Pulmonary valve and Aortic valve
During systole, the aortic and pulmonic valves open to permit ejection into the aorta and pulmonary artery.
What happen when ventricles contract ?When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery
Then it travels to the lungs. In the lungs, the blood receives oxygen then leaves through the pulmonary veins. It returns to the heart and enters the left atrium.When the left ventricle contracts, it forces blood through the aortic semilunar valve and into the aorta. The aorta and its branches carries the blood to all the body's tissues.Learn more about Ventricles here:
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Can someone please help. Thank you!!
What specifically makes up a protein.
Answer:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha central carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain
Explanation:
:)
Explanation:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain.
The upwelling of deep ocean currents in some areas results in _________________.
Group of answer choices
A. nutrient-rich water
B. rough seas
C. a decrease in marine life
D. flooding on the coasts
Answer:
a
Explanation:
i took this
Help!!! I’m not sure how to answer this worksheet
Answer:
ncisuzlxfbnusJZbcxnuvjszncjx bni
Explanation:
-WILL GIVE BRAINLIEST-
Describe the difference between naturally occurring radiation and man-made
radiation.
What can we say about the
kinetic energy of the particles
in this object?
A. It has very low energy
B. It has medium energy
.
C. It has very high energy
Why can the rough endoplasmic reticulum produce proteins and the smooth endoplasmic reticulum cannot?
Answer:
Because there are ribosomes attached on the surface of rER which is the site of protein synthesis whereas sER do not possess of any ribosomes.
If you have done the Genetic engineering gizmo please help me
Answer:
d
Explanation:
The farmer realizes he could sell mini-dragons as pets, but doesn't want them to breathe fire, because that would be dangerous. Suggest two parental genotypes for parents that would produce mini, non-fire breathing dragons.
Answer:
ddff and DDFf
Explanation:
From the information given:
Let DD represents the dwarf traits and FF represents the ability for the dragons to breathe fire.
Also, if dd represents the normal traits and ff represents the inability of the dragons to breathe fire.
Then; we can cross a dominant trait for dwarfism which has a heterozygous trait for fire with a recessive trait of normal and nonfire.
The two parental gametes are: ddff and DDFf
Using a Punnet Square:
DF Df
df DdFf Ddff
df DdFf Ddff
From above; we could observe that the proportion of progenitors that will be dwarf and at the same time unable to breathe fire is 50%.
Dirty or harmful substances in the environment?
Answer:
pollution
Explanation:
Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories.
Hope it helps!
can somebody help me??
Why can mRNA leave the nucleus, but
DNA cannot leave the nucleus?
A. DNA is single stranded and is too long to leave the
nucleus.
B. RNA is singled stranded, DNA is double stranded, so
RNA is smaller than DNA.
C. DNA can leave the nucleus through special openings in
the nuclear membrane.
D. DNA and RNA can both leave the nucleus.
Answer:
B
Explanation:
Your DNA is stored in a double helix formation. Which means it has two long strands and would be too long to leave the nucleus. C and A are incorrect. DNA is double stranded, so we can eliminate A. There are NO special openings in the nucleus. Only the cell membrane. C is eliminated.
Option D is incorrect because DNA is transcribed into the cell membrane, there is no way for it to leave. RNA is a single strand.
mRNA can leave the nucleus, but DNA cannot leave the nucleus because RNA is single-stranded, and DNA is double-stranded, so RNA is smaller than DNA. Thus, the correct option for this question is B.
What is DNA?DNA stands for Deoxyribonucleic acid. It may be characterized as a type of molecule inside cells that contains the genetic information responsible for the development and function of an organism. These molecules allow this information to be passed from one generation to the next.
DNA is not a single-stranded structure. While RNA is present in a single stranded form in the cell. Due to this, the double-stranded structure of DNA seems longer than that of RNA to cross the nuclear membrane in the cell. As a result of this, RNA can easily leave the nucleus but DNA couldn't.
