Chemical reactions involve the transfer or sharing of electrons without changing the nuclei, while nuclear reactions involve changes in the nucleus, leading to different elements and the release or absorption of a massive amount of energy.
Explanation:Chemical reactions and nuclear reactions differ fundamentally in the processes and changes that occur at the atomic level. In a chemical reaction, electrons are transferred or shared between atoms, leading to the formation and breaking of chemical bonds. However, during these reactions, the nuclei of the atoms remain unchanged, and the number of atoms of each element is conserved, indicating adherence to the law of conservation of mass. On the other hand, a nuclear reaction involves changes to the nuclei themselves, which can result in the transformation of elements and a notable release of energy.
Nuclear reactions often involve the rearrangement of nucleons (protons and neutrons) within the nucleus, leading to the emission or absorption of particles, such as alpha (α) particles, beta (β) particles, or gamma (γ) rays. These reactions are accompanied by enormous energy changes, far exceeding those of chemical reactions. Nuclear reactions can lead to a change in mass that, according to Einstein's equation E=mc², corresponds to a significant release or absorption of energy. Unlike the case of chemical reactions, in nuclear reactions the laws of conservation of mass and energy are not individually valid but are combined into the law of conservation of mass-energy.
The energy changes in nuclear reactions can be observed in processes such as fission, where heavy nuclei split apart releasing energy, or fusion, where light nuclei combine to form a heavier nucleus, also releasing energy. The amount of energy involved in nuclear reactions is orders of magnitude greater than for chemical reactions, illustrating the major difference in energy scales between the two types of reactions.
Which of the following is a heterotroph?
sunflower
potato
butterfly
soybeans
Answer:
Butterfly
Explanation:
a heterotroph is an organism that cannot make its own food, and therefore relies on other organisms for sustenance.
potatoes, sunflowers and soybeans are all plants and make their own food through photosynthesis
(they are called autotrophs)
However a butterfly relies on flowering plants to provide the nectar that it consumes.
if all the flowering plants suddenly died the butterflies would most likely die as well because their food source has been eliminated.
therefore the butterfly is a heterotroph
Which of the following is a true statements about viruses?
Viruses have no nucleus.
Viruses are alive.
Viruses have a cell membrane.
All viruses are deadly.
The true statement about viruses is that they have no nucleus. Viruses are acellular entities that require a living host to reproduce and are not considered alive since they cannot maintain homeostasis or reproduce on their own.
The true statement about viruses is that viruses have no nucleus. Unlike living cells, viruses are acellular and do not have a cell membrane, cytoplasm, or ribosomes. They need a living host to reproduce as they cannot replicate outside of a host cell. Not all viruses are deadly, and while some can cause serious illness, many can be relatively harmless or cause only mild diseases.
The viral structure can be simplified as a nucleic acid (either DNA or RNA, but not both) encased in a protein coat known as a capsid, and in some cases, an envelope derived from the host's membrane with embedded glycoproteins that help the virus attach to the host cell. These characteristics make viruses unique entities on the borderline of living and non-living matter.
In terms of biomass, deep ocean habitats are similar to _____. rain forests deserts grasslands coral reefs
Answer: deserts
Explanation:
Deep ocean habitats are typically the abyssal floors which consists of very few nutrients and this region receives very low sunlight and even no sunlight this results in scanty growth of plants just like deserts. As the plant growth is scanty the animals and zooplankton population dependent upon plants is also low.
It is Deserts..................................
In human females, the process of cell division, meiosis occurs in cells of the:
Answer:
ovaries
Explanation:
In human females, the process of cell division, meiosis occurs in cells of the ovaries.
The process of meiosis occurs in the sexual organs of sexually producing organisms.
Answer:
Ovaries
Explanation:
In human females, the process of cell division, meiosis occurs in cells of the Ovaries.
This is also called oogenesis.
Which scale is used to describe the magnitude of an earthquake?
O A Mercalli scale
B. Richter scale
OC. magnitude scale
0
OD seismic scale
Answer:
B. Richter scale.
Explanation:
The Richter scale is the scale used to measure the magnitude of an earthquake. The greater the earthquake, the sharper and longer the lines and the higher the peak and lower the draught. The smaller the earthquake, the more smooth and close to a line it would be.
~
The Richter scale is used to describe the magnitude of an earthquake.
Secondary succession would most likely be taking place in a(n)
Answer:
After A Lava Flow Or Flood
Explanation:
Answer: A) abandoned field.
