Answer:
The frequency of the non-taster phenotype among people of European descent is 49% or 0.49
Explanation:
Let us assume that the allele for tasting PTC is T, while that for not tasting PTC is t.
According to the Hardy-Weinberg equation : p² + 2pq + q² = 1
Also p + q = 1
Where p² is the frequency of individuals with the TT genotype for tasting PTC,; wow is the frequency of individuals with the heterozygous allele for tasting PTC, while q² is the frequency of the individuals with tt genotype expressed as the non-taster phenotype since the allele for tasting is dominant over that of the non-taster.
From the information provided 51% of people of European descent are tasters. Also, tasting PTC is dominant over non-tasting. This implies that individuals with TT genotype and Tt genotype will be phenotypically expressed as tasters.
Therefore p² + 2pq = 51% or 0.51
q² = 1 - p² + 2pq
q² = 1 - 0.51
q² = 0.49 or 49%
The frequency of the non-taster phenotype among people of European descent is 49% or 0.49
HELP PLSS!! ILL MARK BRANLIEST!! BE SURE OF YOUR ANSWER
Ocean floor rock samples show that the age of the rock ______ the further the rock is from the mid-ocean ridge.
a. Remains the same
b. Gets older
c. Gets younger
Answer:
Gets older is your correct answer.
Hope it helps!!!
Answer:
I'm pretty positive the answer is C
Which of the following is a measure of the biodiversity of an ecosystem?
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3 facts or more about the moon.
3 facts or more about planets.
Answer:
MOON
The Moon is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits.
The Moon is the second-densest satellite.
The Moon always shows Earth the same face.
PLANETS
A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
What happens to a population if the birth rates and death rates are equal?
population density increases.
population size decreases
population size stays the same
population dispersion shifts from random to clumped
Answer:
Population size decreases
Sharks protect producers (sea grasses)
by
acting as abiotic limiting factors
allowing populations of sea grass consumers
(organisms that eat sea grass) to grow
uncontrollably
keeping the populations of sea-grass.
consumers in check (controlled)
Answer:
bacteria and soil.
Explanation:
basically
10)
What is the global weather phenomenon characterized by unusually cold ocean temperatures in the Equatorial Pacific?
A)
La Niño
B)
El Niña
C
La Niña
El Niño
PLEASE HELP!.............
Answer:
Insect larvae and shrews
Would photosynthesis rates change with the
changing of the seasons? If so, how would
Co2 levels change because of that?
Answer:
The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. ... As a result, plants take more CO2 out of the atmosphere during the warm months when they are growing the most.
Explanation:
If half the K-40 of a rock has
decayed into Ar-40, how old is
the rock?
Answer:
20
Explanation:
40:2=20
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Neurons have long projections to transmit impulses. What is the name of these projections?
Answer:
Answer:
Axon
Explanation:
An axon is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body or soma.
Can I have brainliest, when someone else answers?
Answer:
I agree with the other person who answer
have a good day :)
Explanation:
Multiple Answer
Which of these is evidence for evolution?
a caterpillar changing into a butterfly
a tadpole changing into a frog
horse teeth becoming flatter over time in the fossil record
mutations in DNA
a chicken egg hatching
c. vestigial rear leg bones in whales
different shapes on Galapagos tortoises from different islands
a tailbone in humans
similar bone structure in whale flipper and human hand
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Petroleum and Natural Gas form from which of the following?
A. Radioactive materials
B. Fossilized remains of plants
C. Fossilized remains of marine organisms
D. Elements found deep within the earth
Answer:
Fossilized remains of marine organisms
Doctors found out that you are suffering from a serious disease that can only be cured using stem cell therapy. The doctors explain that both adult and embryonic stem cells can be used in your case. Which of the 2 types would you prefer and why? Use facts about each to support your answer.
Answer:
embryonic stem cells
Explanation:
I prefer embryonic stem cells instead of adult stem cells because embryonic stem cells can be differentiate into any cell type whereas adult stem cells can't be differentiated into other cell type. Due to this feature of embryonic stem cells, it can be used for the therapy and the disease can be cured with the help of these embryonic stem cells. So I prefer embryonic stem cells due to their unique ability of differentiation into any type of cell.
