The foramen ovale is the part of the adult heart that corresponds to the fetal heart's opening between its two atria.
In contrast to adult pig hearts, the foramen ovale is not present in fetal pig hearts. Between the right and left auricle, there is a little gap that allows blood to flow freely.
The foramen shuts immediately after birth as a result of rising pressure in the heart chambers, including the cessation of placental flow, which raises right atrial pressure, and the aeration and ventilation of the lungs, which raises venous return from the lungs and raises left atrial pressures.
During fetal development, blood can flow from the right atrium to the left atrium through a hole in the heart tissue called the foramen ovale.
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14. The elements in group_
are the most reactive metals.
15. The elements in group_
are the most reactive nonmetals.
16. The elements in group_
are very unreactive.
17. The elements in group_
react very violently with water.
Answer:
14 Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.
15 The halogen group of elements is the most reactive of the nonmetals. It is also the most reactive group of all chemical elements. Fluorine is the most reactive element in this group. Halogens are highly reactive because they are all electronegative.
16 Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
17 Group 1: Alkali Metals
Group 1 elements are called alkali metals because of their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water.
What does the stamen consist of:
(Check all that apply)
A. pistil
B. filament
C. ovary
D. anther
Answer:
Filament and Anther
Explanation:
"Evolution is like a climb up a ladder of progress; organisms are always getting better." O True O False
Answer: True because In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
why are viruses not placed into one of the five kingdoms
Answer:
Viruses are microscopic organisms that are known to be the connecting link between living and non-living. These were not placed under the five-kingdom classification since they are neither living nor dead. Hence, they form their own group. Viruses are devoid of cells and cell organelles
Explanation:
Identify the true statement about antiseptics, disinfectants, and antibiotics. Select one: a. Antibiotics are frequently targeted at a specific microorganism, whereas antiseptics and disinfectants are used to eliminate multiple organisms at a time. b. Antiseptics and disinfectants are not intended for internal use, but antibiotics are expected to reach the bloodstream to be effective. c. Antiseptics, disinfectants, and antibiotics eliminate microorganisms. d. All of these are correct.
Answer:
D all of these
Explanation:
What is the relationship
Answer:
A
Explanation:
A
In this phase, two nuclear membranes are reforming and the cytoplasm starts dividing.
Answer: Cytokinesis
Explanation:
the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
Which statement correctly describes a difference between asexual and sexual reproduction?
Answer:
B) Asexual reproduction involves one parent, and sexual reproduction involves two parents.
Explanation:
In asexual reproduction, offspring formed from only one parent whereas, in sexual reproduction, offspring produces from two parents. The offspring is identical to the parent in asexual reproduction while on the other hand, offspring is different from their parents. Sexual reproduction increases the chances of survival of the species due to genetic diversity whereas asexual reproduction has limited chances of survival due to lack of genetic diversity.
Asexual reproduction involves the production of offspring without the involvement of gametes, resulting in genetically identical offspring. On the other hand, sexual reproduction involves the fusion of gametes from two parents, resulting in offspring with genetic variation.
Asexual reproduction and sexual reproduction are two different methods of producing offspring in living organisms. Here are the differences between them:
1. Asexual reproduction:
Asexual reproduction involves the production of offspring from a single parent without the involvement of gametes (sex cells). This means that the offspring are genetically identical or clones of the parent.
Examples of asexual reproduction include binary fission in bacteria, budding in yeast, and regeneration in starfish. In binary fission, a single-celled organism divides into two identical cells. In budding, a small bud grows on the parent organism and eventually detaches to become a new individual. In regeneration, an organism can regrow a lost body part and develop into a complete organism.
2. Sexual reproduction:
Sexual reproduction involves the fusion of gametes from two parents to produce offspring. Gametes are specialized sex cells, such as sperm and eggs, which contain half of the genetic material of the parent.
In sexual reproduction, the offspring inherit genetic information from both parents, leading to genetic variation. This genetic diversity is important for the survival and adaptation of species over time.
Examples of sexual reproduction include humans, animals, and many plants. In humans, sperm from the male parent fertilizes an egg from the female parent, resulting in the formation of a zygote. The zygote then undergoes development to form a new individual with a unique combination of genetic traits.
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me
1) Which of the following disease spreads through air from infected person?
Answer:
Common cold, Influenza, Chickenpox, Mumps, Measles, Whooping cough and Tuberculosis.
Explanation:
The common cold, Influenza, Chickenpox, Mumps, Measles, Whooping cough and Tuberculosis are the diseases that can spreads through air from an infected person to the healthy person. These diseases have some viruses and bacteria that is responsible for the spreading of the these diseases. These viruses and bacteria can move from one place to another through the medium of air from infected person to the person who is not infected from this disease.
name the part of the alimentary which absorbs a lot of water to produce solid waste from the food we eat
Answer:
Large intestine absorbs much water from food.It so essential for us to excrete waste products out of our body in the form of faecal matter.And main thing is water which is essential for us should not be excreted.So we get a dry faecal matter.Other wise if it fails to do a watery motion occurs
Explanation:
hope it helps
The difference between Secondary and Primary Succession is...
A. Primary only happens after a fire.
B. Secondary is starting from scratch with big rocks.
C. Secondary begins with soil, but no biotic (living) things.
Answer:
C.
Explanation:
This is because primary succession is newly formed logs that are colonized by living things. Seconday succession is there were living things there once but due to disturbance life is lost and started over which could take decades.
Answer:
C. Secondary begins with soil, but no biotic (living) things.
Explanation:
The difference between Secondary and Primary Succession is Secondary begins with soil, but no biotic (living) things.
What else should a grower do to make sure that the plants are photosynthesising at the optimum rate ?
Answer:
7 thats answer
Explanation:
PLEASE HELP ASAP
Which of the following would provide the best evidence to support the claim that acid rain has a long-term effect on the stability of ecosystems?
Extinction of aquatic and terrestrial organisms would occur, decreasing species diversity and ecosystem stability.
The mutation rate would increase and new species would evolve, destabilizing ecosystems.
The pH level would increase and become intolerable to organisms, leading to decreased species diversity and ecosystem stability.
Habitat loss would occur, forcing organisms to adapt to new surroundings until the ecosystem eventually stabilized.
Answer:
A
Explanation:
Extinction of aquatic and terrestrial organisms would occur, decreasing species diversity and ecosystem stability.
Can someone please help
What motion does the graph above show the object during the time interval from 3
seconds to almost 4 seconds?
Answer:
I am not 100% sure but my best guess would be the object is moving backwards/falling.
Explanation:
The graph shows the position of the object going from almost 9.0 to below zero. There are many situations that could fit this. Such as, something going above and below sea level. OR something moving in front and behind a certain point. My best guess would be moving backward towards an object OR falling from a certain point.
**PLEASE ANSWER!!! ILL CHOOSE BRAINLIESTT!**
Which of the following describes a mesopelagic zone?
a.) This ecosystem is in a transitional area that is influenced by the cycle between low and high tides.
b.) This zone measures from 600 to 3,000 feet below the surface, and is sometimes referred to as the “twilight zone” because of the amount of ambient light available.
c.) At the depths of 13,000 to 20,000 feet, this zone resembles a bottomless pit of complete darkness.
Answer: c
Explanation:
What are the 3 components/materials and energy needed to assemble carbohydrates?
Answer:
carbon, hydrogen, and oxygen.
Explanation:
Am I healthy? Do you think so
Maybe, haha. i dunno. why do you need to know?
☁️ Answer ☁️
U ARE SHININGGGGGG
But you shouldn't be posting ur pic on Brainly
describe various stages of mitosis
☁️ Answer ☁️
The Phases Of Mitosis
Interphase
Prophase
Metaphase
Anaphase
Telophase
cytokinesis
"Mitosis, which takes place in the cell nucleus, consists of many steps; these steps in turn, have several parts to them. The main steps in mitosis are: interphase, prophase, metaphase, anaphase, telophase and cytokinesis"
Hope it helps.
Have a nice day noona/hyung.
Which of the following is considered an ocean contaminant?
A)
sewage
B)
industrial waste
C)
fertilizer
D)
soaps
E)
all of the above
name some component of the blood that transports lactic acid
Answer:
plasma
Explanation:
the plasma circulates dissolved nutrients such as glucose, amino acids and fatty acids.
Snapdragons show incomplete dominance for the flower color trait. A cross between snapdragon plants with red flowers and plants with white flowers produces F1 offspring with pink flowers.
When an F1 plant is self-pollinated, what percentage of its F2 offspring will be expected to have red flowers
Based on inheritance laws, it is expected none of the offspring will have red flowers.
What is incomplete dominance?This occurs when a specific trait or allele is not completely expressed. In this case, the colors red and white are not completely expressed but they mix in the offspring.
What would be the dominant trait of the F2 generation?Considering the pink flower will self-pollinate, it is expected the F2 generation has exactly the same traits as the F1 generation because there are no new genes or traits being combined. This means none of the F2 offspring will have red flowers, instead all plants will have pink flowers.
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Ernest was looking at the following diagram of a cell. Which statement best explains how he should classify the cell?
A. He should classify the cell as a plant cell because it has a cell membrane.
B. He should classify the cell as an animal cell because it has a flagellum.
C. He should classify the cell as a plant cell because it has cytoplasm.
D. He should not classify the cell as either a plant cell or an animal cell.
Answer:
C
Explanation:
I believe it is C because it looks like it has chloroplasts in it
Why does increased growth of a cell lead to cell division
A. The dna would not be able to meet the needs of the cell
B. The cell is unable to efficiently move waste and nutrients across the cell membrane
C. Both a and B
D. Neither a or B
Answer:
The DNA would not be able to meet the needs of the cell. it's the answer...
Even though the Earth's Inner core is hotter than the
liquid outer core, it is still solld because -
Answer: The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid. Answer 3: It turns out that many materials can be a solid at a higher temperature if the pressure is also higher.
Explanation:
What is the relationship between a bee and flower
Answer:
Both are living organisms.
Both reproduce.
Both undergo growth and development.
Both react to changes to the environment.
Both excrete.
Explanation:
A man with heart disease lives in a family that eats a lot of red meat. Wha
to his environment?
O Analyze the patient's family history regarding heart disease
O Analyze the patient's diet to quantify cholesterol intake
O Determine the exact amount of cholesterol in the patient's blood
O Determine if the cholesterol will lead to high blood pressure
Answer:
Analyze the patient's diet to quantify cholesterol intake
Explanation:
This is because since the patient family consumed more of red meat, it should be analysed. Because researches find out that red meat either processed or unprocessed contain more protein than fish, milk, and it can raise cholesterol levels. Red meat contain high cholesterol and increaee in cholesterol levels can lead to coronary heart diseases.
Answer:
B
Explanation:
Are courgettes annuals or perennials? And why?
Answer:
Crops such as zucchinis and cucumbers are known as annuals because their natural life cycle only lasts a season.
Explanation:
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Identify the preferable tonicity of these replacement drinks (isotonic, hypertonic or hypotonic)
Answer:
isotonic [same concentration]
hypotonic [low concentration]
hypertonic[high concentration ]