Explanation:
9. Based on the soil texture diagram, what type of soil is 40 percent sand, 15 percent clay, and 45 percent silt?
O A. Silt loam
O B. Loam
C. Sandy clay loam
O D. Sandy loam
Your answer would just be straight Loam
Final answer:
A soil with 40% sand, 15% clay, and 45% silt is classified as silt loam, based on the soil textural triangle. The correct option is A.
Explanation:
Based on the soil texture diagram, a soil that is composed of 40 percent sand, 15 percent clay, and 45 percent silt is best classified as silt loam. This classification is determined using a soil textural triangle, where we trace horizontal, vertical, and diagonal lines based on the percentages of clay, silt, and sand. The point where these lines intersect corresponds to the appropriate soil class. Given the provided texture percentages, they intersect within the range specified for silt loam soils, which typically have more than 50% silt and no more than 25% clay.
When one animal looks like another animal to protect itself, this adaptation is called
Answer: I believe that would be camouflage.
Explanation:
Camouflage is a defense mechanisms.
this is called mimicry. mimicry is the imitation or looking like something else like in this case. this is also because mimicry is the act of copying the sounds or behaviour of another person or animal.
plants take in the suns energy by absorbing
a. chlorophyll b.
b.chlorophyll a
c.high-energy sugars
d.sunlight
The answer is D. Sunlight
Which step is the same in both forms of fermentation, as well as in cellular respiration?
Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end. Both cellular respiration and fermentation start with glycolysis.
How fermentation, and cellular respiration, similar in some steps?Many different kinds of organisms and cells use fermentation, another anaerobic (non-oxygen-requiring) process for breaking down glucose.
Glycolysis is the only energy extraction mechanism used throughout fermentation, with one or two additional processes added at the end.
An anaerobic metabolic process that begins with the same stage as cellular respiration—the production of pyruvic acid by glycolysis, where net 2 ATP molecules are produced. Pyruvate is converted to lactic acid, ethanol, or other compounds in the following phase.
Therefore, both cellular respiration and fermentation start with glycolysis.
Learn more about fermentation, here:
https://brainly.com/question/24726049
#SPJ6
which condition allows liquid water to exist on earth
a. weak salinity
b. strong gravity
c. living things
d. freezing temps
Answer:
d. freezing temps
Explanation:
Freezing temps allows liquid water to exist on earth.
as water is cooled from 4 to 0, its density ____
As water is cooled from 4 to 0, its density "decreases." Density is the amount of substance per a specific volume. So, if the water cools it's density decreases, but as the temperature rises it's density will increase because liquid to a gas and a gas has a high density then a liquid.
Hope this helps.
Study the diagram of a desert food chain .
What would most likely happen if the kangaroo rats were killed off and removed from the food chain ?
The removal of kangaroo rats from a desert food chain could lead to an overabundance of seeds and a decline in predator populations, such as kit foxes, potentially causing a collapse of the entire food web.
If the kangaroo rats were removed from a desert food chain, a ripple effect would take place, which would influence the entire ecosystem. As consumers of seeds, the absence of kangaroo rats could lead to an overabundance of seeds. Without kangaroo rats acting as a food source for their predators, such as kit foxes, these predators might face a decline in population due to a lack of food. This can create an imbalance, potentially leading to the overpopulation of some species while others might diminish or even become extinct. As tertiary consumers lose their prey, they may starve and die, which could even lead to the collapse of the entire food web. Ecosystems are interconnected, so the removal of one species, especially a key species like the kangaroo rat, can have far-reaching consequences.
How are sex-linked traits inherited? Alleles are passed from the parents’ sex chromosomes to nonsex chromosomes in the offspring. Alleles are passed from the parents’ nonsex chromosomes to the sex chromosomes in the offspring. Alleles are passed from the parents’ sex chromosomes to the sex chromosomes in the offspring. Alleles are passed from the parents’ nonsex chromosomes to nonsex chromosomes in the offspring.
Answer:
alleles are passed from the parents sex chromosomes
Explanation:
sex linked chromosemes are found in the y and x chromosomes in the reproductive cell i.e the sperm and ovum
The right answer for this question is C - sex-linked traits are inherited through alleles, which are passed from the parents' nonsex chromosomes to the sex chromosomes in the offspring. This means that the child will have a combination of both parents' nonsex chromosomes.
Which causes a sea breeze
The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and the ocean. At night, the roles reverse. The air over the ocean is now warmer than the air over the land.
hopefully i got this right and also helped
What is a fuel body use for energy
Answer: Carbohydrates like sugar and starch are readily broken down into glucose, which is the body's main energy source. Glucose can be used immediately as fuel or stored as glycogen.
