Answer:
females have 2X chromosomes but males have one 1Y and 1X chromosome therefore if the male donates the x chromosome the baby will be a girl
Environmental factors can influence natural selection because they can increase or decrease and what can they increase or decrease in
Environmental factors can influence natural selection because they can increase or decrease and what can they increase or decrease in the amount of genetic variation in a population.
What is natural selection?Populations of living things adapt and change through a process called natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways. Because of this variety, some people have characteristics that suit their surroundings more than others.
Four requirements must be met for natural selection to take place: reproduction, inheritance, variety in physical traits, and variation in the number of children produced by each person.
Reproduction:
A population must procreate to produce a new generation in order for natural selection to affect it. Over many generations, people who have the characteristics that are most compatible with their environment tend to breed more than people who don't.
Heredity:
Since the genes of the parents combine to form the DNA of their offspring, heredity and reproduction go hand in hand. Natural selection must operate if parents with favourable qualities pass those traits on to their kids.
Variation in Characteristics:
Only when individuals within a community differ in their personal features can natural selection take place. For instance, different people must have varied colors in order to research natural selection on color within a population. There wouldn't be any traits for nature to "select" over others in the absence of variety in traits.
Fitness Variation:
Compared to its popular notion, fitness has a more technical meaning. Fitness in the context of evolution refers to an organism's capacity for maximum survival and reproduction. Natural selection cannot take place in a population unless its individuals have varying levels of fitness. Some people must have characteristics that make it easier for them to survive and procreate more frequently than others. Otherwise, natural selection cannot act to increase the number of people with advantageous features and decrease the number of people with undesirable qualities.
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Binomial nomenclature gives people their first and last names, such as John Doe
True
False
Answer:true
Explanation:
Answer:
False.
Lets look about a Binomial nomeclature.
Explanation:
Binomial NomenclatureThis is the scientific system of naming organisms whereby each name is made up of two latin words;Generic name from the Genus of the organism and Specific name from the Species of the organism.Common examples of organisms names with their scientific names as named by this system includes:Organism Scientific nameHuman being Homo sapiensDomestic cat Felis catusHousefly Musca domestica1. What type of evidence must molecular clocks be compared against to estimate the split from a common ancestor?
The fossil record is the type of evidence that is used with molecular clocks to estimate the split from a common ancestor.
What is a molecular clock?A molecular clock is an estimation of the times of divergence used for the study of biological phenomena.
Molecular clocks are based on fossils found for a given species and the mutation rate of a given genomic sequence.
In conclusion, fossils are used as point of reference to build molecular clocks based on the mutation rate of homo-logous nucleotide sequences for a given taxonomic group for which these fossils belong.
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An immunocompromised host is one who shows a decrease in ______.
An immunocompromised host is one who shows a decrease in the ability to mount an immune defense to infection because the immune system is damaged and it is weak which can not fight infections.
What is immunocompromised host?An immunocompromised host refer to a person whose immune system is weak or damage and does not have tye ability to fight incoming infections.
Therefore, An immunocompromised host is one who shows a decrease in the ability to mount an immune defense to infection because the immune system is damaged and it is weak which can not fight infections.
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Sexual reproduction increases the genetic variation of a species because:
Answer:
Sexual reproduction increases the genetic variation of a species because it involves combining of genetic materials of two parents/individuals to form an offspring.
Explanation:
Sexual reproduction is a type of reproduction that involves formation of an offspring by combination of male and female gametes. Each gamete carries a haploid set of chromosomes. When gametes from both the parents combine, a zygote is formed which has a diploid set of chromosomes. So, sexual reproduction involves combination of genetic materials of two different individuals, hence, it leads to genetic variation.
Which structures are involved in creating insulin inside pancreatic cells and to liver cells
Answer:
i have no idea ....................
Answer:
I think the answer is pancreatic isletsCan anyone tell me the Plant taxonomy Of any 10 flowers with 1 line explanation of each one
Plant taxonomy is the classification of a plant based on different levels (taxa) such as kingdom, division (phylum), class, order, family, genus, species.
