Answer:
to study the nature and size of the image formed by a convex lens using a candle and a screen activity file
The statement that describes nuclear fission is as follows:
Starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms.Thus, the correct option for this question is D.
What is Nuclear fission?Nuclear fission may be defined as a type of nuclear reaction during which the nucleus of an atom splits into two or more smaller nuclei due to the impact of another particle with the liberation of a very large amount of energy.
Nuclear fission is a process where a heavy nucleus is bombarded through neutrons and due to this, it becomes unstable. This causes it to decompose into two or more nuclei spontaneously with equivalent size and magnitude. It involves a tremendous detachment of energy as well as the emission of two or more neutrons.
Therefore, the statement "starts when neutron slams into an atom, causing the larger atom to split into two smaller atoms" describes the process of nuclear fission. Thus, the correct option for this question is D.
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Pack ice forms when frozen
seawater
a) rises from the deep zone to the surface zone.
b) sinks from the surface zone to the deep zone
c) moves onto the land.
d) is driven together by wind and waves.
Answer:
water in or taken from the sea.
Explanation:
water in or taken from the sea. AKA C.
one reason that identical twins might show slight differences at birth is
Answer:
genetic variation and traits
what sudden illness is usually caused by a blockage of blood flow to the brain?
Which of these is a component of the atmosphere?
rock
oxygen
sediments
soil
Answer:
oxygen
Explanation:
oxygen is a gas
the others are solids and cannot physically stay in the atmos phere, let alone be part of it
Which of the following is true breeding plants if they are allowed to self pollinate a b or c
Answer:
C
Explanation:
Pensamiento que tenga que ver con la ciencia
What is the importance of reproduction in plants?
Answer:
Reproduction is important in plants to produce their progeny and to maintain its population. Plant reproduction helps to maintain its birth rate and sustain the ecosystem. Reproduction helps to acquire new variations and adapt to the environment with the most desirable characters.
Explanation:
the circulatory system and the nervous system both
The circulatory system provides your brain with a constant supply of oxygen-rich blood while your brain regulates your heart rate and blood pressure.Answer:
Explanation:
helppppp answer the question at the bottom
Yes, you should expect differences because animals use their body temperature to keep them either cool or warm from the environments they live in. You wouldn't expect a big change from an insect like a bee because the environment Isn't that warm or cold.
- If a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be?
Answer:
If 0.9% NaCl were isotonic to a cell then anything greater than 0.9% would be hypertonic. A hypertonic solution is one which has a greater concentration of dissolved solutes while an isotonic one has a similar concentration of solutes.
Explanation:
If a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be 1.0%. Thus, the correct option for this question is D.
What is a Hypertonic solution?A hypertonic solution may be defined as a type of solution that significantly has lower osmotic pressure than another solution to which it is compared. If the surrounding solution has a higher solute concentration compared to inside the cell, it represents a hypertonic solution.
According to the context of this question, if a 0.9 % salt solution is isotonic to an animal cell, then anything greater than 0.9% would be hypertonic. So, all the options except for 1.0% are lesser than or equal to 0.9%.
Therefore, if a 0.9 % salt solution is isotonic to an animal cell, then a hypertonic solution would be 1.0%. Thus, the correct option for this question is D.
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the sun helps plants transform carbon dioxide into a simple carbohydrate called
Hi! Your answer is glucose.
What exactly is glucose? It originates from Greece, where it translates to "sweet." It's a type of sugar.
Good luck on your science!
The sun helps plants transform carbon dioxide into a simple carbohydrate called glucose.
What is carbohydrate?Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats.
Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.
In the oxidation-reduction process known as photosynthesis, carbon dioxide is reduced to carbohydrates and water is oxidized.
The process by which light energy is transformed into chemical energy in the form of sugars is known as photosynthesis. Using light energy, glucose (or other sugars) are created from carbon dioxide and water, with oxygen being released as a byproduct.
Thus, the carbohydrate called glucose is formed by the reaction of sun in plants.
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2. Which statement about nuclear fission is false?
Nuclear fission is used to generate electricity at nuclear power plants.
Nuclear fission takes place in the core of stars.
Nuclear fission releases large amount of energy.
The fuel for nuclear fission is often uranium.
Answer:
"Nuclear fission takes place in the core of stars."
this statement is false
menciona las 10 razones por las cuales la educación en salud es necesaria
Answer: sie
Explanation:
where does the krebs cycle take place in the mitochondria?
Answer:
In eukaryotes, the Krebs cycle reactions take place in the mitochondrial matrix, a dense solution that surrounds the mitochondria crests: in addition to water, the matrix contains all the enzymes necessary for the biochemical reactions of the cycle, coenzymes, and phosphates.
Explanation:
PLEASE HURRY!!!
In the preparation of the Krebs Cycle
a) Glycolysis will be broken down in Pyruvate
b) Pyruvate will be transformed into Acetyl-COA
c) Acetyl-CoA will be transformed into Pyruvate
d) Ethanol will be produced
Answer:
b) Pyruvate will be transformed into Acetyl-COA
5. The human immune system is a complex network of cells and organs that evolved
to fight off infectious pathogens. Vaccines teach the immune system by mimicking
a natural infection. The influenza vaccine, contains a weakened form of the virus
that doesn't cause severe disease or reproduce very well. Human white blood cells
(WBC's ) can't tell that the vaccine viruses are weakened, so they kill the viruses.
