Answer:
(A) is correct option.
The statement that describes the F2 generation in Mendel's experiments is three times as many tall plants as short plants.
MENDEL'S EXPERIMENT:
Gregor Mendel who is referred to as the father of genetics crossed two parents that are pure breeding for specific traits. The F1 generation consists of offsprings that are all dominant. The F1 generation was self-crossed to produce F2 offsprings. The offsprings of the F2 generation has 3 dominant (tall) and 1 recessive (short) trait i.e. 3 tall : 1 short. Therefore, the statement that describes the F2 generation in Mendel's experiments is three times as many tall plants as short plants.Learn more at: https://brainly.com/question/3056662?referrer=searchResults
A population is growing at a rate of 2,4, 8, 16, 32. Which type of growth does this describe?
Answer:
C: Exponential growth
Explanation:
In Biology, economics and Mathematics, exponential growth means when the increase in population is happening at constant rate and it is positive.
So as we can see in the example that growth rate is almost doubling in each cycle, or it can be expressed as 2^1, 2^2, 2^3, 2^4, 2^5.
We also use a formula for deriving and expressing population's exponential growth: Nt = N0 exp (r.t)
Here Nt indicates the number of organisms of a subject population in a certain time t, where r indicates the intrinsic growth rate and t being the time. The expression () is the Euler constant with value 2.718.
Hope it helps!
Answer:
Exponential rate
Explanation:
The given sample population is:
2, 4, 8, 16, 32
We have just two types of growth rate, linear and exponential growth rate. Linear growth rate inceases by a common or a constant difference. For example, given a set of values:
1,2,3,4,5 : we see that each value increases by 1
For exponential growth rate the values increase by a constant ratio. For example:
1, 4, 16, 64: we see a constant ratio of 4
From the given set of values, a constant ration best fits the increment. The ratio factor is by 2. This is an exponential growth rate.
one example of physical aspect of environment.
Answer:
Soil, rivers, mountains, lakes etc
Explanation:
The physical environment encompasses the natural and man made part of the environment. Examples are mountains, lakes, valleys, rivers, etc.
The physical environment supports the activities of other components of the environment. All the bioitc and abiotic factors interacts to furnish this aspect of our environment.
This aspect of the environment helps to regulate and gives a balance to other aspects of the environment. We should note that all aspects of the environment constantly interacts with one another and are not independent of each other.
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These include all vegetation, microorganisms, soil, rocks, atmosphere, and natural events. Universal natural resources and physical phenomenon which lack clear-cut boundaries. These include climate, air, water, energy, radiation, electric charge, and magnetism.
are you an Indian...... !!!
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Put the stages of fossil fuel formation in their correct order pleaseeee.
* Natural gas is forced into crevices or
sedimentary rock pores.
•Oxygen is used up or expelled.
•Amount of heat dictates physical state of
fuel
•Material is buried in sediment and silt.
•Heat and pressure are applied.
•Organic material decomposes
Answer:
Explanation:
•Material is buried in sediment and silt.
•Organic material decomposes
.Oxygen is used up or expelled.
•Heat and pressure are applied.
•Amount of heat dictates physical state of fuel
* Natural gas is forced into crevices or sedimentary rock pores.
For fossil fuels to form, the correct natural processes must play out in a geologic formation. Fossil fuels are sourced from materials that becomes buried in sediments usually in a sedimentary basin. In the basin, the organic material decomposes in the presence of oxygen. With increasing compaction and burial, the oxic environmental cuts off and the decomposition ceases. As burial continues, heat and pressure is applied to the formation and natural gas is produced. The amount of heat dictates the physical state of the fuel that would be produced be it solid, liquid or gas. The fuel is then forced into reservoir rocks through traps.
Answer:
The correct answer is
-Organic material decomposes.
-Material is buried in sediment and silt.
-Oxygen is used up or expelled.
-Heat and pressure are applied.
-Amount of heat dictates physical state or fuel.
-Natural gas is forced into crevices or sedimentary rock pores.
