Answer:
c. Malaria
Explanation:
when a tall plant is crossed with a short plant some of the offspring are short. what are the genotypes of the parents?
If the tall plant is heterozygous (T,t) the genotypes would be Tt,Tt,tt,tt.
If the tall plant is homozygous (T,T) the genotypes would be Tt,Tt,Tt,Tt.
hope that helps :)
Explain how burning fossil fuels can lead to a lower ocean pH
Answer:
the process of the ocean acidification is surprisingly simple. Carbon dioxide from the burning of fossil fuels accumulating in the atmosphere, where it causes global warming but it also affects our oceans. As carbon dioxide enters the ocean, it reacts with the sea water to form carbonic acid
Explanation:
I just know
Carbon dioxide emitted by the combustion of fossil fuels piles up in the atmosphere, where it contributes to global warming. However, it also has an impact on our oceans. Carbonic acid is formed when carbon dioxide enters the ocean and reacts with sea water.
What is ocean acidification?The massive amount of carbon dioxide absorbed by the ocean dissolves as carbonic acid in seawater.
This is known as ocean acidification, and it is causing a sea change that is endangering the ocean's fundamental chemical balance.
Carbon dioxide from the combustion of fossil fuels accumulates in the atmosphere, contributing to global warming.
It does, however, have an impact on our oceans. When carbon dioxide enters the ocean and reacts with sea water, carbonic acid is formed.
Acting on climate change and implementing solutions to drastically reduce the use of fossil fuels is the most effective way to limit ocean acidification.
We can reduce the harm to marine ecosystems if we reduce global warming emissions and limit future warming.
Thus, this way, burning fossil fuels can lead to a lower ocean pH.
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2. Oxygen is delivered from the lungs directly to your blood stream
Oxygen enters the bloodstream through the alveoli in the lungs via simple diffusion. Oxygen-rich blood is then circulated through the body by the heart, travelling from the aorta to smaller arteries and capillaries.
Oxygen is delivered from the lungs directly to your bloodstream. This vital process begins when oxygen enters the lungs, then passes through the alveoli, which are tiny air sacs where gas exchange occurs. Here, through the mechanism of simple diffusion, oxygen moves into the blood. The oxygen-rich blood then returns to the heart and is pumped through the aorta.
From the aorta, oxygenated blood is distributed to smaller arteries and finally reaches the capillaries, the smallest blood vessels that deliver oxygen to the tissues. The lungs also play a role in exerting pressure on the air to reduce the oxygen pressure, facilitating this transfer.
In summary, the respiratory system, specifically the lungs, plays a critical role in ensuring that red blood cells pick up oxygen and transport it throughout the body, analogous to trucks on a highway system, with oxygen being the vital cargo.
Oxygen is delivered from the lungs to the bloodstream through a process called gas exchange, which occurs in the alveoli of the lungs.
Breathing In: When you inhale, air enters your lungs through the trachea (windpipe) and flows into the bronchial tubes, which then divide into smaller air passages called bronchioles. Eventually, the air reaches the alveoli, which are tiny air sacs at the end of the bronchioles.
Gas Exchange: In the alveoli, oxygen from the inhaled air diffuses across the thin walls of the alveoli into the surrounding capillaries, which are small blood vessels. At the same time, carbon dioxide (a waste product of metabolism) diffuses from the capillaries into the alveoli to be exhaled.
Oxygen Transport: The oxygen molecules that diffuse into the capillaries bind to hemoglobin, a protein found in red blood cells. Hemoglobin has a high affinity for oxygen, so it readily binds to oxygen molecules. Once bound to hemoglobin, the oxygen is carried by the red blood cells throughout the body via the bloodstream.
Circulation: The oxygen-rich blood is then pumped by the heart to various tissues and organs of the body. In the capillaries of the tissues, oxygen is released from hemoglobin and diffuses into the cells, where it is used for cellular respiration to produce energy.
Carbon Dioxide Removal: As cells use oxygen for metabolism, carbon dioxide is produced as a waste product. Carbon dioxide diffuses from the cells into the bloodstream and is transported back to the lungs, where it is exhaled during breathing out.
This is the complete Question
how oxygen is delivered from the lungs directly to your blood stream ?
Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. The continental crust is lighter and less dense than oceanic crust. Continental crust's density is approximately 2.7 grams per cubic centimeter. Oceanic crust is thinner and the average density is about 3.3 cubic centimeters. When the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. Consider this image of a typical subduction zone. Where would you expect intrusive igneous rocks to form?
A) A.
B) B.
C) C.
D) D.