Antibody levels start to decline over time and the influenza virus evolves very
rapidly. Why does and individual need to get a yearly flu vaccine?
Answer:
the flu virus mutates to different form so updating the vaccine is helpful
Explanation:
what is the correct sequence of steps in cellular respiration, starting with glucose?
Which of the following is a population?
Answer:
D. All of the fish, bacteria, and mammals that live in a lake (i think)
a person with an xo genotype is classified as having
Tại sao sau khi bón phân đạm cho cây ko nên ăn sau khi bón?
Answer:
PHÂN ĐẠM VÀ NHỮNG CÂU HỎI LIÊN HỆ THỰC TẾ !
- Tại sao không bón phân đạm cho đất chua?
* Giải thích: Đất chua là đất có độ pH<7 (do dư thừa ion H+), đất chua gây ra nhiều bất lợi cho việc giữ gìn và cung cấp thức ăn cho cây, đồng thời làm cho đất ngày càng suy kiệt cả về lý tính, hóa tính và sinh học . Khi bón phân đạm có chứa ion NH4+ ion này sẽ sinh thêm ion H+ theo phương trình NH4+ «NH3 + H+ ,làm tăng độ chua của đất.
- Tại sao không bón vôi và đạm amoni (NH4NO3, NH4Cl)
Comments
Explanation:
mammalian cells that are membrane-bound, circular, biconcave discs that have no nuclei at maturity are called __.
Blood cells are membrane-bound, circular, biconcave discs that have no nuclei at maturity.
What are blood cells?Blood cells are round, disc shaped cells, that constitute the blood.
There are three types of blood cells:
White blood cells (monocytes, lymphocytes, neutrophils, eosinophils, basophils, and macrophages) Red blood cells (erythrocytes)Platelets.The red blood cells help to carry oxygen to the body.
White blood cells help in immunity of the body.
The platelets involve in the process of hemostasis.
Thus, the correct option is blood cells.
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In mammals the digestive tract is made up of multiple
such as the stomach, pancreas and intestines. These all work together to form the
we use to digest food.
Answer:
The digestive system is made up of the alimentary canal (also called the digestive tract) and other organs, such as the liver and pancreas. The alimentary canal is the long tube of organs — including the esophagus, stomach, and intestines — that runs from the mouth to the anus.
In mammals, the digestive tract is made up of multiple organs such as the stomach, pancreas, and intestines. These all work together to form the alimentary canal we use to digest food.
The digestive system in mammals is a complex network of organs and structures responsible for breaking down food into nutrients that can be absorbed and utilized by the body. The digestive tract, also known as the alimentary canal or gastrointestinal tract, consists of several organs that collaborate to facilitate the digestion and absorption process.
Stomach: The stomach is a muscular organ that receives and churns food, mixing it with gastric juices containing enzymes and acids to begin the process of digestion. It plays a crucial role in breaking down proteins.
Pancreas: The pancreas is both an endocrine and exocrine gland. Its exocrine functions involve producing digestive enzymes that are released into the small intestine to further break down carbohydrates, proteins, and fats.
Mouth: The mouth is where food is chewed and mixed with saliva. Saliva contains enzymes that start to break down carbohydrates.
Esophagus: The esophagus is a muscular tube that carries food from the mouth to the stomach.
Small intestine: The small intestine is the longest part of the digestive tract. It is where most of the nutrients from food are absorbed.
Large intestine: The large intestine is shorter than the small intestine. It absorbs water and salts from food and stores waste products until they are eliminated from the body.
Rectum: The rectum is the last part of the digestive tract. It stores waste products until they are eliminated from the body.
The digestive tract is a vital organ system that is essential for the survival of mammals. It allows mammals to obtain the nutrients they need from food to stay alive and healthy.
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which of these describes the structure of a nucleic acid
c. A hydrophilic head containing a glycerol and two hydrophobic tails
Which would best be used as an index fossil?
O A. alligator bones, because they have lived a long time with relatively few changes in body structure
O B. petrified wood, because it clearly shows the parts of the wood replaced by minerals
O C. sedimentary rock, because it is found in horizontal layers created in succession
O D. trilobites, because they lived for a short period of time and then became extinct
How are the competition and the commensalism relationships similar
Answer:
Predation and Competition. Two of the main ways that populations interact with one another is by competition and by predation. In competition, individuals seek to obtain the same environmental resource. In predation, one population is the resource of the other.
Explanation:
what is the highest level of organization that ecologists study
what is the function of the mouth in the digestive system
Which one should I click ?
Answer:
the third one
Explanation:
higher concentration means more of that substance in a certain volume
Hi, I learned that an Knight anole is a invasive species in Florida. There is one on my humming bird feeder. Is it alright to leave it alone and let it drink the honey or are they too much of a threat to Florida?
Answer:
they pose a serious threat to the diversity of native lizards and birds.
Explanation:
What is the difference between distance forces and contact forces? What would be an example of each?
Contact forces involve push . Contact forces involve push, pull and friction. ... At a distance At a distance force is when two interacting force is when two interacting objects are not touching, for example: the moon and the Earth's seas. At a distance forces encompasses gravity and magnetism.