What is taxonomy of ten flowers?The taxonomy of few flowers is as follows:
For Rose flower ; Kingdom : Plantae, Division: Magnoliophyta, Class: Magnoliopsida, Order: Rosales, Family: Rosacea, Subfamily: Rosoideae, and Genus: Rosa, Species: Rosa gallica and Rosa canina.For hibiscus flower: Kingdom: plantae, class: Magnoliopsida, Order: Malvales, Family: Malvaceae, Genus: Hibiscus L.For Buttercup ; Kingdom: Plantae ; Division: Magnoliophyta ; Class: Magnoliopsida ; Order: Ranunculales ; Family: Ranunculaceae,Genus: Ranunculus.For California Poppy: Kingdom: Plantae · Phylum: Spermatophyta · Subphylum: Angiospermae · Class: Dicotyledonae · Order: Papaverales, Family:Papaveraceae.For Daffodil: Domain: Eukaryota · Kingdom: Plantae · Phylum: Spermatophyta · Subphylum: Angiospermae · Class: Monocotyledonae.For sunflower: Kingdom; plante, Division;tracheophytes,Class;Magnoliopsida,Order; Asterales, Family:Asteraceae, Genus: Bellis L. – bellis, Species: Bellis perennis L.For tulip: Kingdom; Plantae, Phylum;Spermatophyta, Subphylum;Angiospermae, Class;Monocotyledonae, Phylum:Spermatophyta, Domain: Eukaryota. For balsam: Kingdom; Plantae, Division; Tracheophyta, Class; Pinopsida conifers,Order; Pinales pines, Family; Pinaceae pines, Genus Abies M., Species: Abies balsamea (L.).For lily: Kingdom; Plantae, Division Tracheophytes, Class; Magnoliopsida, Order;Liliales, Family; Liliaceae, Genus; Lilium.For coneflower: Kingdom; Plantae, Division; Tracheophyta, Class: Magnoliopsida, Order: Asterales, Family: Asteraceae, Genus; Echinacea, Species Echinacea purpurea (L.).Therefore, Plant taxonomy is the classification of a plant based on different levels (taxa) such as kingdom, division (phylum), class, order, family, genus, species.
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Reviewing Meiosis:
1. How many cells are present and how many chromosomes are present in the cell at each stage?
start of Meiosis____
end of Meiosis 1_____
end of Meiosis 2____
Start of Meiosis = 1 cell 1 pair of chromosomes
End of Meiosis 1 = 2 cells crossed over chromosome (combined genes 1 in each cell = 2)
End of Meiosis 2 = 4 cells, 1 chromatid in each (4)
I hope it helps!
How does phosphorylation control protein activity?.
Answer:
Phosphorylation offers a dynamic way to regulate protein activity and subcellular localization, which is achieved through its reversibility and fast kinetics. Adding or removing a dianionic phosphate group somewhere on a protein often changes the protein's structural properties, its stability and dynamics.
Explanation:
Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?
The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
What is RNA?This is referred to as ribonucleic acid with its base adenine being paired with uracil.
The mRNA strand which is known as messenger RNA is complementary to the DNA template strand and carries protein information from the DNA to cytoplasm for appropriate translation.
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Aero in aerobic and anaerobic respiration stands for?
Owater.
Ohydrogen.
O carbon.
O oxygen.
The process of ________ helps to ensure that a scientist’s research is original, significant, logical, and thorough.
Answer: peer review
Explanation:
hope it helped :D
What percent of organic matter sink into deeper water where it may be removed effectively from the atmosphere?
The percentage of organic matter which sinks into deeper water is; 10%.
What is organic matter?The percentage of organic matter produced in the euphotic zone and which subsequently, sinks to deep waters is 10%.
This can be attributed to the fact that 90% of the organic matter produced in the euphotic zone is decomposed in the euphotic zone.
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Why is there no output from the photo-electric cell when the RLG is not moved?
There is no output from the photoelectric cell when the RLG isn't moved because the laser beams are 180 degrees out of phase.
What is a photoelectric cell?A photoelectric cell is also known as phototube and it can be defined as an electronic tube (device) that is fitted with a photosensitive cathode, which emits electrons when illuminated, as well as an anode that collects the emitted electrons.
Based on scientific research and experiment, we can logically deduce that there is no output from the photoelectric cell when the ring laser gyro (RLG) isn't moved because the laser beams are 180 degrees out of phase.
