What is the role of gravity in our solar system?
Choose 1 answer:
Earth's gravity causes the sun and the other planets to revolve around it.
The sun's gravity causes Earth and the other planets to revolve around it.
Our solar system's gravity causes other star systems in the galaxy to revolve around it.
Answers
Related Questions
Which of the following creates variation through and random combining of genetic information?
A. evolution
B. mutations
C. lateral gene transfer
D. reproduction
Answers
Answer:
B. mutations
Explanation
I believe this is the answer because even though mutations can be bad, there are also good as they can provide genetic variation to a population, which can result in the trait being passed to the offspring.
Answer:
D
Explanation:
Which event is caused by the transmission of waves?
OA. A sound echoes through a canyon.
OB. A fish in a pond looks larger than it is.
OC. A sound is heard through a door.
D. An image of a face appears in a mirror.
Answers
How do I know this?
There are four things a wave can do.
1) reflection - this is when a wave hits something and bounces back perfectly.
2) absorption - this is when a wave gets absorbed (it does not come out the other side).
3) transmission - this is what your question is talking about. This is when a wave passes through something and comes out the other side unchanged
4) refraction- this is when a wave passes through something and gets bent
When we hear an echo, this is because a sound wave has been reflected.
When a fish looks larger than it really is, this is because the light wave that allows us to see this fish is bending
When you see yourself in the mirror, this is because light waves are reflected.
Sound is heard through a door, because the sound wave is *transmitted* through the door and comes out the other side. That’s why we can hear it.
Hope that makes sense
Select the correct answer.
If pinecones are placed in water, they close up. But they open up in warm and dry conditions. How do pinecones benefit
from this characteristic?
A. It helps carry out photosynthesis efficiently.
B. It protects their seeds from unfavorable conditions,
C. It allows the plant to mature for reproduction.
D. It helps the plant take in nutrients from the environment.
i made this a question bc it doesn't make sense from anybody else's but i just got the right answer its B.
Answers
Komodo dragons are a species endemic to which country?.
Answers
Answer:
Indonesian
Explanation:
Indonesian is named after the island where humans spotted a dragon-like creature for the first time, the Komodo dragon is an endemic Indonesian species found on Komodo Island and its neighboring islands.
Pancreatic juice contains all of the following substances except: Question 7 options: a) pepsinogen. b) nucleases. c) amylase. d) chymotrypsin.
Answers
Pancreatic juice contains all of the following substances except nucleases. Thus, the correct option is B.
What are the enzymes that Pancreatic juice contains?Pancreatic juice contains enzymes like trypsinogen, chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase, amylase, and pepsinogen.
Pancreatic juice is secreted by the pancreas, which possesses a diversity of enzymes that helps in the digestion of proteins, fats, lipids, carbohydrates, etc.
Therefore, it is well described above.
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2. Which of the following is an inference?
A. You believe that a tree has 43 tree-rings by counting them.
B. You believe the moon has craters when you look through the telescope.
C. You believe the temperature is 75 degrees F by checking the thermometer.
D. You believe it rained when you see a mud puddle.
Answers
Answer:
D. You believe it rained when you see a mud puddle.
Explanation:
A. is incorrect because an inference is an educated guess, and counting 43 tree rings is a conclusion.
C. is also incorrect because you found the temperature with a thermometer, there was no inference made before checking it.
B. is incorrect; inferences are based on past experiences/knowledge, which looking through a telescope at craters on the moon is not doing. It does not disclose other means of reaching the conclusion.
D. is correct. Using skills of observation, you infer that the mud puddle could have been caused by rain.
You believe it rained when you see a mud puddle is an inference. Thus, option D is correct.
Inference is the process of drawing a conclusion from evidence. It is a type of reasoning that involves using existing information to make educated guesses about missing pieces of information. Inferences can be made in many different contexts, such as in everyday life, in literature, and in science.
In other words, an inference is a conclusion that is drawn from evidence. In this case, the evidence is the mud puddle, and the conclusion is that it rained.
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All of the following are factors in natural selection except…
A.) Competition with other organisms
B.) Environmental changes such as climate shifts.
C.) Technological advances in food production
D.) Organisms selecting advantageous trays among their mates to pass along traits to their offspring.
Answers
Answer:
C.) Technological advances in food production
Explanation:
A cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result due to incomplete dominance. then, two of the purple offspring are crossed. what proportion of the offspring from the second cross will be purple? 1 in 4 2 in 4 3 in 4 4 in 4
Answers
The expected proportion of purples individuals in the F2 of a heterozygous cross (purple phenotype) is equal to 2 in 4.
What is a Punnett square?A Punett square is a diagram used to estimate the genotypic and phenotypic proportions in a given cross.
In this case, purple individuals (Aa genotype) will be:
A a
A AA Aa
a Aa aa
In conclusion, the expected proportion of purples individuals in the F2 of a heterozygous cross (purple phenotype) is equal to 2 in 4.
