Everything on earth is made up of a fundamental particles that is impossible to see with the naked eye this particle is called the atom. There a over a 100 atoms or more in science. At the center of the atom is the nucleus which contains protons and neutrons. Electrons can be found moving around the orbitals or energy levels , while most of the area outside the nucleus is empty space .
Most of the mass of an atom is concentrated at the center of the nucleus.
Atoms are made up of three subatomic particles called
1. Protons
2. Neurons
3. Electrons
protons - has positively charge particles with a charge
of +1
Neutrons- has no charge it is neutral, 0 charge.
Electrons- has a negative charge particles with an charge of -1.
Relative mass of a particle is the mass compared to the mass of a proton
Relative charge of a particle is the charge compared to the charge on a proton.
Atom is a basic unit of matter have proton and neutron containing nucleus at the center and surrounding electrons.
What do you mean by atom ?
Atoms are the smallest and basic units of matter.
A negatively charged electron which surround the nucleus of the atom moving around the orbitals or energy levels.
The nucleus does not change during chemical reactions, only in nuclear reactions it will change.
In nucleus equal number of protons and neutrons, atomic number is the number of protons and atomic mass is made of the sum of protons and neutrons.
Relative mass of a matter is the mass of a proton while Relative charge of a matter is the charge on a proton.
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Which chracteristic is used for cell-cell conmunication
Answer:
Cells typically communicate using chemical signals.
Explanation:
hope this helps :)
If pharmaceutical researchers want to learn how to keep cancer cells from dividing uncontrollably, which
approach are they most likely to try?
Interrupt some stage of the cell cycle, such as the formation of the spindle that separates chromatids.
Develop strong dyes that will be able to color the chromosomes for good visualization.
Provide dangerous levels of radiation to irradiate the
cancer cells in a human being.
Starve the cancer cells by starving the patients, thereby reducing chances of cell division.
Answer:
c
Explanation:
Chemotherapy i.e. use of drugs to destroy the cancer cells by inhibiting their growth and division. Therefore, option (A) of interrupting stages in cell cycle is correct.
What do you understand by chemotherapy?
Chemotherapy is a medication that employs strong chemicals to destroy rapidly developing cells in your body. Chemotherapy is most commonly used to treat cancer because cancer cells grow and proliferate significantly faster than the rest of the body's cells. There are several chemotherapy medicines available.
Taxol (Paclitaxel) and other drugs that poison microtubules and impede the mitotic spindle have been used extremely efficiently in chemotherapy. This prevents cancer cells from proliferating and kills them.
Therefore, pharmaceutical researchers uses drugs to learn cancer treatment. Option (A) is correct.
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What separates mildew out from other fungi?
Answer:
Mildew is more identifiable and can be treated with store bought cleaner, but other fungi can be the result of a larger infestation
Genetic screening allows
a. parents to analyze the risk of certain diseases in their unborn child
b. scientists to remove the genetic disorders from unborn children
c. doctors to predict the life span of any person
d. any person to be cured of an inherited disease or disorder
Answer:
Answer is d
Explanation:
Genetic testing can reveal changes (mutations) in your genes that may cause illness or disease. Although genetic testing can provide important information for diagnosing, treating and preventing illness, there are limitations.
Minerals:
A. were once living
B. are man-made materials
C. are only found in rocks
D. naturally grow into crystals
The sun appears to move from east to west across the sky each day because Earth
Select one:
a. rotates in a clockwise direction.
b. rotates from east to west.
c. rotates from west to east.
d. none of the these.
Answer:
B. Rotates from east to west.
Explanation:
Earth's spin (or rotation) on its axis. Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.
Which of the following is an Abiotic factor?
Wind
Animals
Plants
Humans
Answer:
Wind
Explanation:
why do chicken eggs grow larger compared to other eggs?
Answer:
Chicken eggs grow larger compared to other eggs due to their relative body sizes.
Explanation:
Egg laying and the size of an egg is relative to the size of the organism. So an ostrich lays a really large egg because it is a larger animal and can handle that size. Whereas a bluebird lays a small egg because it is a small bird.
Enzymes are not specific and can work on any compound anytime
true or false
QUICK CHECK
Choose the correct measuring device for gathering
data from the list of tools in the drop-down menu.
temperature of the water
heartbeats per minute
volume of liquid
time
DONE
distance across the pond
Answer:heart monitor
Stopwatch
Digital tape measure
Thermometer
Graduated cylinder
Explanation:
Measuring devices are used as follows -1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure
What are measuring devices?The instruments that are used for the measurements of various specific items based on the laws and the theories of measurement are called measuring devices.
Specific measurements have specific measurement devices. These measure the value based on the specific unit of the measurement.
For example, an inch tape measures the length of something in inches. It also has scales of centimetres and meters.
For the measurement of length, scales and tape measures are used.
For the measurement of time, clocks are used.
For the measurement of volumes, graduated cylinders are used.
For the measurement of temperature, thermometers are used.