Explanation:
For PLATO students
Explain how a chromosome condenses at the beginning of mitosis
Answer:
answer in explanation:
Explanation:
Chromosomes must condense at the beginning of mitosis so they can be separated, with relative ease, into equivalent halves. Chromosomes adopt a compact form to make them suitable for transport.
Condensation also organizes the DNA molecule in such a manner that the chance of the molecule being broken and/or lost is minimized. If the chromosome breaks in one way or another, mutations occur.
As an object travels around the sun or other large object, it travels on a fixed path that is
called its
A. period
B. orbit
C. perigee
D. revolution
Answer:
B. orbit
Explanation:
As an object travels around the sun or other large object, it travels on a fixed path that is called its orbit.
Which of the following is a compound? A.)Ne B.) N2 C.) NaCl D.) O2
Answer:
c. NaCl is a compound
Explanation:
HELP!!! Coral bleaching events are occurring in coral reefs around the world. Which statement best describes how human activity will likely continue to cause a loss of reef biodiversity
Answer:
A.
Explanation:
As humans continue the terrible actions on the ocean, the more the fish and other forms of life are forced into a smaller space, and then killed in the only space they have.
Answer: Option B
Explanation:
Ocean acidification is being the greatest threat to coral reef now a days, this is because the human activity is increasing the rate of carbon dioxide production in the atmosphere.
The coral reefs are experiencing degradation due to ocean acidification which causes rise in temperature due to increased concentration of carbon dioxide in water.
Hence, option B is correct.
how have antibiotics changed the quality of life of for humans over the past Century
Answer:
Antibiotics have helped in a speedy recovery for human illnesses over the past century.
Explanation:
Because anti biotics were not present centuries ago, many would get sick and even die. However, antibiotics work by affecting things that bacterial cells have but human cells don't. This helps to fight off the bacterial cells and fight infections and viruses, leading to a speedy recovery.
19. RNAi is a technique that silences genes by targeting them and degrading their mRNA. How can this technique be used in scientific
laboratories?
A. RNAi allows scientists to turn off one gene specifically to study its effect.
B. RNAi is observed in nature, but it can't be used in laboratories
C. RNAi has been used in laboratories to make bacteria more susceptible to antibiotics, but has limited application in eukaryotic cells
D. RNAi is a powerful tool for degrading mRNA, but because it doesn't degrade other types of RNA, its use is limited.
Answer:
RNAi allows scientists to turn off one gene specifically to study its effect.
Explanation:
RNAi is widely used technique for silencing the genes by targeting them and then degrading their mRNA. It silence the genes so that their functions could be studied. It is extensively used in research and can be utilized for any gene just by designing RNAi for that specific gene. It can silence a single genes which make it more useful not only in labs but also in therapeutic approaches for treatment of diseases, cancers etc.
Which two animals are able to generate internal heat to maintain their body temperature in a cold environment?
Put the following levels of organization in order from smallest to largest: ecosystem, biome, population, biosphere, biological community, and organism.
Organism
Population
biological community
ecosystem
biome
biosphere
PS:increasing order
Population is a group of organisms of d same species
A biological community is the population of organisms living together and interacting in a given area
Ecosystem is the interaction between living and non living organism in a community
Biomes are biological communities that are formed in response to a shared physical environment
Biosphere is the part of the earth that contains living organism
The levels of organization in order from smallest to largest is - Organism, population, biological community, ecosystem, biome, biosphere
There are different levels of organization in every system including the biological system or ecological systems. In this case, there are various levels of the ecological system where:
Organism - an individual in a population that is a unit level and smallest in a particular organization.Population - a group of individuals within the particular species found in a specific area, and able to reproduce.Community - group of two or more species in a population found in a geographical area.Ecosystem - a community where the interaction between biotic and abiotic (non-living) components.Biome - an ecological area with the same climate and biodiversity that may have multiple ecosystems within it.Biosphere - all living organisms along with the spheres, interact with different geosphere.Thus, The levels of organization in order from smallest to largest is - Organism, population, biological community, ecosystem, biome, biosphere.
