The Aortic valve opens when left ventricular pressure exceeds aortic blood pressure.
The pulmonary valve and aortic valve, two one-way valves that divide the ventricles from the main arteries, are known as semilunar valves. The pulmonary valve divides the right ventricle from the pulmonary artery, while the aortic valve divides the left ventricle from the aorta.
when the semilunar valves open and the ventricular pressure surpasses the arterial pressure, they are injected into the major arteries. However, arterial pressure rises when the ventricles relax.
The semilunar valves close due to ventricular pressure. Because of the increased pressures in the seal semilunar valve, the aorta, and the pulmonary artery force the flow back toward the ventricles.
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Recessive traits are...
visible in the organism's phenotype as long as TWO recessive traits are present.
visible in the organism's phenotype as long as ONE recessive trait is present.
The picture below shows four locations and their temperatures. The temperature in each location is given in Celsius. Answer the question using what you know about heat transfer and how it ALWAYS travels.
Answer:
en español por favor
Which is NOT a part of a bivalve?
A. mantle
B. mouth
C. radula
D. shell
Answer:
radula
Explanation:
Tommy’s dad is teaching him how to make tables out of tiles. Tommy makes a small table that is 3 feet wide and 4 feet long. How many square foot tiles does he need to cover the top of the table? How many feet of decorative border material will his dad need to cover the edges of the table? I need area and perimeter
Answer:
pues búscalo en internet y vas enserar lo más importantes
PICK ONE ONLY FOR EACH ONE
1) harry potter, maze runner, divergent
2) blue, black, purple
3) Football , Basketball, soccer
4) pizza , tacos , soup
Answer:
divergent, black, football, tacos
Explanation:
What leads to variation in a population?
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Explanation:
how would you make an extract of a food to test for reducing sugar
Sister chromatids are ____.. Single choice.
A. dense patches within the nucleus
B. bacterial chromosomes
C. joined strands of duplicated genetic material
D. prokaryotic nuclei
Option 2
Please hellppppp!
Answer:
C- joined strands of duplicated genetic material
Explanation:
key words duplicated sister
Why is clay like a stem cell? *
a. Clay is made of particles just like a stem cell
b. Clay can be made into anything (like a cup or a figurine) just like a stem cell can become different types of cells
c. Clay is not at all like a stem cell
Answer:
B. Clay can be made into anything (like a cup or a figurine) just like a stem cell can become different types of cells
Explanation:
Which organelle is the location where mRNA is translated into a protein?
Answer:
its ribosomes. In eukaryotes, mature mRNA molecules must leave the nucleus and travel to the cytoplasm, where the ribosomes are located.
Answer:
ribosomes
Explanation:
what is the function of mitosis?
Answer:
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.
Explanation:
Hope it is helpful....
a nerve blank is an electrical signal that flows through the nervous system
Answer:
A nerve is a collection of cells that send messages to your brain, this signal is chemical energy a nerve blank however can be an alternative name for this.
Explanation:
inherited traits are governed controlled by
Twenty years after his voyage to the Galapagos, what did Darwin identify as the creative force driving the evolution of species?
Darwin discovered many animals but he observed finches(a type of bird) with unique beaks.
Which process involves starting with a DNA message and ending with mRNA?
a. replication
b. transcription
c. translation
d. translocation
Can you please help me?!❤️
Answer:
A. Strainer
Explanation:
A strainer is, amongst other things, something used to wash foods like fruits, vegetables, &tc and rinse out certain foods, like rice.
What happens when you put something through a strainer? When you wash something with it, the dirt goes through but not the food, like in the image, right?
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How can a material at a certain temperature have all of its molecules at the same energy?
I need help with 1,2,4,5,6, and 7. I already did 3 :)
Answer:
Answers, in order:
40, Temperature steeply decreases, 2, Effect decreases steeply, 5 and 9, 10
air passes from the nose into the bronchi true or false?
Answer:
True
Explanation:
The right lung has 3 sections called lobes and is a little larger than the left lung, which has 2 lobes. The bronchial tubes divide into smaller air passages called bronchi. The functioning of the lungs is discussed in detail.
Need help
The photograph shows a consequence of air pollution.
Which of these was most likely the cause of the effect shown in the
photograph?
A. Eutrophication
B. Acid deposition
C. Ozone depletion
D. Bioremediation
The most likely cause of the effect shown in the given photograph is Acid deposition.
What are the causes of Air pollution?
The causes of air pollution include excessive burning of fossil fuels, industrial emissions, carbon emissions from automobiles, construction and industrial wastes, etc.
Acid deposition may be also known as Acid rain. It includes the form of precipitation with several acidic components like nitric acid and sulfuric acid.
These precipitations finally falls on the earth from the atmosphere in the form of rain, snow, fog, etc., and are deposited on tall trees, buildings, and objects, and lose their natural beauty.
Therefore, the most likely cause of the effect shown in the given photograph is Acid deposition.
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Answer:
Acid Depletion
Explanation:
What is bacterial conjugation?
Answer:
Bacterial conjugation is the transfer of genetic material between bacterial cells by direct cell-to-cell contact or by a bridge-like connection between two cells. This takes place through a pilus. It is a parasexual mode of reproduction in bacteriaThe nucleus acid blank copies DNA so blank can be made
Answer:
The nucleus acid Combinent copies DNA so Rna can be made
What percentage of those struck by
lightning, live to tell about it?
of every ten people struck by lightning, nine will survive and tell the tale.
how does understanding cell reproduction allow scientists to generate organs and tissues in the laboratory.
In a herd of beef cattle, the average yearling weight of all animals was 800 lb when corrected to a bull basis. Bulls and heifers kept for breeding weighed 1000 and 825 lb, respectively. The progeny of those individuals selected for breeding had an average yearling weight corrected to a bull basis of 845 lb. What is the apparent genetic control of the trait
Answer:
Explanation:
The trait is genetic and not dependent on environment. When a trait is dependent on the genetic component of the parental generation, the ability of the traits to be passed from a generation to another is high and this will be revealed in their resemblance with the parent. Hence, the case of the offspring with an average weight of 845lb.
If the trait is controlled or influence by the environment there will be a difference when the offspring is produce because until the same environment is given to the offspring the trait cannot be expressed.
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which population is most likely to increase as a result?
A. deer
B. mouse
C. owl
D. Hawk
Answer:
A. Deer
Explanation:
cause only mountain lions eat deers. without them theyll increase.
8.What attaches muscles to bones?
veins
tendons
ligaments
joints
6. How does biogeography explain how anteaters evolved on many continents?
Why is writing on word better than writing on a sheet of paper?
Answer:
because on paper your hand wrighting is bigger and you go through more sheets and on word it has auto correct and auto save and suggestions
Explanation:
can i have brainlyest
Answer:
Writing in Word is more convenient
Explanation:
Word has a host of text, correction software it suggests proper grammer and spelling and can format your doucument.
How many electrons surround the
nucleus of an atom of Carbon?
Answer:
it has 2 atoms of carbon
Explanation:
Answer:
There are 6 electrons in a carbon atom.
Explanation: