Scientists rely on seismic waves that travel through earth and across its surface in order to reveal the structure of the interior of the planet i.e. liquid and solid layers.
What should we do to determine the different layers?Scientists use waves to study the different layers of the earth usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test density of liquid explosions. The seismic waves are bent, sped up, slowed down, or even reflected when they pass through the earth's layers. Different types of materials density of the liquid. A liquid is a sample of matter that conforms to the shape of a container in which it is held, and which acquires a defined surface in the presence of gravity. There is evidence density of liquid that the materials within the earth form distinct layers, each with a different density of the liquid. Scientists learned that the outer core is liquid by analyzing earthquake waves. The inner core is a dense ball of solid iron crystals.
So we can conclude that seismic waves are produced the vibrations generated by earthquakes or explosions.
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pleaseeeeee helppp why is it warm in the northern hemisphere during the summer?
Answer:
The sun heats up more and is observed in the Southern Hemisphere, that is, in the Northern Hemisphere, and vice versa. The beginning of each year in astronomy is judged on the apparent motion of the Sun in the celestial sphere.
Explanation:
I hope this helps
As human travel increases, the number of introduced species likely
O decreases.
O increases.
O stays the same.
O is eliminated.
As human travel increases , the number of introduced species likely increases .
What is species and how human travelling can increase the number of introduced species?As humans will start moving more from one place to another there will be more species number.The number of introduced species will increase sharply seeing the increase in the number of human population doing migration and travelling.The breakdown of regional distinctiveness leads to increase in the travelling period of the humans .And most importantly the introduction of new species will increase and will be impacted by the human who have come from elsewhere for either travelling purposes or migration purposes.To know more about species visit:
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The DNA of humans and mice is almost 92% similar. The similarity includes that
Mice have a tail, while humans have a tailbone. The tail bone is
Its mice share an ancestor with humans and are homologous.
The tailbone is a triangular set of bones that form the lowest part of the spine below the sacrum. The general term coccyx is used because it represents the rest of the tail. The tailbone is a triangular set of bones that form the lowest part of the spine, below the sacrum. The general term coccyx is used because it represents the rest of the tail.
The coccyx commonly known as the coccyx lies below the sacrum. Individually, the sacrum and coccyx are composed of smaller bones that fuse together and grow into a solid bone mass by age 30. The sacrum is made up of 5 fused vertebrae S1-S5 and 3-5 smaller bones fused together to form the coccyx. The tailbone helped our ancestors maintain mobility and balance, but as humans learned to walk upright, the tail shrank. The tailbone no longer serves a purpose in humans.
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In a school lab, students are measuring the breathing rate of a lizard. They place it in a cold chamber and measure its breathing rate. Then, they place it in a hot chamber and measure its breathing rate again. The lizard is comfortable in both chambers. Will the breathing rate of the lizard change or remain the same in both chambers?
The breathing rate of lizard will decrease in the cold condition, as the metabolic activity of the lizard decreases. The Lizard is the cold-blooded animal (poikilotherms).
Poikilotherms- Poikilothermic creatures are those that have the ability to modify their internal temperature in response to their external environment. Fish, amphibians, & reptiles are a few examples of poikilothermic creatures. Toads may change their body temperature in response to their surroundings and have a wide range of body temperatures.
Metabolic Activity- "A set of chemical events that take place in a living thing in order to sustain life" is referred to as metabolism. The entire number of biochemical processes necessary to keep an organism's cells alive is referred to as its metabolism.
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Use this sentence: A student creates the following list of animals found in a specific biome for
a report: gila monster, rattlesnake, coyote, and jackrabbit.
Which biome is this student writing this report about?
(1 point)
desert
grassland
tropical rain forest
tundra
What’s the correct answer answer asap
Answer:
The answer is D. Jaw bone
The answer that I put shown in the picture is incorrect help me find the correct answer
The partial pressure of oxygen in blood leaving the tissues is 40 mm Hg. The oxygen is being used continuously in the process of cellular respiration making the oxygen's partial pressure low. The partial pressure of oxygen in the b lood is 100 mm Hg.
What contribution did Jonas Salk make to science in the 1950s?
O A.
