What are the respiration organs of the following fishes mamals insect lizzard

The process of change in the living parts of the ecosystem is called what?

kari74 [83]

Answer: The process of change in the living parts of the ecosystem is called succession.

Explanation: Change-And ecosystem changes over time and can undergo development through a process called succession.

7 0

2 years ago

Match each definition to the appropriate term. locus

liraira [26]

I) Locus- the chromosomal site where a specific gene is located. A locus is a fixed position on a chromosome, like the position of a gene or a marker. Each chromosome carries ,many genes; human's estimated haploid (n) protein coding genes are about 20,000, on the 23 different chromosomes.

ii) Interference; the observed double crossover frequency differs from the expected double crossover frequency. Cross over interference is used to refer to the non-random placement of crossovers with respect to each other during meiosis. It results in widely spaced crossovers along chromosomes. Interference may exert its effect across whole chromosomes. As chromosomes in many eukaryotes are large, interference must be able to act over megabase lengths of DNA.

iii) Linkage- the tendency for genes located in close proximity on the same chromosome to be inherited together. Normally when two genes are close together on the same chromosome, they do not assort independently and are said to be linked. Whereas genes located on different chromosomes assort independently and have a recombination frequency of 50%, linked genes have a recombination frequency that is less than 50%.

iv) Recombination- the process by which a new pattern of alleles on a chromosome is generated. Genetic recombination is the production of offspring with combinations f traits that differ from those found in either parent. During meiosis in eukaryotes, genetic recombination involves the pairing of homologous chromosomes. This may be followed by information transfer between the chromosomes.

4 0

2 years ago

The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list a

____ [38]

Answer:

F1

A A

a Aa Aa

All the offspring have flower located at axial position

F2

A a

A AA Aa

a Aa aa

Three offspring with genotype i,e Aa, Aa and Aa will have flower located at axial position

Only offspring with genotype "aa" will have flower located at terminal position

Explanation:

Let the allele "A" represent the characteristics of axial position of flower

Let the allele "a" represent the characteristics of terminal position of flower

Given -

"A" is dominant over "a"

F1 generation -

Two parents with homozygous genotype for both A and a are crossed . The punnet square for the cross between "AA" and "aa" is as follows -

A A

a Aa Aa

Thus the genotype of offspring is "Aa"

Since, "A" is dominant over "a", all the offspring have flower located at axial position

F2 generation-

The cross between two parents having heterozygous genotype "Aa" will take place .

The punnet square for the cross between "Aa" and "Aa" is as follows -

A a

A AA Aa

a Aa aa

Three offspring with genotype i,e Aa, Aa and Aa will have flower located at axial position

Only offspring with genotype "aa" will have flower located at terminal position

8 0

2 years ago

Why did zookeepers have such trouble keeping koala bears alive when other animals from Australia were thriving in zoos? Unlike m

Yuri [45]

<span>Zookeepers have a difficulty of keeping koala bears alive because Koala bears are susceptible to viral infections. There is a virus that is present to Koalas which is called the Koala retrovirus. Koala retrovirus makes a Koala bear more susceptible to infections and even cancer. </span>

7 0

3 years ago

Read 2 more answers

Describe the connection between limiting factors and invasive species

LuckyWell [14K]

Answer:

Some examples of limiting factors are biotic, like food, mates, and ... limiting factors can affect the populations of both plant and animal species. ... An invasive species is an organism that is not indigenous, or native, to a particular area. ... describe the environment, organisms, and feeding relationships of ...

Explanation:

3 0

2 years ago

What are the respiration organs of the following fishes mamals insect lizzard​

What are the respiration organs of the following fishes mamals insect lizzard