Answer:
Frequency-dependent selection
Explanation:
Frequency-dependent selection is a type of natural selection where the fitness or reproductive success of a particular phenotype/genotype in the population is dependent on its frequency in the population. This type of natural selection can be both positive or negative. Frequency-dependent selection is a critical process that helps to maintain the genetic variability at population and species levels. A known example of frequency-dependent selection (positive) is the mimicry of butterflies, where selection can favor non-poisonous butterflies that show the same colors as poisonous butterflies.
In the Southwestern U.S., tectonic forces have pushed rocks upward over millions of years to form the Colorado Plateau. As the plateau has risen during this time, the Colorado River has been cutting down through the plateau to form the Grand Canyon.
Development of the Grand Canyon through the uplift of the plateau and erosion by the Colorado River illustrates that
A.
landforms result from constructive forces only.
B.
landforms result from a combination of constructive and destructive forces.
C.
landforms result from destructive forces only.
D.
landforms result from neither constructive nor destructive forces.
Answer:
B. landforms result from a combination of constructive and destructive forces.
Explanation:
The constructive forces are the uplift of the plateau to form the Grand Canyon and the destructive forces are erosion. It takes ups and downs to get anyway with anything.
Answer:landforms result from a combination of constructive and destructive forces.
Explanation:
A particular mountain stream is home to a population of salamanders that are red in color. In the past year, a second population of salamanders that are dark blue in color moved into the same
stream. Scientists researching the stream have recently discovered young salamanders that are red with dark blue patches on their bodies.
What can the scientists conclude from this evidence?
The Salamanders are suffering from a bacterial disease
The salamanders are on the verge of becoming extinct
The Salamanders undergo sexual reproduction
The Salamanders undergo sexual reproduction
Plasmodium is an organism with both sexual and asexual life cycles. Describe the most likely cause of a heritable phenotypic change in some members of a population of asexually reproducing organisms. Explain how repeated exposure of the artesunate-sensitive Plasmodium strain to increasing concentrations of artesunate led to the development of the artesunate-resistant Plasmodium strain.
Answer:
Mutation.
Explanation:
Mutation in the organism's DNA that is passed on to the offspring is that main cause of heritable phenotypic change in some members of a population that reproduces asexually. Repeated exposure of Plasmodium that is sensitive to artesunate strain to increasing dosage of artesunate led to the development of resistance in plasmodium because the genetic mutation occur in the plasmodium that provide resistance against artesunate.
A unicellular eukaryotic organism that infects and lives in insects and vertebrates as a parasite is called plasmodium. They are single-celled organisms that undergo both types of reproductive life cycles.
The mutation caused a heritable phenotypic change in some members of a population of certain type of reproducing organisms.
The mutation in the plasmodium strain can be explained as:Some organisms of certain reproducing type happened to be mutated causing a heritable phenotypic change in their offspring's. When the plasmodium strain was repeatedly exposed to artesunate which altered some of the species in becoming resistant instead of being sensitive.The increased dosage or exposure caused a mutation in some type of certain reproducing strains causing them to be resistant to the amount.Therefore, the mutation caused the heritable phenotypic change.
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If soraya ate the soup on the fourth day could she have gotten sick?
give two reasons that a particular molecule may be unable to cross the plasma membrane
Answer:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.
How can beavers help dry areas? Fill in the inference in the chart.
Beavers help dry places by making dams. The correct inference is 2. Beavers are mammals and they are rodents.
What are beavers?Beavers are mammals and they are semiaquatic animals. They eat trees and other woody plants, apples, grasses, water lilies, clover, giant ragweed, cattails, and watercress are among the soft plants that beavers eat.
The water will be slowed down and allowed to soak into the earth, allowing beavers to create channels and plant trees. In times of drought, any leaks in beaver dams will gradually discharge water into the river, and ponds and wetlands will gradually release water into streams and rivers until they dry out.
Therefore, the correct inference is 2, beavers can make dry land wet by making dams.
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which is an example of a secondary energy source?
a.solar
b.coal
c.electricity
d. nuclear
Answer:
COAL
Explanation:
Secondary energy refers to the more convenient forms of energy which are transformed from other, primary, energy sources through energy conversion processes. Examples are electricity, which is transformed from primary sources such as coal, raw oil, fuel oil, natural gas, wind, sun, streaming water, nuclear power, gasoline etc., but also refined fuels such as gasoline or synthetic fuels such as hydrogen fuels.
Answer:
coal is an example of secondary energy source.
Drag each label to the correct location.
Three cells are placed in three solutions of different concentrations. Determine the concentration of the solutions based on the predominant
movement of water molecules through the cells.
Solution 1
Solution 2
Solution 3
Answer:
solution 1
solution 2
solution 3
What
causes the cell cycle to stop?
Answer:
Cells – except for cancerous ones – cannot reproduce forever. When aging cells stop dividing, they become “senescent.As telomeres dwindle, cell division stops altogether.
Explanation:
Why does a pea plant with the genotype Rr have round seeds, not wrinkled ones.
Answer:
Wrinkled peas need to have genotype rr, since the wrinkled trait (r) is recessive
Please Help Me ASAP.
Answer:
The universe
Explanation:
Is a dead tree made up of cells
Answer:
im 99% eveything is
Explanation:
How can you use genetics to study human inheritance?
Answer:
by analyzing how genes influence the development of phenotypic traits, i.e., by determining the association between phenotypic traits and changes in DNA sequence
Explanation:
Genetics is a discipline that studies how genetic variation, i.e., the variation in the Deoxiriibunicleinc acid (DNA) molecule, is associated with the transmission of heredity, and how the environment influences this process. The DNA is a molecule that carries the instructions to perform all metabolic functions (eg., reproduction, development, growth, etc). Thus, advancements in genetics enabled us to decipher how phenotypic traits pass from parents/ancestors to their offspring/descendence. Genes are segments of DNA that carry the information (genetic information) to determine each phenotypic trait. During reproduction, genes are passed from one generation to the next, thereby transmitting this information across generations.
Which type of traits are neither dominant nor recessive but are a combined variation of both?
Codominant traits
Heterozygous traits
Polygenic traits
Sex-linked traits
Answer: codomiant traits.
Explanation: just took the pretest and that was the answer.
What are the products when a DNA molecule replicates?
A two molecules of DNA each made of a paired sequence of bases
B two molecules of DNA each made of a paired sequence of nucleotides
C two strands of DNA each made of a paired sequence of bases
D two strands of DNA each made of a paired sequence of nucleotides
(Its NOT c.)
The products when a DNA molecule replicates are two molecules of DNA each made of a paired sequence of nucleotides. The correct option is B.
What is DNA replication?A double-stranded DNA molecule is copied to create two identical DNA molecules through the process of DNA replication.
Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process.
Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome.
The fundamental mechanism of DNA replication is similar across all organisms, making it a crucial operation.
Two DNA molecules, each consisting of a paired sequence of nucleotides, are produced when a DNA molecule duplicates.
Thus, the correct option is B.
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As carbon dioxide is added to the atmosphere, more carbon dioxide also enters the ocean through diffusion. Carbon dioxide reacts with water to produce carbonic acid, which lowers the pH of the water. What effects do you think this might have on marine life?
Answer:
As the amount of carbon dioxide in the atmosphere rises, the oceans absorb a lot of it. In the ocean, carbon dioxide reacts with seawater to form carbonic acid. This causes the acidity of seawater to increase.
As we have seen, coral reefs have been bleached because of this increased in acidity
The oceans absorb a significant amount of carbon dioxide as the amount in the atmosphere increases. Seawater and carbon dioxide react in the ocean to produce carbonic acid. Seawater's acidity rises as a result of this.
What is acidification?Acidification is defined as a phenomena that happens when some chemicals release protons into the environment. Ocean acidification is mostly brought on by atmospheric carbon dioxide gas absorbing into the ocean. The pH of the water is lowered as a result, increasing the acidity of the ocean. The amount of carbon dioxide is rising due to numerous factors.
More carbon dioxide is evaporating into the ocean as a result of human-driven increases in atmospheric carbon dioxide concentrations. Currently, the ocean has an average pH of 8.1, which is basic (or alkaline), but when more CO2 is absorbed, the pH drops and the ocean turns more acidic.
Thus, the oceans absorb a significant amount of carbon dioxide as the amount in the atmosphere increases. Seawater and carbon dioxide react in the ocean to produce carbonic acid. Seawater's acidity rises as a result of this.
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The 4 planets that are closest to the Sun are called terrestial planets while the 4 outermost planets are called 'gas giants' or 'ice giants'.
True
False
Answer:
TRUEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Explanation:
Answer:
true
Explanation:
they are much bigger than the terrestial planets
Jon lives on the coast of California, near the Pacific Ocean. A cold current flows past the coast. What is the most likely effect of the cold water current on the climate where Jon lives?
A: The climate would be less humid than nearby inland areas.
B: The cold water current would keep summer weather cooler than nearby inland areas.
C: The climate would have weather that changes more throughout the year than nearby inland areas.
D: The cold water current would cause the area to have warmer weather year-round than nearby inland areas..
Please help.
Answer:
a
Explanation:
Answer:
i think c?
Explanation:
hope this helped
How is stress stored
in a rock released?
