Answer:In metaphase (a), the microtubules of the spindle (white) have attached and the chromosomes have lined up on the metaphase plate. During anaphase (b), the sister chromatids are pulled apart and move toward opposite poles of the cell.
Explanation:
Answer:
b
Explanation:
How do the light and dark reactions work together?
A. The dark reactions provide energy carriers for the light reactions.
B. The light reactions provide photons for the dark reactions.
C. The dark reactions provide photons for the light reactions.
D. The light reactions provide energy carriers for the dark reactions.
Answer:
The light reaction provides the dark reaction with nutrients, which is ATP.
In short, the answer is D:
The light reactions provide energy carriers for the dark reactions.
The light reactions provide energy carriers for the dark reactions. The correct option is D.
What is light and dark reaction?The light reaction is the first stage of photosynthesis, in which light energy is trapped to produce ATP and NADPH.
The dark reaction is the second stage of photosynthesis, in which energy from ATP and NADPH is used to produce glucose.
Thus, the correct option is D.
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13. The walls of arteries include a
____ muscle layer.
voluntary
smooth
cardiac
skeletal
Answer:
smooth
Explanation:
The walls of arteries include a smooth muscle layer.
Answer:
smooth
Explanation:
Arteries are blood vessels that guarantee the transport of blood from the heart to the different tissues of the body, thus allowing the supply of oxygen and nutrients to all cells. These vessels are quite resistant and have some characteristics that allow them to be distinguished from other blood vessels. In addition, the artery walls are composed of three layers that differentiate between themselves. One of these layers appears as a smooth muscle layer.
_______ communities lack diversity and make poor use of nutrients
A. Pioneer
B. Stable
C. Climax
D. None of the above
[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\text{PIONEER is the communities lack of}[/tex] [tex]\huge\text{diversity and make poor use of nutrients.}[/tex]
[tex]\huge\text{It can't be stable because it basically}[/tex] [tex]\huge\text{(d)efy to the changing or the rebound}[/tex]
[tex]\huge\text{Climax is the significant term in the plants,}[/tex] [tex]\huge\text{the animals , and etc. that the process }[/tex] [tex]\huge\text{can be developed from the vegetation}[/tex]
[tex]\boxed{\huge\text{Thus, the answer is: A. Pioneer}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
Answer: A. Pioneer
Explanation:
A pioneer species is the species which colonize over a land or region which was not previously occupied by any species. There is no diversity of such species. These species initiate the primary succession in a region. They are incapable of utilizing nutrients available in the environment as they are simple organisms.
Chimeras are interesting organisms that have two different sets of dna. Chimeras occur when when two different zygotes fuse to form one organism. Some chimeras have no outward symptoms,while some have two different eye colors it two different blood types what roles do mitosis and meiosis play in the process
Answer:
meiosis creates haploid sperm and an egg that fuse to form two zygotes. they then fuse together into a single embryo, and the process of mitosis allows the cells to divide. this process creates an embryo that has two different types of genetic material
Explanation:
plato answer but worded a little differently
Meiosis produces two zygotes from the union of haploid sperm and an egg. The cells might divide throughout the process of mitosis before they're fusing together to form an embryo.
What is chimeras?
An embryo with two separate types of genetic material is produced through this process.
In genetics, a chimera is a creature or tissue with at least two different sets of DNA, typically created by the fusing of numerous separate zygotes (fertilized eggs). The creature may eventually acquire organs with various chromosomal sets as it grows.
Therefore, the chimera, for instance, might contain a liver made of cells with one set of chromosomes and a kidney made of cells with a different set.
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polar bear have small ears because
Answer:
The polar bear's small ears and tail offer less surface area than large ears or tails, and help maintain body warmth. Fat. Polar bears have a layer of fat that can be four inches (10 cm) thick. Although their fur is the primary source of insulation, the fat helps keep heat in as well.
Polar bears have small ears to minimize heat loss in their cold Arctic habitat, complemented by thick fur and blubber for insulation.
Polar bears (Ursus maritimus) have small ears as an adaptation to their Arctic ecosystem. The small size of their ears serves to minimize heat loss in an environment where maintaining body temperature is critical. Large-eared animals, like elephants, need to disperse heat due to their small surface-to-volume ratio, but for polar bears, conserving body heat is more important.
