Gametes have 23 chromosomes, while other normal human cells have 46 chromosomes.
What is chromosome?
Chromosomes are threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell.
Difference between chromosomes in gamete and normal humanGametes have 23 chromosomes, while other normal human cells have 46 chromosomes.
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What happens during a claustrophobic attack?
It can trigger symptoms of anxiety ranging from mild sweating or trembling to fainting or a panic attack.
It can trigger symptoms of anxiety ranging from mild sweating or trembling to fainting or a panic attack.Common claustrophobia triggers include small rooms, elevators, closets, MRI scanners, airplanes, and other small or tight spaces.
Question 1 (Multiple Choice Worth 2 points)
(04.06 MC)
A population of mice thrive when grain and seed resources are plentiful. When food runs out, they compete with
one another for food and no longer produce offspring. This is an example of
O biotic potential
O group behavior
O individual behavior
O interspecific competition
individual behavior
Explanation:
if the mice are competing with each other that means that it's every man for himself.
The given example suggests the individual behavior of the mice because they change their behavior according to conditions.
How a population of mice affects the resources?In nature, organisms search for resources first, and if this availability is fulfilled, they reproduce themselves and increase the number of offsprings, but when the availability of resources are depleted they compete with each other.
The individual behavior of the mice in the population is defined as some mice fighting for the same resources and others mating with each other.
In the given question interspecific competition is not a right choice because it is the competition between the organism of two different species for the same resources.
Therefore, option C is correct.
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Photon energy, Wave Frequency and Wavelength are represented in the:
Photon energy, Wave Frequency, and Wavelength are represented in the Electromagnetic spectrum. Thus, the correct option is A.
What is Wavelength?Wavelength may be defined as the space between equivalent points (crests) in the contiguous cycles of a waveform movement propagated in space. It is represented as λ (lambda).
The wave frequency and wavelength are inversely related to one another, while photon energy is directly related to wave frequency, but inversely related to wavelength.
We study the association of all these terms in the unit of the electromagnetic spectrum.
Therefore, it is well described above.
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Convert this measurement, 6.410102 , from scientific notation to standard notation.
This measurement, 6.410102 , is from scientific notation to standard notation. The answer will be 6.41
What is Scientific notation?Scientific notation is a way of writing numbers in two parts:
Only the figures (with the decimal point after the first digit), followed by × 10 to the power that moves the decimal point where you should be (that is, showing how many positions the decimal point moves).
On the other hand, the standard notation is the one that is normally used for not-so-large numbers by putting one digit behind another.
Thus, The answer will be 6.41.
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How are mitosis and meiosis similar?
Answer:
B
both process chromosomes are copied
For plants living in a dry areas, explain a possible conflict between the need to obtain carbon dioxide for photosynthesis and the need to conserve water.
Plants living in dry areas face conflict.
EXPLANATION:
Since they live in dry areas they will undergo more transpiration. If they open stomata during the day there will be excessive loss of water vapor that will result in their death. Therefore plants living in this area open the stomata during the night to obtain Carbon dioxide.This checks the loss of water through transpiration and provides the carbon dioxide for photosynthesis.Abstract
Plants regularly face dry conditions. Not having enough water poses a serious threat to a plant’s ability to grow and develop or even just survive! If plants die, we will not have enough food to eat! How do plants manage to survive during water shortages? They must somehow be able to sense, respond, and adapt to changes in water availability. They do this through a range of techniques that allow for a plant to combat water shortages. A plant’s structural “armor” helps it to decrease the amount of water it loses to the environment and increase water storage. Plants respond to water shortages in very complex ways. These responses can include changes in the plants’ growth and in their ability to protect themselves against toxic chemicals that accumulate in the plant during dry periods. All of a plant’s responses are directly controlled by the plant’s genes. If we can understand the genes that are involved in protecting plants against drought, in the future we might be able to make genetically modified crops that can tolerate global warming and climate changes.
Have you heard people speaking about global warming and climate change? Do you know what these terms mean? These terms basically imply that the earth is getting hotter every year. These higher temperatures lead to unexpected and unusual weather patterns. One of these extreme weather patterns is frequent and severe droughts. Droughts are very long dry periods without any rain. What do severe droughts mean for plants? Well, plants are sessileAn organism that can’t move and stays in one place, like a plant., which means they stay in one place and can’t move around like we can. They can’t pull up their roots and relocate to a shady or damp spot. Therefore, plants somehow need to deal with these ever-increasing drought conditions, or they will simply die. Remember, plants are our food. We eat plants raw or cooked (those vegetables your mom insists you eat!) or processed, like your favorite box of breakfast cereal [which is made from wheat or maize (corn)]. So, if plants die because of droughts, we will not have enough food to eat!
If there is no water around, what can plants do to survive? Amazingly, all plants seem to have a number of genes for drought-defense strategies encoded in their DNA. Genes are small sections of DNA, like chapters in a book. How they use these genes determines their ability to survive drought.
Some plants are drought-resistant. When we talk about drought-resistant plants, we mean plants that can withstand dry conditions without dying. A drought-resistant plant can survive drought by using three defense strategies: escaping, avoiding or tolerating the loss of water [1]. Drought tolerant plants are quite rare in nature and can endure long periods with no water at all. Some of the most spectacular drought tolerant plants are called resurrection plants. Resurrection plants are able to survive long periods (up to 3 years!) without any water. However, give them a little water and they will spring back to life in a day or two. Other drought-resistant plants may not be as spectacular, but they too can survive short periods of drought using special techniques and defense strategies.
Some Plants Have Special Structures That Help Them to Survive in Drought Conditions
Some plants are able to survive droughts because of their unique structures. These structural features include the external armor of plants that protects them against water loss, as well as tools to help the plants absorb and store water. Drought-resistant plants can be specially adapted to live and survive in very dry environments. These plants often look quite different from plants living in areas where water is easily available. The drought-resistant plants normally have special “avoidance” (one of the defense adaptations!) features to make sure less water is lost to the environment or that more water gets absorbed and stored in the plant. Plants called desert succulentsPlants that have thickened and fleshy leaves and stems, in which water can be stored. are a good example of plants that have drought avoidance strategies [2]. Desert succulents have thick fleshy leaves, which often don’t resemble leaves at all, and they have a thick waxy layer to prevent water loss. Desert succulents also have extensive root systems that search for water under the dry desert soil (Figure 1). Some succulents have specialized roots that form large bulb structures, which are actually underground water reservoirs for the plant. These plants can survive years of drought using the water stored in their bulbs.
Starch is digested in the small intestine. the small intestine contains many structures that absorb glucose.
The Cordyceps fungus infects ants and make the ants act like what pop-culture type of undead creature?
Ants that have been infected by the Cordyceps fungus exhibit zombie-like behaviors, according to popular culture.
What do you mean by parasitism?In this particular relationship, one species benefits while the other does not.
Ants and the Cordyceps fungus have a parasitic connection in which the ants become infected and take on the appearance of zombies.
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What embyonic germ layer gives rise to liver?
Among the three germ layers, the endoderm (the most internal layer) is the one that gives rise to liver.
What is the endoderm?
Three embryonic layers are present in the blastoderm after segmentation. One of them is the endoderm, which is located in the interior most region of the embryo.
The endoderm is in charge of producing the Yolk sac, digestive and respiratory systems. It is involved in the formation of the thyroid glands, the thymus, pancreas, organs like the liver, and the structures are responsible for the urination.
The endoderm is the germ layer that gives rise to liver.
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The CRISPR-Cas9 system can be used to repair a mutant version of a gene in living cells. How does that process occur
The CRISPR-Cas9 system can be used to repair a mutation by recombination of the mutated sequence with a construct containing the normal gene.
What is the CRISPR-Cas9 system?The CRISPR-Cas9 system is a genome editing tool used to correct in vivo genetic mutations in a cell.
The CRISPR-Cas9 system contains a Cas protein that cuts DNA in a specific region of the genome according to a single guide RNA and thus produces desired genetic modifications.
In conclusion, the CRISPR-Cas9 system can be used to repair a mutation by recombination of the mutated sequence with a construct containing the normal gene.
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Which factor can decrease the rate of a chemical reaction?
A low activation energy
B high pressure
C low temperature
D high concentration of enzyme
(c)Low Temperature of the Reactants can decrease the rate of a chemical reaction.
How temperature effects the rate of a chemical reaction
Chemical reactions typically occur faster at higher temperatures. Food can spoil quickly when left on the kitchen counter. However, the lower temperature inside of a refrigerator slows that process so that the same food remains fresh for days. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision.Thus decrease in the temperature of a reaction can help in decreasing the rate of a chemical reaction.Lower the temperature lower the chemical reaction rate.
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what kind of neurotransmitter is serotonin ?
According to the research, serotonin is an inhibitory type neurotransmitter that acts in the brain regulating mood, sleep.
What is serotonin?It is a neurotransmitter that is produced in the intestines, brain and blood platelets from the synthesis of tryptophan.
This neurotransmitter plays a relevant role in the inhibition and regulation of sleep, appetite, body temperature and anger, for example.
Therefore, we can conclude that according to the research, serotonin is an inhibitory type neurotransmitter that acts in the brain regulating mood, sleep.
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I need help can anyone please help me?
The genotypes and phenotypes of the offspring is determined by the parents.
