1. Air enters the nostrils.
2. Air passes from the trachea to the bronchi
3. Air diffuses from the alveoli to the blood cells.
4. Oxygen enters the blood cells.
5. Blood transports oxygen to other cells.
The typing of human blood is determined by three alleles: A, B, and O. Alleles A and B are codominant to one another and O is recessive to both alleles, A and B.
AA/ AO – type A blood, AB – type AB blood, BB/ BO – type B blood, OO – type O blood.
A woman who is homozygous for type B blood marries a man who is heterozygous for type A.
What is the genotype ratio of their offspring?
What is the phenotype ratio of their offspring?
Answer:
genotype ratio = 1AB:1BO
phenotype ratio = 1 type AB blood: 1 type B blood
What is scientific learning?
Answer:
Scientific literacy means that a person can ask, find, or determine answers to questions derived from curiosity about everyday experiences. It means that a person has the ability to describe, explain, and predict natural phenomena.
Stars are powered by nuclear fusion reactions. please select the best answer from the choices provided t f
Answer:
That statement is true, all stars are powered by a form of fusion.
The __________ and __________ of a cell can sometimes tell you about its job.
Answer: The Shape/Structure and The nucleus
Explanation: Hope this Helps!
HELPPP ASAP!! A population of skunks lives in a woodland habitat. The skunks are unable to leave the habitat because of a large mountain. Describe two reasons this population is not at Hardy-Weinberg Equilibrium.
Some of the conditions are there that must be met for a population or an allele to be in Hardy-Weinberg equilibrium equation are:
1. The population of species must be very large.
2. There must be no migration and population must be isolated in a species.
3. There must be no mutations in a population of species.
4. There must be random mating, which means there are no mating preferences.
So, a population will not be according to Hardy-Weinberg Equilibrium if it is small, or there are , which is not raised, but mutations are expected to occur in future. Skunks can also migrate to another region of a woods despite the presence of a large mountain. As a result of possible mutations and migrations, the population is not in Hardy-Weinberg equilibrium.
For more information regarding Hardy-Weinberg Equilibrium, visit:
https://brainly.com/question/3406634
#SPJ1
The development of a new experimental method is most likely to change a theory if it makes it possible to
analyze samples when they are frozen.
perform the experiment in a different lab.
obtain and analyze results more quickly.
study a larger sample size than before.
The development of a new experimental method is most likely to change a theory if it makes it possible to study a larger sample size than before.
What is a theory?A theory is a scientific explanation of a phenomenon which is backed by strong experimental results.
We know that science is dynamic and theory changes with increasing evidence. Hence, the development of a new experimental method is most likely to change a theory if it makes it possible to study a larger sample size than before.
Learn more about theory:https://brainly.com/question/14543764
#SPJ1
Answer:
IT IS DDDDDD study a larger sample size than before.
Explanation:
ONEDGE 2023
does anyone know how to do this ? You are a bio-researcher on the planet Tawniwani, and you have been given the task of identifying and classifying the native fauna. Use this dichotomous key to identifyTawniwanian creature t.
A dichotomous key is a classification tool used to identify organisms based on morphological or behavioral characteristics. Individual C is a Roundus tricurlus.
What is a dichotomous key?
A dichotomous key is a significantly useful tool to classify organisms.
If you have an organism -or part of it- and you need to taxonomically identify it, you use a dichotomous key.
The key provides an easy and fast way for identification by describing different morphological or behavioral traits, leading you to the correct taxonomic classification.
The term dichotomous refers to how information is provided.
You will always have two options per feature (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.
Once you choose one of the options according to your organism, the key leads you to the following description, and you will have to choose one of the options again.
You will repeat this until you reach the name of your organism.
The key describes only specific traits that are useful for differentiation.
In the exposed example, for instance, we need to know the name of the individual C.
Step 1The first description is about the head size. The key asks you if the individual has a small or a large head. It has a small head, so the key tells you to move to description 2.
1a. Has a small head--------------------------- go to 2
1b. Has a large head--------------------------- go to 3
Step 2The second description is about the body shape. The key asks you if your organism has a narrow or a rounded body. And this individual has a rounded body, so the key tells you to move to description 7.
2a. Has a narrow body ------------------------ go to 6
2b. Has a round body -------------------------- go to 7
Step 3The seventh description is about antennae. Does your individual have curly or straight antennae? It has curly antennae. You have reached your organism's name. It is a Roundus tricurlus.
7a. Has a curly anteanne ------------------------ Roundus tricurlus
7b. Has a straight antennae--------------------- go to 8
Individual C is a Roundus tricurlus.
You can learn more about dichotomous key at
brainly.com/question/2235448
brainly.com/question/16522014
brainly.com/question/18335862
#SPJ1
PLEASEE help fast!!!!!!!
