Polygenic inheritance occurs when a trait is controlled by several pairs of genes, traits such as skin color and height in humans are the result of it.
What is polygenic inheritance?It is used to refer to the inheritance of quantitative traits that occurs when a character is due to the action of more than one gene that may also have more than two alleles.
That is, it occurs when a characteristic is governed by two or more sets of alleles, there are traits, such as weight, skin color, height, which are governed by the cumulative effect of many genes.
Therefore, we can conclude that polygenic inheritance occurs when a trait is controlled by several pairs of genes, traits such as skin color and height in humans are the result of it.
Learn more about polygenic inheritance here: https://brainly.com/question/12538425
How common are food spoilage microorganisms? Multiple Choice A few of our foods contain them. Almost none of our foods contain them. Almost all of our foods contain them. They are extremely rare.
Answer:
almost all of our food contain them .so answer is option C
Explanation:
Almost all of our foods contain food spoilage microorganisms.
What are food spoilage microorganisms?When there is an unpleasant change in the meal's usual state, food spoiling develops. This could be a modification to the way the meal looks, feels, tastes, or smells. The usual culprits for spoilage are bacteria, molds, or yeasts. The appearance of green fuzzy spots on a piece of bread is a classic sign of rotting.The most common bacteria linked to spoiling include Lactobacillus spp., Carnobacterium spp., Lactobacillus spp., and Brochothrix thermophacta. The primary spoilage organisms in cultured foods like yogurt, sour cream, and buttermilk are yeasts and molds. Butter can become spoiled by yeasts, molds, and Pseudomonas bacteria. Butter is more prone to surface mold growth than bacterial deterioration because of its high fat content and low water activity.learn more about food spoilage microorganisms here: https://brainly.com/question/17966536
#SPJ2
.
Which of the following natural disasters is MOST likely to result in a narrow path of destruction through a forest?
a flood
a tornado
a hurricane
an earthquake
Answer:
a tornado i think if not i dont know
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called __________.'
Answer:
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called neurotransmitter.
Wheat crops are grown in a field. The seeds are genetically identical. Which of the following is the most likely effect of planting an entire field with these seeds?
The original source of genetic variation that serves as the raw material for natural selection is:.
Answer:
Mutation
Explanation:
3. A body is found abandoned in a shed in the extreme August heat. The liver
а
temperature is 84.6°F. How will the heat affect the TOD prediction for this
victim?
If the normal body temperature is 98.6 F then the TOD can be calculated.
What is time of death prediction?The time of death prediction is usually based on the body temperature of the victim or the temperature of certain vital organs in the body.
In this case, we know that a dead body will loose heat at about a degree and half per hour. If the normal body temperature is 98.6 F then the TOD can be calculated.
Learn more about the TOD: https://brainly.com/question/12446045
What is a unifying feature of all animals, but is not seen outside of the animal kingdom?.
Answer:
the nature of their small subunit rRNA gene sequences is different
Explanation:
most animals have hox genes
Please help me!
Which example shows the inherited behaviors of a bird?
A. Building a nest and hunting
B. Chirping and migrating
C. Hunting for food in groups
D. Migration and building a nest
Answer:
i would say A
Explanation:
If they don't be on the nest where will they live
Answer:
D.
explanation:
The length of daylight, or changing the ratio of daylight to darkness, as well as temperature, triggers the instinct to migrate. building is learned or instinctive behavior. it is primarily instinctive.
Another thing is I got it right on my test, hope this helped!
If a sewage treatment plant malfunctions or if low-income areas lack sanitary waste disposal, raw sewage can be introduced into surface waterways. Describe one potential environmental problem or one potential human health problem that can result from the presence of raw sewage in surface waters.
The more significant problem is that raw sewage causes eutrophication, which is an expansion in the concentration of chemical elements needed for life. The natural systems on steroids. The nitrates, phosphates and other organic matter found in human waste serves as a food for algae and bacteria.
What are the effects of sewage on human health?Sewage and wastewater contain bacteria, fungi, parasites, and viruses that can induce intestinal, lung, and other infections. Bacteria may cause diarrhea, fever, cramps, and vomiting, headache, weakness, or loss of appetite.
Thus, The larger issue is that raw sewage causes eutrophication, which is an growth in the concentration of chemical components.
To learn more about human health click here:
https://brainly.com/question/1604025
#SPJ 1
What would happen to a single-celled life form if the information handed down to offspring was always copied perfectly? (Select all that apply.)
For a single-celled life form that the information handed down to offspring, we would see every generation would be a carbon copy of the one single-celled life form.This is further explained below.
To find the completion we need to know more about a single-celled life
What would happen to a single-celled life form if the information handed down to offspring was always copied perfectly?Generally, A single-celled organism, also known as a unicellular organism, is an organism made up of only one cell.
In conclusion, Every generation would be a carbon copy of the one before it.
Read more about Cell
https://brainly.com/question/2622341
If a parent cell has 20 chromosomes, how many chromosomes will each daughter cell have at the end of the cell cycle
Answer: After mitosis, the daughter cell has 20 chromosomes and after meiosis, the daughter cell has 10 chromosomes.
Explanation:
how are marine iguana and land iguana are similar? how are they different?
PLS HELP
Answer:
The marine iguana is the only lizard in the world with the ability to live and forage at sea and is endemic to the Galapagos Archipelago. There are eleven very similar subspecies, found on different islands, with those from Isabela and Fernandina being the largest. The adults are black for most of the year, however the males change colour during the mating season – with different subspecies adopting different colourations. Near Española and Floreana they are most colourful – turning bright green and red; on Santa Cruz they are red and black; and on Fernandina they become dull green and brick red. The juveniles are generally black, with a lighter dorsal stripe than the adults. During the mating season males fight for dominance over harems of females, which they will fiercely defend from rival males.
Marine iguanas are not a very agile species on land, but they are excellent swimmers – moving easily through the water as they feed on algae. Larger individuals go further out to sea and use their powerful claws to grip on to rocks in strong currents to feed, whilst the smaller ones stay inshore near rock pools, feeding on algae exposed at low tide. Due to the high concentration of salt in their diet, marine iguanas filter their blood at the nose and sneeze out the excess salt, often forming salt crystals on the snout.
Despite not being truly social, iguanas are highly gregarious – especially on cold nights when they tend to group together to conserve heat. In the morning, they bask in the sun, absorbing heat with their black scales until they have enough energy to swim out to sea to forage. Upon entering the water, their heartbeat slows to half its normal pace in order to conserve energy and allow them to feed for as long as possible.
In Galapagos
Where to see them: They can be seen in coastal regions on the islands of Isabela, Fernandina, Española, Floreana, Santa Cruz and other islets around them.
When to see them: They live on the islands all year round, with the mating season occurring between January and March. They are active during the day and spend a lot of time on rocks basking in the sun.
Threats: The introduction of cats and dogs by humans has greatly affected the numbers of marine iguanas as they predate upon the juveniles, which are poorly adapted to defending themselves against large land predators. El Niño periodically decreases the iguana population (by up to 85%), as it cuts short their food supplies. Oil spills may also have similarly dramatic effects on the population. They could also be threatened by marine plastic pollution – specifically microplastics.
Conservation: The marine iguana is protected under Ecuadorian law and is listed under CITES Appendix II. Currently, we are working with partners to assess the risk of marine plastic pollution to marine iguanas as part of our Plastic Pollution Free Galapagos programme. GCT has funded a research project investigating the population dynamics of the marine iguanas on San Cristobal as there may in fact be more than one species of marine iguana present on the
Explanation:
Unlike land lizards, marine iguanas have blunt snouts that help them feed on algae underwater. They also have flattened tails that help them swim efficiently. 4. Marine iguanas typically spend only a few minutes underwater eating but can spend up to 30 minutes at a time submerged.
When parallel light rays exit a concave lens, the light rays diverge. converge. come together. remain parallel.
When parallel light rays exit a concave lens the light rays diverge. Option A. This is further explained below.
What is ray divergence?Generally, ray divergence is simply defined as when light rays begin at a point and diverge,
In conclusion, when light rays begin at a point and spread, it is called ray divergence.
Read more about Light
https://brainly.com/question/25770676
#SPJ4
Answer:
diverge
Explanation:
edge 2022
A flower that has both male and female reproductive structures is shown.
Which statement best describes an interaction that will allow a flowering plant to reproduce by self-pollination?
The correct answer is complete flower. A flower that Contains both a male and a female reproductive structure is considered a complete flower.
What are complete flower?A complete flower is a flower that includes all the four whorls such as petals, sepals, the male reproductive structure and female reproductive structure (pistil/ carpel).
Hence it is also called as a complete or perfect flower. Petunia is a complete flower.
Thus the correct answer is complete flower, is also called as a perfect flower.
To learn more about complete flower click here:
https://brainly.com/question/15685174
#SPJ1
under what circumtances would it be advantageous to a species to have new combinations of genetic traits
Answer:
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection
Explanation:
What is the order of life in hierarchical order?
Answer:
The order of life in hierarchical order is:
atom, molecule, macromolecule, organelle, cell, tissue, organ, organ system, organisms, population, community, ecosystem, biome and biosphere.
Explanation:
A real case where RFLP was used.
Answer:
Alec Jeffreys and the Pitchfork murder case: the origins of DNA profiling
British geneticist Alec Jeffreys began working in 1977 on a technique that could identify individuals through samples of their DNA. In 1984, he and colleagues devised a way to use a newly discovered property of DNA, isolated areas of great variability between individuals called restriction fragment length polymorphisms (RFLP), for forensic identification—the original DNA fingerprint.
In 1986, police asked Jeffreys for help in finding a man who had raped and killed two girls. DNA tests exonerated the primary suspect. Through a genetic dragnet, police found the perpetrator, Colin Pitchfork, who gave himself away when he asked a friend for a substitute blood sample.