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What will a hypothesis become if it supported by repeated experimentation
Answer:
A hypothesis can become a scientific theory if it is supported by repeated experimentation.
Answer:
Sample Response: Corn starch, one of the covalent compounds, is solid at room temperature. The property of being solid is more common to ionic compounds. So, the hypothesis was mostly supported except for this one data point.
Which hotel do you think is most likely to move ahead in market competition?
A. a hotel that provides basic amenities
B.a hotel that provides luxurious amenities
C.a hotel that shows understanding of customers' latent needs
D.a hotel that gives discounts
Answer:
c
Explanation:
if they dont care about what you want it cant be a good hotel
A hotel that shows an understanding of customers' latent needs is most likely to move ahead in market competition. Thus, the correct option is C.
What is the market competition?Market competition may be defined as an environment in a business where different firms have to compete with one another on the accounts of their merits of goods and services.
If a hotel does not represent the basic or luxurious needs of the people, it will definitely move ahead in the market competition.
Therefore, the correct option for this question is C.
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camels have adaptations that allow them to survive in the hot desert. match the benefits to the adaptations.
Explanation:
-They have a thick coat of hair to protect them from the sun.
-They have a wide, soft feet sothat they can walk for a long time in hot sand.
Answer:
1st > protects from predators
2nd > provides energy source
3rd > maintains homeostasis
Explanation:
Why are there hundreds of different protein channels?
A. they work for different molecules
B. The cells make multiple protein channels just in case one dies
C. In case molecules have to go from a low to high concentration
D. Smaller molecules will go through protein channels to save space
Answer:
I think that the answer is A
I'm not 100% sure though sorry. Hope this helps.
They work for different molecules.
Why are there different protein channels?
This carrier protein type allows cells to transport materials using the ion gradient they build with other ATP carrier proteins. The major difference between a channel protein and a carrier protein is stereospecificity. While channel proteins only allow certain-sized molecules to pass, they do not bind the molecules.
Are there hundreds of different protein channels?There are many different types of channel proteins in your body, and each one will only let specific types of molecules pass through.
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Which of the following statements is true of cartilage and bone development?
A. Some cartilage becomes bone through ossification during childhood development.
B. Cartilage produces white blood cells, which are necessary for immune system health.
C. Cartilage is in the nose and ears, and cartilage can't become bone.
D. Cartilage is the primary material responsible for moving sharks' bones.
Answer:
A. some cartilage becomes bone through ossification during childhood development.
Explanation:
Ossification is a process of bone remolding, this starts from fetal stage and continues up to adolescence. The cartilage cells are replaced by the osteoblasts for the formation of bones in the cluster form.
Answer:
option: A
Explanation:
The ossification process allows the formation of new bones in the body. The process begins from the fetal stage and it continues till adult age. The osteoblasts cell replaces the dead cartilagenous cells.
The hematopoietic stem cell synthesizes WBCs not cartilage. The cartilage can easily be transformed to a bone.The cartilage is not primary material for moving shark bones. As the baby grows the small bones fuses with each other thus forming large bones. So the option A is correct.
During the first phase of the ovary cycle, the ______ matures within a follicle
A. Vulva
B. Uterus
C. Ootcyte
D. All of the above
Answer:
C. Ootcyte
Explanation:
During the first phase of the ovary cycle, the Ootcyte matures within a follicle.
Answer:
Oocyte
Explanation:
The cortex of ovaries has many follicles and each follicle contains an immature egg in various developmental stages. The immature egg present in the follicle is called oocyte.
The first stage of the ovarian cycle, that is the follicular phase is marked by the beginning of the development of oocytes in several follicles under the influence of follicle stimulating hormone.
However, only one follicle continues developing. By the end of the follicular phase, the mature follicle (the Graafian follicle) bears secondary oocyte in its fluid-filled cavity.
Genes are segments of dna that determine the phenotype of an individual
ANSWER:
The statement is True. Genes are "segments of DNA" and help in determining the phenotype of an individual.