Therefore, mRNA can leave the nucleus, but DNA cannot leave the nucleus because RNA is single-stranded, and DNA is double-stranded, so RNA is smaller than DNA. Thus, the correct option for this question is B.
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Which describes how to calculate density?
mass divided by volume
volume divided by mass
mass added tog volume
volume subtracted from mass
ОО
Genetics is the study of
A: Cell Division
B: Heredity
C: Body systems
D: Sexual Reproduction
Answer:
B. Heredity
Explanation:
Try this!
Learning Task No.
1. Give one method of preserving meat
2. How do plastics thrown in waterways cause flood?
3. What is meant by biodegradable?
4. How many colors has a rainbow have
5. Why do fisherfolks catch more fish on a new moon?
6. Which do you prefer: meat or vegetables? Why?
7. What is a balanced diet?
8. How does the deforestation affect the population of eagles?
9. Should the government implement non-smoking in public places? Why or wh
10. How can we solve the water pollution in our community?
Direction: Write R if the statement is under recall questions and BR if beyond recall questions.
Research ang subject na to
wala lang po dito
Answer:
1. By refrigerating it(You can also add salt cuz salt acts as a preservative)
2. I have no clue
3. Biodegradable is a characteristic of an object which can decompose by the nature itself
4. Seven
5. Uhhmmm?
6. Both are necessary for a healthy diet (Also you haven't mentioned which meat) Meat like fish are good but mutton or chicken's meat are not specifically bad but you should try reduce the amount you eat
7. Kinda explained that in 6.
8. Population of eagles??????? It could reduce the population of birds but not really though. Well you mi6say birds live on trees but at the same time birds are not trees, the could just go to a far away place where human habitat is low or just migrate away
9. Yes it would be good. smoking does not only ruin the person who is smoking but also the people nearby.
10. Do it yourself
What is an example of a microorganism acting in a harmful way?
a) bacteria spoiling food
b) bacteria aiding digestion
c) yeast used to make pizza crust
d) fungi decomposing waste in a septic tank
Answer:
A
Explanation:
B, C, and D are benefits. Bacteria spoiling food is very harmful to the food and to whoever eats it.
SOMEONE PLEASE ANSWER OMG
Considering that different types of cells have different rates of mitosis,
which of the following would be a correctly finish this statement? Cell
types like skin and hair are damaged and need replaced more often than
liver cells; therefore ......
Liver cells would have MORE cells doing Mitosis and Apoptosis compared to
Skin/Hair cells
Liver cells would have LESS cells doing Mitosis and Apoptosis compared to Skin/Hair
cells
Liver cells would have the SAME amount of cells doing Mitosis and Apoptosis
compared to Skin/Hair cells
Answer:
OMGGGGHHHHVGGGGGGGGG
__________ is a method of wood harvesting that clears trees in an area in two or three cuts over several years.
A)
Seed-tree cutting
B)
Parthenocarpy
C)
Shelterwood cutting
D)
Selective cutting
E)
Clearcutting
Answer: E
Explanation: clearcutting
What are some other biotic and abiotic factors that may influence the mouse and hawk populations?
Answer:
Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate.
The carrying capacity of an environment is reached when the number of births equal the number of deaths.
A limiting factor determines the carrying capacity for a species.
Which of the following is a scientific question?
How many lizards live in Paynes Prairie?
O Who is the director of the National Science Foundation?
O What stores sell my favorite flavor of gum?
How do mosquitoes affect the transmission of disease?
Answer:
How do mosquoitoes affect the transmission of a disease?
Explanation:
What is the connection between land use and biodiversity ?
Put "Sympatric Speciation" in a sentence
Answer:
A 2008 study suggests that sympatric speciation has occurred in Tennessee cave salamanders.
Explanation:
Hope this helps
Help!
Which biological molecule transports substances between cells?
A. carbohydrate
B. lipid
C. nucleic acid
D. protein
Answer:
Membrane proteins
The cell membrane is selectively permeable . It lets some substances pass through rapidly and some substances pass through more slowly, but prevents other substances passing through it at all.
Answer:
D
Membrane proteins
The cell membrane is selectively permeable. It lets some substances pass through rapidly and some substances pass through more slowly, but prevents other substances passing through it at all.
Explanation:
In this metabolic process, the enzyme RNA polymerase binds RNA nucleotides (the substrates) together by catalyzing the formation of a bond between the backbone sugar of one nucleotide to the backbone phosphate of another nucleotide. Name the metabolic process that bonds RNA nucleotides together
Answer:
TRANSCRIPTION
Explanation:
Transcription is the first process that occurs in the expression of a gene. It involves the synthesis of a mRNA molecule from a DNA template. The DNA molecule, which is located in the nucleus of an eukaryotic cell, is bound to by an enzyme called RNA polymerase in order to synthesize an mRNA molecule/strand.
RNA polymerase synthesizes a mRNA molecule using complementary base pairing rule i.e. Uracil base (U) is synthesized when Adenine (A) is read, Adenine when Thymine (T) is read, Guanine (G) when cytosine (C) is read, Cytosine when guanine is read. These nucleotide bases are then joined together via chemical bonding.
In a nutshell, RNA polymerase catalyzes the formation of a bond between the backbone sugar of one nucleotide base to the backbone phosphate of another nucleotide base in the metabolic process of TRANSCRIPTION.
Which statement best explains how the gases of the atmosphere affect the temperature of Earth?
The atmosphere today contains more greenhouse gas molecules, so more of the infrared energy emitted by the surface ends up being absorbed by the atmosphere. Since some of the extra energy from a warmer atmosphere radiates back down to the surface, Earth's surface temperature rises.
PLEASE HELP
Match the monomer to the polymer.
A.Amino acid B.glycogen
C. Nucleotide.
D.phospholipid Monosaccharide.
E.DNA
F.Fatty acids and glycerol.
G.protein collagen
Nucleotide (DNA)
Amino acid (protein collagen)
Monosaccharide (glycogen)
Fatty acids and glycerol (phospholipid)
An_____looks like a circle with two longer, flatter sides.
A) axis
B) inertia
C) ellipse
HELP please IMMA GIVE BRANLIEST
Answer:
An ellipse looks like a circle with two flatter, longer sides.
Explanation:
An ellipse is essentially a fancy word for an oval. Your answer is C!
An Ellipse looks like a circle with two longer, flatter sides. So, the correct option is (C).
What is an Ellipse?An ellipse is defined as a plane curve that encloses two focal points such that for all points on the curve, the sum of the two distances to the focal points is a constant that generalizes to a circle, which is of particular type is an ellipse with the same two center points.
An ellipse having eccentricity less than one represents the locus of points, the sum of whose distances from two foci of the ellipse is a constant value. This looks like a circle with two longer, flatter sides.
Examples of ellipsoids in our daily life are the shape of an egg in two dimensions and the running track in a sports stadium.
Thus, an Ellipse looks like a circle with two longer, flatter sides. So, the correct option is (C).
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The pedigree below is for a family that has the allele for thalassemia, a recessive genetic disorder. Which individual has thalassemia?
individual 2
individual 5
individual 7
individual 10
Answer:
Individual 10 is the answer
Explanation:
I just took the quiz on edge
Answer:
The answer is Individual 10, hope that helps.
Explanation
Because it is right on Edge
__________ is also known as zero waste.
A)
Particulate control
B)
Integrated Waste Management (IWM)
C)
Monitoring
D)
Industrial ecology
E)
Environmental justice
Zero Waste: The conservation of all resources by means of responsible production, consumption, reuse, and recovery of products, packaging, and materials without burning and with no discharges to land, water, or air that threaten the environment or human health.”
4. The nearest organ to which the heart supplies oxygenated
blood is
Explanation:
Nearest organ to which heart supplies oxygenated blood is HEART ITSELF. It is supplied through CORONARY ARTERIES.
Based on the map, what weather conditions are residents of New York currently experiencing?
Answer:
low tempatures
Explanation:
Answer:
Residents of New York are currently experiencing a low temperatures such as wet, cloudy weather.