Answers
Answer:
In areas of Africa where malaria is prevalent the number of sickle cell cases remains consistent generation after generation. ---- support the hypothesis.
In Canada the incident of sickle cell anemia has been increasing in the population. ----- contradicts the hypothesis.
Explanation:
In areas of Africa where malaria is widespread the number of sickle cell cases remains consistent generation after generation while on the other hand, In Canada the incident of sickle cell anemia are lower in the population because of environmental condition is not good for increase in malarial disease. In Africa, the environment is suitable for the mosquitoes that causes malaria so there is high increase of sickle cell anemia in the population.
Related Questions
Can you help me with both questions
Answers
Answer:
b and c
Explanation:
Hope it helps:)
The creation of genetically identical offspring by a single parent, without the participation of sperm and egg, is called The creation of genetically identical offspring by a single parent, without the participation of sperm and egg, is called spontaneous generation. asexual reproduction. regeneration. sexual reproduction.
Answers
Answer:
Asexual reproduction.
Explanation:
The generation of genetically identical offspring from a single parent, without the fusion of sperm and egg, is called asexual reproduction. Asexual reproduction occurs when there is only one parent from which organism is produced. Budding, binary fission and fragmentation are the different types of asexual reproduction that involves only one parent and no fusion of sperm and egg cells.
If the moon started its orbit from a spot exactly between Earth and the sun it would return to almost the same spot ?
Answers
Answer:
After 29.5 days
Explanation:
Complete question
If the moon started its orbit from a spot exactly between Earth and the sun, then after how much time it would return to almost the same spot ?
Solution
New moon occurs once in 30 days. Hence there is a gap of 30 days between two new moons. To be specific moon phases repeat after every 29.5 days. However, as per the Gregorian calendar there can be two new moon in one month with a gap of 15 days only between two new moons.
Which of the following is true of Meiosis?
A. Meiosis does not require interphase to occur.
B. Meiosis requires DNA to copy itself twice
C. Meiosis produces haploid cells
D. Meiosis contains only one cell cell division
E. Meiosis occurs in all cells
Answers
Answer:
my true answer require is B
Why can't a hair shaft be used to collect an individual's DNA
Answers
Answer:
A hair w/out the follicle and its nuclear DNA, or genetic material in its nucleus, cannot provide individual evidence. Physical examination of the hair can only yield class evidence.
Explanation:
Answer: Hope this helps!
Explanation:
When performing a hair DNA test for the purpose of paternity, it is a must to have a complete hair sample – with hair shaft and hair follicle. On the other hand, if the purpose of hair DNA testing is for forensic use, a cut hair sample even with no follicle can still be of use. However, a complex procedure has to be made.
cell like this has just left the lungs. What colour will it be?
Answers
Answer:
Within your blood, red blood cells have a specialized task. ... Your blood then transports carbon dioxide back to the lungs where you can ... They extend like tree branches into the lung.
Explanation:
HOPE IT HELP'S! C:
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A lack of CO2 in the flask would have caused reduced O2 production. If O2 , ATP, and NADPH are the by-products of the light-dependent phase of photosynthesis, how does a lack of CO2 cause reduced O2 production
Answers
Answer:
Carbondioxide is a reactant of photosynthesis.
Explanation:
Carbondioxide is a reactant of the process of photosynthesis and the product of photosynthesis is oxygen, if there is no or less carbondioxide the rate of photosynthesis decreases which leads to the lower production of oxygen. The rate of photosynthesis affected by the reactants available to it. If Carbondioxide is available in large amount more photosynthesis occurs that leads to more production of glucose as well as oxygen. So we can conclude that lack of Carbondioxide results in lower production of oxygen in the process of photosynthesis.
why is the cell cycle often represented as a circle
Answers
Explanation:
The cell cycle is a cycle, rather than a linear pathway, because at the end of each go-round, the two daughter cells can start the exact same process over again from the beginning.
plse give brainliest.
What’s the answer hurry it’s a test ?
Answers
Answer:
A: maintains genetic continuity from one generation to the next
Explanation:
I think A is correct because it mains genetic continuity from one generation of cells to the next. So all you cells in skin that are dead are replaced by the exact replica of next skin cells that arose from mitosis.
Gametes undergo meiosis and not mitosis.
Green (G) is the dominant color for pods in pea plants. Yellow (g) is
recessive. Is it possible to have a heterozygous yellow pod?
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Answer:
No, it is not
Explanation:
Heterozygous is Gg, and if the dominant gene is there, it masks the recessive one.
How can extinctions and expansions occur in the same habitat? Explain your answer.
Answers
When a habitat is destroyed, the carrying capacity for indigenous plants, animals, and other organisms is reduced so that populations decline, sometimes up to the level of extinction. Habitat loss is perhaps the greatest threat to organisms and biodiversity.Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time.
Extinctions are associated with biodiversity changes, thereby affecting species expansion.
What is extinction?Extinction refers to the disappearance of a given taxonomic group (e.g. species-level extinction).
This process of disappearance (extinction) modifies the trophic relationships in the ecosystem.The modification may lead to the expansion of a given species (e.g., prey in the case of predator extinction).In conclusion, extinctions are associated with biodiversity changes, thereby affecting species expansion.
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What role do bacteria play in soil ecosystems?
They add air to soil.
They break down rocks.
They return nutrients to soil.
They tunnel through soil.
Answers
Answer:
They return nutrients to soil.
Explanation:
Bacteria help degrade dead animals and plants and bring valuable nutrients back to Earth.
Define el consepto de fraccion
Answers
Answer:
The concept of fraction
Explanation:
What is the concept of fraction tho? Fractions are numbers that represent a part of the whole. When an object or a group of objects is divided into equal parts, then each individual part is a fraction. ... It is divided into a numerator and denominator where the denominator represents the total number of equal parts into which the whole is divided.
A fraction represents the number of parts that we take from a unit that is divided into equal parts. It is represented by two numbers separated by a fraction line.
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Which of the following is not a strategy for reducing health risks from chemicals?
a.
eliminate the use of leaded gasoline
b.
reduce the sulfur content of fuel
c.
increase production of industrial chemicals
d.
limit worker exposure to chemicals
Answers
Answer:
c
Explanation:
If you wanted to reduce health risks, why make more?
Answer:
c
Explanation:
bc I said so
A mutation that involves one or just a few nucleotides is known as what? A. point B. minor C. chromosomal
Answers
That would be a point mutation
Answer:
Point
Explanation:
HELP DUE IN 10 MINS!
What type of mutation is shown?
A. deletion
B. duplication
C. inversion
D. translocation
Answers
Answer:
B. duplication
Explanation:
Answer:
Inversion i believe
Cuz u add a gene so inversion
When modeling fisheries: (You may choose one or more answers)
A. Fixed quota models result in multiple maximum sustainable yield population levels
B. Fixed effort models result in an inability to harvest at maximum sustainable yield
C. Fixed quota models are risky because slight miscalculations can result in fish population extinction
D .Fixed effort harvesting reduces the risk of population extinction
Answers
Answer:
Option A, Fixed quota models are risky because slight miscalculations can result in fish population extinction
Explanation:
Some of the major drawbacks of modelling fishing are as follows –
a) The fixed quota model is very risky as a miniscule change in attributes can result into extinction of fish.
b) On the other hand fixed effort harvesting can decrease the risk of fish population extinction
Hence, option A is correct
How many pounds of a producer would a chicken need to eat for 1 pound of a fox to eat?
Answers
10% of energy moves on through each trophic level so if a chicken ate 10 pounds of a producer that would be equivalent to the fox eating 1 pound of chicken. (10 times .1 = 1)
Describe an example of a plant responding to environmental stimuli
Answers
Answer:
Plants also detect and respond to the daily cycle of light and darkness. For example, some plants open their leaves during the day to collect sunlight and then close their leaves at night to prevent water loss. Environmental stimuli that indicate changing seasons trigger other responses.
Explanation:
Hope this helps you
During a section of the cell cycle collectively called ______, the cell is not dividing, but protein synthesis, cell growth, DNA replication, and basic cell functions are occurring.
Answers
Answer:
INTERPHASE
Explanation:
The cell cycle refers to the series of event from DNA replication to actual division of a cell. Mitosis and meiosis are the two types of cell division, which is made up of two stages namely: interphase and the M-phase.
The interphase is also called resting stage because the cell is not undergoing any division. The interphase is further divided into G1, S and G2 phases. In these stages, the events that occurs include; protein synthesis, cell growth, DNA replication, and basic cell functions.
Can a hyena eat a coyote?
Answers
Answer:
Yes
Explanation:
Anything can eat anything. Sure the Coyote will pick a fight, and maybe something would turn the match right around, but yes, a hyena can eat a coyote.
2) Which of the following are the smallest venous vessels?
A) large veins
B) venules
C) medium veins
D) capillaries
Answers
Venules are the smallest venous vessels (option B)
What are venous vessels?Venous vessels refer to the blood vessels for transporting blood from the tissues back, to the heart. They work in contrast to arteries, which carry oxygenated blood from the heart to the tissues.
Compared to arteries, venous vessels usually have dimensions and thinner walls. The reason, behind this is that they don't require pressure to transport blood. Additionally venous vessels possess valves that aid in preventing the flow of blood.
Base on the information above, we can infer that Venules are the smallest venous vessels (option B)
Learn about Venules here https://brainly.com/question/33738149
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What does DNA have to do with variation of a species?
Answers
Answer:
dna affects the physical appearence and also how our body works. changes in our dna can cause one to look different and have different functions from what a normal organism of that species has. as that organism with a mutation reproduces, its offspring will end up having similar features causing a variation in the species
Explanation:
What are the oceanic features and functions
Answers
Answer:
Explanation:
What are oceanic features?
Features of the ocean include the continental shelf, slope, and rise. ... Below the ocean floor, there are a few small deeper areas called ocean trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises.\
The air we breathe: The ocean produces over half of the world's oxygen and absorbs 50 times more carbon dioxide than our atmosphere. Climate regulation: Covering 70 percent of the Earth's surface, the ocean transports heat from the equator to the poles, regulating our climate and weather patterns.
Select all that apply.
Which statements about Archaea are true?
Archaea are able to live in high concentrations of salt water.
n Archaea are commonly found in your body, your food, and your home.
If you get food poisoning, you can most likely blame Archaea.
Archaea can be found at the bottom of the sea.
Answers
What is the temperature should an incubator be set if using a wet-bulb?
Answers
Answer:
40 tempature for it to be set right
The shift in the stream was caused by movement at a __ boundary
A. converging
B. diverging
C. transform
Answers
Explanation
name three types of giraffe s
Answers
1. southern giraffe (Giraffa giraffa),
2. Masai giraffe (G. tippelskirchi),
3. reticulated giraffe (G. reticulata)
4. northern giraffe (G. camelopardalis), which includes the Nubian giraffe (G. c. camelopardalis) as a distinct but related subspecies.
Explanation:
Masai giraffe (G. tippelskirchi)
Northern giraffe (G. camelopardalis) 3 subspecies.
Reticulated giraffe (G. reticulata)
Southern giraffe (G. giraffa) 2 subspecies.
explain how the sneaker resale industry is an example of capitalism at work.
help me help me
Answers
Answer:your mom is so dead
Explanation:
cancer
Describe one property of water, and explain how the structure of water is responsible for this property. WILL MARK BRAINLIEST!!
Answers
Answer:
Water has cohesive and adhesive properties.
Water molecules have strong cohesive forces due to their ability to form hydrogen bonds with one another. Cohesive forces are responsible for surface tension, the tendency of a liquid's surface to resist rupture when placed under tension or stress.