Answer:
false
Explanation:
Sound waves need to travel through a medium such as a solid, liquid, or gas. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly as solids. And gases are very loosely packed.
Answer:
False
Explanation:
because sound waves can also pass through a solid and gas as well as liquids.
Can someone please answer this, the article will help a lot. 8 points. Thank you
Answer:
what article?
Explanation
Explain what holds the Solar System together. Give evidence to support your claim (think how).
Answer:
Gravity is what holds the solar system together, not only is it gravity it is the sun's gravity, and since the planets orbit around the sun, it's what keeps the solar system together. Explain how the planets in the solar system formed.
Answer:
GRAVITATIONAL PULL
The Sun is a yellow dwarf star, a hot ball of glowing gases at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit.
The sun's gravity pulls the planet toward the sun, which changes the straight line of direction into a curve. This keeps the planet moving in an orbit around the sun. Because of the sun's gravitational pull, all the planets in our solar system orbit around it.
hope it helps please mark me brainliest xD
Explanation:
What do scientists think the effect will be of having more greenhouse gases in our atmosphere?
A. More warming of the atmosphere
B. More cooling of the atmosphere
C. Less air in the atmosphere
D. More air in the atmosphere
Answer:
a
Explanation:
greenhouse gases is what caused global warming and climate change
Select the correct answer.
What is a counter?
A.
the imaginary horizontal line aligning the bodies of the characters
B.
the curved stroke coming from the stem
C.
the tapered features at the end of strokes
OD.
the empty space inside the body stroke
Reset
Next
Answer:
its D
Explanation:
I read the tutorial
Answer:
D. the empty space inside the body stroke
Explanation:
on edmentum
how do plants and animals help each other obtain energy
Answer:
See below
Explanation:
Through utilising the carbon dioxide , water and sunlight, plants create nutritious through way of photosyntheses. There was an mistake. The animals feed and obtain nutrients from these plants. That's how the animals get plant energy.
Hope this helps.
Name three properties that are sometimes used to separate mixtures.
Answer: The separation scheme used to separate the mixture is based on differences in the physical properties (such as boiling point, melting point, solubility in a given solvent, etc.) of three components.
ASAP / IMAGE LINKED:
Sort the examples by the type of diversity that they exhibit.
Red, yellow, and orange
bell peppers are all members
of the same species.
A park has 80 species of trees.
Individuals of the same
lizard species have
different mating strategies.
Five different bird species are
at a bird feeder.
Answer:
genetic diversity
red yellow and orange bell peppers
individuals of the same lizard species
species diversity
a park has eighty species of trees
five bird species are at a bird feeder
Explanation:
Answer: genetic diversity
red yellow and orange bell peppers
individuals of the same lizard species
species diversity
a park has eighty species of trees
five bird species are at a bird feeder
Explanation: i got it right on the test
How is the solubility of most genes and solids in water affected by the temperature of the water?
Answer:
in higher temperatures the molecules will increase however in colder temperatures the molecules will decreasing and eventually melt. (more info below)
Explanation:
if the water is hot, the average kinetic energy of its molecules will increase. As a consequence, the solution is capable of extracting additional ions from the surface of the solute. As a result, temperature increases the solubility of substances. Sugar and salt, for example, are more soluble in water at higher temperatures.When the temperature of the solution changes, the total kinetic energy of the molecules that make up the solution often decreases.The enhanced friction (kinetic energy) of the molecules of the solute allows them to be less able to stay on and therefore melt more quickly.
hope this helped!
A wave hits an object as shown
Which kind of wave interaction is shown?
absorption
Diffraction
Refraction
Reflection
Answer:
Refraction
Explanation:
The given type of wave interaction is diffraction. Thus, the correct option is B.
What is Diffraction?Diffraction is the phenomena of spreading of waves around the obstacle particles. Diffraction takes place with sound waves with electromagnetic radiations, such as light, X-rays, and gamma rays and with the very small moving particles such as atoms, neutrons, and electrons, which show wave-like properties.
Types of diffraction include:
1. Fresnel diffraction: This type of diffraction is caused by the light from a point source. In Fresnel diffraction, the incident and the diffracted wavelengths are spherical or cylindrical in nature.
2. Fraunhofer's diffraction: In this type of diffraction, The incident and the diffracted wave fronts are both plane type.
Therefore, the correct option is B.
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Convert 457 milligrams to grams
e
Answer:
457 Milligrams (mg). 0.457 Grams (g).
Explanation:
Choose all the right answers.