The diagram shows some of the steps in the flow of energy through an ecosystem. The arrows represent the transfer of energy. Label each arrow with the type of energy being transferred.
Answer:
Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. At the first trophic level, primary producers (plants, algae, and some bacteria) use solar energy to produce organic plant material through photosynthesis.
Explanation:
Unit 4: Ecosystems // Section 3: Energy Flow Through Ecosystems.
Your question is incomplete. please read below to find the full content.
In the diagram showing a typical food chain in an ecosystem, the arrow that connects the sun to plants represents the flow of radiant energy. The sunlight produces radiant energy, of which producers, such as plants, convert into chemical energy through photosynthesis.
The next arrow linking the plants to the rodent shows the flow of chemical energy in plants to primary consumers, such as rodents, who feed on them.
Also, rodents, when preyed upon by secondary consumers, such as wolfs and owls, pass on the same chemical energy to them. So the arrows connecting the rodent to the owl, and to the wolf both show the transfer of chemical energy from the rodent to the owl and wolf.
The next arrow shows the transfer of thermal energy from the wolf to the environment, as the wolf release heat from the body resulting from the daily functions it performs, and also, thermal energy is released to the surroundings as heat during the decomposition of the body of an animal.
The arrow linking the wolf to the decomposer which breaks down the body and waste of the wolf represents a transfer of chemical energy to the decomposer, as they break chemical bonds to obtain the energy they need to survive and grow.
Please check the attached diagram for the complete question.
Learn more about an ecosystem at
https://brainly.com/question/26551655
#SPJ2
A student found the following flowchart in a text book. Which chemical reaction best summarizes the matter and energy transfers that occur during the process shown?
Answer:
B
Explanation:
The process shown is cellular respiration
The products of photosynthesis are the inputs of cellular respiration
Therefore sugar and oxygen being converted into ATP for Cellular Respiration makes the answer B
hope that helped
Answer:
B. Sugar + O₂→ ATP + CO₂+ Water
Explanation:
The flowchart given in the question is steps of cellular respiration. It is a process which takes place all living cells. Glycolysis occurs in the cytoplasm whereas, Krebs cycle and electron transport chain occurs in the mitochnodria. In this process the respiratory substrate such as sugrar is oxidised completely in presence of oxygen to produce ATP, carbon dioxide and water.
When does the cell pinch off and divide into two daughter cells in mitosis?
During cytokinesis, cell pinch off and divides into 2 daughter cells in mitosis.
What is cytokinesis?The division of the nucleus occurs after the cytoplasm (cytokinesis) during the cell cycle (karyokinetic).
Different cytokinesis processes take place during cell division in animal and plant cells.
Animal cells undergo cytokinesis by the production of two daughter cells as the parent cell's plasma membrane pinches inward along the equator, whereas plant cells undergo cytokinesis through the formation of a cell plate.
You can learn more about cytokinesis here:
https://brainly.com/question/314066
#SPJ2
how is mitosis different in plants and animals?
A. in animals the dna is one circular chromosome
B. in plants the dna is not duplicated
C in plants a new cell wall forms to split the cell
D in animals there is no g0 phase or g2 phase
Answer: c in plants a new cell wall forms to split the cell
Yes the answer’s C.
so what’s your question?(tell me in comments)
C. In plants, a new cell wall forms to split the cell.
Mitosis is the process of cell division that occurs in both plants and animals, but there are key differences in how the process is completed.
In animals, during the final stages of mitosis (cytokinesis), the cell membrane pinches inwards, forming a cleavage furrow, which eventually splits the cell into two daughter cells. This process is possible because animal cells lack a rigid cell wall, allowing the membrane to easily bend and constrict.
In plants, however, the presence of a rigid cell wall makes it impossible for the cell to constrict in the same manner. Instead, during cytokinesis, plant cells form a cell plate in the center of the dividing cell. This cell plate grows outward, eventually developing into a new cell wall that separates the two daughter cells.
What will occur when the carrying capacity for humans is met?
A. Diseases will increase.
B. Natural disasters will increase.
C. The death rate will decrease.
D. The population will increase.
Answer:
A. Diseases will increase
Answer: A. Diseases will increase.
Explanation:
A limiting factor is the one which is potent enough to limit the growth, abundance and distribution of the population of species in an ecosystem. Carrying capacity is the maximum number of the population of species which an ecosystem can support by availing resources. If the population exceeds above the carrying capacity, it starts declining.