Answer:B
Explanation:
Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. What is the probability of having offspring that have wrinkled seeds and yellow seed color for the cross RRYY ´ RrYy? 0 percent 25 percent 50 percent 100 percent
Answer:
0%
Explanation:
This question involves two distinct genes; one coding for seed shape and the other for seed colour. The allele for you seeds (R) is dominant over the allele for wrinkled seeds (r) in the first gene while the allele for yellow seeds (Y) is dominant over allele for green seeds (y).
In a cross involving RRYY (homozygous dominant for both traits) and RrYy (heterozygous for both genes), the following allelic combinations of gametes will be produced:
RRYY- RY, RY, RY, RY
RrYy- RY, Ry, rY, ry
Using these gametes in a punnet square (see attached image), 16 possible offsprings will be produced. The genotypes of the offsprings in the ratio 1:1:1:1 will be:
RRYY (4)
RRYy (4)
RrYY (4)
RrYy (4)
According to the question, offspring that have wrinkled seeds and yellow seed color will have genotype: rrYY or rrYy.
This genotype is not one of those that will be produced by the cross between a RRYY and RrYy parent. Hence, the probability of having an offspring with wrinkled seeds and yellow seed color is 0%
Answer:A
Explanation:
When a cell reproduces, it will make copies of what molecule?
Answer:
yes bshdi is no maybe yes
Explanation:
mhm
Which of the following accurately compares nearsightedness and farsightedness? (1.0 points)
A)Nearsightedness results when the image is focused on an area beyond the retina, whereas farsightedness occurs when the point of focus does not reach the retina.
B)Nearsightedness results when the eye is too shallow, whereas farsightedness results in a blurry image.
C)Nearsightedness occurs when the point of focus does not reach the retina, whereas farsightedness results when the image is focused on an area beyond the retina.
D)Nearsightedness occurs when the lens focuses light onto the retina, whereas farsightedness results when the image is focused beyond the retina.
Answer:
C
Explanation:
Nearsightedness is what happens when the image does not reach the retina whereas farsightedness happens when light is focused beyond the retina.
Why are cells differentiated?
O to perform specific functions for the body
so organisms can have a variety of cells in
case they need them
o to allow organisms to decide which cells are
needed each day
DONE
Answer:
to perform specific functions for the body
so organisms can have a variety of cells in
case they need them
Explanation:
Organisms do not decide which cells are needed each day; all cells are inherently needed (at least in the vast majority of cases). To perform specific functions for the body so organism can have a variety of cells in case they need them is the correct answer; we can't have cells all performing the same task; we have a variety of needs.
Answer:A
Explanation:
just did it on edu
A child continues to use hand sanitizer every day. After a while, the child gets sick. What might
have happened and why?
Answer:
The bacteria might have gotten immune to the hand sanitizer.
Explanation:
While the hand sanitizer kills the bacteria, the bacteria starts to learn how it works and how to react when it needs to go up against it. Think of it this way, the hand sanitizer goes to the bacteria and starts to slap it to kill it, but while it is doing that, the bacteria starts to learn how it works and all of its moves. It then uses it moves against it and becomes a SUPER BACTERIA!!!
I really hop this helped, BYE
One way that mining for mineral resources does not damage land is by
Answer:
increasing soil erosion.
Explanation:
Mining for mineral resources is an intensive task that involves disturbing and disrupting the lands where the minerals are found. The process of mineral exploration and eventual mining cause great disturbances to the affected land and one of the damages done to such land is great increase in soil erosion.
Read the article and review the phases of mitosis. Mitosis What are the four phases of mitosis? prophase metaphase anaphase telophase cytokinesis
Answer:
I'm guessing you want the definitions for each of the phases right?
Explanation:
Prophase: Chromatin in the cells nucleus condenses and chromosomes start pairing up
Metaphase: Chromosomes line up at the center of the cell.
Anaphase: The sister chromatids separate and split off from each other to the opposite sides of the cells.
Telophase and Cytokinesis: Membrane starts forming around each set of chromosomes on two opposite sides of the cells. Cell divides into two identical daughter cells.
The four phases of mitosis are -
prophasemetaphaseanaphasetelophaseMitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. These phases take place in strict sequential order, cytokinesis is present in all types of the cell cycle that takes place in the end.
The cell contents to make two new cells - starts in anaphase or telophase.The mitotic phase is a short period of the cell cycle.It alternates with the much longer interphase, where the cell prepares itself for the process of cell division.Thus, the four phases of mitosis are -
prophasemetaphaseanaphasetelophaseLearn more:
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The climate of a region can be influenced by many things, such as the altitude and latitude of a region or the presence of a nearby body of water.
A region that is near a large body of water would likely be_____ in the winter and______ in the summer than a region that is not near water.
