Answers
Answer: Trisomy 21
Expanation: tTe most common chromosomal anomaly in humans, affecting about 5,000 babies born each year and more than 350,000 people in the United States. Also known as Down syndrome, trisomy 21 is a genetic condition caused by an extra chromosome.
Related Questions
Bison eat Prairie Grasses. When organisms are consumed, an estimated 10% of the energy in the food is fixed into their flesh and is avallable for the next trophic level. Assume the biomass of the prairie grasses at the bottom of your trophic pyramid is 1,000,000 Kg. Predict the approximate biomass of the bison. Show all of your work and clearly label each step, including unit labels.
Answers
Bison, like cows and elk, have four stomachs. While you might think that bison can eat four times as much as animals with only one stomach, this is not the case.
What exactly is prairie grass?Prairies are large expanses of flat or rolling grasslands. These grasslands in Minnesota range from sparsely vegetated sand dunes to vast fields of big bluestem up to 8 feet tall, from wet meadows to shortgrass prairies high on the Minnesota River bluffs. Anthropogony Girardi (big bluestem), Panicum virgate (switchgrass), and Sorghastrum nutans are the dominant grasses in the tallgrass prairie (Indian grass). A type of grassland known as mixed-grass prairie exists between the short-grass and tallgrass prairies. The true tallgrass prairie, on the other hand, is dominated by four species: Little Bluestem, Big Bluestem, Indian grass, and Switchgrass. These four grasses are commonly found with a variety of grasses that are too numerous to name.To learn more about prairie grass, refer to:
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What terms refers to the change in the characteristics of living organisms over time ?
Answers
Evolution consists of changes in the heritable traits of a population of organisms as successive generations replace one another.
Answer: Evolution
An ecosystem consists of all the interacting species and the abiotic environment in a given geographic area.Group of answer choicesTrueFalse
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The ecosystem comprises of different biotic and abiotic factors. Biotic factors are all the living things in the ecosystem. Abiotic factors are the non-living parts. These factors interact with each other in order to maintain balance in a certain environment.
Answer - True
Need help with this question will global warming have catastrophic effects?
Answers
Global warming is predicted to produce an increase in extreme temperatures and it is caused mainly by an increase in CO2 levels. The increasing temperatures are likely to cause a modification in air circulation patterns and increase evaporation, among others. These have consequences over climate and produce an increment over frequency and magnitude of extreme climatological events (like hurricanes). Also, global warming leaves no place for adaptation (as it is fast compared to biological adaptation), so many species are likely to go extinct, with important ecological effects. I consider these to be catastrophic effects.
True or False: Blood sugar would be higher than normal if the receptors for insulin were more likely to bind insulin.
Answers
Answer:
true
Explanation:
Insulin can bind to the receptors for IGF-1 and 2 but with much lower affinity (10−2 and 5x10−3) respectively.
*Explain thoroughly how deforestation affects the fertility of the impacted land?*
Answers
Deforestation can have destructive effects on soils. Trees and shrubs shield the ground from the force of raindrops and provide shade that reduces surface soil temperature, which in turn reduces evaporation. Logging and small-scale removal of trees exposes soil to rain splash which loosens and dislodges soil particles, eroding soil and creating a more impermeable bare surface, which increases runoff.
It was found that the majority of soil fertility indices were affected negatively by deforestation and more than half of the organic matter was lost to deforestation, which, in turn, could lead to deterioration in soil quality or land productivity capacity.
Which organ in the human body do you think is the most important? Explain.
Answers
Answer: The brain
Explanation:
The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings—all the things that make us human.
yes, i agree that it is your brain, *including every other organ you can't live without Imao* your brain is responsible for you walking, reacting to heat or whatever reaction. while you can't live without your heart, which is a common answer for this question, your nervous system has to be functioning properly (which is what your brain assists in) for your heart to pump correctly.
What iS one condition that must be met for a population to be in genetic equilibrium?
A.
There iS a large amount of gene flow.
B.
There is a high mutation rate.
C.
There IS no genetic drift.
D.
There iS nonrandom mating.
Answers
Answer: The answer i think is right is c but i am not sure i am right:)!
Explanation:
Which of the following characteristics correspond to homologous chromosomes?
Select all that apply.
-Separated during mitosis
-Replica of a single chromosome
-Maternal and paternal pairs
-Attached to one another by cohesin
-In humans, there are 23 pairs of these
-Formed during interphase
-Numbered in a karyotype
Answers
According to the research, the correct option is Maternal and paternal pairs. It is a characteristic that corresponds to homologous chromosomes.
What are homologous chromosomes?They are the carriers of the genetic material, that is, of the information encoded by deoxyribonucleic acid.
In this sense, these chromosomes form a pair and recombine during meiosis, they have the same structure and the same loci but different alleles, since each one comes from a parent.
