Answer:
Wildfires that burn into areas where fuels have been reduced by prescribed burning cause less damage and are much easier to control. ... The time interval between fires can be as often as every year although a 3- or 4-year cycle is usually adequate after the initial fuel-reduction burn.
Explanation:
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If a diploid eukaryotic cell contains 14 pairs of chromosomes for a total of 2n=28, how many chromosomes will be in the resulting products of cellular division if the cell undergoes:
Mitosis?
Meiosis?
Answer:
Mitosis = 28 chromosomes
Meiosis = 14 chromosomes
Explanation:
- Mitosis is the type of cell division in which the daughter cells are genetically identical to the parent cell and possess the same number of chromosome as the parent cells. For example, a diploid parent will produce a diploid daughter cell after mitosis.
- Meiosis, on the contrary, is the cell division that produces daughter cells that are genetically different from the parent cell. Each daughter cell have a reduced number of chromosomes (by half).
According to this question, a diploid eukaryotic cell contains 14 pairs of chromosomes i.e. 2n=28. After mitosis, each daughter cell will have same 28 chromosomes as the parent cell. Meiosis on the other hand, will produce daughter cells that possess 14 chromosomes each.
_____% of species present during the Permian survived into the Triassic.
Answer: 30
Explanation:
Neutrophils can sometimes kill human cells along with pathogens when they release the toxic contents of their granules into the surrounding tissue. Likewise, natural killer cells target human cells for destruction. Explain why it is advantageous for the immune system to have cells that can kill human cells as well as pathogens.
Answer:
Because Neutrophils has many other functions like
Neutrophils are the most abundant granulocytes that makeup about 40% of white blood cells and 60% of the immune cells in the blood.Neutrophils are the first responders to infection, and they phagocytose bacteria into phagosomes before hydrolyzing and destroying them.These cells also secrete a range of proteins that have antimicrobial effects as well as tissue remodeling potential.Neutrophils have a short lifespan and thus destroy themselves during the degradation of foreign invaders. New neutrophils are then produced continuously in the bone marrow.The neutrophils of another subpopulation, cager neutrophils, perform a transport function of delivering foreign particles to the target site for the action of killer neutrophils.Like wise Natural killer (NK) cells are effector lymphocytes of the innate immune system that control several types of tumors and microbial infections by limiting their spread and subsequent tissue damage.
state three functions of the cell membrane
Answer: A Physical Barrier. ...
Selective Permeability. ...
Endocytosis and Exocytosis. ...
Cell Signaling. ...
Phospholipids. ...
Proteins. ...
Carbohydrates. ...
Fluid Mosaic Model.
Explanation: Have a good rest of the day.
None of the above
5) Which of the following statements is true?
a. An ecosystem is an area where abiotic components (from organic or living source) and
biotic components (from inorganic or non-living source) interact between interdependent
subsystems within a spatially regulated organisation using energy from the sun and a
b. An ecosystem is an area where biotic components (from inorganic or living source) and
abiotic components (from organic or non-living source) interact between dependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
variety of raw materials.
C. An ecosystem is an area where biotic components (from organic or non-living source)
and abiotic components (from inorganic or living source) interact between interdependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
d. An ecosystem is an area where biotic components (from organic or living source) and
abiotic components (from inorganic or non-living source) interact between interdependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
e. An ecosystem is an area where biotic components (from organic or living source) and
abiotic components (from organic or living source) interact between interested dependent
subsystems within a spatially regulated organisation using energy from the sun and a
variety of raw materials.
Answer:
E
Explanation:
The ocean is the largest reservoir of carbon on Earth. Which of the following would most likely store carbon for the longest amount of time?
Calcium carbonate shells of marine organisms, like coral, oysters, and clams
Dissolved CO2 in surface ocean water
Dissolved CO2 in deep ocean water
Carbon stored in the rocks
Carbon is stored for the longest amount of time as Calcium carbonate shells of marine organisms, like coral, oysters, and clams.
What is the carbon cycle?The carbon cycle is a cycle of how carbon is recycled between the atmosphere and the living and non-living part of the earth.
The carbon reservoir of the ocean forms part of the carbon cycle.
Carbon is stored in the ocean as calcium carbonate shells of marine organisms, like coral, oysters, and clams.
This is the longest time storage form of carbon in the ocean.
Learn more about carbon cycle at: https://brainly.com/question/25845923
In pea plants, two stem lengths are possible: tall (T) and dwarf (t). Tall is dominant to dwarf. a. In a purebred tall plant, what gametes are possible? ___________________ b. In a purebred dwarf plant, what gametes are possible? ___________________ c. What is the genotype of a purebred tall plant? ___________________ d. What is the genotype of a purebred dwarf plant?
Answer:
a. only T gametes
b. only t gametes
c. TT
d. tt
Explanation:
This question involves a single gene coding for stem length in pea plant. The allele for tall stem length (T) is dominant to dwarf stem length (t).