He invented DDT, the "miracle" pesticide.
• B.
He designed the first US satellite.
O c.
He developed smaller computers.
• D.
He created a vaccine against polio.
La respuesta es (D) the answer is D
Answer: The correct answer is D. He created a vaccine against polio.
Explanation: In 1954, Salk undertook a large-scale national study, enrolling over one million pediatric subjects. The next year, on 12 April 1955, he announced the results: the vaccine was both safe and efficacious. Subsequent data showed that in 1955, there were approximately 29,000 cases of poliomyelitis in the US.
When do
resources
become a cause
of competition?
A. when a resource is mutated
B. when a resource is unlimited
C. when a resource is limited and being used by multiple
species
Answer: C. when a resource is limited and being used by multiple
species
Explanation:
Competing for Resources
Niche- the space, environmental
conditions, and resources
that a species needs in
order to survive and
reproduce
If niches overlap . . .
• Two or more species
rely on the same
limited resources.
• The result is
competition.
Competitive exclusion: one of
the competing species unable to
gain sufficient resources
asexual reproduction
Answer:
Asexual Reproduction is the act of reproducing without the need of sexual intercourse
Examples:
Amoebas,Komodo Dragons,Starfish,Whiptail Lizards,Python Snakes
POSSIBLE POINTS 909
1) Fertilizers added to crops on farms can collect in runoff and enter the
watershed. This problem would be reduced in areas where
A
A) crops are grown for animals as well as humans.
B B) farms are situated on the sides of mountains.
CC) an extended drought leads to little or no rain.
D D) the growing season of the crops is longer.
1 2 3 4 5 6
Answer:
C
Explanation:
An extended drought leads to little to no rain.
Answer:
c
Explanation:
.
2. Also submit a text-file, in which you explain in about one page what you have learned about the evolution of hominids. In the end, complete the following sentence: The notion that we evolved from modern apes (chimps) is clearly wrong. Rather, what we have evidence for is ....
The notion that we evolved from modern apes is wrong but we have evidence that humans evolved from apelike ancestors.
How did hominids evolve?With time, genetic change can change the overall way of life of a specie like eating behavior, growth, and place of living. Human evolution took place when new genetic changes occur in the ancestor's populations which favor new abilities in that organisms to adapt to environmental change. Scientific evidence indicates that the physical and behavioral traits that are shared by all people come from apelike ancestors which evolved about six million years. One of the earliest defining human traits is bipedalism i.e. the ability to walk on two legs was evolved over 4 million years ago.
So we can conclude that hominids evolved because of the genetic change that occurs with time due to environmental change. We have many evidence that humans evolved from apelike ancestors due to environmental change.
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The gradual change in plants communities of a sand dune ecosystem can be classified as
The types of species in a community gradually change and are replaced through a process known as ecological succession.
Ecological successionThe process by which a region's species and habitat mix needs to evolve over time is called ecological succession. These communities gradually replace one another until a "climax community" is reached, such as a mature forest, or until a disturbance, such as a fire, happens. A key idea in ecology seems to be ecological succession.
On the island, ecological succession has produced topsoil that can support ecosystems. As shrub/grassland areas change into forested areas during ecological succession, there are different types of habitat fragmentation.
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In tomatoes, red fruit (R) is dominant over yellow fruit (r). A plant that is homozygous for red fruit is crossed with a plant that has yellow fruit. List the possible genotypes and phenotypes for the offspring along with their percentages.
The possible genotypes and phenotypes for the offspring along with their percentages.
Homozygous individuals in diploid organisms (2n) carry two copies of the same gene variation (i.e., the same allele).Heterozygous individuals carry two alleles for the same gene locus.In total dominance, the dominant allele entirely covers the recessive allele.This is further explained below.
What are phenotypes?Generally, A collection of an organism's visible features or traits is referred to as its phenotype in the field of genetics.
The phrase refers to the physical shape and structure of the organism, as well as its morphology, its developmental processes, its biochemical and physiological qualities, its behavior, and consequences of behavior.
In conclusion, When a dominant red fruit (RR) plant is bred with a recessive over yellow fruit (RR), the phenotypic and genotype are Rr. Complete supremacy.