Therefore, we can conclude that homologous chromosomes are the same in their morphology, formed by a paternal and a maternal chromosome.
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How many atoms total are found in 4C2H6
Answers
Answer: Molecular Weight of 4C2H6
120.2762 g/mol
The molar mass and molecular weight of 4C2H6 is 120.276.
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Some specifically selected hormones, cholesterol, LDL and iron enter cells via
A) exocytosis
B) endocytosis
C) pinocytosis
D) receptor-mediated endocytosis
Answers
Answer:
B) endocytosis
Explanation:
Endocytosis is the process through which things pass through the cell membrane and into the cell.
Endo = internal, within
Cystosis = referring to cells
Some specifically selected hormones, cholesterol, LDL and iron enter cells via Endpcytosis.
Thus, Some plasma-membrane proteins can be efficiently absorbed and concentrated through endocytosis linked to clathrin coating.
This method transports iron-loaded transferrin protein and cholesterol-containing LDL particles linked to these receptors into the cell, and it also internalizes the low-density lipoprotein (LDL) receptor.
By using electron microscopy, it is possible to see the characteristic basket-like structure that the clathrin coat that forms on these structures creates. It is thought that the polymerization of the clathrin coat promotes changes in membrane curvature, surface membrane deformation, and vesicle formation.
Thus, Some specifically selected hormones, cholesterol, LDL and iron enter cells via Endocytosis.
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Without albumin in plasma, what will happen? (Multiple answers)
A. Water will leave the blood vessels.
B. Water will be urinated out of the body at a greater rate.
C. Tissues will swell with water.
D. Blood volume and pressure will be reduced.
E. Blood volume and pressure will be elevated.
Answers
Answer:
water will leave the blood vesseld
What happens to this enzyme when the pH rises above 11?
graph with pH on the X axis and rate of reaction on the Y-axis. The
curve begins as pH 3, peaks at pH 7, and ends at pH 11.
A The enzyme no longer functions.
B The enzyme function increases.
C The protein structure remains stable.
D The protein continues to function as normal.
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Answer:
the enzyme get denatured since the optimum temperature has been exceeded therefore enzyme function slows
Why is it important to eliminate air bubbles from the slide?
Answers
Answer:
Air bubbles will create distortion in the slides causing them to give misleading information. It can also cause the organisms to move around when they shouldn't.
Which is NOT a phraseused by Darwin to describeevolution?A. "natural selection"B. "survival of the fittest"C. "struggling for existence"D. "evolution is artificial"
Answers
Let's recall what Charles Darwin found:
He stated that natural selection plays a huge role in evolution. He claimed that organisms that had the best traits well-adapted for their specific ecosystem would be able to survive the longest (the most fitness and also known as "survival of the fittest").
Also recall what happens in an ecosystem and food webs as well as the logistical growth equation:
[tex]\frac{dN}{dt}=r_{max}N\bigg(\frac{K-N}{K}\bigg)[/tex]Ecosystems have only so many amounts of resources, or limited resources. Therefore, organisms within the same ecosystem will compete for these resources. These organisms will struggle and fight to survive. They either adapt or they get killed off.
Therefore, the best answer choice that doesn't describe Darwin's statements about evolution is answer choice D.
In one to two sentences, explain why there is more concern for severe storms in low-pressure systems.
Answers
The low-pressure areas have a relatively thin atmosphere and that causes air to rise fast to make clouds. Sometimes, a storm is formed due to air can't move downward towards the surface and instead, it converges. Severe storms are mostly observed in low-pressure areas because it has perfect conditions: the air is thin, high wind speeds, and rapid spiral movement. Warm ocean waters are catalysts for these storms.
How can I find Ways in which we can prevent Deforestation and how can I find solutions given in Specific countries?
Answers
A way deforestation can be prevented could be with socialization campaigns that help more people know, for example, the impacts these practices have upon the wildlife. The solution in specific countries can vary in the sense that different governments implement different practices and depend on the forest's resources differently.
What factors can cause an enzyme to become denatured?A. lonization and pHB. Temperature and HumidityC. Humidity and lonizationD. pH and Temperature
Answers
The correct option is D. pH and temperature
Enzymes can be denatured in different ways:
-decreases in pH
- increase beyond the optimal temperature
A denatured enzyme refers to an enzyme that has lost its normal three-dimensional, or tertiary, structure that means it is no longer able to function.
These are low organs that carry out cell function number 2
Answers
Eukaryotes have a nucleous.
One of the main differences between eukaryote and prokaryote cels is that the first ones have nucleous and se second ones don`t.
What type of food do both chemosynthesis and
photosynthesis make?
