Write a statement about the role gravity plays in the motion of the planets.
Answers
Answer:
Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. ... Gravity creates stars and planets by pulling together the material from which they are made. Gravity not only pulls on mass but also on light.
Related Questions
Are heated air and wind shear the cause for severe storms? Explain.
Answers
Answer:
Yes, they are very much the main cause of severe storms because the heat molecules get into the atmosphere and clouds, causing chemical reactions and damage. At some point in time, the energy built up, as well as the damage done, must undo itself. This is done through a storm. It is the environment's way of cleaning itself.
As a part from this video below states, wind shear is a leading cause in severe storms.
the central limit theorem states
Answers
Answer:
the central limit theorem states that sampling distribution of the sample means approaches a normal distribution as the sample size gets larger — no matter what the shape of the population distribution.
The incidence of phenylketonuria (PKU), an autosomal recessive genetic disorder, is approximately 1 in 4,500 in Ireland. Assuming Hardy-Weinberg equilibrium, what is the probability that an Irish female, who is phenotypically normal with no family history of PKU, and an Irish male, who like his parents does not have PKU, but does have a sister with PKU, will have a child with PKU?
Answers
Answer: Probability: 0%
Explanation:
Hardy-Weinberg establishes that the genetic composition of a population remains in equilibrium as long as no natural selection or other factors act and no mutations occur. This means that the children of this couple will inherit the genes of the parents.
The woman is phenotypically normal with no family history of PKU, this mean that probably there are no affected (recessive) alleles in her family. In an autosomal recessive disorder, both copies of the gene in each cell are recessive. Therefore, her genotype will be AA with A being the dominant and normal allele. As for the Irish man, his sister does have PKU, which means her genotype is aa. So, she must have received a defective allele from each parent. Then the parents' genotypes are both Aa (heterozygous, only one allele affected as they are healthy). So, we know that the Irish man does not have the disease (he can't be aa), but he could be Aa (having inherited a normal allele from one parent, and an affected one from the other parent) or AA (having inherited both normal alleles from each parent).
Then we have two possible punnetts square to do: AA (the Irish woman) and AA (he Irish man); or AA (woman) and Aa (man).
In the attached figure both punnetts squares are shown. The first punnett square (AA x AA) shows that 100% of the offspring will be AA (this means, the phenotypic ratio is also 100% not affected and non-carrier). The second punnett square (AA x Aa) shows that 50% will be AA (healthy and non-carrier) and 50% will be Aa (heterozygous, healthy and carrier) But since it is an autosomal recessive disease, a single affected allele is not enough to develop the disease. So in neither case is there a chance of having a child with PKU.
Which change is chemical?(1 point)
water undergoing electrolysis
water boiling
water evaporating
water freezing
Which number remains unchanged during photosynthesis?(1 point)
the number of glucose molecules
the number of carbon dioxide molecules
the number of carbon atoms
the number of water molecules
In a chemical reaction, which aspect of the reactants changes?(1 point)
atoms
total mass
mass
nuclei
A young snake eats and digests a mouse. The increase in the snake’s mass equals(1 point)
the mass of the mouse minus the mass of waste produced by the snake.
the mass of the mouse plus the mass of waste produced by the snake.
the mass of the mouse.
the mass of the mouse plus the original mass of the snake.
Cellular respiration transforms glucose and oxygen into carbon dioxide, water, and energy.
C6H12O6 + 6O2 → 6CO2 + ?H2O + Energy
Based on the law of conservation of matter, what is the missing coefficient for water?
(1 point)
2
4
6
8
Answers
Answer:
water undergoing electrolysis
the number of carbon atoms
mass
the mass of the mouse minus the mass of waste produced by the snake.
6
Explanation:
A chemical change is characterized by irreversible reactions that produce new products. Water undergoing electrolysis is a chemical change. Thus, the options are 1. A, 2. C, 3. C, 4. A, and 5. C.
What is a chemical change?A chemical change has been defined by the permanent alteration of the reactants that produce new substances with varied chemical characteristics. Water undergoing electrolysis produces new substances, while boiling, evaporation, and freezing are changes in phases. Thus, 1. A is correct.
Photosynthesis is a plant process marked by the production of sugar and oxygen atoms. The number of carbon atoms in the reaction remains the same. Thus, 2. C is correct.
In a chemical reaction, the mass of the reactant changes as new products are formed but the total mass remains conserved. Thus, 3. C is correct.