EXPLANATION:
Phenotype or the physical features and behaviour of organisms are determined by their genes. Genes as segments of DNA contain "codes" for the production of "proteins" that determine the various characteristics of an individual. Genes are located on chromosomes and can exist in different forms. Gene is considered to be the "basic unit of heredity" and determines the characteristics that pass from parents to the offspring.sexual reproduction helps a species to be successful because
Answer:
The fact that most eukaryotes reproduce sexually is evidence of its evolutionary success. In many animals, it is actually the only mode of reproduction. The genetic diversity of sexually-produced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.
Sexual reproduction is crucial for the success of a species because it results in genetically diverse offspring.
Sexual reproduction creates genetically diverse offspring, providing species with a greater ability to adapt to environmental changes and increasing their chance of survival. This diversity provides a better chance for survival in a changing or unpredictable environment, giving rise to a wide range of phenotypes through the combination of genetic material from two individuals. Despite the limitations of requiring both sexes for reproduction, which can impact colonization of new habitats, the benefits of this genetic variation are imperative. It allows for a population to have individuals who might be better adapted to new challenges and also offers a mechanism for selective adaptation.
The mechanisms of meiosis and fertilization enhance genetic variation, a concept often referred to as the Red Queen Hypothesis. This genetic variance acts as a buffer against extinction, as it increases the likelihood that some individuals in a population will possess advantageous traits to adapt to new environmental pressures. Sexual reproduction also allows for the introduction of genetic bottlenecks that can eliminate deleterious alleles from a population and quickens the appearance of beneficial allele combinations.
What is the ratio of surface area to volume for a sphere with the following measurements? Surface area = 588 m2 volume = 1372 m3
Answer:
Ratio = 0.43/m
Explanation:
Given parameters:
Surface area of sphere = 588m²
Volume of sphere = 1372m³
We are solving for the ratio of the surface area to volume. This ratio is very important in so many life processes in both plants and animals.
Ratio = [tex]\frac{Surface area of sphere}{Volume of sphere}[/tex]
Ratio = [tex]\frac{588m^{2} }{1372m^{3} }[/tex]
Ratio = 0.43/m
In which location would the rate of soil erosion most likely be higher than the rate of soil formation?
A. A tropical area with moderate rainfall
B. A temperate forest
C. A steep slope
D. A river delta
Answer:
C. A steep slope
Explanation:
Erosion is the removal of the top layer of the earth or the gathering of lose weathered materials from rock surfaces.
Agents of erosion are wind, water, glacier and gravity.
Along a very steep slope, erosion is highly rife and very prevalent to the extent that everything there is washed away to be deposited at the bottom of the slope or where gradient is more gentle.
On a steep slope, materials moves rapidly and gravity is very great. When these factors are coupled with the prevailing conditions in a place, little to no deposition occurs for soil formation.
The rate of soil erosion would most likely be higher than the rate of soil formation on a steep slope due to the increased movement of soil and reduced water infiltration, leading to limited soil development.
Explanation:The rate of soil erosion is likely to be higher relative to the rate of soil formation in locations with certain topographical features. An example where this would occur is on a steep slope. Steep slopes tend to have more soil erosion, less water infiltration, and limited soil development due to the force of gravity acting on loosely held soil particles, leading to more rapid and frequent soil movement. The correct answer to the student's question is C. A steep slope. In contrast, a tropical area with moderate rainfall, a temperate forest, and a river delta would typically have higher rates of soil formation and better conditions for soil stability.
what do proteins, nucleic, acids, and carbohydrates all have in common
Answer:
oxygen is common in them
Explanation:
ozygen is common in all of rhem
Answer:
Proteins, nucleic acids, and carbohydrates are macromolecules present in living organisms.
These molecules are composed of carbon atoms bonded together. These carbon atoms also bind to other elements such as hydrogen, oxygen, nitrogen and phosphorus. Each type of molecule has its own composition of different proportions.
A gardener places extra nutrients in the soil of a flower bed to make the
flower grow faster. Through which tissue would the nutrients first move into
the flower?
A. Chloroplasts
B. Phloem
C. Xylem
D. Amoeba
ANSWER:
Through xylem, the nutrients first move into the flower.
