Artificial selection was used on corn to produce a single strain of corn with increased growth rates and greater resistance to a fungus. Although farmers have continued to select for these traits, the productivity of this strain is no longer increasing. This suggests that:_____________.

Answers

Answer 1

Answer:

Answer:

The natural variation for these traits has been eliminated

Explanation:

Natural variation occurs when there's a variation in the genetic and epigenetic material of a population (corn), in this case, caused by artificial selection. Since this variation is not happening anymore, this means that the genetic material is not being transmitted any longer and therefore the natural variation has been eliminated.

I hope you find this information useful and interetsing! Good luck!

Related Questions

As a galaxy gets farther away from Earth, what happens?
The ripened ovary of an angiosperm is a __________a. carpel. b. fruit. c. endosperm. d. flower.
On a blood smear slide prepared using Wright's stain, you observe a large cell with a U-shaped nucleus and pale blue cytoplasm. This cell is most likely a(n) __________. a. eosinophil b.monocyte c. lymphocyte d. basophil
Unlike endocrine glands exocrine glands A. release secretion in the blood B. is wrong C. utilize ducts to release their secretion D. include the thymus an thyroid please help me
The brain is most active during which portion of each sleep cycle? A. the beginning of each sleep cycle B. the middle of each sleep cycle C. the end of each sleep cycle D. The brain is not active during the sleep cycle.

Draw and label a typical structure of plant cell.Describe the function of all the parts of plant cell.

Answers

I think this is the answer

Final answer:

A plant cell includes a Cell Wall, Cell Membrane, Cytoplasm, Nucleus, Chloroplast, Mitochondria, Vacuole. Each of these parts play unique roles in plant growth and survival, with tasks ranging from providing structure and protecting the cell, to performing photosynthesis and producing energy.

Explanation:

A plant cell is the structural and functional unit of plants that performs various biological functions. The cell has many parts, each with unique functions.

1) Cell Wall: This is the outermost layer providing structure, support and protection to the cell.

2) Cell Membrane: It controls the movement of substances in and out of the cell.

3) Cytoplasm: It contains all the organelles and is where most cellular activities occur.

4) Nucleus: It controls cell activities and contains the genetic material DNA.

5) Chloroplast: This is where photosynthesis takes place.

6) Mitochondria: They produce energy for the cell through respiration.

7) Vacuole: It stores water, nutrients and waste products.

Every part of the plant cell plays a crucial role in plant growth and survival.

Learn more about Plant Cell Structure and Function here:

brainly.com/question/32916334

#SPJ6

How are the alleles for sex-linked traits inherited? They are passed from the Y chromosome in parents to the X chromosome in offspring. They are passed from the X chromosome in parents to the XY chromosome in offspring. They are passed from parents to offspring on the X and Y chromosomes. They are passed from any chromosome in the parents to the X or Y chromosome in the offspring.

Answers

Alleles for sex-linked traits are inherited in such a way that they are passed from parents to offspring on the X and Y chromosomes.

Generally, sex-linked traits are traits or genes that are found on the sex chromosomes only. In humans, females have XX sex chromosomes while males have XY sex chromosomes.

Thus, X-linked traits are passed from parents to offspring via the X chromosomes only. Since both males and females have X chromosomes, it means both genders can have X-linked traits.

Y-linked traits are passed from parents to offspring via the Y chromosomes only. Since only males have Y-chromosomes, it means that only the male gender can have Y-linked traits.

More on sex-linked traits can be found here: brainly.com/question/1381309

Answer:

they are passed from parent to offspring on the X and Y chromosomes

i just took this test on ed :D

3. For your organ system, describe how the system works at the organ level.

Answers

Answer: Lets take the circulatory system; a simple explanation would be that first the “arties” carry the blood from the “heart” through “blood vessels” to the “capillaries” who then release oxygen and nutrients and take carbon dioxide and the waste products of cellular respiration. When that is complete the “veins” take the blood and carry it back to the “heart”.

!Hope it Helps!

during the day, when the sun is shining, the ground gets warm mainly as a result of 1. the emission of greenhouse gasses from factories and vehicles 2.heat from Earth's core being conducted to Earth's surface. 3.convection currents in the atmosphere heating the ground. 4.radiated heat from the Sun being absorbed by the ground.

Answers

Answer: Option D

Explanation:

During the daytime when the sun is shinning bright in the sky and the sun rays reaches the earth.

The ground becomes warm by the effect of sunlight. This is because the sun radiates huge amount of heat from its surface.

This heat reaches the earth in the form of light energy. This heat is absorbed by the earth's surface and makes it warm.

4, Radiated heat from the Sun being absorbed by the ground.

Which statement describes what occurs in both animal and plant cells? A) Nitrogen is used for respiration and oxygen is a waste product. B) Oxygen is used for respiration and carbon dioxide is a waste product. C) Nitrogen is used for respiration and carbon dioxide is a waste product. Eliminate D) Carbon dioxide is needed for respiration and oxygen is a waste product.

Answers

The statement that occurs in both animals and plant cells is letter C,Carbon dioxide is needed for respiration and oxygen is a waste product. Theprocess is known as cellular respiration. Cellular respiration is the processof breaking down food such as glucose into carbon dioxide and oxygen. Duringthe process, cellular respiration also releases energy in the form of ATP(adenosine triphosphate) for use by all energy consuming activities of thecell. It is found in the simultaneous process of Gycolysis and Kreb’s cycle.Glycolysis is the breakdown of glucose to two pyruvic acids. These two pyruvicacids will be used for the production of carbon dioxide and water in Kreb’scycle.

The body loses water and salt in sweat.Explain why drinking large volumes of pain water after exercising may affect the salt balance in the body.

Answers

Answer:

The combined effect of water retention (thanks to ADH) and increased water consumption leads to an increase in blood volume and subsequent restoration of fluid balance in the body. By increasing blood volume, ADH also plays a role in reducing plasma osmolality and therefore sodium concentration.

Explanation:

Anti-diuretic hormone(ADH) helps to control blood pressure by acting on the kidneys and the blood vessels.

Its most important role is to conserve the fluid volume of your body by reducing the amount of water passed out in the urine.

Other Questions

Which process produces offspring that are better able to cope with changes in the environment?Mitosis Cell division Asexual reproduction Sexual reproduction

What takes place when you inhale and exhale ?

Scientist is studying the growth of an exponius plant. The plant has an initial height of 10cm and grows at a rate of 2% monthly Part A: Write an equation to model the growth of the plant. Part B: Find the height of the plant after 6 months.

Why does osmosis cause an animal cell to burst when it is placed in a fresh water? a) Osmosis leads to water moving into the cell.b) Osmosis leads to water moving out of the cell.c) Osmosis leads to solutes moving into the cell.d) Osmosis leads to solutes moving out of the cell.