Answer: The stress builds up in rocks. However, rocks eventually break, and the stored stress is released as energy in the form of earthquakes. ... The energy released during an earthquake migrates away from the focus of the earthquake (location of the first break of the rocks) as waves. These waves are called seismic waves.
Explanation:
Which scenario describes a relationship of predator-prey?
Birds feed off the insects that are stirred up from the grasses as cattle move through.
A polar bear catches a seal for dinner.
A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.
Oxpecker birds eat parasitic ticks off the backs of zebras.
Answer:
A polar bear catches a seal for dinner
Explanation:
Which of the following is/are among the functions of the eukaryotic cytoskeleton? Select all that apply.
Answer:
Explanation:
I have no ideaaa. This stuff wack.
The cytoskeleton is made up of a dynamic connection of protein filaments found in all the cells. Under the eukaryotic, it is made by the microfilaments, microtubes. Giving shape and structure to the system.
The eukaryotic cytoskeleton consists of three main types of firmaments. Such as those which are connected by the neurons are know as neurofilaments. These are a distinct types of subnet that have their own character, shape, and size. Being composed of lots of proteins also helps in the division of cells.Hence the option A and E are correct. that it gives cells shape and structure and helps in cell division.
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what happen when humpty dumpty fell off the wall
Answer:
he hit his head
Explanation:
Choose the word that best completes each sentence. Angiosperms’ anchor them in the ground and absorb water for the plant. Their stems provide support to the plant and connect the roots and leaves. Their capture the sun’s energy and use it to make food through the process of photosynthesis. Angiosperms’ contain the reproductive parts of the plant. Their protect and help spread the seeds.
Answer:
Root anchor them in the ground and absorb water for the plant. Woody stem provides support to the plant and connect the roots and leaves. Leaves capture the sun's energy and use it to make food through the process of photosynthesis. Flowers contain the reproductive parts of the plant. fruite protect and help spread the seeds.
Explanation:
Answer:
roots, leaves, flowers, fruits
Explanation:
6th grade science
Rock transformation lesson 3.3
Preparing to Model Rock Transformations
There are seven possible processes. How many processes do you think your rock material will go through?
A. All of them. (Any rock material can transform into any other rock material.)
B. Only one. (Each rock material can only be transformed once.)
C. Some of them. (Each type of rock material can only go through certain processes.)
D. Some of them. (Rock material can transform in any way, but my rock might not go through all of the processes.)
Answer:
A .All of them .( Any rock material can transform inTo any other rock.material)
Answer: A
Explanation: A. All of them. (Any rock material can transform into any other rock material.)B. Only one. (Each rock material can only be transformed once.)C. Some of them. (Each type of rock material can only go through certain processes.)D. Some of them. (Rock material can transform in any way, but my rock might not go through all of the processes.)
Which of the following is another way to refer to sex cells
a. gametes
b. sex cells
c. somatic cells
d. mitosis
Answer:
a
Explanation:
zI did this the other day.... pretty weird but ok!!!!
How do isotopes differ from other atoms?
Answer:
Explanation:
Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
Answer:
Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
Explanation:
Which statement about the relationship between organisms and the environment is correct?
A. Organisms depend on a subset of their environment, which is made only of nonliving things.
B. Organisms depend on the living parts of their environment, which is made of living and nonliving things.
C. Organisms depend on the environment, which is made of living and nonliving things.
D. Organisms depend on the environment, which is made only of living things.
Answer:
I believe it is B
Explanation:
Living
treesflowersgrassectnonliving
rockswaterHope this helps!!!
plz mark brainliest
Organisms depend on the environment, which is made of living and nonliving things. The correct option is C.
What is environment?The environment can be defined as the sum of all living and non-living elements and their effects on human life.
Non-living or abiotic elements include water, land, sunlight, rocks, and air, while all living or biotic elements are animals, plants, forests, fisheries, and birds.
Our environment provides numerous benefits, including the air we breathe, the food we eat, and the water we drink, as well as the numerous materials required in our homes, workplaces, and leisure activities.
Healthy ecosystems clean the water, purify the air, maintain our soil in good condition, regulate the climate, recycle nutrients, and provide us with food.
They supply raw materials and resources for pharmaceuticals and other uses. They are the foundation of all civilizations and the backbone of our economies.
Thus, the correct option is C.
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Species can change over time and adapt to their environment.
A. True
B. False
Answer:
True
Explanation:
This statement is true. A species can always change over time and adapt to their environment.
What are species?A species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. It is a class of plants or animals whose members have the same main characteristics and are able to breed with each other.
Moreover, it is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behavior or ecological niche.
Hence, species can change over time and adapt the conditions according to their environment.
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Someone help me give me the answer
can someone explain what's going on in the graph?
