<span>Selective breeding in the process of choosing the best characteristics of organisms through many generations to improve the variety or breed of the organsism:
TRUE, SELECTIVE BREEDING IS AN ARTIFICIAL PROCESS THAT BREEDERS CAN APPLY TO PLANTS AND ANIMALS TO ENHANCE PARTICULAR TRAITS, SUCH AS SIZE.
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Humankind has domesticated animals over thousands of years for the sole purpose of companionship.<span>
FALSE. WHILST DOGS AND CATS HAVE BEEN BRED PARTLY FOR COMPANIONSHIP, DOMESTICATION OF ANIMALS HAS BEEN ESSENTIAL FOR SURVIVAL THROUGH ENHANCING FOOD PRODUCTION AND TRANSPORT. KEY EXAMPLES INCLUDE COWS AND HORSES.
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The remains of wild dogs were found among the prehistoric bones of our ancestors who lived thousands of years ago.
TRUE. DOGS WERE DOMESTICATED OVER 4000 YEARS AGO ORIGINALLY FROM WOLVES.
<span>Cats are the most domesticated animals in the world.true or false
</span>TRUE. THIS ONLY APPLIES TO SMALL HOUSE CATS AND NOT THE WIDER CAT FAMILY
<span>Animals like leopards,wolves,tigers,bears, and skunks could never be tamed enough to live with people.
FALSE. THIS QUESTION IS CONTROVERSIAL HOWEVER GIVEN ENOUGH GENERATIONS IT IS LIKELY THAT ANY ANIMAL CAN BE DOMESTICATED. MODERN DOGS ARE DERIVED FROM WILD WOLVES.
</span><span>Tamed wild animals that have even been born in captivity and never been in the wild,are considered domestic. True or false
FALSE. DOMESTICATION COMES THROUGH MULTIPLE GENERATIONS
</span><span>Selective breeding is the only method to change life forms characteristics. True or false
FALSE. SELECTIVE BREEDING IS AN ARTIFICIAL FORM OF EVOLUTION. EVOLUTION THROUGH NATURAL SELECTION IS OCCURRING CONSTANTLY IN NATURE AND IS THE PRIMARY MECHANISM DRIVING CHANGES TO LIFE FORMS/CHARACTERISTICS.</span>
Answer:
The correct answer is: Mutation.
Explanation:
- Mutation can be defined as a phenomenon due to which the nucleotide (DNA or deoxyribonucleotide) sequence present in the genome of an organism gets altered.
- Mutation can occur because of various factors like error-prone replication (DNA polymerase fails to proofread and incorporate the correct nucleotide in the daughter strand), improper DNA repair, exposure to mutagens (that causes mutations like Ultraviolet rays or UV rays that causes the formation of thymine dimer in the DNA), exposure to mobile genetic components like Transposons.
- The different types of mutations with respect to their effect on the DNA sequence are:
- Indel mutations: Also called Insertion Deletion Mutations where large sequences of DNA are either incorporated or removed from the genome. If such a mutation occurs in the protein coding region of a gene, then no functional protein can be obtained from such a gene.
- Base substitution: Here the required nucleotide in the DNA sequence is replaced with some other nucleotide during the process of replication. If this happens in the wobble nucleotide of a codon (the last nucleotide in the triplet codon. A Codon is responsible for encoding for an amino acid. Due to degeneracy of the genetic code, multiple codons can encode for a particular amino acid), that would not affect the protein sequence but if it happens in the other two nucleotide of the codon it can cause change in the amino acid sequence of the protein, resulting in a non-functional protein.
- Silent Mutation: Where the mutation has occurred either in the non-protein coding region of a gene or in the wobble nucleotide of a codon such the amino acid sequence does not get altered.
- Non-sense Mutation: Where the mutation is such that a stop codon is introduced in the middle of the protein coding region of a gene. Hence, a truncated non-functional protein can be produced from such a gene.
Answer:
mantle
Explanation:
The mantle is very thick: 1800 miles deep. The mantle is a little bit like a sandwich. On the top and bottom parts of the mantle, the rock doesn’t move very much. In the middle of the mantle is the asthenosphere. This part of the mantle moves around fairly slowly. This moving mantle layer pushes the earth’s plates around.
If there was a lot of breeding, then the population would increase and this would affect the ecosystem in two ways, there would be less vegetation since the jackrabbits would be consuming more, and the other way it would have an affect is that the predators of jackrabbits would suddenly have more food, meaning there could be an increase in predators, and an increase in predators would affect the jackrabbit population negatively if they’re all being eaten
Producers are organisms that can produce their own energy without consuming other organisms. For example, plants. Consumers are organisms that get their energy from consuming other consumers, and other animals. For example, lions get their energy from eating other animals.