What items are considered part of the nucleus structure?
genes
blood
osmosis
bubbles
nuclear membrane
chromosomes
Answer:
There are 5 main parts:
1. Nucleolemma or nuclear membrane
2. Nuclear sap or karyolymph
3. Chromatin
4. Nucleolus
5. Endosomes.
Hope this helps!
Explanation:
Which are present when freezing rain occurs check all that apply
Ice pellets
Snowflake
Cold surfaces
Liquid precipitation
Warm temperatures
Answer:
Ice pellets
Snowflake
Cold surfaces
What would make a mountain top become flatter and smoother over time?
What is this process called?
Answer:
reclamation
Explanation:
claiming something back or of reasserting a right.
Answer:
Erosion
A mesa is a flat-topped mountain or hill, they are formed by erosion, when water washes smaller and softer types of rocks away from the top of a hill. The strong, durable rock that remains on top of a mesa is called caprock. A mesa is usually wider than it is tall and are usually found in dry regions where rock layers are horizontal
Compared to absolute dating, what is an advantage of relative dating?
Answer:
When compared to absolute dating, the advantage of relative dating is most likely that there is not a limit to an age scope of the dated fossils or the fossils being dated.
Explain how it is possible for two parents to produce an offspring that expresses a phenotype not seen in either parent. Use the following terms in your answer: dominant, recessive, meiosis, segregation, recombination, allele, and any other that may apply.
Answer:
A phenotype is what you look like. The parents are showing the dominant phenotype. If we were talking about eye color, the dominant trait is brown eyes. However, the parents might have a recessive gene which is covered by the dominant one. Say they both have Bb genotypes. The capital B is brown and the lower case is blue. Their blue gene is still there, just covered by a brown one. In a punnett square, there is a 25 percent chance a child will have blue eyes (bb) In most cases, the children will end up will brown eyes. Hope that helps!
\\
is creating "designer babies" ethical? why or why not
Answer: It is not ethical.
Explanation: Creating designer babies has many more downsides than upsides. First designer babies might have a higher chance of developing diseases and problems. While there are some upsides it is better to not create a designer baby.
The _____ of a wave is the distance from its rest position to its maximum displacement.
Answer:
amplitude
Explanation:
when in biology the maximum displacement and distance moved by a point on a vibrating body is measured from its equilibrium
Question 3
3 pts
(07.05 LC)
What happens to the rate of most reactions as the reaction progresses? (3 points)
The rate change depends on the energy change of the reaction.
The rate decreases as the concentration of the reactants decreases.
The rate increases as the concentration of the products increases.
The rate remains constant over the course of the reaction.
Question 4
3 pts
Answer:The rate decreases as the concentration of the reactants decreases.
Normally in a chemical reactions, reactants react with the product to form reactants. The continuous availability of the reactants ensure constant formation of the products, thus the reaction continues to progress.
However, after a period of time,of reaction progress, the rate of reaction drops.This is because, the concentration of reactants has been used up, and therefore more product is formed.Thus the concentration of both the reactants and product changes; and this slows down the rate of reaction as the concentration of the reactants drops.
Explanation:
Answer:
The rate decreases as the concentration of the reactants decreases.
Explanation:
I took the test :)
Soha, Kesha, and Lance work together in the same office and also live in the same apartment building. They travel to their workplace using
different modes of transport Arrange their transport choices according to their carbon footprint. Begin with the person with the smallest
footprint
Soha drives a gasoline-powered sedan
Kesha drives a hybrid electric car.
so
Lance rides a bicycle.
Answer:
Lance rides a bicycle.
↓
Kesha drives a hybrid electric car.
↓
Soha drives a gasoline-powered sedan .
The increasing order of their transport choices based on their footprint is smallest footprint is as follows:
Lance rides a bicycle
↓
Kesha drives a hybrid electric car.
↓
Soha drives a gasoline-powered sedan
Carbon dioxide (CO2) is considered one of the most potent contributors to global warming. This is because it is a greenhouse gas capable of trapping and emitting heat. Hence, carbon footprint of an individual is the amount of greenhouse gases released into the atmosphere via activities engaged by that individual. According to this question, Lance, Kesha and Soha are both neighbors and work colleagues. They transport themselves to work via different modes as follows:- Lance rides a bicycle, hence, possesses the smallest footprint.
- Kesha drives an hybrid electric car meaning that there would be little carbon emissions into the atmosphere via the exhaust.
- Soha drives a gasoline-powered sedan, hence, the carbon emissions will be high.