EXPLANATION:
The roots of the plant are responsible for absorbing water and nutrients from the soil. These are then provided to the vascular tissue xylem of the plants.
The xylem then transports all the nutrients to the different parts of the plant. The xylem being one of the two vascular tissues has a role of transporting 'water and nutrients' from soil to different parts of a plant.
Answer:C
Explanation:
What would MOST LIKELY happen if the amount of phytoplankton in the ocean were reduced?
Answer:
The ocean food chain would shrink, as the phytoplankton are the base of the food chain
Explanation:
Atmospheric carbon dioxide levels would increase because phytoplankton are plants that use carbon dioxide in photosynthesis to grow.
Atmospheric oxygen levels would decrease since there would be more carbon dixodie (the carbon dioxide is converted to oxygen and carbohydrates by photosynthesis).
Oceanic pH levels would decrease, that is the ocean would become more acid. This would be due to higher levels of carbon dioxide, which makes carbonic acid when it dissolves.
An accumulation of different sedimentary and metamorphic rocks combined with scraps of ocean crust is called _____. a dome a volcanic island arc an accretionary wedge a fault-block mountain
Answer:
An accumulation of different sedimentary and metamorphic rocks combined with scraps of ocean crust is called an accretionary wedge.
ANSWER:
Accretionary wedge is the accumulation of metamorphic and sedimentary rocks combines with "scraps of ocean crust".
EXPLANATION:
The sediments get accreted onto a tectonic plate which is non-subducting in nature. Most of the components of accretionary wedge include marine sediments and also erosional products of volcano island arcs. Tectonic collisions are the reason for the formation of accretionary wedges. The shape of an accretionary wedge is usually a triangle and continues to grow in size when it reaches critical taper.Identify the three parts that create in amino acid
The carboxyl group, the amino group, and the central carbon that contains the R group.
Hello Rimind, okay?
First good night. ⇔
A protein is made up of amino acids. Picking up the word amino acid, and breaking it in half, will turn into: amino + acid.
Every time you find:
C = O
l
OH
It will be acidic, carboxylic acid.
Every time you find:
NH₂
It will be Amino / Amine.
Being:
C = O
l + NH₂ = Amino Acid.
OH
Note:
One part of the amine grouping is basic (Base) and another (acidic), so we can call it amphoteric (Amino acid which can be shared as much as Base, as much as Acid.)
attention :
There are Central Carbon (Alpha) that has four combinations being ultimately radical and is a determinant of one amino acid for the other. To be an amino acid, there are three regions. Always a bond will have an amine grouping, another bond with acid grouping and the hydrogen represented as (H)
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when dna separates into two strands the dna would most likely be directly involved in
Answer:
Replication
Explanation:
DNA unwinds into 2 seperate strands during replication
DNA replication is the process in which DNA makes it copy and incorporate into the daughter cell. Cell division is the process in which the DNA is replicated and transmitted in the daughter cells.
DNA replication is the starts with the formation of a replication fork, in which the helical structure of the DNA is unwinded into two template strands.
The information coded into the template strand is copied into the complementary strand. The process of making a complementary strand from the template strand involves transcription, followed by a translation.
Thus, during cell division, the DNA is replicated and separated into two strands.
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what is the largest populations that an ecosystem an support over time?
a. death rate
b. carrying capacity
c. immigration rate
d. keystone
Answer:
b. carrying capacity is the largest populations that an ecosystem an support over time
Which species is most likely to exhibit clumped dispersion?
Clumped dispersion is a pattern in which individuals in a population are clustered together in groups, which is most commonly observed in animals that live in groups such as elephants.
Explanation:Clumped dispersion is a pattern in which individuals in a population are clustered together in groups. This pattern is most commonly observed in animals that live in groups, such as schools of fish or herds of elephants. For example, elephants travel together in herds and exhibit clumped dispersion.
The wings of the housefly and the bat are_________?
A. analogous structures
B. vestigial structures
D. homologous structures
Answer:
analogous structures
Explanation:
i honestly can't explain