Within a year, genetic fingerprinting was making the unique molecular structures of victims and suspects visible in criminal investigations around the world. Today, RFLP-based DNA analysis is being supplanted by newer techniques of genetic identification.
Explanation: .
Which behavior is a learned adaptation? A.a baby learning how to use a fork to eat B. mating C. all behaviors are learned D.sleeping
Answer: A baby learning how to use a fork
Explanation:
are there magnetic and electric fields that will affect mars ?
Answer:
Without a global magnetic field surrounding Mars, the currents induced in the solar wind can form a direct electrical connection to the Martian upper atmosphere.
Explanation:
With a single elegant operation, the strength and paths of the currents pop out of this map of the magnetic field,” Ramstad said. Without a global magnetic field surrounding Mars, the currents induced in the solar wind can form a direct electrical connection to the Martian upper atmosphere.
100 points! And a brainlest too!
How are whales like fish?
How are whales like elephants?
What do fish and and elephants have alike?
Answer:
Fish and whales are both vertebrates, which means they both have backbones. They also live in aquatic environments. Except for a couple of species, whales live only in the ocean water. Fish, however, inhabit both fresh and salt water.
Both species live to the age of about 60. Both almost certainly remember long-past events. And individuals of both species act heroically to protect other members of their group. Like humans, whales and elephants are adaptable.
In complete sentences, summarize the relationships between population size of wolves and bunnies.
Answer:
As the wolf population grows, the pace of expansion of the rabbit population slows and ultimately declines. The wolf population grows slowly at first, then declines as the rabbit population declines.
Explanation:
Which individuals would be at a disadvantage in an area with high prevalence of malaria?.
The individuals who have purebred dominant genotype would be at a disadvantage in an area with a high prevalence of malaria.
What do you mean by Malaria?Malaria may be defined as a disease that is caused by the plasmodium parasite and may spread to the people through the bites of a female mosquito Anopheles.
Those individuals who have the genotype purebred dominant (AA) produce normal red blood cells, while the individual who has the genotype purebred recessive (aa) possess sickle cell condition. The normal red blood cells are immaculate hosts for the infection of malaria.
Therefore, the individuals who have purebred dominant genotype would be at a disadvantage in an area with a high prevalence of malaria.
To learn more about Malaria, refer to the link:
https://brainly.com/question/2685790
#SPJ1
The fastest that free falling blood can travel is
O 12. 5 ft/sec
O 25 ft/sec
O 50 ft/sec
100 ft/sec
Help me please please
3. How do you know this? (Quote some results to support your conclusion.)
When a free-moving object moves from the North Pole (90%) towards the equator (0°), it curves fro
ts intended path since:
Answer:
(3)
Explanation:
I found it on a website.
The Coriolis effect is named after Gaspard Gustave de Coriolis (1792–1843), who provided the first mathematical explanation for this apparent deflection of motion off a straight line in a rotating coordinate system.
What is coriolis effect?The Coriolis effect depicts the pattern of deflection experienced by objects traveling great distances around Earth without being firmly linked to the ground.
Several significant large-scale weather patterns are caused by the Coriolis effect. Earth's rotation is crucial to understanding the Coriolis effect. Particularly, Earth rotates more quickly at the Equator than at the poles.
Because Earth is wider towards the Equator, equatorial regions rotate at a speed of around 1,600 kilometers (1,000 miles) per hour in a 24-hour period. Earth rotates slowly toward the poles, at 0.00008 kilometers per hour.
Therefore, The Coriolis effect is named after Gaspard Gustave de Coriolis (1792–1843), who provided the first mathematical explanation for this apparent deflection of motion off a straight line in a rotating coordinate system.
To learn more about Coriolis effect, refer to the link:
https://brainly.com/question/2478442
#SPJ2
What sense organs are located on the head and in the mouth.
Answer:
Ears, mouth, eyes, nose, and tongue.
Explanation:
animal's hypothalamus can signal the pituitary gland to release the (ADH ). ADH helps regulate fluids within the body. When ADH is released, the kidneys will retain fluid due to dehydration. An animal's adrenal cortex also regulates fluids by releasing aldosterone . When aldosterone is released , the kidneys will excrete more fluid. Based on this information , what would cause an increase in the levels of ADH in an animal? Identify the animal systems that are interacting to produce this outcome .
Answer:
when there is much water in blood
Which component of a virus is injected into a cell? ribosome nucleic acid protein capsid mitochondrion
The component of a virus which is injected into a cell is nucleic acid because these are the building blocks of genetic material such as DNA or RNA.
What do you mean by Virus?A Virus may be defined as an infectious agent that can only duplicate its copy inside a host organism.
Nucleic acids are responsible for the synthesizing of genetic material which gives all the information associated with genes and gene products.
Therefore, the component of a virus which is injected into a cell is the nucleic acid.
To learn more about Nucleic acids, refer to the link:
https://brainly.com/question/16986563
Answer:
B. Nucleic acid
Explanation:
Edge '23
A protective layer that surrounds a cell and regulates what passes through it.
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.