Snake is a predator and a consumer that feeds on rats. The snake's mass is equivalent to the waste produced by the snake subtracted from the mouse's mass. As waste is eliminated from the body. Thus, 4. A is correct.
Cellular respiration is the process that occurs in organisms where glucose and oxygen are used to produce six carbon dioxide and six hydrogen molecules as there are 12 hydrogens on the reactant side. Thus, 5. C is correct.
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Cells from different parts of an organism have varying
and
Answers
The study of the cell is called cell biology. There are two types of cells on the basis of the number and these are unicellular and multicellular.
The question is incomplete. kindly provide the full question so that we can able to assist you.
What is cell division?The formation of new cells from the preexisting cell is called cell divisionThe number of the chromosome may or may not be the same as compared to the parent cellHence, kindly provide the proper information.
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In a paramecium, which statement is true of a new cell that results from binary fission? Group of answer choices 1. it has half as much genetic information as the parent cell 2. It has the same amount of genetic material but is smaller 3. It has the same amount of genetic material as the parent cell and is the same size as the parent cell 4. It has twice as much genetic material as the parent cell
Answers
In a paramecium, the statement which is true about a new cell that results from binary fission is that it has the same amount of genetic material but is smaller.
What is Binary fission?This is a type of reproduction in which the parent cell splits to form two new daughter cells.
Paramecium is an example of organisms which perform this type of reproduction and they have the same amount of genetic material but is smaller.
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The E-site A) is found on the RNA polymerase enzyme. B) is responsible for the release of the tRNA. C) is found on the 35S polysome. D) is the aminoacyl site on the ribosome. E) is another name for anticodon.
Answers
Answer:
B) is responsible for the release of the tRNA.
Explanation:
A transfer ribonucleic acid (tRNA) is an RNA molecule that connects a particular triplet of nucleotides or 'codon' of a messenger RNA (mRNA) to a particular amino acid during protein synthesis (translation) in the ribosomes. In a cell, tRNAs can be found in three different forms: aminoacyl-tRNAs, peptidyl-tRNAs, or deacylated tRNAs. Moreover, during translation, the tRNA binds to the ribosome at three different sites. The E-site (E for exit) refers to the final binding site for deacylated tRNAs in the ribosomes (i.e., before their dissociation from the ribosomes) during protein synthesis. The first binding site for tRNA in the ribosome is the A-site (A for aminoacyl), while the second binding site is called P-site (P for peptidyl). These three sites are oriented in inverse sense (5' to 3' E-P-A) with respect to the mRNA.
What is an example of an independent variable and Dependant?
Answers
An independent variable is a variable that is being manipulated or changed in an experiment in order to observe the effect on a dependent variable. A dependent variable is a variable that is being measured or observed in an experiment.
An example of an independent and dependent variable would be a study examining the effect of sunlight on plant growth. In this study, the independent variable would be the amount of sunlight that the plants receive (e.g. 0 hours, 2 hours, 4 hours, 6 hours, 8 hours). The dependent variable would be the growth of the plants, which would be measured by the increase in height, number of leaves, or biomass.
In this experiment, the experimenter would manipulate the independent variable (amount of sunlight) by exposing different groups of plants to different amounts of sunlight, while keeping all other variables constant. The experimenter would then measure the dependent variable (plant growth) in each group of plants. By comparing the growth of the plants in each group, the experimenter could determine the effect of sunlight on plant growth.
It is important to note that in this example, the independent variable is manipulated by the experimenter, but it can also be naturally occurring variables such as temperature, precipitation, or time. Furthermore, dependent variables can be continuous or categorical and it can be measured using different methods such as questionnaires, observation, and physical measurements.
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a fish that has been salt cured develops a reddish slime on its skin. you discover its a species of bacteria decompsong the fish. how could you of bacteria
Answers
Numerous bacterial illnesses, including Flavobacterium Columnare, Aeromonas, and Pseudomonas, frequently cause fin rot.
What is the cause of fin rot?One of the most avoidable illnesses in aquarium fish is fin and tail rot. Poor water quality is always the main contributor to Fin Rot, but fish stress is also a role. Fish are more prone to Fin and Tail Rot when handled, moved, crowded, or kept alongside fish that are more hostile.
Flavobacterium Columnare: what is its cause?Both overcrowding and cage abrasions are blamed for it. Aquaculture species, particularly catfish, trout, salmon, carp, tilapia, perch, and many aquarium species, as well as wild and ornamental fish, are all affected by the columnaris disease.
