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3 years ago

Jellyfish and coral are _____. radially symmetrical bilaterally symmetrical asymmetrical

Biology

2 answers:

s2008m [1.1K]3 years ago

7 0

Answer:

The correct answer would be radially symmetrical.

Jellyfish and coral belong to the phylum Cnidaria and exhibit radial symmetry.

Radial symmetry refers to the body plan in which an organism can be divided into two equal halves by passing a plane through the central axis.

Organisms which have radial symmetry usually resemble a pie shape. They do not exhibit a right or a left side.

These organisms have only top and bottom surface or front and a back side.

finlep [7]3 years ago

4 0

Jellyfish and corals are example of radially symmetrical. When you say radial symmetric, it's a kind of animal that has a surface that have a mouth in the center that can reach out in any direction to be able to catch and eat their foods.

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klemol [59]

Answer:

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3 years ago

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3 years ago

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2 years ago

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3 years ago

Read 2 more answers

In pea plants, purple flowers are dominant to white flowers, and the purple and white alleles are represented with P and p, resp

amm1812

Answer: 75% of the plants are purple and 25% are white. The phenotypic ratio can be expressed as 3:1.

Explanation:

Heterozygous means that its genotype has two distinct alleles, i.e. a dominant and a recessive one. So the genotype of the plants is Pp, and each plant has two alleles since they are diploid organisms, which have two copies of each gene.

Each plant produces gametes, which are haploids cells. That is, they only have one copy of each gene (one allele). So, the gametes produced by Pp have a P or p genotype. During fertilization, the maternal and paternal gamete are fused to form a diploid zygote where their genotype will have one allele from the father and one from the mother.

By making this monohybrid cross, we cross the gametes of each parent in the punnett square (see picture)

In the offspring, we see one PP genotype (homozygous dominant), two Pp genotypes (heterozygous) and one pp genotype (homozygous recessive). Since we know the P allele is dominant and it codes for purple color, a genotype only needs one P allele to express that phenotype. So Pp and PP organisms are purple, and only pp is white. That means 75% of the plants are purple and 25% are white. The phenotypic ratio can be expressed as 3:1.

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3 years ago