Which of the following is a function of the nucleus?
Answer:
Nucleus controls and regulates the activity of cell eg: growth, metabolism and carries the gene(structure that contain the heriditary information). nuclolie are small bodies often seen within the nucleus.
Explanation:
Curly hair (C) is dominant where straight hair (c) is recessive. If a person who is Cc has children with a person that is cc, what is the probability of their children will have curly hair?
a
0%
b
25%
c
50%
d
75%
Answer: c. 50%
Explanation:
If you draw a punnett square you see that the phenotypes you get are Cc, Cc, cc, and cc. If C (curly hair) is dominant over c (straight hair) then those with the phenotype Cc would have curly hair and those with the phenotype cc would have straight hair. 2 out of 4 have Cc (curly hair) so that's 50%.
If the DNA sequence is GCTCAATTCGACCTA, the complementary RNA
sequence created during transcription is
Answer:
CGAGTTAAGCTGGAT
Explanation:
thymine pairs with adenine and guanine pairs with cytosine
T-A
G-C
Give an example of the law of conservation of mass.
If ur correct i'll give brainliest.
Answer:
In a chemical reaction mass is neither created nor destroyed
Explanation:
HOPE THIS HELPED
Answer:
The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example when wood burns, the mass of the soots, ashes, and gasses equal the original mass of the charcoal and the oxygen when it first reacted
· The role an organism or a population plays in an ecosystem is known
as its -
A. Adaptation
B. Niche
C. Habitat
D. Prey
Answer:b
Explanation:
PLSS HELP!!
What type of succession starts with some soil but then goes through the 10p
steps of succession?
A. Primary Succession
B. Secondary Succession
C. Climax Community
Explanation:
Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction.[1]
Succession after disturbance: a boreal forest one year (left) and two years (right) after a wildfire.
The community begins with relatively few pioneering plants and animals and develops through increasing complexity until it becomes stable or self-perpetuating as a climax community. The "engine" of succession, the cause of ecosystem change, is the impact of established organisms upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one's own environment.[2]
It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe landslide, or by some form of disturbance of a community, such as from a fire, severe windthrow, or logging. Succession that begins in new habitats, uninfluenced by pre-existing communities is called primary succession, whereas succession that follows disruption of a pre-existing community is called secondary succession.
Succession was among the first theories advanced in ecology. Ecological succession was first documented in the Indiana Dunes of Northwest Indiana and remains at the core of much ecological science.[3]
Why are organisms classified into kingdoms, phylum, class, order, family, genus, and species?
Which statement BEST describes the relationship between MPF and the cell cycle?
Answer:
Cyclin blinds with an enzyme to produce MPF cyclin and as its concentration rises, it promotes mitosis.
These maps show land and sea temperature anomalies for September 2011.
Which conclusion do the data in the maps support?
A. Land and sea temperatures were lower than usual.
B. Land and sea temperatures were higher than usual.
C. Sea temperatures in the far north were much lower than usual.
D. Sea temperatures in the far south were much higher than usual.
Answer:B. land and sea temperatures were higher than usual
Explanation:
The correct option is B. The land and sea temperatures were greater than usual overall.
The diagram is a heat map to show the fluctuations in temperature.
What are heat maps?A heat map is a type of data visualization that displays a phenomenon's size in two dimensions using colour. The reader will receive clear visual clues about how the occurrence is clustered or fluctuates over space from the fluctuation in colour, which may be by hue or intensity. The cluster heat map and the spatial heat map are two fundamentally distinct types of heat maps. In a cluster heat map, magnitudes are arranged into a matrix of fixed cell size, where the rows and columns represent discrete phenomena and categories. The sorting of the rows and columns is deliberate and somewhat arbitrary, with the intention of suggesting clusters or depicting them as they are identified through statistical analysis.According to the diagram, both land and sea temperatures were higher than usual.
Learn more about heat maps here:
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What is the best reason that producers are the most numerous group in an ecosystem?
A. Producers produce food energy for themselves and all the other levels
B. There is more room for small organisms than there is for large ones.
C. As energy flows through the ecosystem some anergy is added at each step.
D. Soil and temperature conditions is an ecosystem always favor producers.
Answer:
A is the answer taking the test right now
hope you have a great day
How can we prevent The spread or Disease?
