A father has blond hair. A mother has black hair. Their three offspring have brown hair, blond hair, and red hair, respectively. Which pattern of inheritance could account for human hair color? Explain your answer.
Answer:
polygenic inheritance
Explanation:
The pattern of inheritance that could account for human hair color according to the illustration is polygenic inheritance.
In polygenic inheritance, multiple alleles (the alternate versions of the same genes) controls the trait for hair color. Individuals that inherit different combinations of alleles from the same parents will have different hair colors.
In this case, there are alleles that determines blond hairs, black hairs, brown hairs, and red hairs. All these alleles are alternate versions of the same gene. The father could be carrying blond/brown alleles and the mother is carrying black/red alleles or vice versa, their offspring will exhibit different hair color depending on which allele is dominant or recessive.
What challenges arise when trying to protect the environment? Select four options.
A)expensive clean energy startup
B)costs threat to the livelihood of many citizens.
C) negative effect on future crop yields
D)expensive to monitor fishing and tourism industries more land available for farming
Answer:
expensive clean energy startup costs
threat to the livelihood of many citizens
negative effect on future crop yields
expensive to monitor fishing and tourism industries
Explanation:
Answer:
Expensive clean energy startup costs
Threat to the livelihood of many citizens
Negative effect on future crop yields
Expensive to monitor fishing and tourism industries
Explanation:
All of these can affect the PEOPLE because two include jobs, which is the way people make money, one is the people's homes, were they live, and the other one is negative to companies because they need it to be affordable to continue with it.
Hope this helps comment who said the other answer needs an explanation ;)
Help 20 points !
*This question is of 4 marks*
So please answer long.
Q. Describe the double circulation in human beings.
Answer:Double circulation has two components, pulmonary circulation and systemic circulation. Pulmonary Circulation : It is movement of blood from heart to the lungs and back. Deoxygenated blood of the body enters the righ auricle, passes into righ ventricle which pumps it into pulmonary arch,...
Explanation:
Answer:
During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system more efficient and helps in maintaining constant body temperature. During a single cycle, the blood goes twice in the heart. This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood. Hence, this system ensures efficient supply of oxygenated blood to the muscles.
Explanation:
Hopefully this helps:)
Herbicides and insecticides can be bad for the environment. Insecticides could harm beneficial insects like bees, and both herbicides and insecticides can contaminate nearby rivers and streams.
What are some of the possible environmental benefits of GM crops?
What are some of the possible environmental problems that can be caused by GM crops?
What are some of the potential risks to humans and animals that eat GM crops?
Answer:absolutely
Explanation:
Not
Which situation is an example of nonnative species introduction?
A huge volcanic eruption in Washington destroyed many habitats.
A large oil spill in the Gulf of Mexico killed many organisms that lived there.
Horseshoe crabs in the waters of Virginia have been overfished, and their numbers have declined.
Water hyacinths from Asia now grow in the United States and are crowding out animals and other plants.
Answer:
D.
Explanation:
Nonnative species is defined as the introduction of an alien species, foreign species or exotic species to a new region and affect the native species.
The exampe of nonnative species is introduction of water hyacinths from Asia in the United States which is affecting the native species and making the ecosystem crowdy.
Introduction of non-native species can disturb the balance of an already-established ecosystem by the native species including plants and animals.
Hence, the correct option is D.
Answer:
D
Explanation:
Homeostasis can require the control of many different variables in organisms. Homeostasis regarding internal body temperature is very important for many organisms. How is this different among ectotherms and endotherms?
Answer:
The term homeostasis refers to balance, where an organism seeks to maintain the balance of the temperature of its organism in order to persist in life.
There are organisms that are considered ectotherms, with which they release heat to the external environment in order to balance said increase in temperature and not denature their own proteins (such as enzymes, structural proteins, receptors, second messengers, etc.). On the other hand, in the case of endotherms, take energy from the medium to increase your body temperature and maintain it, since otherwise you could enter hypothermia.
In the human organism these principles occur both, not simultaneously, but according to the external temperature in which the human is, ectothermic / catabolic processes in heat stages and endothermic or anabolic processes in the cold stage.
Explanation:
In simple words, endotherm is the heat taken from the medium and exotherm or ectotherm is the release of heat to the medium.
This is so simple in objects, but in living organisms these processes have a reason, and that is why we explained above, when looking for a constant temperature these processes are responsible for mediating balance.
What are some types of biotechnology??
Answer and Explanation:
There are a few different types of biotechnology.
One is medical biotech. Essentially, this branch is used to help improve the wellbeings and helaths of people. It involves a lot of DNA in helping to find cures for various diseases. Some examples of advancements in this field are vaccines and antibiotics.