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How many gene pairs are involved in generating a typical 1:8:28:56:70:56:28:8:1 ratio in the f2 generation of an experimental cross? group of answer choices
Answers
In a typical 1:8:28:56:70:56:28:8:1 ratio in the F2 generation of an experimental cross, there are 9 gene pairs involved.
correct option is A.
This ratio follows the pattern of a binomial expansion of (a + b)^8, where "a" represents one allele and "b" represents another allele.
To calculate the number of gene pairs involved, we can use the binomial expansion formula. In this case, we have a total of 8 alleles, which means there are 8 gene pairs.
Each pair can have two possible alleles (one from each parent). Using the binomial expansion formula, we can calculate the number of gene pairs involved as follows:
Number of gene pairs = (8 choose 0) + (8 choose 1) + (8 choose 2) + (8 choose 3) + (8 choose 4) + (8 choose 5) + (8 choose 6) + (8 choose 7) + (8 choose 8)
Calculating each term of the equation:
(8 choose 0) = 1
(8 choose 1) = 8
(8 choose 2) = 28
(8 choose 3) = 56
(8 choose 4) = 70
(8 choose 5) = 56
(8 choose 6) = 28
(8 choose 7) = 8
(8 choose 8) = 1
Adding up all the terms:
1 + 8 + 28 + 56 + 70 + 56 + 28 + 8 + 1 = 256
Therefore, there are 9 gene pairs (i.e 0, 1, 2, 3, 4, 5, 6, 7, 8) involved in generating the 1:8:28:56:70:56:28:8:1 ratio in the F2 generation of the experimental cross.
correct option is A.
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Correct question is :
How many gene pairs are involved in generating a typical 1:8:28:56:70:56:28:8:1 ratio in the f2 generation of an experimental cross?
A. nine pairs
B. three pairs
C. five pairs
D. None
What effect can fertilizer runoff have on an aquatic ecosystem?
a.
increased plant growth leading to a decrease in fish populations
b.
increased plant growth leading to an increase in fish populations
c.
decreased plant growth leading to a decrease in fish populations
d.
decreased plant growth leading to an increase in fish populations
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
A
Explanation:
Hopefully this helps
Answer:
A
Explanation:
Trust the process - Edge 2021 -
100 PTS + BRAINLIEST!! NEED NOW. LOOK AT IMAGE BELOW.
Answers
Answer:
Pollution
Explanation:
If the human population surpasses Earth's global capacity, there will be degradation of land, air, and water with increased pollution.
nocturnal animals are important pollinators. what niche do they specifically fill?
Answers
Nocturnal animals are important pollinators. The niche they specifically fill is that they pollinate flowers that only bloom at night.
Nocturnal animals are animals that are active at night and usually rest during the day. These animals have very good adaptations to their eyesight so that they are able to move at night. Some examples of nocturnal animals are bats, koalas, and owls.
Niche is the functional role of an animal in an organism. One of the nocturnal animals that has a pollination niche is the bat. Bats help pollinate some flowers that grow in the tropics and deserts of Africa and Asia. They transfer pollen grains from one flower to the stigma of another.
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A cold front usually causes what
Light rain, warmer weather and clouds
Chance of rain, humidity, and light clouds
Colder weather and nothing else
Heavy rain, cooler weather and clear days
Answers
Answer:
Light rain, warmer weather, and clouds
this hormone promotes the enrichment of the blood supply and secretion of nutrients of the functional layer of the endometrium during the secretory phase of the menstrual cycle
Estrogen and progesterone
estrogen
progesterone
Answers
The hormone that promotes the enrichment of the blood supply and secretion of nutrients in the functional layer of the endometrium during the secretory phase of the menstrual cycle is progesterone. Option C
During the menstrual cycle, the endometrium undergoes cyclic changes in preparation for potential implantation of a fertilized egg. The menstrual cycle consists of several phases, including the proliferative phase (follicular phase) and the secretory phase.
During the secretory phase, which occurs after ovulation, the corpus luteum in the ovary produces and releases progesterone. Progesterone plays a vital role in preparing the endometrium for implantation and supporting early pregnancy.
Progesterone promotes the enrichment of the blood supply to the endometrium, a process known as vascularization. It stimulates the growth and dilation of blood vessels in the functional layer of the endometrium, ensuring an adequate blood supply for the potential embryo.
This increased blood supply helps provide oxygen and nutrients to support the development of the embryo.
Furthermore, progesterone stimulates the secretion of nutrients, such as glycogen, lipids, and proteins, by the uterine glands in the endometrium. These secretions provide nourishment to the embryo in case of implantation and early pregnancy. Option C
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guy thanks for everything you've done i appreciate everything and i'm just grateful i'm here on this earth thx guys shout out to all of you :)
Answers
Answer:
your welcome
Explanation:
I was wondering could you help me on some English please I'm really struggling in english and i dont know what ethos, pathos, logos is I have a question worth 25 points please
what happens when solid particles gain enegry
Answers
Answer:
The solid particles eventually gain so much energy that the vibrations increase and break their fixed positions.
Explanation:
Atomic bonds hold atoms to one another inside a solid. Instead of acting like stiff rods, these linkages act like springs. A solid is thus made up of several heavy particles that are linked by springs. You may easily picture these particles continuing to oscillate erratically to and fro from their places, resulting in zero net motion. But power is still needed for this oscillation. The solid's temperature is controlled by this energy, which is also known as internal energy. The energy increases with temperature. A solid's internal net energy rises when it receives (thermal) energy. The surplus is divided among all the particles essentially evenly. The frequency in a spring mass system does not alter with energy, but the amplitude does. In other words, atomic oscillations have the same frequency but a greater amplitude. In other words, the atoms move farther throughout their oscillations. The amplitude may rise to a point where the spring-ey linkages begin to break and the lattice collapses if you provide them with enough energy. To put it simply once again, the solid dissolves.
what can you conclude about the connection between a leaf's size and the amount of sunlight it absorbs?
(a). The smaller a leaf is, the more sunlight it absorbs.
(b). The larger a leaf is, the more sunlight it absorbs.
(c). The connection between the size of a leaf and the amount of sunlight it absorbs cannot be predicted.
(d). Large leaves and small leaves absorb about the same amount of sunlight.
Answers
An survey makes use of evidence, such as the footprints left behind by animal, to follow animals that re difficult to track.
Answers
The correct word to fill the gap would be indirect.
In other words, an indirect survey makes use of evidence, such as the footprints left behind by animals, to follow animals that are difficult to track.
Ecological surveys are of 2 types:
DirectIndirectDirect ecological surveys have to do with studying phenomena directly and recording whatever that is observed.
Indirect surveys involve an indirect way of studying phenomena. The signs left by phenomena are observed and logically used to make deductions about such phenomena.
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How do the size of the two atria compare to the ventricles
Answers
Answer:
Atria are the smaller upper chambers while ventricles are the larger lower chambers off the heart.
Explanation:
the main difference between them is that atria receives blood into the heart whereas ventricles pump blood outside the heart
How do you think caffeine will affect the heart rate of humans
Answers
Answer:
Caffeine stimulates the heart's contractions via acting on enzymes in the heart. Caffeine can help natural hormones operate on the heart to release norepinephrine, which has a stimulating impact comparable to adrenaline.
Which of these is an important reason for sleep? Sleep increases blood flow to the muscles. Sleep saves energy. Sleep increases blood flow to the brain. Sleep increases the speed of all the body's chemical reactions.
Answers
Sleep is an important aspect of human life. It is a natural and essential requirement for the body to function effectively. There are numerous reasons why people need to sleep. However, one of the significant reasons for sleep is that it increases blood flow to the brain.
Sleep plays a vital role in the overall functioning of the human body. During sleep, the brain can rest, recuperate and repair itself. During this time, the brain gets an opportunity to reorganize, consolidate and store information that is important to the individual.Sleep is also important because it saves energy. When an individual sleeps, their body is in a state of rest, which means that the body is not using as much energy as it would if it was active. This is why people often feel refreshed and rejuvenated after a good night's sleep.Sleep also increases the speed of all the body's chemical reactions.
While asleep, the body continues to perform various essential functions, such as the regulation of hormones and the elimination of toxins. Furthermore, sleep promotes the growth and repair of tissues, including muscles. It is also important to note that during sleep, the immune system is boosted, which helps fight off infections and diseases.In conclusion, sleep is essential to maintaining good health and wellbeing. It has numerous benefits for the brain, the body, and the overall functioning of human beings.
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What is the common point between: plants, fungi, bacteria, animals, zooplankton?
Answers
Answer:
They are all living creatures.... thats the only answer i think
Explanation:
Answer:
they all have cellwalls and yes they are also living creatures
Which of the following events occur first during resting inhalation?
1) Atmospheric pressure exceeds air pressure in the lungs.
B) Volume in the lungs decreases.
C) The diaphragm and external intercostal muscles contract.
D) Volume in the lungs increases.