Based on the above description of each individual's mode of transportation, it is obvious that Lance will have the smallest footprint followed by Kesha and then Soha.
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Plant shoots exhibit positive phototropism by growing towards the light, while their roots exhibit negative phototropism by growing away from light. The hormone auxin directs this process. Auxin increases in concentration on the side of the shoots and the roots that faces away from the light. Auxin has different effects in each of these locations.
What is the best explanation of how auxin directs phototropism in plant shoots?
Answer:
Auxin increases in concentration on the side of the shoots and the roots that faces away from the light.
Explanation:
Auxin is a growth hormone in plants.it is promotes elongation of roots and shoots. It is very sensitive to light. when the plant is exposed to light, the auxin in the exposed part of the shoots breaks down. And diffuses to the shady part not exposed to light..
The higher concentration of auxin at this parts, promotes accelerated growth, which caused the part to bend to of this shoot to grow faster than the other part, and bends towards light.
While the roots grows towards.
Which of these is a function of the placenta?
A. To bring oxygen to the cells of the uterus
B. To bring nutrients to the embryo
O C. To provide the infant with a belly button
0 D. To open the cervix for childbirth
Answer:
B
Explanation:
environmental changes in a watershed lab report (essay)
Answer:
To examine how environmental changes affect the health of a watershed and to predict the effect of human activity on the watershed
Time Approximately 60 minutes
Question How do environmental changes affect both living and nonliving things in a watershed?
Summary In this lab, you will study a virtual model of a watershed to see how point and nonpoint source pollution affect the watershed. Next, you will create food chains. Finally, you will model scenarios of environmental changes and observe the effect of these environmental changes on a food chain you created. This will help you understand how the overall health of a watershed is affected by changes in environmental factors, such as populations of organisms, water quality and flow, and human activity
Explanation:
The watershed ecosystem is mainly affected by the water pollution and increase in global temperature.
Watershed:
It is an area where many rivers or other water canals comes and drain their water in a lower elevation.
The watershed is an important ecosystem that has a very diverse life forms because it consists of both water body and surrounded land.
Increase in water pollution and global temperature negatively affect the watershed ecosystem. Due to pollution some animal species lived in water gone extinct.
Therefore, the watershed ecosystem is mainly affected by the water pollution and green house effect.
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Which of the following statements best describes the relationship between
adaptations and natural selection?
A. Adaptations that improve the chances an individual will reproduce
but that may not affect the individual's life span become less
common within a population over time.
B. Adaptations that mprove the chances an individual will have a
long life but that may not affect reproduction become less
common within a population over time.
C. Adaptations that improve the chances an individual will reproduce
but that may not affect the individual's life span become more
common within a population over time.
D. Adaptations that improve the chances an individual will have a
long life but that may not affect reproduction become more
common within a population over time
Answer:D
Explanation:Adaptation that improve the chances an individual will have a long life but that may not affect reproduction become more common within a population over time.
The option that best describes the relationship between adaptations and natural selection is adaptations that improve the chances an individual will have a long life but that may not affect reproduction and become more common within a population over time. Thus, the correct option is D.
What is Adaptation?An adaptation may be defined as the adjustment of organisms to their environment in order to enhance their chances of survival in that environment.
Adaptation will eventually lead to improvement in the survival of organisms in response to a new environment or climatic conditions. It does not alter the rate of reproduction.
Therefore, the correct option for this question is D.
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Describe unconsolidated material
Answer:
Unconsolidated meterial is a sediment that is loosely arranges, meaning the material's particles are not cemented together and are loose, and is either found at the surface or at depth.
What are the fundamental structural and functional units of all living things? atoms organs molecules cells
Answer:
Cells
Explanation:
Cell is the basic unit of life
Which of the following best explains the difference between micro and macro evolution? A. Microevolution is based on ideas, while macroevolution is based on facts B. Both micro and macro evolution are when you witness changes to a gene pool. C. Microevolution is small scale change to the gene pool of a population while macroevolution is larger scale changes that lead to speciation. D. Macroevolution is small scale change to the gene pool of a population while microevolution is larger scale changes that lead to speciation.
Answer: C. Microevolution is small scale change to the gene pool of a population while macroevolution is larger scale changes that lead to speciation.
Explanation:
Microevolution can be defined as a small change in the gene frequency within a gene pool of the species, these changes will be inherited by the organisms and there will not be any drastic change at the species level. But in case of macroevolution the large scale change occurs at the genetic level, which retain for long. This leads to development of new organisms or results in speciation.
1. A genetic mutation causes a disease when the the DNA encodes is altered
such that it no longer functions properly.
2 Errors during __ _ can cause genetic problems with the resulting germ cells.
3. Down syndrome is caused by three copies of chromosome 21, also known as
21.
4. A silent mutation is a change in the DNA that does not change the encoded
and has no phenotypic effect.
Answer:
protein
meiosis
trisomy
amino acid or stop codon
Diagnosing genetic conditions can be difficult because, although scientists have identified genes related to specific diseases, often not enough is known about the disease to determine the exact role of a given gene in the disease. In other cases, perhaps no mutation exists on a known gene for a condition, but a mutation occurs on a related gene that also gives rise to the condition. The human genome is vast, with about 24,000 genes. Scientists do not yet understand the roles and interactions of all these genes in human health and disease.
Meiosis is the process by which germ cells—egg cells in females and sperm cells in males—develop. Meiosis causes germ cells to obtain only half the chromosomes of the person. If the chromosomes fail to separate properly and are shuffled improperly into the chromosomes, an egg cell or sperm cell can have either too few or too many chromosomes. Trisomy 21, or Down syndrome, is a developmental disorder in which three copies of chromosome 21 are passed down from the person's mother and father. The word "trisomy" means that there are three copies of chromosome 21, indicating that one of the germ cells did not undergo meiosis properly. This condition affects about 5,000 babies born each year.
In a silent mutation, one nucleotide base in a protein-coding region gets swapped out for another base. However, the resulting three-nucleotide sequence, or codon, encodes for the same amino acid.
Explanation:
Penn Foster :)
Protein, meiosis, trisomy, amino acid, or stop codon leads to genetic changes.
What is a genetic mutation?Meiosis is the process by which male and female germ cells—egg and sperm cells, respectively—develop. Germ cells only get half of the person's chromosomes during meiosis.
An egg cell or sperm cell may have either too few or too many chromosomes if the chromosomes fail to split correctly and are shuffled wrongly into the chromosomes.
Down syndrome, also known as trisomy 21, is a developmental disease when three copies of chromosome 21 are inherited from the mother and father. When chromosome 21 is found in three copies, this suggests that one of the germ cells did not go through meiosis properly.
Therefore mutation leads to trisomy, change in meiosis, and silent mutation is due to amino acid.
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Which of the following would result in fraternal twins, who don't have identical DNA?
A. One sperm fertilizing a single egg that splits into two embryos
B. Two sperm fertilizing a single egg
C. Two sperm fertilizing two different eggs that were released in the same cycle
D. One sperm fertilizing a single egg
Answer: C. Two sperm fertilizing two different eggs that were released in the same cycle.
I just took the test!!!!
Two sperm fertilizing two different eggs that were released in the same cycle. therefore, option C is correct.
What are fraternal twins?Fraternal twins are also known as dizygotic twins or non-identical twins. They are produced when two different eggs fertilized two different eggs. Fraternal twins may be the same or opposite gender, they look different from each other and their genes are as different as any other siblings.
They are different from identical twins or monozygotic twins. Identical twins have the same kind of genes and their physical appearance is also the same. Twin pregnancies are complex, but fraternal pregnancy has fewer complications.
Fraternal twins are the result of the fertilization of two eggs and two sperm. Therefore option C is correct.
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which of the following is the amount of time between the fertilization process and birth of an organism
Answer:
Well if you are talking about bipeds, then the gestation period for a human is 9 months
Explanation:
Living things interact with Earth systems in a variety of chemical processes. The diagram illustrates the overall chemical change that occurs in one of these processes.Which process does the diagram illustrate? What is its effect on Earth systems?
a The process is cellular respiration. It transfers carbon from the hydrosphere to the
biosphere.
b The process is photosynthesis. It transfers carbon from the atmosphere to the biosphere.
c The process is cellular respiration. It transfers oxygen from the atmosphere to the biosphere.
d The process is photosynthesis. It transfers carbon from the biosphere to the geosphere.
Answer: b The process is photosynthesis. It transfers carbon from the atmosphere to the biosphere.
Explanation:
The given diagram is showing photosynthesis. Photosynthesis can be defined as a biochemical process in which the carbon dioxide and water from the atmosphere and soil are absorbed by the green plants and other autotrophs. These reactants are utilized by the plants to produce products called carbohydrates and oxygen. This way the food is produced in the form of carbohydrates is utilized by the plants and other organisms for their growth and development. This way the carbon from the atmosphere is transferred to the biosphere in the form of carbohydrates.