- A purebred is an organism that will only transfer one type of phenotype to its offspring or produce only one type of GAMETE. Hence, to do this, a purebred must have a homzygous genotype. According to this question;
a. A purebred tall plant (TT) will produce only 'T' gametes.
b. A purebred dwarf plant (tt) will produce only 't' gametes.
c. The genotype of a purebred tall plant will be 'TT'
d. The genotype of a purebred dwarf plant will be 'tt'
What is the function of the digestive system?
A. Removal of liquid waste
B. Maintain body temperature and hormone levels
C. Delivers food to your brain
D. Changes food into minerals and nutrients that are absorbed into
bloodstream
Why should everyone be encouraged to take an HIV blood test?
to slow down and prevent it's spread
Explanation:
testing is the only way to know for sure if you have HIV. Knowing your status means you keep yourself and your sexual partners healthy.
A cell membrane is composed of a lipid bilayer in which many kinds of proteins are embedded. These proteins use energy to actively transport certain particles into and out of the cell.
Which example BEST illustrates the condition in which molecules move across the cell membrane through active transport?
A. When molecules need to move from an area of lower concentration to an area of higher concentration.
B. When the cell wall is damaged or genetically modified and molecules cannot enter or leave the cell.
C. When molecules need to move from an area of higher concentration to an area of lower concentration.
D. When the amount of water is higher inside of the cell as compared to the area surrounding the cell.
Answer:
when molecules need to move from an area of lower concentration to an area of higher concentration
when water vapor changes to water, evaporation takes place
Answer:
Explanation:
In the water cycle, evaporation occurs when sunlight warms the surface of the water. The heat from the sun makes the water molecules move faster and faster, until they move so fast they escape as a gas. Once evaporated, a molecule of water vapor spends about ten days in the air.
6. How can a mutation be beneficial to a bacterium?
Answer: Some mutations have a positive effect on the organism in which they occur. They are called beneficial mutations. They lead to new versions of proteins that help organisms adapt to changes in their environment. ... The mutations lead to antibiotic-resistant strains of bacteria. brainliest?
Explanation:
What was the order of steps taken by the United States to clean the air?
enact the Clean Air Act, establish funding to study how to clean the air, create the EPA, and find cost-effective ways to keep the air clean
establish funding to study how to clean the air, enact the Clean Air Act, create the EPA, and find cost-effective ways to keep the air clean
find cost-effective ways to keep the air clean, establish funding to study how to clean the air, create the EPA, and enact the Clean Air Act
create the EPA, enact the Clean Air Act, find cost-effective ways to keep the air clean, and establish funding to study how to clean the air
Answer:
A
Explanation:
I took the test and got the answer right.
Answer:
Explanation:
a
1) Ultimately, where does all energy come from that plants and animals use? A: Coal B: Natural gas C: Oil D: The sun
if a strand of DNA has the sequence ATGCGATCCGC, then the sequence of the MRNA molecule transcribed from it is
Answer:
DNA: ATGCGATCCGC
mRNA: UACGCUAGGCG
Explanation:
The deoxyribonucleic acid (DNA) is a double-stranded helix, where each strand is composed of four nitrogenous bases: Adenine (A), Thymine (T), Guanine (G) and Cytosine (C). The two strands are held together by hydrogen bonds and they interact in the following way: Adenine (A) always pairs with Thymine (T) through two hydrogen bonds, while Guanine (G) always pairs with Cytosine (C) through three hydrogen bonds. During transcription, a DNA strand of the double helix DNA molecule is used as template to synthesize a complementary RNA molecule, usually, a messenger RNA (mRNA) which is then used to create a protein by the process of translation. Moreover, also during transcription, Thymine (T) bases are replaced by Uracil (U) bases in the RNA molecule.
**HURRY** Because of convection currents, wind (air) moves from high pressure areas to low pressure areas. True or false?
Technology affects the environment in many ways. Which negative impact is NOT due to advances in technology?
A) toxic waste
B) global warming
C) habitat destruction
D) increase in natural disasters
Answer:
d
Explanation:
Im pretty sure that the answer is d because how could technology cause more NATURAL disasters and also i took the USATestprep
5. A pride of lions hunting a dazzle of zebras.
Answer:
lions hunting zebras is a part of nature
Explanation:
A chemist weighed out 101. g of beryllium. Calculate the number of moles of beryllium she weighed out.
Answer:
The correct answer is - 11.209 moles.
Explanation:
According to the definition of moles,
moles = weight/molecular weight
given:
weight of beryllium = 101 g
the molecular weight of beryllium = 9.01
∵ 9.01 g weight of beryllium = 1 mole
∴ 1 g weight of beryllium = 1/9.01 moles
∴ 101 g of beryllium =101/9.01 moles
The = 11.209 moles.
