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Rasek [7]
3 years ago
12

Two populations of lobsters do not mate because one population lives in the Atlantic Ocean and the other lives in the Pacific Oc

ean. Two populations of flowers do not produce offspring because one blooms during early spring and the other blooms during late spring. A male snail and a female snail from different species attempt to mate, but the orientation of their different types of shells prevents mating from occurring. Many populations of clams release their sperm and eggs into the same region of a lake, but only the sperm and eggs from the same species successfully unite to form zygotes. SubmitRequest Answer Provide Feedback Next  Correct. Followup. Male birds-of-paradise attract females of the same species through highly elaborate dances and songs. Such behavioral tactics usually only attract mates of the same species. End of followup.
Biology
2 answers:
Archy [21]3 years ago
8 0

Answer:

1)Habitat Isolation (for lobsters)

2)Temporal Isolation (for flowers)

3)Mechanical Isolation (for snails)

4)Gametic Isolation (for clams)

5)Behavioral Isolation (for birds)

Explanation:

777dan777 [17]3 years ago
3 0

Answer:

Two populations of lobsters do not mate because one population lives in the Atlantic Ocean and the other lives in the Pacific Ocean

This is Habitat isolation- this occurs because the two separate lobster populations prefer different habitats which lowers their probability for mating. it serve as a barrier to gene flow in a population.

Two populations of flowers do not produce offspring because one blooms during early spring and the other blooms during late spring.

Temporal isolation this is a biological isolation which occurs when two organisms of the same species have different breeding times.Because this is related to production of  new species this type of isolation  is called reproductive isolation.

A male snail and a female snail from different species attempt to mate, but the orientation of their different types of shells prevents mating from occurring,

This is mechanical isolation this is a type of isolation in which differences in certain physical structures present in either of the two  species of organisms interfere with the ability to reproduce. Thus orientation in the shell shape isolated the snails to mate.

Many populations of clams release their sperm and eggs into the same region of a lake, but only the sperm and eggs from the same species successfully unite to form zygotes.

This is Gametic isolation. It refers to incompatibility of the two sex -cells involved in copulation. Thus only sperms  and eggs from the same species will fertilize to form zygote.

<u>Omitted question</u> The birds-of-paradise are a group of brightly colored birds living mostly in New Guinea that have elaborate and elongated feathers. Behavioral isolation prevents different birds-of-paradise species from mating and reproducing.

Female birds of the same species  are only attracted to the  dances and songs produced by compatible  male of the same species.Thus females which are not receptive to the dances and songs  of the males are not of the same species.Therefore the incompatible behaviours  isolated these birds from one another.- behavioural isolation.

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Answer:

Incomplete dominance is the inheritance pattern where the dominant allele did not mask the recessive allele completely and form a mix of both alleles. Here the inheritance is the incomplete inheritance. The ratio of F2 generation is 1:2:1.

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R1R1 = 42

R2R2 = 39

R1R2 = 86

Total R1 alleles = 2*42+86 = 170

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Phenotype     Observed(O)    Expected (E)    O-E      (O-E)2     (O-E)2/E

Blue                 42                   43.44               -1.44       2.0736     0.0477

cyan                86                   83.46                 2.54     6.4516     0.0773

green              39                    40.1                    -1.1       1.2100      0.0302

Total              167                     167                                               0.1552

Chi-square value = 0.155

Degrees of freedom = no. of phenotypes – 1

Df = 3-1 = 2

Critical value = 5.99

Chi-square value of 0.155 is less than the critical value of 5.99. So we accept the null hypothesis.

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