E) The diaphragm and external intercostals relax.
Answers
What climate zone includes most of the world's biomes?
Answers
The climate zone that includes most of the world's biomes is the temperate climate zone. This climate zone is characterized by moderate temperatures and relatively even distribution of precipitation throughout the year. The temperate climate zone is found between the tropics and the polar regions, and it encompasses a wide range of ecosystems, including deciduous forests, grasslands, and Mediterranean ecosystems. The biomes found within the temperate climate zone are diverse and varied, and they support a wide range of plant and animal life.
Do you think cell division stops after a new baby is born? Why or why not?
please help me i really need it lol
Answers
Answer: cell division does not stop after a baby is born bc if it were to stop then the baby would not grow
You are designing an experiment to examine the performance of a skeletal muscle bundle under different physiological conditions, using an electrical stimulator to initiate the muscle contraction. The first step of the protocol is to determine the stimulator settings that result in the maximum tension that can be developed by the muscle under "standard" conditions, without over-stimulating and potentially damaging the tissue.
In order to determine the maximum tension, you should:
(A) Adjust only the frequency of the stimulator.
(B) Adjust both the voltage and frequency of the stimulator.
(C) Use standard settings as the contraction will be all-or-none.
(D) Adjust only the voltage of the stimulator.
Answers
To determine the maximum tension that can be developed by the skeletal muscle bundle under "standard" conditions without over-stimulation, to adjust both the voltage and frequency of the electrical stimulator.
In order to determine the maximum tension that a skeletal muscle bundle can develop, it is important to find the optimal combination of voltage and frequency of the electrical stimulation. Adjusting only the frequency (option A) may not provide sufficient information about the muscle's maximum tension capacity, as voltage also plays a crucial role in initiating muscle contractions.
By adjusting both the voltage and frequency (option B) of the electrical stimulator, it is possible to find the specific settings that result in the highest tension developed by the muscle bundle. This approach allows for a comprehensive assessment of the muscle's contractile capabilities under standard conditions. Using standard settings (option C) assumes an all-or-none response and may not provide an accurate measure of the muscle's maximum tension.
Contraction adjusting only the voltage of the stimulator (option D) may result in suboptimal stimulation and inadequate activation of the muscle fibers, leading to an underestimation of the maximum tension that can be developed. Therefore, option B, which involves adjusting both the voltage and frequency of the stimulator, is the most appropriate choice to determine the maximum tension of the muscle bundle while avoiding over-stimulation and potential tissue damage.
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How are pluripotent and mutipotent cells similar? How are they different?
Answers
Answer:
Multipotent stem cells have the ability to develop specific types of cells (terminally differentiated cells).
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Answer:
Pluripotent cells can give rise to all of the cell types that make up the body; embryonic stem cells are considered pluripotent. Multipotent cells can develop into more than one cell type, but are more limited than pluripotent cells; adult stem cells and cord blood stem cells are considered multipotent.
Which of these statements about natural selection is true
Natural selection causes progression to a goal
Natural selection causes new traits to appear
Natural selection results in a perfect perfect organism natural selection favors traits suited to the environment
Answers
The correct statement about natural selection is:
"Natural selection favors traits suited to the environment."
Natural selection is a key mechanism of evolution, and its primary driving force is the differential reproductive success of individuals with certain heritable traits. It does not cause progression towards a specific goal or result in a perfect organism. Instead, natural selection acts on existing genetic variation within a population, favoring traits that enhance an organism's fitness in a specific environment.
The environment presents challenges and opportunities for survival and reproduction, and individuals with traits that are better suited to their environment have higher chances of surviving and passing on their genes to the next generation. This process leads to the accumulation of favorable traits over time, as those individuals with advantageous traits have increased reproductive success and contribute more offspring to the next generation. Conversely, individuals with traits that are less suited to the environment may have reduced fitness and are less likely to pass on their genes.
Natural selection does not directly cause new traits to appear. Instead, it acts on existing genetic variation within a population, favoring traits that provide a selective advantage in a given environment. Traits that are beneficial for survival and reproduction are more likely to be passed on to future generations, while disadvantageous traits may decrease in frequency or be eliminated over time. Therefore, natural selection acts as a filter, favoring and preserving traits that enhance an organism's adaptation to its environment.
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Question:
Which of these statements about natural selection is true?
- Natural selection favors traits suited to the environment.
- Natural selection causes new traits to appear.
- Natural selection results in the perfect organism.
- Natural selection causes progression to a goal.
please help. Thank youuu