.
8. Which of the following correctly shows one path that energy would
flow through this ecosystem?
Grasses -- Termite -- Monkey -- Eagle
Hyena -- Mongoose - Mouse - Grasses
Grasses - Termite - Grasshopper -- Monkey
Acadia trees - Giraffe
-- Lion -- Vulture
grassses -- Termite -- Monkey -- Eagle
Solve: Suppose an mRNA strand in the cytoplasm has 15
nucleotides. How many amino acids would be in the resulting
protein chain? Explain how you got this number. NO LINKS NO LINKS !!!
Answer:
(Sorry messed up the first time and didnt put an explanation) Four
Explanation:
It is four because there are three nucleotides in a set to make an amino acid. This would make 15 divided by 3, which is 5, but the last one is the code for stop (that is, to tell when a new chain for protiens should start), and that doesn't count as an amino acid.
A diploid cell (2N) in G1 phase of the cell cycle has how many alleles of each gene?
Please help
Answer:
46 chromosomes
Explanation:
I. G1 phase (Gap 1) - Cellular contents excluding the chromosomes, are duplicated. II. S phase (DNA Synthesis) - Each of the 46 chromosomes is duplicated by the cell.
The _____________ receives blood from the atrium and pumps it out of the heart.
Ventricles receive blood from the atrium and pump it out of the heart. The left ventricle pumps oxygenated blood to different parts of the body.
How does the heart pump blood?The heart has four chambers, such as the upper two atriums and the lower two ventricles. The right side of the heart holds the deoxygenated blood, and the left side holds the oxygenated blood.
The deoxygenated blood from different parts of the body is poured into the right atrium through the superior vena cava, inferior vena cava, and coronary sinus. Then, from the atrium, blood moves to the ventricle through the atrioventricular opening.
From the right ventricle, blood moves to the lungs for oxygenation through the pulmonary artery. In the lungs, the oxygenation of blood takes place, and the oxygenated blood comes to the left atrium. From the left atrium, the oxygenated blood comes to the left ventricle. From the left ventricle, blood goes to different body parts through systemic arteries.
Hence, the ventricles receive blood from the atrium and pump it out of the heart.
To learn more about the heart, refer to the following link:
https://brainly.com/question/16566688
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Biotic factors are the _____things in an environment? Multicellular, Eukaryotic, living or used to be living, Non living
Answer:
living
Explanation:
Biotic factors are the living parts of an ecosystem. Because of the way ecosystems work – as complex systems of competition and cooperation, where the action of every life form can effect all the others – any living thing within an ecosystem can be considered a biotic factor. Biotic factors such as soil bacteria, plant life, top predators, and polluters can all profoundly shape which organisms can live in an ecosystems and what survival strategies they use. Eukaryotic unicellular living beings Living beings that are made up of one single eukaryotic
what are some similarities for prophase and telophase
Answer:
Both prophase and telophase have a complete set of chromosomes and organelles.
protest bushes,palm trees and maize plants are all flowering plants ?
Answer:
The great centres of palm distribution are in America and in Asia from India to Japan and south to Australia and the islands of the Pacific and Indian oceans, with Africa and Madagascar as a third but much less important palm region.
Who will be hit the hardest by climate change? A the poorest nations B very wealthy nations C Everyone will be affected the same amount D No one will be affected BY TODAY I MARK BRAINLIEST
Answer:
A..The poorest nations
Explanation:
The rishest of the rich are polluting the world and driving climate change, while the poorest of the poor suffer the greatest consequences, according to a new record published Monday by Oxfam international.
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Explain how running water, groundwater, waves, and glaciers cause erosion and deposition.
Answer:
Water flowing over Earth's surface or underground causes erosion and deposition. Water flowing over a steeper slope moves faster and causes more erosion. Erosion and deposition by slow-flowing rivers create broad floodplains and meanders. Deposition by streams and rivers may form alluvial fans and deltas.
Explanation:
hope it helps
Answer:
Running Water I: Rivers, Erosion and Deposition ... Geophysicists use seismic wave studies, variations in temperature, magnetic fields, gravity, and computer simulations to create models of deep structures. The program provides images of glaciers and glacial landforms such as moraines
Explanation:
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what is the biologist ?
Answer:an expert in or student of the branch of science concerning living organisms
Explanation:
Rates of extinction tend to be higher on islands than on the mainland.
O True
O False
Answer:
True.
Explanation:
In biogeography, extinction is the ending of the existence of some species or other taxonomic group. It is a normal natural phenomenon. Species are becoming extinct because the factors that keep the population small, such as diseases or predators, are increasing, because their living environment is changing drastically due to climate change, for example, or because competition is increasing.
Thus, if these species are enclosed in small and dead-end territories, such as an island, their extinction will be easier, since they will not have the possibility of migrating (except for birds) or expanding territorially.