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Many organisms can reproduce asexually through mitosis, while other organisms reproduce sexually, and their cells carry out meio

Alexus [3.1K]

Meiosis would be most beneficial to a species in a situation where an organism falls prey to many efficient predators. Answer:a)Meiosis: numerous daughter cells produced would increase the species' population.
The species needs to evolve quickly, and the best way to do that is to shuffle existing mutations through sexual reproduction.

8 0

3 years ago

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How do invasive Australian rabbits affect the food web?

SVETLANKA909090 [29]

Answer:they add another animal into it

Explanation: They’re not a native species and therefore not a usual meal for most predators. Since rabbits are herbivores they don’t have a prey

8 0

3 years ago

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Soo-Jung used the subtraction property of equality to solve an equation for y. Which equation could be the one that Soo-Jung sol

antiseptic1488 [7]

Explanation:

Option 1.

4y=12

Dividing 4 both sides

y=3

Division property should be used.

Option 2.

$\dfrac{y}{4}=12$

Cross multiplying each other,

y=12(4)

y=48

Option 3.

2(4y)=12

Opening bracktet in LHS

8y=12

Dividing both sides by 8 i.e.

$y=\dfrac{12}{8}\\\\y=\dfrac{3}{2}$

Division property is used.

Option 4.

y+4=12

Subtracting both sides by 4 i.e.

Y+4-4=12-4

y=8

Subtraction property is used.

It means that in option (4) Soo-Jung used the subtraction property of equality to solve an equation for y.

3 0

3 years ago

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How does extinction affect evolution?

Semenov [28]

If a species is said to be extinct, then that species is reduced to zero. There are none living in existence. The affects to other organisms of its extinction would depend on their value to the ecosystem. Regardless, extinction completely stops evolution of the species extinct.

5 0

3 years ago

(c) Based on the data in Table 1, describe why the dominant alleles for body color and wing shape are the alleles that produce a

Brrunno [24]

Answer:

Check the explanation

Explanation:

Consider the below table of F2 data of phenotypic flies: we can reconstruct the table as seen in the second attached image below:

From the above observations it is clear the Gray body long wings and Ebony body vestigial wings are the parental combinations and that the Gray body vestigial wings and Ebony body long wings are the recombinants.

Also the ratio indicates that Gray body is dominant over ebony body and that long wings is dominant over vestigial wings.

here the genes for the two characters have shown independent assortment which means that the genes are unlinked if located on the same chromosome or are located on different chromosomes.

Now F1 hybrid= GgLl (G for Grey and L for Long)

Cross between F1 hybrid and true breeding Gray vestigial (GGll)

GgLl x GG ll

Gametes-----------> GL Gl gL gl Gl

GL Gl gL gl

Gl GGLl GGll GgLl Ggll

(Gray long) (Gray vestigial) (gray Long) (Gray vestigial)

Therefore the probability of getting the flies with gray body vestigial wings= 2/4= 50%

b) The reason why the students obtained the above given F2 results involving a cross between true breeding Gray body and long wings with true breeding Ebony body and vestigial wings is that the genes for the two charcters asssort independently in F2 generation and that the genes are not linked as:

Parents------------------> GGLL x ggll

Gametes -----------------> GL gl

F1---------------------> GgLl (Gray long but in heterozous condition)

Now GgLl x GgLl

Gametes GL Gl gL gl GL Gl gL gl

Here gametes assorted independently and hence in F2 generation we got the above results (U can show the results in the form of punnett square.

4 0

4 years ago