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ddd [48]
3 years ago
9

Fish in the class Chondrichthyes have skeletons of cartilage and powerful jaws. Which fish do not belong to this group?

Biology
2 answers:
olchik [2.2K]3 years ago
8 0
The Answer is Trout You can See Rays,Skates and even Sharks of course have very powerful jaws but trout have vormine teeth which grow on the top of there mouth therefore they do not belong in the <span>Chondrichthyes Class...So The Answer Is TROUT.</span>
torisob [31]3 years ago
4 0
Trout because skates, sharks and rays are stronger than the TROUT. :)
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A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All
Ainat [17]

Answer:

The correct answer is-

F1 -  AaBb (lacerate)

F2 - A_B_; A_bb; and aaB_ (lacerate)

     - aabb (normal)

2. Two genes, with a dominant allele at either or both loci.

Explanation:

The given information gives THE following data:

Dominant: Lancerate leaves - AABB

Recessive: normal leaves - aabb

F1 has - all Lacerated leaves - AaBb

F2 by selfing F1:

         AB               Ab         aB         ab

AB    AABB        AABb      AaBB    AaBb

Ab     AABb       AAbb      AaBb     Aabb

aB     AaBB       AaBb       aaBB     aaBb

ab     AaBb       Aabb       aaBb      aabb

Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94

And normal 1/16 = 0.062 is almost same as 16/265 = 0.060

Thus, the genotypes of -

F1 -  AaBb (lacerate)

F2 - A_B_; A_bb; and aaB_ (lacerate)

     - aabb (normal)

5 0
3 years ago
Explain each of the following, giving a named example in each case:
gogolik [260]
(a) solute = substance (solid or liquid) in lesser amount, which will [dis]solve into the solvent

(b) solvent = substance (liquid) in larger amount, which [dis]solves the solvent
it's dissolvability is called "solvency"
water is known as the universal solvent because it is abundant on Earth and has a high solvency

(c) solution = the combination of solvent + solute
depending on the saturation of solute within solvent, the solution may appear clear, like the solvent

**think of warm sugar-water (solution), when all the sugar (solute) dissolves into the water (solvent), the solute seems to have disappeared
5 0
3 years ago
Help if you know thank you x
slamgirl [31]

Answer:

C. O2 (Oxygen)

Explanation:

6 0
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What is ne function of the smooth endoplasmic reticulum?
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Smooth ER<span>, by contrast, is not associated with </span>ribosomes<span>, and its </span>functions<span> differ. The </span>smooth ER<span> is involved in the synthesis of lipids, including cholesterol and phospholipids, which are used in the production of </span>new<span> cellular membrane.</span>
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every cell contains certain structures that perform specialized functions for the cell. What are these structures called?
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