Answer:
The correct answer is "warmer; colder".
Explanation:
One of the advantages of living in a coastal zone, or in other words a region near a large body of water, is that the winters are warmer and the summers are colder than regions that are not near to water. Water helps land to heats and cools more slowly, therefore it provides are relatively stable temperature all around the year in comparison to lands that do not have large bodies of water nearby.
A region that is near a large body of water would likely be warmer in the winter and cooler in the summer than a region that is not near water.
Proximity to large bodies of water influences regional climates, resulting in milder winters and cooler summers near water. Understanding Oceanic and Continental climates provides insight into temperature variations between coastal and inland areas. The effect of proximity to large water bodies on climate is significant, impacting temperature moderation and regional climate differences.Areas near a large body of water would likely be milder in the winter and cooler in the summer than regions not near water. Large bodies of water have a temperature moderating effect, leading to more moderate climates in coastal areas.Oceanic and Continental climates are distinguished by their proximity to large water bodies, impacting temperature variations between coastal and inland regions.Proximity to a large water body plays a significant role in moderating temperatures and creating differences in climate between regions near water and those farther inland.Which way does time run on this tree?
A) from the branch tips to the root (top to bottom)
B) from the root to the branch tips (bottom to top)
C) across branch tips, from right to left
D) across branch tips, from left to right
Which organisms are most likely to survive in a population in which disruptive selection is occurring? organisms that have average traits, organisms that have extreme traits, organisms that have the greatest number of offspring, or organisms that are the largest and strongest
Answer:
The correct answer is organisms that have extreme traits.
Explanation:
Disruptive selection is a specific type of natural selection that describes changes in population genetics. In disruptive selection, both extreme values for a trait are favored over intermediate values. As a result, the population is divided into two distinct groups and the variance of the trait increases.
The organisms that have extreme traits are most likely to survive in a population in which disruptive selection is occurring.
Disruptive selection:
The population genetics change is favored by the extreme trait values over the average. This selection divides a population into two groups results in an increase in population.
For Example- If a rabbit population consists of pure black and white-fur traits was put into an area that had very dark black rocks as well as very white-colored stone.
The rabbits with black-furred will be able to hide in the black rocks.The white-furred rabbits will hide in the white rocks, But the gray-furred rabbits would stand out in both of the habitats, and hence they will not survive.Therefore, the organisms that have extreme traits, are most likely to survive in a population in which disruptive selection is occurring.
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Animals that are members of different species and share a habitat peacefully
Answer:
likely have different ecological niches
Explanation:
I did this w while ago
In humans, detached earlobes are dominant over attached earlobes. Do a
Punnett Square between 2 heterozygous people with detached earlobes. Give
the genotypic and phenotypic percentages of the offspring.
Please Help
Answer:
The Punnet Square would be:
With E being detached earlobes and e being attached earlobes
EE, Ee, Ee, ee
So they would have a 75% chance of a child with detached earlobes and a 25% chance of a child with attached earlobes— If both parents are heterozygous.
What are some proposed disadvantages to utilizing DNA technology? Check all that apply.ANSWER IS (reduced effectiveness of pesticides&
gene transfer to nontarget organisms)
cold-tolerant crops
reduced effectiveness of pesticides
gene transfer to nontarget organisms
unintended harm to other organisms
Answer:
all of them except for 1. cold-tolerant crops
Explanation:
just did it.
Answer:
Yes, the correct answers are:
B: reduced effectiveness of pesticides
C: gene transfer to nontarget organisms
D: unintended harm to other organisms
Explanation:
got it right in edg 2020 hope this is of help :)
It is a lovely summer's day in John's greenhouse. Various factors affect the rate of photosynthesis: • light intensity • temperature • carbon dioxide concentration Which one of the factors above is likely to limit the rate of photosynthesis of John's tomato plants? Explain your answer
Answer:
Light intensity
Explanation:
John’s greenhouse for sure wasn’t open. It would have consisted of a closed system. The most important aspect of photosynthesis is the reaction between the light and the chlorophyll( green pigment) of the plant.
The closed system is more likely to permit a reduced amount of light intensity which is more likely to affect the tomato plant’s photosynthetic process.
Answer: light intensity,temperature and Carbondioxide concentration can together affects the tomato plants growth
Explanation:
Photosynthesis is the process whereby green plants produce there own food. It is affected by a number of factors;
Light intensity- Light energy from sunlight is what is trapped by plant and used in the production of ATP( adenosine triphosphate) and NADP which are energy that is available for photosynthesis. when light intensity is low it will affect the rate of photosynthesis in tomato plants
2. Cabondioxide concentration- Co2 is a reactant in photosynthesis and a low concentration will reduce the rate of photosynthesis in the tomato plants
3. Temperature- plants stomach closes and open in response to temperature changes. At very high temperature stomata is always closes to conserve water and this reduces the in flow of carbondioxide hence its also an important factor in the growth of the tomato plants.