Another is agricultural biotech. In the agriculture industry, farmers are continuously searching for ways to increase crop yield and quality, which delves into the topic of genetic modification and engineering. For example, scientists are breeding certain plants or adding certain genes to make offspring that is hardier and more pest-resistant.
Those are two main types of biotechnology.
How does the removal of the top predator in the food chain described affect other organisms?
The frog population will increase
The frog population will decrease
There will be no effect on the frog populaiton.
The number of grasshoppers will increase
Answer:
The frog population will increase
Explanation:
The frog population will increase because if the top predators in the food chain described affect the frog organisms that will increase
I need help please . Science ~
Answer:
Archaea Domain
Explanation:
Blood has traveled from the heart to the toes. Which describes the next step
of the circulation process?
A. The blood goes back to the heart to get oxygen.
B. The blood releases oxygen on the way back to the heart.
C. The blood goes through the liver to get oxygen.
D. The blood travels to the lungs to get oxygen.
The blood travels back up to the heart in a vein, APE.X
Describe the sequence of events during a blood clot.
Answer: Hemostasis includes three steps that occur in a rapid sequence:
Explanation: 1) vascular spasm, or vasoconstriction, a brief and intense contraction of blood vessels; (2) formation of a platelet plug; and (3) blood clotting or coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot.
or:
The Blood Clotting Process
Injury. A small tear in a blood vessel wall (for example, from a cut on the skin or an internal injury) causes bleeding.
Vessel constriction. To control blood loss the blood vessel narrows (called constriction), thus limiting blood flow through the vessel.
Platelet plug. ...
Fibrin clot.
Describe how C. parvum obtains the glucose it needs for glycolysis after it has infected another cell. Explain the role of lactate dehydrogenase in enabling C. parvum to continue producing ATP by glycolysis.
Answer:
Cryptosporidium parvum is an apicomplexan pathogen that obtains glucose either directly from its host or by the degradation of polysaccharides.
Explanation:
C. parvum only can produce ATP by glycolysis. Lactate dehydrogenase (LDH) is a universal enzyme required to synthesize pyruvate, which is the final product of the glycolysis process. This enzyme has been subject of research to understand the metabolism and evolution of apicomplexan parasites, including C. parvum.
Cryptosporidium parvum is a pathogenic agent that causes the disease cryptosporidiosis. The pathogen obtains glucose directly from the host. It can also obtain by the breakdown of polysaccharides.
C. parvum produces ATP through glycolysis. The enzyme lactate dehydrogenase is used by the C. parvum to generate metabolic ATP. It generates this ATP through the glycolytic pathway. The enzyme allows the conversion of NADH to NAD+. NAD+ is necessary for glycolysis to produce ATP. Metabolic energy plays a crucial role in the growth and proliferation of the pathogen in the host.
Some of the features of C. parvum are:
It consists of a unique lactate dehydrogenase enzyme to yield ATP. It causes the disease in the gastrointestinal tracts. The pathogen is used for research and understand its ability to obtain ATP directly from the host.Therefore, C. parvum consists of enzyme lactate dehydrogenase that helps in energy production through the glycolytic pathway.
To know more about C. parvum, refer to the following link:
https://brainly.com/question/16360264
The human
population growth
curve looks like
a -curve
population.
Please help!!!
Answer:
C
Explanation:
It shows a j looking black line.
Answer:
i think its b good luck hope u get i right
Explanation:
which is “older” the chocolate chips or the cookie dough? (Remember: older means formed first)
I need help with that question I been struggling with it and having a hard time pls help me out and is due today
Answer:
The cookie dough.
Explanation:
The dough has to be made before you can put the chocolate chips in it.
Answer:
chocolate chip
Explanation:
if light is removed from this environment the fish will eventually die explain why
Finish answering the box please
Answer:
the Soviet Union and U.S.A, Gemini VI, commanded by Mercury astronaut Wally Schirra and piloted by Tom Stafford, was supposed to have orbited on October 25, to rendezvous and dock with an Agena target vehicle. But the unpiloted Agena spacecraft blew up during launch that morning, stranding the crew waiting in their vehicle on Launch Complex 19.
the diagram shows three steps in the clotting process.
Which lists the clotting process in the proper order?
o А, С, В
ОВ, А, С
o С, А, В
е В, С, А
Answer:
В, С, А
Explanation:
The process of clotting is known as the hemostasis which takes place in three steps: the vascular spasm, the formation of a plug of platelets and the coagulation.