Answer:
I think its fourth one
Explanation:
4 th one only guess
The study of blood, which is a group of similar cells that have a common function, would be an example of ______.
Histology is the study of blood, which is a group of similar cells that have a common function.
What is blood?Blood is a connective tissue that contains cells known as red blood cells, while blood cells, and platelets, and is responsible for transport of different substances, is referred to as blood.
The study of blood is histology.
Thus, the answer is histology.
For more details regarding histology, visit:
https://brainly.com/question/10865552
#SPJ1
Which sentence describes a river?
A. It contains water that is always in motion.
B. Many unusual organisms live there due to its unique water
chemistry.
C. It protects land from flooding by absorbing the force of ocean
storms.
O D. As sediments build up, it can turn into a marsh.
Answer:
I believe the answer is A; It contains water that is always in motion.
Explanation:
What does repetition, reproducibility, precision, accuracy, and replication mean?
Repetition
the act of something repeating over and over again.
Reproducibility
the rate or amount of which an organism is able to reproduce.
Precision
with excessive intent to perfect an action.
"The cake must be iced with precision."
Accuracy
the ability to be accurate; the amount of how accurate something is.
"Archery requires accuracy."
Replication
the act or rate of which an object is copied.
What are the benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings?
All options above are potential benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings.
What are native species?Native species are species that evolved in a particular environment and therefore they are well adapted to it.
Native plants are well know to be more adapted to survival and do not need extra watering to survive.
In conclusion, all options above are potential benefits of planting only native species when implementing rain gardens, no-mow native meadows, and/or tree plantings.
Learn more about native species here:
https://brainly.com/question/20618392
#SPJ1
Which is the genotype of the sweet pea? heterozygous dominant heterozygous recessive homozygous dominant homozygous recessive
Heterozygous dominant is the genotype of the sweet pea. thus option A is correct.
What do you mean by genotype?The genetic foundation of a certain trait is called an organism's genotype. While an organism's phenotype refers to its outward appearance.
When an organism has two copies of the same dominant allele, it is said to be homozygous dominant.
The identical recessive allele is present in two copies in a homozygous recessive organism.
An organism is said to be heterozygous if it possesses both the dominant and recessive alleles of a gene.
Learn more about genotype here:
https://brainly.com/question/12911830
#SPJ1
Which is the genotype of the sweet pea ?
A. heterozygous dominant
B. heterozygous recessive
C. homozygous dominant
D. homozygous recessive
Answer: C. Homozygous dominant
I just took the test
Identify the importance of carbon
What are the structures in the nucleus that contain dna?.
"Chromosomes" are the structures in the nucleus that contains the DNA
A cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result due to incomplete dominance. then, two of the purple offspring are crossed. what proportion of the offspring from the second cross will be purple? 1 in 4 2 in 4 3 in 4 4 in 4
The expected proportion of purples individuals in the F2 of a heterozygous cross (purple phenotype) is equal to 2 in 4.
What is a Punnett square?A Punett square is a diagram used to estimate the genotypic and phenotypic proportions in a given cross.
In this case, purple individuals (Aa genotype) will be:
A a
A AA Aa
a Aa aa
In conclusion, the expected proportion of purples individuals in the F2 of a heterozygous cross (purple phenotype) is equal to 2 in 4.
Learn more about Punnett square here:
https://brainly.com/question/3522181
#SPJ1
Answer:2 in 4
Explanation:
I got it right on edge
Can anyone help me with this?
Which of the following are examples of structural adaptations?
A. migration, hibernation, instincts, being nocturnal
B. body color that helps camouflage, body covering like scales, armour, thick coat of fur, beak, claws
C. making venom, secreting slime, digestive enzymes, and altering the immune system.
Answer:
B
Explanation:
Structural adaptations are the physical features of an organism which helps it to survive and succeed in its environment.
=============================================================
Examples are :
⇒ body color that helps camouflage
⇒ body coverings like :
scalesarmorthick coat of furbeakclawsWhich of the following has had the greatest economic consequences for agriculture in recent years? (4 points)
Irrigating land
Intense storms
Melting ice caps
Overfishing oceans
One of the greatest economic consequences of agriculture in recent years is overfishing.
Economic consequences of agricultureAgricultural activities have led to overfishing.
Overfishing leads to a reduction in fish biodiversity and the loss of important species that could serve as food, drugs, or industrial materials for the use of man or his livestock.
Overfishing means that there will not be enough fish for humans in the nearest future. This may result in a malnourished human population.
Overfishing can also cause ecological problems such as disruption to food chains.
More on effects of overfishing can be found here:https://brainly.com/question/20166898
#SPJ1
1500-
NA
4) What directions is Star Creek flowing? How do you know?