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Answer:2 in 4
Explanation:
I got it right on edge
How can these chemicals harm people? Which people are most at risk and why?
Answers
Chemicals such as concentrated acids and bases are harmful when they are consumed or come in contact with the skin.
What are chemicals?A chemical is a substance which can take part in chemical reactions and which possesses chemical properties.
Chemicals can be harmful or harmless.
Chemicals can cause harm to people when consumed or when they come in contact with the skin.
Chemicals such as acids and bases in their concentrated forms cause burns to the skin and the internal organs and mat lead to death.
Chemists who work with chemicals are most at risk to harm from chemicals.
Therefore, chemicals such as acids and bases in their concentrated forms are harmful when they are consumed or come in contact with the skin.
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You look in the microscope and see sister chromatids moving to opposite sides of the cell. You conclude the cell is in:
Answers
Answer:
Anaphase is the right answer
Explanation:
what are the characteristics of kingdom monera
Answers
see the attached file!!!
In a marine ecosystem, an already existing large population of purple coloured sea urchins increases as starfish eats other colours. Such a type or selection represents
Check for the attachment for the options
explain your answer
Answers
This type of selection represents Disruptive selection.
What is Disruptive selection?Disruptive selection is also called diversifying selection, describes changes in population in which extreme values for a trait that are favored over intermediate values.
So we can conclude that purple coloured sea urchins increases as starfish eats other colour, this type of selection represents Disruptive selection.
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What is one condition that is necessary for a hurricane to form
Answers
Answer:
humid air
Explanation:
For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.
What is another natural process that could contribute to the evolution of a species genomes?
Answers
organism's ability to survive to reproductive age and produce offspring.
The more offspring an organism produces, the greater its biological fitness
dr naJiiB ibraHim
Answer: A natural disaster, such as an earthquake or a volcanic eruption, could affect the evolution of a species’ genome. These disasters could kill a large number of organisms at once, decreasing the genetic variation in the gene pool. In some cases, large populations may become separated, which can lead to several smaller populations evolving in different ways.
Explanation:
What idea did Francis Redi's experiment with the meat and maggots disprove?
*
a. biogenesis
b. spontaneous generation
c. endosymbiosis
d. primordial soup
Answers
All of the following are ways in which DNA technology plays a role in medicine except
Answers
All of the following are ways in which DNA technology plays a role in medicine except examining paternity.
What is DNA?
This is referred to as deoxyribonucleic acid and contains genetic instructions in organisms.
DNA technology plays a role in medicine such as formulation of drugs, high yield crops etc.
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Students were learning about photosynthesis in science class. the teacher asked the class why photosynthesis was important. which student responses were correct about the importance of photosynthesis?.
Answers
Answer:
I have no idea
Explanation:
the app is making me write this sorry
The development of a new experimental method is most likely to change a theory if it makes it possible to
analyze samples when they are frozen.
perform the experiment in a different lab.
obtain and analyze results more quickly.
study a larger sample size than before.
Answers
The development of a new experimental method is most likely to change a theory if it makes it possible to study a larger sample size than before.
What is a theory?A theory is a scientific explanation of a phenomenon which is backed by strong experimental results.
We know that science is dynamic and theory changes with increasing evidence. Hence, the development of a new experimental method is most likely to change a theory if it makes it possible to study a larger sample size than before.
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Answer:
IT IS DDDDDD study a larger sample size than before.
Explanation:
ONEDGE 2023
Which step comes between identifying a need and generating ideas in the technological design process?
Answers
The step that comes between identifying a need and generating ideas in the technological design process is identify a problem.
What is technological design?Technological design is the process in which several techniques are used to developed new ideas or technology for efficiency.
Therefore, The step that comes between identifying a need and generating ideas in the technological design process is identify a problem.
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What are other producers besides plants
Answers
Answer:
bacteria,moss and algae
The phosphorus cycle differs from the biogeochemical cycles in that
it does not have an atmospheric reservoir.
it does not have an oceanic reservoir.
there is no assimilation of phosphorus.
there is no decomposition of phosphorus.
Answers
The phosphorus cycle differs from the biogeochemical cycles because it does not have an atmospheric reservoir.
Why phosphorus cycle differs from the biogeochemical cycles?
Phosphorous cycles move through several components of the biosphere, hydrosphere, and geosphere but not atmosphere whereas the biochemical cycle moves through all sphere.
So we can conclude that the phosphorus cycle differs from the biogeochemical cycles because it does not have an atmospheric reservoir.
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The phosphorus cycle differs from the biogeochemical cycles in that it does not have an atmospheric reservoir. Option A, This is further explained below.
What is the phosphorus cycle?Generally, the phosphorus cycle is simply defined as the planet's phosphorus being locked up in rocks and sediments and must be extracted by processes like weathering.