According to the situation given, diseases will increase is the correct option. Diseases can be limiting factor for reducing the population of humans in an area. Hence, will maintain the carrying capacity.
A mouse that is homozygous for the dominant trait has the genotype . It has . A mouse that is homozygous for the recessive trait has the genotype . It has . Image of fur color of mice
Answer:
A mouse, his homozygous dominant trait is AA which might be shows black color of fur and with homozygous recessive trait aa which might be shows brown color of fur.
Explanation:
A mouse, his homozygous dominant trait is AA which might be shows black color of fur and with homozygous recessive trait aa which might be shows brown color of fur.
If we cross, both the genotypes dominant trait is AA and recessive trait aa together, then the offspring will produce with all Aa genotypes which shows black color of fur of the mouse. Brown color is suppressed under the effect of dominant trait AA, but it may be appear in the F2 generation.
An organ that does not secrete digestive enzymes is the
a. pancreas
b. small intestine
c. esophagus
d. salivary gland
What are scattered over like pepper over the endoplasmic reticulum
Answer:
Ribosomes
Explanation:
The endoplasmic reticulum is a network of interconnected sacs and tubules distributed throughout the cytosol. There are two types of endoplasmic reticulum: smooth endoplasmic reticulum and rough endoplasmic reticulum. The rough endoplasmic reticulum is the one that has ribosomes studded on its outer surface. The presence of ribosomes gives the rough endoplasmic reticulum a rough appearance.
On the other hand, the smooth endoplasmic reticulum has a smooth outer surface due to the absence of ribosomes on it. The main function of rough endoplasmic reticulum is protein synthesis as ribosomes are the site for protein synthesis. The smooth endoplasmic reticulum is involved in lipid biosynthesis.
name three things that happen within two weeks of fertilization?
Answer:
ovulation, Hormones Rise and Egg Travels to the Fallopian Tube
Explanation:
Answer:
germination and first growth
State one way a complete blockage at location X would affect the reproductive process ? Please answer !!
Answer:
There would be no fertilization.
Explanation:
When the fallopian tube is blocked, even after ovulation (an egg released by the ovary), it will be unable to travel down the fallopian tube towards the uterus. This way, even when the sperm swim up to the tube (where fertilization of the egg usually occur) after copulation, it will be unable to meet the egg and fertilize it. There will never be conception as long as there is blockage on location X.
Which of the following is true of red blood cells?
A. They have multiple nuclei
B. Once created in bone marrow, they circulate for our lifetime
C. They live for only 120 days
D. They live for only about 20 days
Answer:
C. They live for only 120 days
Explanation:
Red blood cells are small and biconcave cells that are known for their lack of nucleus. (Rules out A) Aside form that, they also lack mitochondria and robsomes. They are created in the bone marrow and they live for about 100 to 120 days (rules out B and D) before macrophages recycle them.
Answer:
C
Explanation:
During times of stress, Yanira notices that her heart pounds a little faster than normal. What part of the brain is
responsible for her increased heart rate?
Brain stem
Cerebellum
Frontal lobe.
Occipital lobe
Answer:
Cerebellum
Explanation:
The cerebellum is a region of the brain whose main function is to integrate the sensory and motor pathways. There is a large number of nerve bundles that connect the cerebellum with other brain structures and with the spinal cord. The cerebellum integrates all the information received to specify and control the orders that the cerebral cortex sends to the musculoskeletal system through the motor pathways. It is the regulator of physiological tremor.
What drives the atp synthase reactions that produce atp
Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of BLANK 1 . The fossils tell us that polar regions BLANK 2 .
Question 1
A.) carbonization
B.) mineralization
C.) trace fossils
Question 2
A.) had a tropical plant that could grow in ice
B.) might of had a different climate in the past
C.) will have abundant vegetation
Answer:
1 A, 2 B.
Explanation:
1. In carbonization, a thin film of carbon mineral is formed on the fossils, giving them a dark black coloration, which makes us conclude that the fossils observed are an example of carbonization.
2. The presence of tropical swamp plant impressions in polar regions is an indication of a different, likely warmer climate in the past, in the polar regions, because plants commonly grow in similar conditions as their living counterparts and no tropical swamp plants are known that can live in polar regions today. Lichens that live in the tundra are not real plants.
Answer:
Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of trace fossils . The fossils tell us that polar regions had tropical plants that could grow in ice.
Explanation:
hope it helps :)