List all factors of 90
Answer:
1,2,3,5,6,9,10,15,18,30,45,90,
Explanation:
Factors are numbers you multiply to get another number, All of these numbers will get you 90.
I need answers .what does it mean ????
Answer:
I believe the answer is D.) Geothermal
Explanation: The heat generated by the magma causes heat and geothermal means is heat from the ground
Which of the following is NOT a reason that scientists classify organisms? A to organize organisms B to easily identify organisms C to determine the age of organisms D to ensure the use of a common language
The statement that is not a reason that scientists classify organisms is to determine the age of organisms. Details about classification of organisms can be found below.
What is classification?Classification in biology refers to the system of arrangement of organisms into different groups and sub-groups on the basis of their similarities and differences.
Taxonomic classification involves the following aspects:
Identification of organismsNomenclature of organismsTherefore, this means that the statement that is not a reason that scientists classify organisms is to determine the age of organisms.
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What is the best reason to color-code a map?
O to explain geographic regions to the reader
o to describe geographic regions to the reader
O to help the reader quickly locate geographic regions
o to help the reader briefly sum up geographic regions
I'd say to help the reader quickly locate geographic regions.
Answer:
C) To help the reader quickly locate geographic regions
Explanation:
42/64
Which process requires the presence of oxygen to produce energy ?
Following a volcanic eruption, which event is usually the last one to be
observed?
4 of 4 QUESTIONS
O
Lichens begin to cover bare rock.
Trees begin to grow in thick, rich soil.
Mosses begin to grow in thin, rocky soil.
O Grasses begin to grow in soil with organic matter.
I need it rn!!!!!
Answer:
c - Soil forms when lichens and mosses grow, break down rocks, and die.
Explanation:
right on edge assignment
plz mark brainest it would really help
Following a volcanic eruption, the event which is usually the last one to be observed is trees begin to grow in thick, rich soil. This is the last stage of Ecological succession.
What is an Ecological succession ?Ecological succession is the process of change in the species structure of an ecological community over time.
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what three ways does the respiratory system modify air before it reaches the lungs?
Answer:
The mucus 1.Cleans 2. Warms 3. Moistens the air you breathe
Explanation:
What is the advantage of plant cells having cell walls
Answer:
The cell wall provides a structured shape for the cell, helping the cell retain its form and shape.The cell wall helps to form the plant cell, but it also helps keep much of the internal functions of the cell, such as processing water, inside the plant. It can also provide structure and stability to the plant overall, allowing it to stand upright and rigid.
Explanation:
What contribution to society do microbiologist make?
More microbiologists will be needed to contribute to basic research and solve problems of industrial production. Microbiologists will be needed to research and develop new medicines and treatments, such as vaccines and antibiotics.
2. A cutting is a type of asexual propagation
A True
B. False
Answer:
B. True
Explanation:
The major methods of asexual propagation are cuttings, layering, budding and grafting.
1. Adaptations and variations show evidence of past
a. Evolution
b. Offspring
C. Diversity
d. Fossils
The occurrence of large or small beak size among seed crackers in the absence of medium sized beaks is an example of
1) directional selection
2) disruptive selection
3) normal distribution
4) stabilizing selection
Answer:
2) disruptive selection
Explanation:
Disruptive selection is a type of natural selection that acts against less fit heterozygotes. The disruptive selection can be represented by a decrease in the variance of a trait. In this case, the disruptive selection eliminates the medium-sized beaks, thereby favoring the extreme phenotypes in an interbreeding population.
Final answer:
The situation where seed crackers have large or small beaks, but not medium-sized beaks, is an example of 2) disruptive selection. This selection process favors the survival of individuals with extreme traits over those with intermediate traits.
Explanation:
The occurrence of large or small beak sizes among seed crackers in the absence of medium-sized beaks is an example of disruptive selection. Disruptive selection, also known as diversifying selection, occurs when extremes of a trait are advantageous and the intermediate phenotypes are selected against. Over time, this selection pressure may lead to the population evolving into two distinct species.
In the given scenario, no medium-sized seeds are available, making birds with medium-sized beaks less efficient at consuming resources compared to their counterparts with either large beaks or small beaks. As a result, these birds with medium-sized beaks may have lower survival and reproductive success, leading to an increased frequency of extreme beak sizes within the population.