Do all species have variations?

Do all species have variations?

The genetic variation of an entire species is often called genetic diversity. Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by: mutation.

Can there be a variety of traits in the same species?

Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Genetic variation in a group of organisms enables some organisms to survive better than others in the environment in which they live.

What trait do all species have in common?

All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

What are variations in species?

The differences in characteristics between individuals of the same species is called variation . Some variation is passed on from parents to offspring, via genes during reproduction. This is inherited variation. Some variation is the result of differences in the surroundings, or what an individual does.

Do organisms that look similar have variation?

Within the same species, individual organisms can look very different. For all three species of butterflies, wing color and pattern varies depending on the season during which they were born.

Why do some traits of the same species vary?

The variation and distribution of traits in a population depend on genetic and environmental factors. Genetic variation can result from mutations caused by environmental factors or errors in DNA replication, or from chromosomes swapping sections during meiosis.

What are two variations or different versions of this trait?

Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits. Since human cells carry two copies of each chromosome? they have two versions of each gene?.

Why do different species have different traits?

Different organisms vary in how they look and function because they have different inherited information; the environment also affects the traits that an organism develops. In sexual reproduction, each parent contributes half of the genes acquired by the offspring resulting in variation between parent and offspring.

Which of the following is not a characteristic of all animals?

Reason for the correct answer: An internal body cavity that is derived from the mesoderm of the triploblastic animals is known as coelom. Therefore, the presence of coelom is not the characteristics of all animals. All animals are heterotrophic, multicellular eukaryotic organisms.

How do you think variation in these species comes to be?

How do you think variation in these species comes to be? (Variation arises through different combinations of genes inherited from the parents and through the continual mutation of genes. Variation is also a key step in the evolutionary process. It is a prerequisite for evolution to occur.)

How is it possible for two species that look similar to be less related than two species who look completely different?

Nature selects the traits that give an organism an advantage over others. These traits are found in many other organisms. What they evolved from differs, but their mutations remain the same/similar.