Answer:
here
Explanation:
Wash your hands often. This is especially important before and after preparing food, before eating and after using the toilet.
Get vaccinated. Immunization can drastically reduce your chances of contracting many diseases. Keep your recommended vaccinations up-to-date.
Use antibiotics sensibly. Take antibiotics only when prescribed. Unless otherwise directed, or unless you are allergic to them, take all prescribed doses of your antibiotic, even if you begin to feel better before you have completed the medication.
Stay at home if you have signs and symptoms of an infection. Don't go to work or class if you're vomiting, have diarrhea or are running a fever.
What do you think medical professionals should do to prepare for when antibiotics don’t work any more?
Answer:
medical professionals should prepare for a backup plan i.e they should Always have other antibiotics in store
Which of the following pathways produces a new fertilized egg cell
A one-eyed purple people eater is crossed with a two
eyed purple people eater. All of their offspring have two
eyes. Which trait is dominant?
Answer:
The two eyed
Explanation:
1. How is the property of compressibility of gases used in everyday life? Give an example.
Answer:
Compressibility is reducing the volume by increasing the pressure of a substance like liquid or gas. It is a physical characteristic of a substance especially gases.
Everyday life examples:
(1) LPG - These gas cylinders have compressed natural gas to liquid gas to store and use as fuels.
(2) Tubes of bicycles are filled by the pumps that compress the air.
(3) Carbonated soda filled with the help of compressing the carbon dioxide into the bottle.
4) oxygen bottles in medical institutes for helping the patient to breathe.
When is energy production the highest?
Answer:
Answer:Fossil fuels are the largest sources of energy for electricity generation. Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019.
Answer:Fossil fuels are the largest sources of energy for electricity generation. Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019.Explanation:
Answer:Fossil fuels are the largest sources of energy for electricity generation. Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019.Explanation:The United States uses many different energy sources and technologies to generate electricity. The sources and technologies have changed over time, and some are used more than others. The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.
of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.Fossil fuels are the largest sources of energy for electricity generation
Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019. Natural gas is used in steam turbines and gas turbines to generate electricity.
Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019. Natural gas is used in steam turbines and gas turbines to generate electricity.Coal was the second-largest energy source for U.S. electricity generation in 2019—about 23%. Nearly all coal-fired power plants use steam turbines. A few coal-fired power plants convert coal to gas for use in a gas turbine to generate electricity.
Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019. Natural gas is used in steam turbines and gas turbines to generate electricity.Coal was the second-largest energy source for U.S. electricity generation in 2019—about 23%. Nearly all coal-fired power plants use steam turbines. A few coal-fired power plants convert coal to gas for use in a gas turbine to generate electricity.Petroleum was the source of less than 1% of U.S. electricity generation in 2019. Residual fuel oil and petroleum coke are used in steam turbines. Distillate—or diesel—fuel oil is used in diesel-engine generators. Residual fuel oil and distillates can also be burned in gas turbines.
Which of the following is a possible path for carbon to cycle through an ecosystem?
1. Atmospheric CO2 -> animals -> factories -> fossil fuels -> plants
2. Atmospheric CO2 -> factories -> fossil fuels -> animals -> plants
3. Atmospheric CO2 -> plants -> animals -> fossil fuels -> factories
4. Atmospheric CO2 -> fossil fuels -> factories -> animals -> plants
Answer: 3. Atmospheric CO2 -> plants -> animals -> fossil fuels -> factories
Explanation:
The carbon cycle is one of the types of biochemical cycles in which carbon is recycled in atmosphere, biosphere, lithosphere, and hydrosphere in various forms. The atmospheric carbon dioxide is absorbed by the plants and they utilize it as reactant for the process of photosynthesis in which they synthesize their own food. These plants are consumed by animals further when these plants and animals die their remains form fossil fuels deep beneath the earth crust. It takes about millions of years for fossil fuels to form in the sedimentary rocks. The fossil fuels are utilized by the factories to run their machines. Again when fossil fuels burn they emit carbon dioxide gas in the atmosphere.