Therefore, the measuring devices vary according to the function it needs to perform. In this case, 1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure.
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14. Give an example of three adaptations in polar bears. Be sure to
state how each trait is an adaptation.
Answer:
Adaptations
Explanation:
1). "White" fur- Polar bears are well known for this adaptation, white fur. Their fur is actually clear, but gives the appearance of being white. This is so they can blend into their environment.
2). Fur and fat- They have very thick layers of fur and fat, to help keep them warm(insulate them), as their habitat is extremely cold. This prevents things like hypothermia and frostbite.
3). Large feet- Their feet are quite large, which gives them an advantage. It results in more even, spread out weight distribution, and gives them a better grip on the ice.
Here's an extra:
4). Greasy coat- Polar bears are excellent swimmers, and as a result of their swimming habits, they actually have a greasy coat. This grease is much like oils a duck or goose(or other aquatic aviary species) have. It causes water to roll off of them, meaning they're considered hydrophobic.
E. Coli is a type of prokaryotic bacterium that is present in contaminated food. Which describes where the genetic material is found in E. Coli?
A.nucleus
B.cytoplasm
C.cell membrane
D.ribosomes
Answer:
NUCLEUS
Genome structure
Explanation:
HELP
PLEASE GIVE ME 5 REASONS ON WHY IT IS IMPORTANT TO SAVE THE ENVIRONMENT.
PLEASE DON’T COPY FROM WEBSITES WORD FOR WORD
I WILL MARK YOU AS BRAINLIEST
Explanation:
.For the our health because if the environment is saved the we are able to get the fresh air.
.For decreasing global warming because if environment is saved then the pollution is controlled.
.For decreasing deforestation which can control landscape because saving the environment can also be taken as saving trees.
For saving the animals because the habitat of animal is forest which need to be protected by protecting environment.
.For saving the natural resource which are also the reasons of income because it attracts tourists.
Which of these is a scientific hypothesis about the growth of a plant? A Plants make a pretty decoration in the house. B It's fun to watch this plant grow. C Plants grow best when they are happy. D This plant will grow best in sunlight.
Answer:
D. Plants grow best in sunlight.
Explanation:
The other answers can't be scientifically proven, therefore they would not make a good hypothesis. A hypothesis is a statement that can be tested and verified.
Plant will grow best in sunlight. So, the correct option is (D).
What is the scientific hypothesis about the growth of a plant?According to the evolution-immunity hypothesis in ecology, fast-growing plant species should suffer more from herbivores and pathogens than slow-growing species. Tests of this hypothesis have focused on above ground plant tissues, herbivores and pathogens. This should also apply to route defense.
When the amount of fertilizer applied to the plants is increased, the growth which is the height of the plant increases. As the amount of fertilizer increases, plant growth increases.
Plant growth shall be considered as an increase in plant volume and/or mass with or without the formation of new structures such as organs, tissues, cells or cell organelles that grow in the presence of sunlight.
Thus, plant will grow best in sunlight. So, the correct option is (D).
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The largest known protein with the greatest number of amino
acids is
Answer:
Titín is the largest know protein with the greatest number of animo
The largest known protein with the greatest number of amino acids is titin.
What is titin ?Titin or connectin is a largest protein in humans which is encoded by the TTN gene, having greater than 1 µm in length and it functions as a molecular spring responsible for the passive elasticity of muscle.
It consist of 244 folded protein domains connected by unstructured peptide sequences, when the protein is stretched, the domains will unfold.
Titin protein involve in the contraction of striated muscle and connected the Z line to the M line in the sarcomere, contributes to force transmission at the Z line.
It limits the motion range of the sarcomere during tension, so it involve in the contribution of passive stiffness of muscle, it is the third most abundant protein in muscle after myosin and actin.
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25 points + brainliest! ik this is the wrong subject but not much people pick to help law Pick a side (plaintiff or defense). Pick a witness ( burglar or mr king). Choose something that could be used as evidence (an object, report, footage, etc).
Write a script on how you would introduce the evidence to the judge, pick a witness (the burglar or mr king) and write 3 questions using the evidence that will help your side.
Answer: side: plaintiff
witness: Mr. King
evedence: dog will only attack if you are on the land he is protecting
window was broken so he was trying to rob the place
guard dog was trained to attack on command
hope this helps you out
Explanation:
Please help me with this task, it should be mini essay with own words
1) Identify an acid/base reaction that humans use in everyday life. Describe how the reaction
works and why it is beneficial to humans.
Answer:
An example of a base that humans use in day to day life is things such as cleaners, a strong base is beneficial to humans in this way because it can dissolve grease and protein. On the other hand acids are very important as well because strong acids can be found in the human stomach, we would not be able to digest food without this acid presence
Explanation:
Hope this helps!
NEED HELP DUE TODAY PLZ HELP ME!!!!
I AM STUCK PLZ PLZ PLZ HELP ME!!!!
In the cell above, a mutation occurs and causes the proteins responsible for photosynthesis to malfunction.