This is similar to why you wouldn't find animals like wild mice, which are small and lose heat quickly, living in the poles. Additionally, polar bears have developed thick fur and a dense layer of blubber under their skin to further reduce heat loss and maintain a warm body temperature amidst icy conditions.
All of these are characteristics of the tropical rain forest except
a. lots of rainfall
b. nutrient rich soil
c. high temperatures
d. constant amoutn of sunlight
Answer:
b.nutrient rich soil
Explanation:
All of these are characteristics of the tropical rain forest except nutrient rich soil.
Starting with the atom and ending with the biosphere, record the Levels of Organization found in life.
To power the activities of the cell,
which of the following do cells use
cellular respiration to acquire?
A. energy
B. water
C. oxygen
PLZ HELP SOON
The activities of the cell are powered by cellular respiration which is the final process of the metabolic pathway to generate energy, in this oxygen acts as a final electron acceptor, hence option C is correct.
What is the process of cellular respiration?Cellular respiration is the metabolic process in which all the electrons, are finally moved into the electron transport system which generates the energy in the form of ATP.
Glucose, protein, and fatty acids are catabolized to give energy by the oxidation process, this oxidative breakdown produces electrons and protons which finally produce an electromotive force to produce ATP.
Oxygen is the final electron acceptor in this process, in some cells if oxygen is not present, another substrate acts as a final electron acceptor, but produces less amount of energy.
Therefore, option C is correct.
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Final answer:
Cells use cellular respiration to acquire energy by converting carbohydrates and oxygen into ATP, the principal energy carrier within the cell. The correct option is A.
Explanation:
To power the activities of the cell, cells use cellular respiration to acquire energy in the form of adenosine triphosphate (ATP). ATP serves as the principal energy carrier within the cell. During the process of cellular respiration, cells convert biomolecules like carbohydrates into energy. The carbohydrates react with oxygen, which is an essential reactant in this process, and as a result, carbon dioxide and water are produced alongside ATP. The ATP produced is then utilized to fuel various cellular functions, serving as the energy currency of the cell. It's crucial to understand that although oxygen is required for aerobic respiration, ATP can also be produced in the absence of oxygen through anaerobic processes like fermentation.
What happens to the body when motor neurons are injured?
Answer:
It loses muscle movement.
Explanation:
Just took a test about it on Edge. Hope this helps : )
Which of these earth spheres interacts with oceans during a hurricane?
Atmosphere
Cryosphere
Geosphere
Hydrosphere
Answer:
hydrosphere is the correct answer.
Explanation:
hydrosphere interacts with oceans during a hurricane.
The hurricane is a storm, forms over the tropical waters and called tropical cyclone.
In the lower Atlantic ocean hurricane forms over the warm ocean and the hydrosphere interacts with oceans.
The hydrosphere and atmosphere both get mix with each other which results in the high winds form of a hurricane.
Answer:
Atmosphere
Explanation:
A person receives an O allele and an A allele for blood type. What is the individual’s blood type? type A type B type AB type O
Answer:
type A
Explanation:
If a person receives an O allele from one parent and an A allele from another parent then this person will have A type blood.
Blood group of a person is decided by the presence or absence of antigen A and B & their antibodies. We have ABO type of blood group system in which A and B antigens are co-dominant i.e. if both the antigens are present on the surface of red blood cells then the person will have AB blood group because both are equally dominant.
Rest of the blood groups and their allelic combinations are mentioned as under:
A blood group → AA or AO
B blood group → BB or BO
AB blood group → AB
O blood group → OO
In the given question the person has one O allele but it is receiving an A allele also. A allele is dominant on O allele so the person will have A type blood group.
O type blood group will be exhibited by a person only when it has both the alleles as 'O'.
What type of cell reproduction has gametes?
Final answer:
Gametes have the type of cell reproduction known as sexual reproduction. They are produced through meiosis and unite through fertilization to form a diploid cell called a zygote.
Explanation:
Sexual reproduction involves two parents, and in this type of reproduction, gametes are produced and unite to form an offspring. Gametes are haploid cells that contain half the number of chromosomes found in other cells of the organism. Gametes are produced through a type of cell division called meiosis. The process in which two gametes unite is called fertilization, resulting in the formation of a diploid cell called a zygote.