What will be the genotype and phenotype of the offspring of the cross?Assuming G is dominant over g, the offspring of the cross between the parents whose genotypes are Gg and Gg are given below:
Gg x Gg = GG, Gg, gg, and GgProbability of a gray offspring = 0.75
Probability of an albino offspring = 0.25
There are three possible genotypes; GG, gg, and Gg
There are two possible phenotypes; gray and albino
Probability of getting heterozygous offspring, Gg = 0.5
Probability of getting h0m0zygous offspring, GG and gg = 0.5
The color of the female is gray
The color of the male is gray
Assuming G is dominant over g, the offspring of the cross between the parents whose genotypes are gg and Gg are given below:
gg x Gg = Gg, Gg, gg, and ggProbability of a gray offspring = 0.5
Probability of an albino offspring = 0.5
There are two possible genotypes; Gg, and Gg
There are two possible phenotypes; gray and albino
Probability of getting heterozygous offspring, Gg = 0.5
Probability of getting h0m0zygous offspring, gg = 0.5
The color of the female is albino
The color of the male is gray
Therefore, the genotypes and phenotypes of the offspring is determined by the parents.
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When cartilage is produced at the epiphyseal side of the metaphysis at the same rate as bone is deposited on the opposite side, bones.
Answer:
grow longer
Explanation:
In a long bone, the epiphyseal is the growing region. In young bones, bone formation occurs in a layer of hyaline cartilage. The epiphyseal plate forms cartilage on the epiphyseal end. Cartilage is calcified on the diaphyseal side, and the diaphysis lengthens.
It starts to grow longer
What are the classification categories
The classification categories of organisms are:
KingdomPhylumClass Order Family Genus SpeciesWhat is taxonomy?Taxonomy can be defined as a scientific method which is used by researchers for the naming, classification and description of the various species of organisms such as humans, animals, and plants.
In Science, the classification categories of organisms include the following:
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For Labrador retrievers, black fur is dominant over yellow. Could a golden yellow
Labrador be obtained by crossing two black ones? Explain. (3 marks)
Answer:
it could
Explanation:
the recessive genes of the golden fur is still in the gene pool and maybe one black lab has the dominate black fur gene but has the golden recessive gene still accessible. so it could happen
Alpa wants to change 0.54 kilometers into a smaller metric unit
If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.
What is a Metric unit?A Metric unit may be defined as a technique of measurement in which the basic units are the meter, the second, and the kilogram. These units are interchanged with one another by using several formulas of conversion.
The complete question is as follows:
Alpha wants to change 0.54 kilometers into a smaller metric unit. She will have to:
multiply divide addsubtractTherefore, If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply. Thus, the correct option is A.
For example, In case, if she wants to convert 0.54 into hectometers, then she has to multiply it by 10, that is, 0.54 × 10 = 5.4 hectometers.
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Choose all the answers that apply.
Asteroids:
only orbit planets
take millions of years to orbit the sun
are made of frozen gas and ice
sometimes come very close to Earth
only orbit the sun
Asteroids sometimes come very close to Earth and take millions of years to orbit the sun. Thus, the correct options are B and D.
What are Asteroids?Asteroids may be defined as nominal planets which can neither be classified either as a planet or as a comet that orbit the sun as well as planets.
An asteroid is a name we allocate to the enormous number of small bodies that orbit the sun, here in the internal solar system. These small bodies orbit planets as well as the sun and take a significant time in orbiting.
Therefore, the correct options are B and D.
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A species with narrow niches that can survive in a small range of environmental conditions are
A. K-selected species
B. r-selected species
C. Generalist species
D. Specialist species
Answer:
D. Specialist Species
What is the advantage for species to be specialists, and how can they survive in the presence of opportunistic/generalist species?
In the setting of specialized habitats or unique situations, specialized species exist. When those conditions and surroundings change, they must adapt or go extinct, thus they must survive while they still exist.
When compared to generalists, they have the benefit of efficiency, which increases the likelihood of survival and, hence, reproduction within certain settings or situations. The generalists, on the other hand, have the benefit of being able to survive in a larger variety of circumstances and have a higher probability of doing so.
Cactuses, which are plants adapted to dry environments, are an example of specialization. More generalist plant species would typically outcompete cacti in most habitats on Earth, but very few of such species could endure the harsh conditions of a desert.
Extreme environmental conditions, competition for limited resources, and "evolutionary arms races" are some of the pressures that cause specialization. Cheetahs sprint quickly both because their prey moves quickly and because quicker cheetahs will be more effective hunters and more likely to procreate. The advantage of specialization is clear when seen from the standpoint of catching the next meal on a daily basis.