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What were the two achievements of the first women’s rights convention at Seneca Falls?
The women’s rights convention at Seneca Falls was the first largest convocation of women of its kind in the United States of America.
What is the women convention?The women convention was the first largest convocation of women of its kind in the United States of America. The subject of discussion was the right of women.
The two main achievements of the convocation were;
1) The launching of the women's suffrage movement
2) The fact that women were later allowed to vote
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Why socialist government turn authoritarian
The reason why socialist governments often turn authoritarian are:
Having too much power eventually corrupts the holder. When resistance builds, they try to suppress it because they feel socialism is the best way.Why does socialism sometimes become authoritarianism?Socialist governments tend to have too much power vested in the Executive in order to properly plan the economy. As a result, they often get corrupted because their power is inhibited.
When this corruption leads to inefficiency, authoritarianism is introduced to ensure that the citizens cannot overthrow the government which wants to keep power.
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Scientists predict that the human population will continue to increase. Which
two events are likely to occur as a result?
A. The amount of water released into streams and rivers will
increase.
B. The amount of natural space will decrease as suburban areas
increase.
C. More people will move to the cities, increasing the amount of
natural space.
D. Air pollution will increase due to increased use of fossil fuels.
Answer:
Air pollution will increase due to increased use of fossil fuels and the amount of natural space will decrease as suburban areas increase.
chlorophyll a molecules absorb ____ light
chlorophyll is a molecule that absorbs red and blue light
What is the chlorophyll?Chlorophyll is a green pigment located in the mesosomes of cyanobacteria and in chloroplasts of plants used in photosynthesis.
The chlorophyll is known to absorb red and blue wavelengths from the sun.
Therefore, chlorophyll is a molecule that absorbs red and blue light.
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How many nuclei do neutrophils have?
Neutrophils have only one nucleus with between two to five lobes present in its cells.
What is a Neutrophil?These are granulocytes and comprise of majority of the white blood cells found in the body.
They however have only one nucleus but are multi lobed in their structural composition thereby making it the most appropriate choice.
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which of the following was a social cost associated with the devolpment of the internal combustion engine used in most cars?
Option:
A. People were able to use their horses for new tasks.
B. New jobs were created.
C. Blacksmiths needed to gain new skills to continue working.
D. Families were able to travel farther more easily.
Answer:
Blacksmiths needed to gain new skills to continue working. Thus, the correct option is C.
What engineer Nikolaus August Otto developed?Engineer Nikolaus August Otto developed the first four-stroke internal combustion engine and established the Otto cycle, a well-known theoretical cycle that governs the operation of explosive engines.
Otto's engine outperformed the steam engine in use at the time in a number of ways. One of them is their light weight, as steam engines need large water reservoirs and fuel to burn in order to heat the water, which in this case would be charcoal or firewood. In addition to being light, the internal combustion engine consumed little fuel, even benzene. Another factor was Otto cycle internal combustion engines' power, which also outperformed steam engines in terms of size ratio.
These benefits put pressure on the automotive sector to build vehicles with this kind of technology. Blacksmiths were compelled to learn new skills in order to use this new technology.
In addition to being light, the internal combustion engine consumed little fuel, even benzene. Another reason was Otto cycle internal combustion engines' power, which also outperformed steam engines in terms of size ratio.
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In which of the following ways did Rome limit the consuls' power?
A. Consuls held unlimited power.
B. The consuls served for only one year terms.
C. Consuls were forced to leave Rome for four years following their terms as consul.
D. Consuls were chosen by lot.
Answer:i believe the answer was D
Explanation:i think it is
When HUMAN BEINGS drown in the ocean and cannot survive, animals such as WHALE and SHARK can. Explain why.
Answer:
Because a whale and a shark are water animals and have special gills for breathing under water and humans are land animals
Explanation:
Answer:
Whales And Sharks have biological features (Gills and etc.) that give them the ability to "breathe" underwater. Humans do not.
Explanation:
Humans don't have the biological features necessary to breathe underwater (without man-made equipment)
what does the immune system protect the body against
Answer:
The immune system defends our body against invaders, such as viruses, bacteria, and foreign bodies.
Explanation:
They protect against harmful germs, parasites (such as worms), or cells (such as cancer).