Which of the following is false of the integumentary system? A. Too much UV radiation can mutate DNA in skill cells and cause cancer B. The body produces more melanin with stronger sunlight exposure C. The inner layer of the epidermis divides quickly D. Keratin is the pigment responsible for skin color
The statement which is false about the intergumentary system is option D. "Keratin is the pigment responsible for skin color."
Even though the skin color of human beings is affected y different substances, the pigment melanin is responsible for it. Melanin is produced within the skin in cells known as melanocytes and it determines of the skin color of darker-skinned humans.
For instance, the skin color of those who have light skin is determined primary by the bluish-white connective tissue placed beneath the dermis and by the hemoglobin which circulates in the veins of the dermis.
The statement that is FALSE about the integumentary system is that "Keratin is the Pigment responsible for skin color"
Further Explanation:Integumentary systemIt is one of the organ system whose functions includes regulating body temperature, retaining body fluids, eliminating waste products and also protecting the body against disease causing pathogens.
Integumentary system is composed of the skin, glands, hair, nails, and nerves.
The SkinIt is the largest organ in the body and the main part of the integumentary system.
The Skin is made up of three layers;
The Dermis The Epidermis The Hypo-dermis The EpidermisThis is outermost layer of the skin with dermis and hypodermis underneath it.
The epidermis covers the whole body and protects the deeper layers of the skin from external environment and mechanical damage.
Specialized cells of the SkinEpidermis contains some specialized cells that helps in the functioning of the skin.
These cells include;
Melanocytes
They are specialized cells which make a pigment known as melanin. The pigment is responsible for the protection of the skin from dangerous ultra-violet rays from the sun.
Keratinocytes
They are other specialized cells that give rise to a protein known as keratin.
Protein keratin is responsible making the skin tough and water-resistant
Langerhans cells
These are specialized cells whose role is detecting and fighting pathogens that may try to enter the body through the skin.
Merkel cells
Merkel cells are specialized cells that take part in sense of touch.
Keywords: integumentary system, epidermis, dermis, hypo-dermis, specialized cells, keratinocytes, kleratin, melanocytes, melanin, Langerhans cells, Merkel cells.
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Function of the integumentary system: https://brainly.com/question/1511444
Epidermis of the skin: https://brainly.com/question/11454547
Keratin: https://brainly.com/question/4435311
Melanin: https://brainly.com/question/9990924
Level: High school
Subject: Biology
Topic: Organ system
Sub-topic: Integumentary system
Complete the following analogy. Brain is to body as_____ is to cell.
Answer:
i think the answer i s mithocondira
Explanation:
the mithocondria is the powerhouse of the cell
Complete the following analogy. Brain is to body as_____ is to cell.
tissue
The heart is a muscular organ that pumps blood. Blood that contains waste materials is brought to the heart by blood vessels. This blood enters the _____ and then moves down. The presence of the______ prevents the backflow of blood inside the heart
The heart is a muscular organ that pumps blood through the circulatory system. The blood containing waste materials returns to the heart through veins, entering the right atrium and then moving down to the right ventricle. The presence of the valves prevents the backflow of blood inside the heart
Blood containing waste enters the heart through the right atrium and moves to the right ventricle, where valves prevent backflow, ensuring proper circulation. These valves, located between the atria and ventricles as well as at the exit points of the ventricles (pulmonary and aortic valves), ensure one-way blood flow through the heart's four chambers and into the arterial system.
A plant survives in a tropical rain forest. When placed in a temperate forest, it
dies within a year. What is the most likely characteristic of this plant?
O
A. The plant needs very stable weather.
O
B. The plant does not need sunlight.
O
C. The plant can stop water from evaporating.
O
D. The plant can live without much water.
Answer:
A. The plant needs very stable weather.
Explanation:
A plant survives in a tropical rain forest. When placed in a temperate forest, it dies within a year. The most likely characteristic of this plant is it needs very stable weather.
Answer:
The correct answer is option A. "The plant needs very stable weather".
Explanation:
The weather of tropical rainforests is very stable, having high humidity and temperatures that exceed 18 °C during all months of the year. A plant that is endemic to tropical rainforests and dies within a year in temperate forest most likely needs a very stable weather to survive. Temperate forest have very unstable weather, with summers that have an temperature average of 21°C and winter temperatures that are often below freezing.
How do villi help the lymphatic system?
it produces enzymes that digest fats to a usable form
ANSWER:
The correct option is C: absorb fat to be transported back to the blood stream.