Answer:
Star Creek is flowing from East to West, that is because the creek is small and has just begun to form as an extension of the Cayuta Creek.
Explanation:
What is an advantage of using a smaller contour interval
The answer is
The advantage of using smaller contour interval is that you can see the detail of mountain.
A smaller contour interval is used for showing small details .A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map
Learn more things about advantage of smaller contour interval
https://brainly.com/question/20338060
identify structure one and describe its main function.
identify structure 3 and describe its main function.
30 POINTS
Answer:
number 3 is the central vacuole and its large, membrane-bound organelles found in plant cells that act as a storage space for water and other molecules in the cell
Explanation:
Answer:
3. Vacuole
Explanation:
Plant vacuole is a membrane (tonoplast) bound space which contains sap, water, excretory products and other materials (which are not useful for plants).
It occupies 90% of the volume of the plant cell. Tonoplast, in plants facilitates transport of ion into the vacuole (against the concentration gradient) which causes higher ionic concentration in vacuole than in the cytoplasm.Some other points:-
Amoeba have contractile vacuole for osmoregulation and excretory purposes. Some protists develop food vacuoles by engulfing food particles.Bill was really ill. he had salmonella food poisoning, which means he had __________, abdominal cramps, headache, vomiting, and diarrhoea. what main symptom of salmonella is missing from the list?
Answer:
Fever
Explanation:
Symptoms can last for seven days
Six hours to six days after infection, symptoms typically appear and continue for four to seven days. On the other hand, some people feel symptoms for a few weeks after infection, while others do not.
What cause salmonella to food poisoning?Infection with salmonella is typically brought on by ingesting raw or undercooked meat, poultry, eggs, or egg products, as well as by consuming unpasteurized milk.
The incubation period—also referred to as the latency period—can last anywhere from six hours to six days.
In addition to causing diarrhea, the acute inflammatory reaction can result in mucosal damage and ulceration. The germs have the potential to spread from the intestines and result in systemic illness.
Diarrhea, fever, and cramps are the most common symptoms of Salmonella infection.
Therefore, Symptoms can last for seven days.
Learn more about salmonella here:
https://brainly.com/question/12926970
#SPJ5
Some jet airplanes fly in a layer of the atmosphere
where temperature generally increases with altitude
what is this layer of the atmosphere?
Answer:
the stratosphere
Explanation:
jet airplanes fly in a layer of the atmosphere close to earth namely the stratosphere
Humans need oxygen to be able to perform cellular respiration and gain ATP energy for our cells. What would happen to the oxygen levels on Earth if photosynthesis stopped
Carolyn and ken are learning about the geosphere, atmosphere, biosphere, and hydrosphere. they put sand in a small swimming pool. they dug a hole in the middle and filled the hole with water. they turned a fan on and watched how the water and sand changed.
Answer: Hope this helps!
Explanation:
In the diagram below, what part of the excretory system is labeled C?
A. Bladder
B. Kidney
C. Urethra
D. Ureter
The part of the excretory system is labeled C is bladder.
What is the bladder?The bladder is a flexible organ, with muscular walls, located in the pelvis. Its main function is to store urine before it is eliminated from the body. Urine is produced by the kidneys and conducted to the bladder through the ureters. During urination, the muscles of the bladder contract and urine is eliminated through the urethra.
so in this case, the image above deals with the urinary system where the marked part is the bladder.
See more about urinary system at brainly.in/question/7744704
#SPJ1
Explain how our body systems work together to get oxygen into and around our body.
Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which factor are the species of birds responding to in the environment?
a.) symbiosis
b.) competition
c.) parasitism
d.) omnivores
Competition factor are the species of birds responding to in the environment. Thus, the correct option is B.
What is competition?If numerous bird species eat on the same tree species, there will be fierce competition for food. As a result of the competition, each species will seek out a certain portion of the plant to feed on, most likely the part of the plant where it will be easiest to outcompete the competitors for food.
As a result, we may deduce that the right response is "They have evolved to diverse niches as a result of competition."
For more information regarding competition, visit:
https://brainly.com/question/15525466
#SPJ1
Answer:
simply jus competition
what change do you observe in three seed if you use boiled and cooled water of tap water in breaker
Identify the technique that the scientists used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes
The techniques used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes are gene editing (CRISPR/CAS9) and gene splicing.
What is CRISPR/CAS9?The CRISPR/CAS9 tool is a genome editing system used in molecular biology laboratories to insert genetic sequences.
The CRISPR/CAS9 system has a high specificity to make genetic modifications in the laboratory.
In conclusion, the techniques used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes are gene editing (CRISPR/CAS9) and gene splicing.
Learn more about CRISPR/CAS9 here:
https://brainly.com/question/22549100
#SPJ1