Here, in the Calvin cycle, the enzyme, RuBisCO, catalyzes the fixation of CO2 with Ribulose 1,5-bisphosphate (RuBP). Organic molecules are reduced and RuBP is regenerated

Explanation:

Answer:

ATP and NADPH transfer chemical energy to 3-PGA.

Glyceraldehyde 3-phosphate (G3P) is created.

G3P is used to make sugar.

Explanation:

Answer:

I believe that the answer would be skin abnormalities.

Explanation:

Growths do not apply.

Melanin applies mainly to freckles.

Answer:

Water is a never ending source as well as it dosent produce the carbon footprint in which many energy companies and plants produce.

Explanation:

Answer:

Water

Explanation:

1. D. Marine

2. A. Desert

3. E. Freshwater

4. C. Grassland

5. B. Tundra

If there is a #6, then the answer would be F. Tropical rainforest