The villi absorb fats and fat-soluble vitamins that are essentially required by the body.
EXPLANATION:
Villi are small "finger-like projections" which are present on the "inner lining" of small intestine. The villi increase the surface area of the small intestine so that more nutrients can be absorbed from the food that is digested. The centre of villi contains lymph capillaries and blood capillaries called lacteals. It is these lacteals that abort fats whereas the blood capillaries absorb water-soluble vitamins.How tall is the average person?
Answer:
The average height of a person depends on several factors, like gender, nationality, age, etc.
The average height for an american woman is currently 5 feet 4 inches. While the average height for an american man is currently 5 feet 9 inches.
In Peru, for example the average height for a man is 5 feet 4 1⁄2 inches while for men is 4 feet 11 1⁄2 inches.
In Noway, for man 5 ft 10 1⁄2 in and for woman 5 ft 6 in.
You can look for a List of average human height worldwide, in case you are looking for a nationality in particular.
Answer:
The average height of the human being oscillates in the 170 cm, although this number varies with the passage of time. In fact, during the last 200 years this number was constantly growing and this measure has been obtained mainly from men.
It has also been proven that the average height of a human being is between 8 and 9 cm greater than that of human beings who lived 100 years ago.
Describe the process of decomposition.
Answer:
The process by which organic substances are broken down into simpler organic matter. The process is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere.
Explanation:
Select the correct answer. Why did Mao Zedung get involved in the Korea War?
Answer:
china thought the us might take their land
Explanation:
Answer:
The answer is Mao was worried about his border with North Korea being in jeopardy.
Explanation:
Mao Zedong was characterized as the leader of the Communist Party of China and the People's Republic of China. Thanks to him the Communist Party took power in China in 1949, and involved China in the Korean War because China warned that it would react if the UN military forces crossed the border with the Amnok River, but Mao waited for the Soviet help before attacking. One of his phrases about Korea is famous: "as close as lips and teeth"
What type of molecule is fat?
Answer:
well lipids are fatty acids but they often refer to lipids as fat (macromolecule or a polymer)
Explanation: I'm a biology student
What is the maximum magnification of a compound light microscope?
ANSWER: 2,500x
The maximum magnification of a compound light microscope is 2500x
Who developed the first scientific atomic theory?
O
A. Marie Curie developed the atomic theory after she discovered
radioactivity.
O
B. Antoine-Laurent Lavoisier wrote the atomic theory while making
gunpowder.
O
C. Robert Boyle proposed the atomic theory in his book The Skeptical
Chemist.
O
D. John Dalton developed the atomic theory, which he published in
1803.
The answer is "d" he developed a theory that matter is simply composed of atoms of different weights and is combined in ratios by weight.
D. John Dalton developed the atomic theory, which he published in
1803.
What is Dalton's Atomic Theory?The first part of his principle states that all be counted are made from atoms, which can be indivisible. The second part of the idea says all atoms of a given element are equal in mass and properties. The 3rd part says compounds are mixtures of two or more exceptional forms of atoms.
The 5 atomic models are as follows:
John Dalton's atomic model: Dalton´s Billiard Ball (Solid Sphere) version.
J.J. Thomson's version: Plum Pudding version.
Ernest Rutherford's model: Nuclear model.
Niels Bohr's model: Planetary version.
Erwin Schrödinger's version: Electron Cloud version/Quantum Mode
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which is not a kingdom in the Eukarya domain
Answer:
Archaea
Explanation:
the eukarya domain has four kingdoms primarily protist,fungi,plantar and animalia
Which shows the levels of organization within an ecosystem from largest to smallest? organism, population, community, ecosystem organism, community, population, ecosystem ecosystem, community, population, organism ecosystem, population, community, organism
Answer:
Ecosystem, community, population, organism
Explanation:
Ecosystem: It is a level of organization in which different communities of different organisms along with their related abiotic factors, interact with each other.
This is a level of organization smaller than a biosphere and a biome.
Community: It is a level of organization in which different populations interact with each other while living with each other. It is a level below ecosystem but above population.
Population: A group of organisms that belong to same specie and can interact with each other to produce fertile offsprings.
It is a level below ecosystem and community but above organism.
Organism:
A living organism that is made up of organs and organ systems. This is a level below population.
Hope it helps!
Answer:
c
Explanation:
What happens to the products of the Krebs cycle?