Which labeled structure would be the most likely site in which these malfunctioning proteins exist?
Choose 1 answer:
(Choice A)
A
Structure A
(Choice B)
B
Structure B
(Choice C)
C
Structure C
(Choice D)
D
None of these labeled structures would be the site of the malfunctioning proteins.
Answer:
Structure A
Explanation:
Malfunction proteins happen when it changes the instructions for a gene to make a protein. This change or "malfunction" can disrupt any protein and cause not to work at all. When in a mutation occurs and changes the protein, it can change the development and cause serious medical conditions for a person.
Labels of the cell can be found here;
Structure A shows the Chloroplast.Structure B shows the Golgi ApparatusStructure C shows the Large Central Vacuole.Protein malfunction typically occurs in the Chloroplast.
A picture of a cell can be found below for extra clarification if needed.
Best of Luck!
Organisms need _____ to conduct essential life activities
Answer:
The correct answer is energy. Other organisms are not necessary, just like offsprings since there are many organisms that never have offsprings. Light is also not necessary with numerous organisms, especially those like the ones that live deep in the sea where light never reaches. Some form of energy is necessary for everyone.
What causes the phases of the moon?
Answer:
Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth. ... We only see the Moon because sunlight reflects back to us from its surface.
May I please have a brainliest? <3
Hope this helps-xoxo
Answer:
The rotation and revolution of the Moon around the Earth. And the Sun' s light reflecting off the surface of the moon
Explanation:
Plsss help 100 points extra
And brainliest
Answer:
turner syndrome
Explanation:
no extra x, is visible
Answer:
turner syndrome
The rate of species extinction on Earth is currently very high—perhaps as high as it has been since the time of the dinosaur extinction. Which of the following disruptions is not a major cause of this high extinction rate? a The hunting and overfishing of wildlife b The introduction by humans of invasive species into habitats c The use of animals in scientific research and experiments d The draining and filling of wetlands
Answer:
C. The use of animals in scientific research and experiments.
Explanation:
I got this answer correct when I took it.
The disruption which is not a major cause of a high extinction rate is: C. The use of animals in scientific research and experiments.
Extinction can be defined as a process or situation in which a species, family, or other taxonomic group of living organisms such as animals or plants become extinguished, destroyed, exterminated or dead.
This ultimately implies that, extinction literally means the extermination or dying out of a species, family, or other taxonomic group of living organisms.
Basically, the extinction of living organisms is mainly caused due to the effect of environmental forces and evolutionary changes such as:
Habitat fragmentation.Poor reproduction techniques.Natural disasters.Overexploitation of species by humans such as the hunting and overfishing of wildlife.Genetic inbreeding.An introduction of invasive species into natural habitats by humans.The artificial draining and filling of wetlands.In conclusion, the disruption which isn't a major cause of a high extinction rate is the use of animals or plants in scientific research and experiments because often times they are not killed and only a sample of the population is used.
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How does a healthy environment helps to make happy life?
Answer:
A healthy environment means the surroundings full of positivity , pollution free , nature that benefits your mind . A good environment makes our mind relax we can think good and positive thoughts . we can spend our lives stress free .
Seeds are the offspring of mature plants. If a seed germinates and survives, it will grow to become a mature plant. Based on this information, what level of organization describes seeds?
Tissue
⊝
Organ
⊝
Organ system
⊝
Organism
Answer: tissue
Explanation:
Water and nutrients that are not cycled are stored is a
Answer:
Reservoir
Explanation:
Answer:
reservoir
Explanation:
Curly hair, large nose, brown eyes: our
give the instructions that determine human traits, like these.
A) cells
B) gametes
C) genes
D) genotypes
15pts
Genes determine eye color, large nose and brown eyes. Therefore, option (C) is correct.
What are genes?A gene is the fundamental structural and operational component of hereditary material. DNA is the material that constitutes genes. Some genes' sole purpose is to provide instructions for making larger molecules known as proteins. However, many genes do not contain the coding necessary to produce proteins. Genes in humans can be as small as a few hundred DNA bases or as large as more than 2 million DNA bases.
Many of your characteristics, such as the color of your hair and skin, are determined by the genes that were passed down to you.
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Cells come in various shapes and sizes depending upon their function. True or False?
Answer:
true
Explanation:
Answer: true
Explanation: Cells come in various shapes and sizes depending upon their function. ... Cells combine to form organ systems, organ systems combine to form tissue, and tissues combine to form organs. (this is off google so it is copyright.. you might want to summarize)
Look up at the night sky and just wonder. Then tell me what you wondered about.
I wonder what sort of stuff happens up there that nobody is aware of. All the different kinds of possibilities. And if there is life, then what would they be doing and how are their ways of life?
how do ivasive species impact the carrying capacity of ecosystems?
Helpp ASAP !!!!!
Answer:
Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. The invasive species may provide little to no food value for wildlife. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.
C2H12O6 is a type of
Answer:
Glucose is form of carbohydrates. 6 atoms of carbon. 12 atom of hydrogen.
Explanation: