Answer:
In heterozygotic individuals, the gene for sickle cell anemia is protective against malaria.
Explanation:
Through the same mechanism that the mutation associated with sickle cell anemia produces the disease (altered hemoglobin structure), having a single copy of the mutation (that is, being heterozygotic) provides protection against malaria. This is believed to be due to the altered structure causing difficulty for the malaria parasite when it attempts to enter red blood cells as part of its life cycle.
Today, there are medications to successfully treat malaria, but it still killed 627,000 people in 2020. This represents a significant evolutionary pressure for genes that would prevent serious malarial illnesses. As malaria was and still is common in African regions, the result was a higher prevalence of sickle cell anemia in those of African descent.
If the axis of the Earth was not tilted in relationship to its plane of orbit, what would be the most likely result? :)
Answer:
there would be minor changes in weather and precipitation throughout the year
Explanation:
most of the season wouldn't exist either and colder parts of the world will be a little warmer then they are right now evolution could be different as well from how much nutrients that plants get from the sun which also can pay into oxygen levels
Mitosis is just one small part of the cell cycle! Describe what would occur if cells were in mitosis more than they were in interphase.
Answer:
Mitosis is just one small part of the cell cycle. What would occur if cells were in mitosis more than they were in interphase? They would grow and duplicate too rapidly. ... When a cell seperate incorrectly so you don't get the right number of chromosomes.
Mitosis is one of the phase of the cell cycle, if cells were in mitosis more than they were in interphase they would grow and duplicate rapidly.
What is mitosis?Mitosis is defined as the process where both unicellular and multicellular organisms undergo cell division; here the number of chromosomes remains the same to the parent cell.
In this phase of cell cycle the nucleus of a cell is divided into two nuclei having equal amount of genetic material and produce both the daughter nuclei.
Nuclear division is followed by cytoplasmic division after the separation of the nucleus. It is important for the growth of the cells and the replacement of worn-out cells.
In this division production of two daughter cells are from the parent cell; It is also known as equational cell division because the chromosome number in the parent cell and daughter cell is the same.
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NO LINKS OR FILES REAL ANSWER draw a diagram of water crossing a membrane by osmosis
Answer: I could but how do I show
Explanation:
reasons why a transport system is necessary in higher animals?
Explanation:
Answer: The higher animals needs and internal transport system so that the innermost cells can get nutrition which cannot be left on diffusion and osmosis to transmit. They also needed an internal transport system and so that they get oxygen to the internal cell...
I hope you help :)
what impacts do the amounts of available energy, water, and oxygen have on an ecosystem?
Answer:
What impact do the available amounts of energy, water, and oxygen have on an ecosystem? They act as limiting factors. ... increasing the biodiversity of the ecosystem.
Mixtures of solids can be
separated based on what?
Answer: Observable properties
Explanation:
Lexi drew a diagram to compare eubacteria and archaebacteria. Which label belongs in the area marked Y? Take different shapes Are single-celled Live in antarctic ice May be autotrophs
Archaebacteria can live on the Antarctic ice.
Eubacteria and archaebacteriaArchaea (archeobacteria) are prokaryotic organisms and differ from bacteria mainly in that their cell walls do not contain peptidoglycans.
Generally, these organisms have characteristics that not only allow them to survive in these environments, but also seem to improve in extreme environments. Thus, they are called extremophiles.
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Answer: B. Live in antarctic ice
Explanation:
Describe contributions forests make to:
1. Our economy in the form of products.
2. Our social well-being, including recreation
3. Soil protection and increased fertility.
4. Clean water.
5. Clean air. (carbon cycling, sequestration)
6. Wildlife habitat
7. Fisheries habitat
8. Threatened and endangered species of plants and animals
Explanation:
Answer:Crop Production. – Tillage. – No-till ... Kansas Clean Drinking Water Fee fund (administered by the ... plants and stores water and nutrients long enough for the plants to make use of them. ... refers to soil as the “Earth's living skin,” saying that the majority of the ... At each level of consumption, waste and organic materials are.
Select all that apply !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Which of the following can occur during an earthquake? Select all that apply.
Cliffs and cracks form
Sections of the crust are demolished into clouds of dust
Part of the crust may sink under the ocean
Crust can fold or wrinkle
Answer:
Cliff and Cracks, Sink under ocean I know for sure.
Explanation:
We have mountains because of convergent plates. they push eachother up and make cliffs. i also know sink under the ocean because we have underwater volcanoes for that reason
Part of the crust may sink under the ocean.
History is the biggest witness of it.Many times in past the crust of earth sinked down in ocean due to earthquake and the crust below the ocean came up(Formation of Newzealand)What is the chromosome type in interphase? And what is the happening during that phase?
Answer:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
Explanation:
Answer ASAP please I only got 10 more min
Earth & space btw
Answer:
it should be island arc (:
4.
Place the appropriate letter in the blank next to the parts of the small portion of an RNA molecule shown
and draw a line around one nucleotide.
Nitrogen bases
Ribose sugars
Phosphate groups
Answer:
niphneoix
Explanation:
maria wants to know if red hummingbird food attracts more hummingbirds than clear food. this is the experiment she sets up.
it seems so simple but i genuinely cannot think of an answer to question 8 lol. pls help!
it is 1:40pm EST on jan 27, i need this by tonight :) brainliest to the best answer!! lots of points
Answer:
Maria included the third feeder becuase hummingbird need water too, lol. The first two feeder only consist of hummingbird food which would be the sugar and water (that is the food). The dye in the first feeder is only the additive to see if the red food attracts more hummingbirds than the clear food.
I need help with question 1 please
Answer:
to blurry sorry
Explanation:
PLEASE HELP ASAP THIS IS OVERDUE BIOLOGY HOMEWORK
First, ____ unzips the strands. Next,
___ __________ reads the strands and fills
in the missing bases on both sides.
The ________ strand is completed
continuously, while the _______ strand is
completed in sections.
When this process is completed, 2 identical DNA strands are produced.
Each with an _____ side and a
________ side.
Answer:
First, DNA helicase unzips the strands. Next, the DNA polymerase reads the strands and fills in the missing bases on both sides.The lagging strand is completed continuously, while the Okazaki fragments are completed in sections. When this process is completed, 2 identical DNA strands are produced. Each with a 5' to 3' side and a 3' to 5' side.
Explanation:
HELP!!!
Look at the diagrams below. Which diagram shows the proper relationship between
the biosphere and an ecosystem? (A) Drawing A (B) Drawing B (C) Drawing C
Answer:
it's A
Explanation:
it's A ............
Which of the following protects the skin against infection by microbes? (Select all that apply)
Antimicrobial peptides
Nerve endings
Dryness
Vitamin D
Acid mantle
The Antimicrobial peptides and Acid mantle protects the skin against infection by microbes.
The protective functions of the skinThe skin is the largest peripheral organ of the body that protects the body from various types of infection.
This is because it is made up of various parts which include:
Epidermis: This consists of keratinized cells that form a barrier against microbes.Antimicrobial peptides: These are protein molecules of the innate immune system and are found in the skin. They have potent broad-spectrum antimicrobial properties and help protect the body against infection.Acid mantle: This is a very fine acidic film on the surface of skin.Therefore, the Antimicrobial peptides and Acid mantle protects the skin against infection by microbes.
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In the rock pocket mouse example, after the lava flow made the ground dark.
The darker fur color in some mutated mice became:
O A favorable trait
O Lighter
O A neutral trait
O A negative trait
A fold is a ------------ in rock, and a fault is a -------------- in rock.
break
bend
gap
Answer:
bend the answer
Which of the following is a BEHAVIORAL adaptation?
Sleeping during the day
O Large ears
Camouflage
O Seed production
Answer:
A
Explanation:
Behavioral adaptation is something an animal does behaviorally, usually to help them survive. Camouflage, large ears, and seed productions are all considered physical adaptations, which leave sleeping through the day as the only choice for behavioral adaptation.
This is because the animal may be nocturnal and needed this adaptation to survive better.
What are all over the body, make up the nervous system, and send messages to the brain?
A. nerve cells
B. axons
C. dendrites
D. hormones
The answer is A. Nerve Cells. Nerves send messages to the brain and are all over your body
3CH4 and C3H12 have the same number and kind of elements. How are they different? Feel free to use the “Playground” tab to complete this.
The difference between 3CH4 and C3H12 is that the number of atoms of each element in each compound is different.
What is a compound?In chemistry, a compound is composed of a number of elements that are chemically joined together. Both 3CH4 and C3H12 are compounds.
The difference between 3CH4 and C3H12 is that the number of atoms of each element in each compound is different. The two are different compounds with different properties.
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Carbon dioxide is read I ly soluble in water.according to the equation CO2+H2O TO H2CO3. carbonic acid (H2CO3) is a weak acid .if CO2 is bubbled into a beaker pure, freshly distilled water , graphs correctly described
Gases dissolve easily in water when they react with water.
Dissolution of a gas in waterThe question is incomplete but I will discuss the dissolution of a gas in water. A gas dissolve easily in water when the gas can react with water. In this case; CO2+H2O ⇄ H2CO3.
Let us note that the dissolution of a gas in water is an exothermic process hence does not occur at elevated temperatures.
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The becomes the seed, while the ovary becomes the fruit,
after fertilization.
Explanation:
the ovary becomes the seed, while the ovary becomes the fruit,
after fertilization.
A river and all of its streams and tributaries are called a delta.
A. True
B. False
Answer:A
Explanation: I know my land structures
help pls i will mark brainiest
Answer:
Water, Sunlight, and Oxygen = Abiotic While Consumers and Producers are Biotic
Explanation:
Because biotic is LIving and Abiotic is Non-Living.
Tell me If this helps!
describe four features of bacteria that enable them to survive in a wide variety of habitats
Answer:
There are many features that make bacteria survive in harsh conditions. Bacteria are found almost everywhere. There are various types of features found in bacteria. They can survive in harsh conditions because of the energy-generating enzymes, protein synthesis mechanism, biodegradative enzymes, and cell membranes. This adaptation helps them to survive in extreme conditions.
Explanation:
Hope this helps you!!!!!! :D
Bacteria are single-celled organisms without a real nucleus and cell organelles that are attached to membranes. Because of the bacteria's ability to produce energy, endospores, cell walls, and cysts, they can withstand extreme environments.
What is a bacteria?Bacteria are common, largely free-living organisms that frequently only have one biological cell. They make up a significant portion of the prokaryotic microbial kingdom.
Bacteria, which are typically a few micrometres long and were among the first life forms to appear on Earth, are found in the majority of its habitats.
The capacity of the bacteria to form a cyst, which shields them from unfavourable environmental factors, is their main characteristic.
The prokaryotic organism, for instance, has a cell wall that enables it to live in both hypertonic and hypotonic environments.
Additionally, the bacteria produce endospores that aid in their resistance to extremely high temperatures.
Cold shock proteins are produced by the bacteria and aid in their ability to endure cold temperatures.
Thus, these are features of bacteria that enable them to survive in a wide variety of habitats.
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What combines in different
ways to make up all matter?
1.
Answer:
Atoms
Explanation:
Atoms are the basic building block of all matter
What is the best explanation for extinction of various species?
A. Dramatic Climate Change
B. Survival of the Fittest
C. Disease Ridden Plants
Answer:
I believe it would be Dramatic climate change
Explanation:
With our earth constantly changing, the species living in the climate that is being erased are dying out because of the loss of their habitat
give three function of carbohydrates
[tex]\bold{Helloo}[/tex]~
Give three function of carbohydrates.[tex]\color{purple}\huge\bold\star \underline\mathcal{ \: Answer \: }\star [/tex]
It Provide energy to the body.Sparing the use of proteins for energy.Sugars and dietary fibre.Let me know if my ans is wrong, [tex]\bold{Thank}[/tex][tex]\bold{U}[/tex]!
[tex]\bold\purple{Hopeithelps}[/tex]
[tex]\bold{Study}[/tex][tex]\bold{Well}[/tex]~