A: Most become reactants in the electron transport chain.
B:They are stored in vacuoles and removed from the cell.
C:Most become reactants in protein synthesis.
D:They are released into the cell cytoplasm.
Answer: D:They are released into the cell cytoplasm.
Explanation: Krebs cycle also known as the citric acid cycle or the TCA cycle is a biochemical reaction utilized by all aerobic organisms. Krebs cycle cannot directly produce significant chemical energy which is adenosine triphosphate. The cycle Instead, produces NADH and FADH2 which are electron carriers, which then enters the respiratory cycle.
It is the major aim of the Krebs cycle to synthesis the electron carriers that is released into the cytoplasm to be used in cellular respiration.
The Krebs cycle, also known as the citric acid cycle or the tricarboxylic acid cycle, is a central metabolic pathway in cellular respiration.
The correct option is A.
It takes place in the mitochondria of eukaryotic cells and is involved in the breakdown of carbohydrates, fats, and proteins to produce energy in the form of adenosine triphosphate (ATP). During the Krebs cycle, acetyl-CoA (produced from the breakdown of glucose, fatty acids, or amino acids) enters the cycle and undergoes a series of chemical reactions, resulting in the generation of ATP, carbon dioxide (CO2), and reduced electron carriers (NADH and FADH2). These reduced electron carriers are then used as reactants in the electron transport chain, the final stage of cellular respiration.
In the electron transport chain, the electrons carried by NADH and FADH2 are passed along a series of protein complexes, leading to the production of more ATP through oxidative phosphorylation. This process occurs in the inner mitochondrial membrane.
Hence , A is the correct option
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Asexual reproduction is also called _____.
Answer:
we hv different synonyms for asexual reproduction
Explanation:
1.Virgin birth
2.sporulation
3.agamogenesis
4.apomixis
5.fission
and so on
Answer:
Asexual reproduction is also called mitosis.
Explanation:
Can two snakes have a baby turtle? Can two turtles have baby alligators? Of course not. The ability to produce exact or close copies of the original organism is important for the continuation of life. Reproduction is an important characteristic of all living organisms. Most unicellular organisms reproduce by a type of asexual reproduction called mitosis. During mitosis, a single parent cell splits into two identical daughter cells. Multicellular organisms, on the other hand, usually reproduce sexually. A female egg is united with a male sperm during fertilization. The new organism that grows from this union has half of the father's genes and half of the mother's.
13. Some people use genetic testing before becoming pregnant to find out whether
A. their child is likely to have Down syndrome,
B. they're able to become pregnant,
C. their child is likely to be tall.
D. they're carriers of a genetic disorder,
Answer: D. they're carriers of a genetic disorder,
Explanation:
Genetic testing also known as testing of the genetic material which is DNA in humans so as to determine the diseases and disorders associated with bloodline relatives of a single individual. It studies the pedigree chart of the family of the person under consideration for this test.
It is done before becoming pregnant or the couple desire to have a child naturally. Both parents are tested and their family history of diseases and disorders is also examined so as to know the possibilities of transmission of the diseases and disorders they inherited may also get passed on to the children.
Which of the following best describes a weak base?
O
A. It only partially dissociates and produces OH ions in water.
O
B. It dissociates completely and produces Htions in water.
O
c. It dissociates completely and produces OH ions in water.
O
D. It only partially dissociates and produces t ions in water.
The base is defined as the substance that can accept the electron pair and reacts with acids to form water and salt.
The correct answer is:
Option A. It only partially dissociates and produces OH ions in water.
Weak base can be defined as:
Weak base refers to the base that does not dissociate completely in the water.The resultant water solvent will have a partial or small proportion of hydroxide ions.Examples of weak bases are ammonia, ferric hydroxide, lead hydroxide, and copper hydroxide.
Thus, the weak base is the base that partially dissociates OH ions in water.
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3. What portion of the solid waste produced in the United States is agri-
cultural waste?
Answer:
13%
Explanation:
The United States are one of the biggest producers of waste in the world. This should not come as a surprise considering that it is the country with the strongest economy, as well as having large population. The agriculture is highly developed in the United States, and while this results in high quality and high quantity of agricultural products being produced, it also creates lot of waste. The agriculture accounts for around 13% of the total solid waste produced by the United States, putting it on second place, only being behind the mining, oil and gas.