My key argument is that specialization's benefits must always be viewed in the context of the environment that generated the selective pressure that resulted in specialization. Although experts are specialists because they must be, their specializations put them in danger.
What are the main functions of red blood cells ?
Answer:
carrying oxygen
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which
type of limiting factor causes this?
density dependent
density independent
population dependent
population independent
Answer:
Density Independent
Explanation:
Density independent is the factor that will affect a population no matter its size. Temperature, natural disasters, and oxygen levels all influence this.
The correct term to describe the type of limiting factor that causes the destruction of both the small population of trees and the large population of birds in this scenario is "density-independent." Density-independent factors are environmental factors or events that affect populations regardless of their size or density.
What is density-independent?Density-independent factors are environmental factors or events that affect populations regardless of their size or density. These factors exert their influence on population dynamics independently of population density. Density-independent factors include natural disasters like earthquakes, floods, hurricanes, and forest fires, as well as extreme weather events, habitat destruction, pollution, and certain diseases.
In this case, the forest fire is an example of a density-independent factor because it can impact both the tree population and bird population regardless of their respective sizes or densities.
Therefore, the correct answer is "density-independent."
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Which two sentences use coordinate adjectives?
A.The dark, musty cellar was full of mice.
B. We rode down a long dirt road on a sunny morning.
C. The dark-haired, hazel-eyed baby was gurgling happily.
D.Alan is wearing a pale blue sweater.
The two sentences which use coordinate adjectives include:
The dark, musty cellar was full of mice.The dark-haired, hazel-eyed baby was gurgling happily.What are Coordinate adjectives?These are words which describe the features of the same noun and is usually separated by a comma.
Options A and C have coordinate adjectives such as 'dark' and the 'dark-haired' respectively.
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reviewing Meiosis:
????
Answer:
Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome.
Explanation:
hope it will help you
tuberculosis, botulism, and tetanus are examples of diseases caused by rod-shaped bacteria known as ______________.
Bacilli is a rod shaped bacteria that cause diseases like tuberculosis, botulism, and tetanus.
What is Bacilli?Bacilli refer to a group of bacteria that is small, rod shaped and also a gram positive bacteria which causes diseases or infections on their host. They normally transmit diseases through infected food, water and animal bite.
Therefore, Bacilli is a rod shaped bacteria that cause diseases like tuberculosis, botulism, and tetanus.
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Herbivores have teeth designed for eating...
A. Plants only
B. Animals only
C. Plants and animals
Answer:
The answer is:
A. Plants only
Answer:
plants only
hope its helps
If the population of poison dart frogs in this rain forest community were to disappear, which of these populations would be most likely to increase?
A: Fruit bat
B: Sloth
C: Beetle
D: Strangler fig
Answer:
c
Explanation:
the beetles fall prey to the poison dart from so if they went extinct they wouldn't be a threat to the beetles population
The ________ are the primary organs for filtration of the blood.
The primary organ used in the filtration of blood in the body is the kidney.
The kidney is a bean shaped organ that is about the size of a human fist. It is located at the bottom of the rib cage. There are two kidneys in the body, each kidney is located at each side of the spine in the body.
The kidney filters unwanted substances from the blood and pass them out of the body as urine. Blood is filtered in a part of the body known as glomerulus.
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why is cooling of the plant important
Answer:
When temperatures are too high, energy systems (metabolic functions) slow, and growth and flowering slows or stops.
Explanation:
-cooling the plant and pumping water and minerals to the leaves for photosynthesis. Plants need to cool themselves for several reasons.
A/An ____________________ reaction involves binding antigens to antibodies.
Answer:
its "A" reaction involves binding antigens to antibodiess
Explanation:
it is because An only comes before a vovle word
An immune reaction involves binding antigens to antibodies.
What is an immune reaction?An immune reaction is a type of reaction that take place in the immune system if the body which involve binding of antigens to the antibodies to prevent foreign invaders.
Therefore, An immune reaction involves binding antigens to antibodies.
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Which of the following molecules Carrie’s genetic information that determines the physical characteristics that organisms inherit?
DNA, the inheritable Material DNA, deoxyribonucleic acid, is the inheritable material in your cells.
It was passed on to you from your parents and determines your characteristics. The discovery that DNA is the inheritable material was another important corner in molecular biology.For a patch to act as the inheritable material, it should have the following characteristics Be able of replication i.e. produce its own replica.It should be stable, structurally and chemically.It must have the compass for slow changes( mutations) to evolve. Be expressed in the form of ‘ Mendelian Characters ’.
Although DNA is the inheritable material in utmost organisms, in some contagions, RNA is the inheritable material. In fact, according to studies, RNA was the first inheritable material. But, since RNA is unstable, DNA evolved from RNA with chemical variations, making it more stable and more fit to carry inheritable information.
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