Answers
Answer:
Glucose (sugar)
The Hoover dam across the Colorado river contains a large power plant that generates electricity by what type of power?A. hydro-powerB. Solar power C. nuclear power D. geothermal power
Answers
The correct answer is A hydro-power energy.
This type of energy is a renewable energy. A hydropower plant is located always in a river because they are used to transform the kinetic energy of the water and or its gravitational potential energy into power, generating electricity. This process occurs in a turbine.
Which organisms have the type of survivorship curves that reflect the fact that most young survive, and survivorship is high until individuals reach old age?
small plants, like Cleome droserifolia
mammals, like Dall sheep
birds, like white-crowned sparrows
fish, like salmon
Answers
The correct option is mammals, like Dall sheep.
What is survivorship curves ?A survivorship curve refers to a graph showing the number or proportion of individuals surviving to each age for a given species or group. There are three types of survivorship curves as follow:
Type I curves depict individuals that have a high probability of surviving to adulthood. For example, large mammals have type 1 survivorship curves, because they have a. low infant mortality and high rates of survival into old age.
Type II curves also called as intermediate type, it depict individuals whose chance of survival is independent of age. For example, most birds have type 2 survivorship curves birds die more or less equally at each interval of their age.
Type III curves depict individuals that mostly die in the early stages of their life. For example, Trees, small mammals, some birds, oysters, shell fish, many insects, oak tree and fishes exhibit type 3 of survivorship curve because in these species mortality rate is high during the early stages of life.
Small plants, like Cleome droserifolia is a herbaceous perennials also typically display Type III survivorship curves, with a very low seedling survival and a low initial life expectancy,
Thus, from above explanation, mammals, like Dall sheep, is the correct option.
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9. The scientific name of an organism consists of ----- and a ——name. These names are written in——. The ——-name is capitalized and the ——- name is not
Answers
This question refers to Taxonomy, which is a science that studies the naming and classification of organisms.
The answer to the question is:
The scientific name of an organism consists of a genus and a species name. These names are written in Latin. The first name is capitalized and the second name is not.
Which of the following areas of study would be in the branch of earth science
• habitats or behaviors
• rocks or minerals
• heat or motion
• bacteria or cells
Answers
Answer: rocks or minerals
Rock or minerals are in the branch of earth science. It deals with natural chemicals and materials on the earth, and rocks and minerals fit into the category as geology is one of the main areas of earth science.
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What’s the correct answer answer asap for brainlist
Answers
hope this helps <3
Which observation is true about organisms that carry the same genes?A. They will have the same phenotype, even if there are differences inexpression of the genes.B. They will not have the same phenotype, even if the genes are allexpressed the same way.C. They will have the same phenotype, because they will express thesame genes.D. They will not have the same phenotype if there are differences inexpression of the genes.
Answers
The answer would be the letter D. It is because the organism carries the same genotype and will have similar phenotypic characteristics.
IF YOU DO LUOA SCHOOL ANSWER THIS
Explain how God gave us ways to develop our knowledge. Remember to use complete sentences.
Answers
The ways God gave us to develop our knowledge include:
a brain that is able to learn and adapt to near thingshands that are able to acquire new skillsWhat are the special gifts God gave man?God created man to be unique from all other of his creations. The Bible said that God created man in his own image. This means that God has created us to demonstrate and to cultivate his own special qualities such as:
lovewisdomjustice, and powerGod created man with a special brain that is far superior to all other creations.
He also created man with hands to enable him to work with them.
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why is butter white not other colors?
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Butter is a dairy product and is elaborated from milk's fat, if we look at the commercial butter we can see is not pure white but a light yellow, which is the color of animal fat.
What dangers and impacts on the marine ecosystem arise from harvesting fossil fuels such as oil and methane hydrates from the oceans?
Answers
In this case, we have that oil and methane extraction have great impacts on the ocean, as there is always the release of these materials to the surrounding environment causing water pollution, altering the equilibrium of fito and zooplankton the base of the ocean food web, even more, intense human activity in these areas generate fauna displacement and habitat loss. Also in less quantity tend to be a release of methane into the atmosphere which is a powerful greenhouse gas.
What Philosophy (Eastern or Western) do you believe defines you as a Filipino? Why?
Answers
Philosophy and religion in the Philippines are practically Christian, so the philosophy that defines you Filipo is Western.
What is Philippines?The Republic of the Philippines (Republika ng Pilipinas, in Filipino; Republic of the Philippines, in English) is an independent country located in Southeast Asia, whose capital is Manila. Its total area is around 300,000 km², slightly larger than the state of São Paulo. The country's population is about 93.6 million, mostly followers of Christianity, of the Catholic branch, with an important minority following Islam. The official languages are Filipino and English, and the currency is the Philippine Peso. The Philippines is an archipelago of 7107 islands located between Malaysia, Indonesia, Taiwan and China.
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