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FrozenT [24]
3 years ago
5

Adaptive melanism describes selection for

Biology
2 answers:
Ipatiy [6.2K]3 years ago
7 0

Answer:

the answer is c,  

darker pigmentation

Explanation:

Korvikt [17]3 years ago
3 0

Answer:

Its C

Explanation:

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What is the advantage of producing sperm in a system of tubes rather than in a solid tissue?
trasher [3.6K]

Answer:

Explanation:

The sperms are the male gametes these develop in the testicles which are the male reproductive organs. Each testes consists of system of tubes called as seminiferous tubules. In seminiferous tubules the spermatogenesis takes place in which the development sperm cells receives nourishment for maturation.

The sperms moves from the seminiferous tubules to the duct like vas deferens from where the sperm moves to be ejected out of the body. If the sperms were produced by the solid tissue except the seminiferous tubules the movement of sperms will be restricted the ejection process may get slow down.

8 0
2 years ago
A plant has the genotype AAbbCcDDEeff, where each letter represents a different gene. This plant is crossed with another whose g
scoundrel [369]

Answer:

The fraction of the offspring that will show the phenotype produced by the recessive c allele is 1024/4096 = 0.25 A-BbccDdE-Ff = 25%

Explanation:

You can calculate the fraction of the offspring that will show the phenotype produced by the recessive c allele by making the punnet square for each gene and then multipling the phenotypic proportions, like this:

Cross) AAbbCcDDEeff     x      AaBBCcddEEFF

Cross For each gene by separately:

  • Parental )        AA    x    Aa

       Gametes)  A    A         A    a

        F1)             2/4 AA  

                          2/4 Aa

  • Parental )        bb    x    BB

         Gametes)  b    b         B   b

          F1)                   4/4 Bb

  • Parental )        Cc    x    Cc

        Gametes)  C    c         C    c

         F1)             1/4 CC

                           2/4 Cc

                            1/4 cc

  • Parental )        DD    x    dd

       Gametes)  D    D          d    d

        F1)             4/4 Dd

  • Parental )        Ee    x    EE

        Gametes)     E     e      E     E

         F1)             2/4 Ee

                           2/4 EE

  • Parental )        ff    x    FF

         Gametes)     f     f      F     F

          F1)             4/4 Ff

So, fraction of the offspring that will show the phenotype produced by the recessive c allele is:

4/4 A-  x  4/4 Bb   x   1/4 cc   x   4/4 Dd   x  4/4 E-   x   4/4 Ff =  

1024/4096 = 0.25 A-BbccDdE-Ff =25%  

6 0
3 years ago
Read 2 more answers
Plz answer I need help​
Bogdan [553]
1.Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills either on side of the pharynx.

2.Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries.

3.The colour is red

4. A Gill filaments project from each arc between the dorsal upper and ventral lower surfaces of the filaments.
3 0
2 years ago
Life functions are performed at many levels of biological organization. Which level of biological organization is the simplest l
stiv31 [10]
I believe the answer you are looking for has to do with cells, they are the basic building block of life and are the smallest life that can support itself.
5 0
2 years ago
Which question can be answered by science
OLEGan [10]

Answer:

It's B - How much water is used to produce one paper bag?

3 0
2 years ago
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