In conclusion, In contrast to biogeochemical cycles, the phosphorus cycle does not include an atmospheric reservoir.
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Jenna wants to know which brand of new batteries last longest in her digital camera. She writes the following statement on her lab sheet: The most massive battery will last the longest. What part of her investigation has she written?
A
analysis
B
hypothesis
C
question
D
conclusion
Answers
Answer:
b- hypothesis
Explanation:
B, because you are writing what you think the outcome is. Which is a hypothesis.
What are the advantages and disadvantages of humoral
response ?
Please help thank you
Answers
The immune response involving the transformation of B - cells into plasma cells that produce and secrete antibodies to a specific antigen. It develops in bone marrow.
Advantages of Humoral response
Humoral immunity develops quickly than cell mediated immunity.Extracellular microorganisms and there poisons are targeted by humoral immunity.Humoral immunity is considered to play an important role in MS pathogenesis.Disadvantages of Humoral response
humoral immunity involves a set of molecular components and processes that differ from cell-mediated immunity.Requires expensive robotics for printing arrays.Learn more about Humoral immunity here:
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Read the article to learn more about the human
chromosomes. Use chromosomes 11 and 17 to
answer the following questions.
Chromosome Map
Chromosome 11 is made of over million base
pairs.
Approximately how many genes are found on
chromosome 11?
DONE
List the genetic disorders found on chromosome
11.
DONE
What do you know about any of those disorders?
DONE
Answers
Chromosome 11 in humans is made up of over approximately 135 million base pairs. It represents about 4-5% of the total DNA in cells.
What do you mean by Chromosomes?Chromosomes may be defined as a thin-thread-like structure that is present in the nucleus of the cells that contains genetic information.
Chromosome 11 contains about 1300-1400 genes that furnish instructions for the cells to make proteins for metabolic activities.
The genetic disorders that are associated with the chromosome 11 are:
AlbinismThalassemiaAutismJacobsen syndromeBeta-Ketothiolase deficiency and many more.Each of the above genetic disorders has its own specific modes of causing symptoms and infections in the human body.
Therefore, it is well described above.
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Answer:
A structure found inside the nucleus of a cell.
Explanation:
A closed ecosystem made by humans is called…
Answers
Answer: A closed ecological system for an entire planet is called an ecosphere.
Explanation: A closed ecological system for an entire planet is called an ecosphere. Man-made closed ecological systems which were created to sustain human life include Biosphere 2, MELiSSA, and the BIOS-1, BIOS-2, and BIOS-3 projects.
Answer:
An Ecosphere- according to the internet
What is the difference between a food chain and a food web?
A. A food web shows multiple food chains that are interconnected.
B. A food chain shows multiple food webs that are interconnected.
C. A food chain is used when there are no decomposers present, a food web includes them and shows the recycling of nutrients.
D. A food web is only used when organisms that have multiple ways of getting energy are involved, such as Omnivores.
Answers
Answer:
A
Explanation:
A food web shows multiple food chains that are interconnected.
WILL MARK BRAINLIST!! you can only answer one part if you don't feel up to it all
Answers
Answer to b
"Upon exposure to insecticides, insects that do not carry the resistance genes die, thus allowing the individuals with the resistance genes to survive and reproduce, creating more resistant insects."
Environments are covered with manmade structures like roads, buildings, and sewers. Green spaces such as parks, backyards, and undeveloped lots are scattered in among the developed areas instead of all connected together. Plants and animals have to deal with exposure to toxins from vehicles and loss of habitat and food sources. These are all ways that _______.
Answers
Answer:
Nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem
Explanation:
Answer: B
Explanation:
Widow's peak is dominant to straight hairline, and freckles are dominant to no freckles.
One parent is heterozygous for both traits and one parent has a straight hairline and
no freckles. Use H for hair, and F for freckles. List the genotypes of the parents and
then complete a dihybrid cross for their potential offspring. List the phenotypic ratio
of the offspring once you have completed the cross.
Answers
The phenotype ratio would be 25% each for widow's peak and freckles, widow's peak without freckles, straight hairline with freckles, and straight hairline without freckles.
Dihybrid crossingGenotype of the heterozygous parent: HhFf
Genotype of the other parent = hhff
Crossing the two parents:
HhFf = 1/4 = Widow's peak, freckles
Hhff = 1/4 = Widow's peak, no freckles
hhFf = 1/4 = straight hairline, freckles
hhff = 1/4 = straight hairline, no freckles.
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100 points + brainliest answer!!!
draw an ecological pyramid of an ecosystem that has twice as much biomass in producers as there is in primary consumers, twice as much biomass in primary consumers as there is in secondary consumers, and twice as much biomass in secondary consumers as there is in tertiary consumers
Answers
Explanation:
ecological biomass is shown on the figure above