Answer: Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell.
Explanation:
During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation.
A pneumotachometer actually measures_____by sensing the ____ on ethier side of a fine mesh screen.
O Pressure: Air Flow
O Pressure: Gas Type
O Gas Type: Pressure
O Air Flow: Pressure
A pneumotachometer actually measures Air flow by sensing the pressure on ethier side of a fine mesh screen.
so, correct option is :
=》O Air Flow: Pressure
QUESTION 9
Which of the following is not a property of fibre?
O a. It delays gastric emptying
Ob.it
It provides a feeling of satiety
O c It elevates blood glucose levels
O d. It contributes 6-10 kilojoules per gram.
Answer: The correct option is C ( It elevates blood glucose levels).
Explanation:
All animals feed on ready - made food. This food is made up of several groups of substances.All food taken in by an animal can be divided into six groups of food substances or nutrients. They are carbohydrates, proteins, fats and oil, mineral salts, vitamins and water.
Fibres is defined as foods that are usually of plant origin which are indigestible and stimulates movement of the bowels by providing bulk to the intestinal content.
Examples of the plant based food which are rich in fibre include:
--> grains,
--> fruits,
--> vegetables,
--> nuts, and beans.
Fibre is further divided into two:
--> Insoluble fibre: This is also called roughages. They include fruits and vegetables with their backs, whole grains.
--> Soluble fibre: This is the jelly-like fibre that dissolves in water. It includes the flesh of fruits and vegetables, oats.
All fibers can slow the absorption of sugar and fat from food, and therefore help prevent spikes in blood sugar. Therefore the option that fibre elevates blood glucose levels is NOT a property of fibre.
Answer:
c It elevates blood glucose levels
Explanation:
Elevation of blood glucose levels is not the property of fiber because fiber helps control blood sugar. Fiber can't be converted into glucose or fiber does not have glucose so the concentration of glucose can not be increased if more fiber is eaten. Fiber provides a feeling of satiety as well responsible for gastric emptying. One gram of fiber produces 8 kilojoules per gram. So we can conclude that blood glucose level can't be increases due to fiber.
could you please help me
Answer: 7. Salt 8. Luteal or decline. 9. Lungs. Brainliest?
Explanation:
Explain how deforestation can lead
to changes in the sea level.
*In 5 sentences or more*
Answer:
Explanation: Deforestation leads to climate change. The fewer trees in environment, the more carbon emmsision there is which warms up the earth. As the earth gets warmer the glaciers and ice caps in the artic and antarctic melt which leads to more water in the ocean. Think of ice melting in a glass of water, the ice melts and turns to water creating more water.
Which is the most likely explanation for the presence of 13 different finch species on the
Galápagos Islands today?
Answer:
Which is the most likely explanation for the presence of 13 different finch species on the Galapagos Islands today? Many years ago several different species of birds migrated to the islands and the 13 finch species that currently live there are the only species that survived.
Explanation:
Answer:
A. ✅ Many years ago, several different species of birds migrated to the islands and the 13 finch species that currently live there are the only species that survived.
A scientist gathers data on the growth of a population over time. A graph of the data is shown below.
Which statement below best describes the graph at point X?
A. The population is declining
B. The population is increasing
C. The population has reached the carrying capacity of the ecosystem
D. The population has exceeded the carrying capacity of the ecosystem
what is the geologic setting of the orr at Round Mountain
Answer:
Round Mountain is an epithermal, low-sulphidation, volcanic-hosted, hot-springs deposit located along the margin of a buried caldera. The majority of the mineralisation at Round Mountain is contained within the tuffs, although drilling has encountered some ore in the underlying Palaeozoic basement.
Explanation:
please mark this answer as brainliest
Which is metaphase? (Picture shown above)
Answer:
C is the correct answer.
Explanation:
Btw if it is wrong than i'm extremely sorry.
If you were trying to better understand keratin
production, which layer of skin would
you research?
epidermis
immune cells
dermis
0 hypodermis
DONE
Answer:
Epidermis (A)
Explanation:
Correct on Edgd
whoooooo is goo day 72819
Answer:
Hi how are you doing today Jasmine
Answer:
Thank you and have a good day.