In the given question, step B shows the process of vascular spasm in which the vascular blood vessels becomes constricted due to injury. After this, the platelets present in the blood starts accumulating at the site of injury. These platelets stick together and form a plug-like structure at the site of injury.
Later, step A takes place that is fibrin protein present in the blood starts forming a mesh-like structure which does not allow the bleeding and this process is known as coagulation.
Thus, the selected option is the correct answer.
Why do plants has stalks that hold pollen higher in flowers???
Answer: A
Explanation: due to gravity and aliens the pollen moves upwards instead of downwards , so taht bees can better access it .
Giving Brainliest to first correct and logical answer.
Explain why Calix having X chromosomes from his mother AND father meant chromosomal rearrangement was not the cause.
Answer:
Chromosomal rearrangment was not the cause because it wouldn't lead the mass of DNA per cell in Calix to appreciate by 40fg. It also wouldn't explain how he ended up with an additional sex chromosome altogether.
Explanation:
Chromosomal rearrangement occurs when one chromosome receives additional DNA while a different chromosome is missing DNA.
Early during development, organisms as diverse as a human, a mouse, and a bat can appear indistinguishable. All of their embryos look nearly identical,
suggesting that
this is a coincidental resemblance between them
during development, humans go through stages of being a mouse and a bat
these very different species have a shared ancestry with all mammals
similar structures have developed because of convergent evolution
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Next
A person exhibiting a recessive characteristic must be heterozygous for that gene. True or False
Answer:true
Explanation: cause heterozygous means that 2 or more of offspring genes are recessive
Which of the following types of mutations does not belong with the others?
Answer:
options please
Explanation:
Theres nothing to pick from
why the relative numbers of mitochondria found in a muscle cell would be larger than the relative number found in a fat cell.
Answer:
The ATP is produced in the mitochondria using energy stored in food. ... Some cells have more mitochondria than others. Your fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.
Explanation:
Place the following terms in order from smallest to largest. Which one is the correct order :)
Answer: c
Explanation: the dna makes up the chromosome, which is in the nucleus of the cell
Answer:
I think its C. I've learned this stuff before :)
Explanation:
Explain the relationship between the loss of Arctic Ice and the sustainability of
human populations.
The loss of Artic ice is negative between human population. It will cause human population who live in coastal areas in the artic circle will have to deal with erosion on the coast lines.
what would happen to life if there were no decomposers
Answer:
The human body will smell and bring mess to the country
Drag each label to the correct location. Each label can be used more than once.
Identify the types of breezes and the areas of high and low pressure that cause them.
Answer:
There are 4 types of breezes: land breeze, sea breeze, mountain breeze and valley breeze.
The breeze will originate from an area of high pressure and travel towards/blow in the direction of the area at a lower pressure.
In each case, the name of the breeze indicates where the breeze is blowing from. For instance, the land breeze will blow from the land (at high pressure) to the sea (at lower pressure). A mountain breeze will blow from mountain (at high pressure) towards the valley (at low pressure).
Hope that answers the question, have a great day!
Choose an organism to use as an example.
Describe the organisms reproductive strategy:
discuss how this strategy is an adaptation for this organism:
Answer:
I will go with sponges :)
Sponges reproduce asexually. The parent begins budding, when the buds grow to a certain point, they break off and drift with the oceans current to a new place, settle down into the sand or rocks, and start the cycle all over again. Since sponges are stationary organisms (meaning that they cannot travel on their own.) They rely on the oceans current to spread their species across the oceans.
Answer:
I would do a Moon Jellyfish
Explanation:
Moon jellyfish reproduce during two different stages in their life cycle. During the medusa stage, they reproduce sexually by releasing sperm and eggs into the water. The method of reproduction used by jellyfish polyps is known as budding, and it does look like a plant growing a new bud for a flower. The polyp essentially clones itself. The clone buds out of the original polyp and detaches to float freely in the water.
Why do you think sundews need to capture insects?
A. The sundew is unable to make enough food.
B. The insects provide water to the plant.
C. The sundew is protecting itself from insects.
D. The insects provide nutrients that are missing from the soil.
Answer:
d
Explanation:
Some plants eat insects because they don't get enough of nitrogen from the soil and to regulate the amount of nitrogen they eat insects. These plants are called Insectivorus plants.
Answer:I think sundew is a carnivorous plant isn't it?Then it must be its nature to capture insect and eat them.
Explanation:I don't say you must have to mark my ans as brainliest but my friend if it has helped you a lot then don't forget to thank me...
how many electrons are in an atom of zirconium?
Answer:
There are 40 electrons and protons and 50 neutrons
Explanation:
