1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solniwko [45]
3 years ago
7

How has artificial selection demonstrated species changing over time

Biology
1 answer:
tatyana61 [14]3 years ago
8 0

Answer:

Long before Darwin and Wallace, farmers and breeders were using the idea of selection to cause major changes in the features of their plants and animals over the course of decades. Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce.

You might be interested in
Suppose that the "fabulous" phenotype is controlled by two genes, A and B, as shown in the diagram below. Allele A produces enou
vitfil [10]

Answer:

The expected ratio of the F_2 generation from F_1 generation will be

<u>9 "fabulous": 3 "smashing": 4 "plain" </u>

Explanation:

The expression of the phenotype will follow Mendel's Dihybrid cross.

plain→smashing

(only when allele A is present, which produces Enzyme 1)

smashing→fabulous

(only when allele B is present, which produces Enzyme 2)

Keeping the above statements in mind, in F_2 generation, only the genotypes having both A and B alleles will express phenotype "fabulous",as both Enzyme 1 and Enzyme 2 are required for that. The genotype having at-least one A allele and no B allele will produce the phenotype "smashing", as Enzyme 1,produced by allele A, will convert "plain" into "smashing". Hence, the dihybrid cross will as in the attachment.

4 0
3 years ago
Which macromineral plays a role in energy production through its role in the breakdown of all three energy sources (carbohydrate
umka21 [38]
Phosphorus because it is an energy source and breaks down carbs proteins and. Fats
7 0
3 years ago
Read 2 more answers
The festival site is the shoreline. What kind of complement is the word in bold? Predicate nominative objective complement direc
slamgirl [31]

ANSWER IS IN THE PICTURE :)



7 0
3 years ago
Read 2 more answers
In Activity A, you explored photosynthesis in a pond. The dissolved oxygen in a pond is
Anon25 [30]

Answer:

Photons

Explanation:

Photons are the only source of energy for photosynthesis. Photons are absorbed by chlorophyll molecules within Photosystems I and II (and antennae complexes), generating higher-energy ‘excited’ states of the photosystems which can carry out energetically costly chemical reactions.

5 0
3 years ago
Read 2 more answers
What two words best describe bacterial reproduction? Why?
Vadim26 [7]

Answer: Bacteria reproduce through a process called binary fission. During binary fission, the chromosome copies itself, forming two genetically identical copies. Then, the cell enlarges and divides into two new daughter cells. The two daughter cells are identical to the parent cell.

Explanation:

4 0
2 years ago
Other questions:
  • Egg laying land animals have evolved to produce eggs with tough shells to ensure that
    10·2 answers
  • Illustrate the position of the Earth, Moon, and Sun during a lunar eclipse. You may do so by typing the words or by drawing and
    15·1 answer
  • A person is found dead by a neighbor.What career is involved in notifying the police and calling an ambulance
    5·1 answer
  • I need help on a science question
    6·1 answer
  • Why do body cells in plants and animals have an even number of chromosomes?
    11·1 answer
  • which of the following was most likely not present in creating the amino acids of early Earth's waters of the past? A:Nitrogen B
    15·1 answer
  • Signal transduction is part of a cell\'s response to an external signal. although signal transduction pathways can differ in the
    5·1 answer
  • 9) In a typical food chain, about what percentage of energy is passed on to the next trophic level? A) 1% B) 10% C) 20% D) 40%
    15·1 answer
  • The four main types of tissues of animals are: muscular, which is in _____; nervous, which is in _____; epithelial, which is in
    9·2 answers
  • Carnivorous plants example .pls I need it now . I will mark brainlest.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!