The boundaries at the Peru-Chile and Aleutian trenches are generally: 1. Convergent 2. Divergent 3. Transform 4. Complex or uncertain
Which phrase describes a feature of clastic sedimentary rocks?
grouped by color
formed by chemical weathering
grouped by size of rock fragments
formed from dead plants and animals
Answer:
the 2nd one
Explanation:
Answer:
B:formed by chemical weathering
Explanation:
Drafts, wind, or physical placement of buildings can make it difficult for investigators to determine where a fire started.
A. True
B. False
Answer:
A. True
Explanation:
I took it on a test and it was correct ; )
Answer:
true
took the test
a food chain is the feeding relationships among all the organisms in an ecosystem.
true or false
Answer:
True
Explanation:
A researcher investigates a blood disease carried by birds she isolates an organism from the blood of an infected bird she finds that the organism is unicellular and has a nucleus a cell wall and the ability to produce spores what kingdom does the organism belong to
Answer:
The organism belongs to the Protista kingdom as it is unicellular, has cell walls, and has the ability to produce spores.
How is climate and weather related and different?
Answer:
Weather and Climate is different because weather is what conditions the atmosphere over a short period of time, and climate is how the atmosphere behaves over relatively long periods of time. Weather and Climate is related because they both deal with temperature, air, pressure, humidty, wind, and precipitation
Explanation:
Fresh steak is said to have both negative and positive redox potential. Discuss how the redox potential affects the microbial ecology of the food
Answer:
Increases redox potential decreases microbial growth inside food.
Explanation:
The redox potential is considered as one of the most complex indicators of the physical conditions of microbial cultures. The measurement of redox potential could be very useful for the determination of qualitative and quantitative parts of the microbial contamination. During the bacterial growth, the redox potential of the medium decreases. Redox potential is a measure of the tendency of a biological species which can be acquire or lose electrons through ionization. If the redox potential of the medium is increases, there will be lower growth of microbes in the food and vice versa.
Which two elements, in looking at their atoms, have a total of 51 protons between them?
Question 1 options:
Magnesium and Aluminum
Lithium and Scandium
Tin and Hydrogen
both A and B
Answer:
Atomic Mass 121.76 atomic mass units
Number of Protons 51
Number of Neutrons 71
Number of Electrons 51
9 more rows
The two elements, in looking at their atoms, have a total of 51 protons between them are Magnesium and Aluminum and Lithium and Scandium so option d. both A and B.
What are protons?
The protons are + charges particles found in the nucleus of the atoms.
NO. of protons in :
Magnesium and Aluminum- Magnesium has total of 12 proton and Aluminum has 13 total protons. Lithium and Scandium- Lithium has 3 and Scandium has 21So total no. of protons= 12+13+3+21= 50.
Thus it lies in between total of 51 protons in the periodic table.
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.
What is a blastula?
a hollow ball of cells
a hollow tube of cells
a solid ball of cells
a long sheet of cell
in your own words, why do you think the mining transitioned from underground tunnels to an open pit
Answer:
Open-pit mines are utilized when stores of industrially helpful metal or shakes are found close to the surface. ... Interestingly, minerals that have been discovered underground however are hard to recover because hard rock can be arrived at utilizing a type of underground mining.
Explanation:
gib brain
What are the impacts of catastrophic events?
Define global warming? What are the greenhouse gases?
What are the problems associated
arming in artic? Coastal area?
What are some ways that human lifestyles affect the environment?
Describe some sustainable farming techniques.
Describe some environmental parameters that should be examined before building on land?
Answer:
espero que te sirva
Explanation:
El calentamiento global y el cambio climático tienen coincidencia en la principal
de sus causas, la emisión masiva de los diferentes gases de efecto invernadero o
GEI que retienen el calor dentro de la atmósfera y sobre la superficie terrestre a
través del denominado efecto invernadero.
El efecto invernadero es un proceso natural por el cual se produce la retención
del calor procedente del Sol en la atmósfera terrestre gracias a la capa de GEI que
se encuentra en ella. Estos gases en cantidades normales mantienen la
temperatura del planeta aproximadamente a 33ºC por encima de la que podría
tener si estos no existieran, por lo que el planeta sería demasiado frío para que se
desarrollase vida en él. Sin embargo, actualmente el efecto invernadero se está
volviendo tan intenso a causa de nuestras emisiones que comienza a tener graves
repercusiones en el medio.
El Grupo Intergubernamental de Expertos sobre el Cambio Climático (IPCC)
concluyó en el Quinto Informe de Evaluación (AR5) de 2013 que la influencia
humana había sido la causa dominante de este calentamiento producido desde la
mitad del siglo XX a través de la emisión de GEI, lo cual es una evidencia cada vez
mayor. Entre los principales gases emitidos se encuentran el vapor de agua, el
dióxido de carbono, el metano y el ozono.
6. Give the name and structural formula for an amino acid.
Answer:
Name: Threonine
Explanation:
Structural Formula:
Explain how soil erosion may contribute to famine.
PLEASE HELP
Answer:
Soil erosion inhibits our ability to grow nutritious food. Causeing a food shortage which will lead to a famine.
Explanation:
I’m marking as brainliest! Choose the correct answer!
Answer: If this image is a representation of someone eating food and the food is going down their esophagus (throat) then I would go with D because the muscles are pushing the food towards your intestines which then break down the food.
Describe how individual cell breakdown energy rich molecules to provide energy for cell functions
Answer:
Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
Explanation:
Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy. This process is called 'cellular respiration'. The process is happens in all the cells in our body. Oxygen is used to oxidize food, main oxidized food is sugar(glucose).
HELP MEE
The diagram to the right shows the X chromosomes in a female fruit fly and the X and Y
chromosomes in a male fruit fly. The two fruit flies are crossed with each other. Fill in the two
chromosomes below illustrating the female offspring of the fruit flies.
Answer:
the question is not correct
Explanation:
send correct question
Answer:
A
Explanation:
During which stage of the cell cycle does the
replication of DNA take place?
Answer:
S phase
Explanation:
DNA replication occurs before the cell actually divides.
What hypothesis did Miller-Urey test in their experiment?
Answer: The Miller - Urey experiment is an experiment that was conducted by Stanley Miller and Harold Urey last 1950's. The hypothesis that they had tested and demonstrated was that several organic compounds could be formed by simulating the conditions of Earth's atmosphere.The Miller-Urey experiment provided the first evidence that organic molecules needed for life could be formed from inorganic components. Some scientists support the RNA world hypothesis, which suggests that the first life was self-replicating RNA.
Explanation:
True or false: (I really need help, if you saw this and responded thank you. :)
Answer:
False
Explanation:
heterozygous means there are two different alleles. So the trait would be written as Bb. I can't write the other option because it counts it as a swear word but it means that there are two identical alleles. So it would be written as BB
Answer:
False
Explanation:
How is an agrarian society likely to address the problem of crops spoiling
before they can be brought to market?
A. By cutting down forests to produce more cropland
O B. By switching from coal-burning power plants to solar energy
production
O C. By developing irrigation techniques that conserve water
O D. By creating more efficient methods of food preservation
Answer:
The correct answer is D) By creating more efficient methods of food preservation
Explanation:
By creating more efficient methods of food preservation. Therefore, option (D) is correct.
In an agrarian society, where agriculture is the primary means of livelihood, the problem of crops spoiling before they can be brought to market can have significant economic and social implications. Cutting down forests to produce more cropland or switching from coal-burning power plants to solar energy production would not directly address the problem of crop spoilage.
Developing irrigation techniques that conserve water could help improve crop yields and reduce water wastage, but it would not necessarily address the problem of crop spoilage. On the other hand, creating more efficient methods of food preservation would help prevent crops from spoiling before they can be brought to market, thus reducing food waste and increasing food security. Some examples of food preservation methods that can be used in an agrarian society include canning, drying, and pickling.
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