Select the correct answer from each drop-down menu. cholera is a bacterial infection of the small intestine. vaccination provides protection against cholera. the cholera vaccine is made up of a weakened form of the bacteria that causes cholera. the vaccine will stimulate production and elicit an immune response. if the infection occurs again, the body will produce an even greater attack on the bacteria because of .
The correct option are as follows:
cholera is a bacterial infection of the small intestine.
vaccination provides protection against cholera.
the cholera vaccine is made up of a weakened form of the bacteria that causes cholera.
the vaccine will stimulate production and elicit an immune response.
If the infection occurs again, the body will produce an even greater attack on the bacteria because of acquired immunity.By injecting a heat-killed, weakened organism or its component (antigen) into the body, vaccination aids in the development of immunity. Memory cells and antibodies are produced as a result.Memory cells aid in the development of immunological memory, which helps the immune system to respond to microorganisms that the body has previously encountered with greater strength and efficiency during a secondary immune response.Memory B cells and memory T cells aid in the development of immunological memory.learn more about cholera here: https://brainly.com/question/11346645
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PLEASE HELP. A stovetop burner on medium reaches 95°C. Which will also receive a flow of heat directly from the burner?
A. the surrounding air
B. a burner at the same temperature
C. a pan heated to 100°C
D. hotter water inside a pan
Answer:
Option C, a pan heated to 100°C
Explanation:
The pan on the burner will be in direct contact of the heat released by burner and hence the pan will receive the direct flow of heat from the burner.
However, the water is the pan will be heated by the heat transferred from the pan to the water in it. Water will not receive heat directly from the burner.
Hence, option C is correct
Carbonization is a type of fossilization that:
The characteristic of fossil fuel is that; it creates a 2D film of residue where an organic object used to be.
What type of fossilization is Carbonization?Carbonization as a means of fossilization is characterized by the fact that: it creates a 2D film of residue to replace an organic object used to be. On this note, it follows that the fossil record in this scenario is biased towards preservation of organisms with characteristic hard parts like shells.
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During early research in nuclear energy, why were scientists surprised that the products from splitting a uranium
nucleus had less mass than the reactants?
O They expected that the large release of energy of would cause an increase in mass.
• Up to that time, only chemical changes were known to form less mass than they started with.
O All known changes always started and ended with the same amount of mass.
• Other known nuclear changes resulted in the same mass of products as reactants
Answer:
I think the answer is C. All known changes always started and ended with the same amount of mass.
Explanation:
I hope this helps!
What is Bilogy and give the types of Bilogy?
Answer:
Biology is a branch of science that deals with living organisms and their vital processes.Three major branches of biology are 1. microbiology2.Zoology3.BotanyMicrobiology is the study of microscopic organisms.Zoology is the study of animals.Botany is the study of plants.What is the relationship between biodiversity and an ecosystem's ability to withstand change?
a. closely related
b. directly proportional
c. inversely proportional
d. there is no relationship
Answer:
c
Explanation:
Inversely proportional
1.write the chemical equation for transpiration
2.what is translocation ??,give the chemical equation for translocation
plss help will mark brainlest..
Transpiration is a water balance process mediated by stomata opening. Translocation is the transport process of photosynthetic substances from leaves to other tissues.
What is transpiration?Transpiration is a water balance process.
Through stomata opening and closure (which depends on how hydrated the plant is) water vapor is expelled from the leaves.
If the plant is dehydrated, stomata close. If it is not dehydrated, it opens.By limiting water exit, stomata allow more water molecules to be available for light reaction processes when the plant is dehydrated.
The equation to calculate transpiration is as follows,
E = Gv (Cvs - Cva)
Where,
E is transpiration.Gv is the total vapor water conductance.Cvs is the water concentration inside the leave.Cva is the air water concentration.What is translocation?Translocation is a fast and dynamic process through which photosynthetic products are transported from the leaves to other tissues of the plant to be used or stored.
This transport is done by the phloem cells through active transport or osmosis (depending on the substance).
The translocation of elements from the leaves to the roots is fast.
In conclusion,
The chemical equation for transpiration is E = Gv (Cvs - Cva). Translocation is the movement of photosynthetic products from leaves to other plant tissues.You can learn more about translocation and transpiration at
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