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A spoonful of a white substance is mixed into a beaker of water to form a solution. The substance is either sugar or salt. Which step would be most useful for finding out whether sugar or salt is in the beaker?
To determine whether the substance is sugar or water, get a battery and connect a wire to it to a light bulb. Allow the circuit to be completed by the solution; if the substance is water, the bulb will light up as salt is an electrolyte, but if it is sugar, the bulb will not light up as sugar is not an electrolyte
What are electrolytes?Electrolytes are substances that when in the molten or solution form conduct electricity and are decomposed by the electricity passing through them.
Electrolytes are ionic compounds. Because the ions are not free to move when they are in the solid state, electrolytes do not conduct electricity as solids except they are molten or dissolved in water.
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what do we call the outer layer of the nucleus
The outer layer of the nucleus that separates it from the cytoplasm is the nuclear envelope. It is considered as a highly regulated barrier and is described as a double-membrane structure which is the outermost part of the nucleus. It is the passageway of molecules from the nucleus to the cytoplasm. It isolates the DNA from molecules that can cause its damage and affect its different functions.
In context, the expression “To look, not read” (line 25) affects the pacing of the poem by implying a shift in time that has which effect?
To look outside. they are tough Transfer, connect, up and down. hour. Updated snow fell. The soft "I can't seem to read it now" (line 25) suggests a change in time and affects the pacing of the poem.
Walk at your normal pacing on one course and then come back. It's usually because you're excited or worried. He wandered the room nervously. He walked back and forth waiting for the doctor's call. Thesaurus, synonyms, antonyms, and examples. An example of pacing is that the shifts are slow. An example of pacing is to take one step.
Pacing is defined as repeating the same movement over and over or controlling the development of something. An example of speed is going up and down the hallway while waiting for your wife to get ready to leave. The step is a simple way to measure a linear distance while walking. It can be used outdoors or indoors, in the forest, or on the ground.
The size date of the pacing dates back to Roman times. The Roman tempo, measured from the heel of the foot to the heel of the same foot in the subsequent section, is approximately 58.1 inches. Lecture speed is a term used by instructors to describe how instructors progress their lesson plans on a daily and long-term basis. Tempo is essentially a way of arranging commands in a way that makes the best use of complex time, but not too fast.
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Which is the process used by the cell to rid itself of unwanted, large substances? passive transport
exocytosis
active transport
please help asap
endocytosis
The exocytosis mechanism is the process used by the cell to rid itself of unwanted, large substances (Option 2).
What is the exocytosis mechanism?The exocytosis mechanism is a cellular process by which the vesicles inside the cell form invaginations of the cell membrane to discharge byproducts outside the cell. This process (exocytosis mechanism) is fundamental to transporting bis substances and water to outside the cell.
Therefore, we can conclude that the exocytosis mechanism is used by cells to eliminate big byproducts which cannot be removed by other transport cell mechanisms such as diffusion.
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You have been given a stock glucose solution with a concentration of 100mg/mL. To perform the glucose assay in lab today, you must dilute the 100mg/mL stock solution of glucose to concentrations of 80mg/mL, 60mg/mL, 40mg/mL, and 20mg/mL. You need to prepare 1mL of each dilution. Explain how you would make the 4 dilutions from the glucose stock solution.
In order to prepare 1 mL 80 mg/mL, 1 mL 60 mg/mL, 1 mL 40 mg/mL, and 1 mL 20 mg/mL glucose solution from a 100 mg/mL stock solution, 0.8 mL, 0.6 mL, 0.4 mL, and 0.2 mL of the stock will be taking and diluted with 0.2 mL, 0.4 mL, 0.6 mL, and 0.8 mL water resectively.
DilutionThe dilution principle states that the number of moles of solute in the original stock before dilution must be equal to the number of moles of solute in the diluted stock.
This principle is mathematically expressed as: m1v1 = m2v2
Where: m1 and v1 = molarity and volume before dilution
m2 and v2 = molarity and volume after dilution.
In this case, the stock is 100 mg/ml.
To prepare 1 ml, 80 mg/mL solution: m1 = 100 mg/mL, v2 = 1 mL, and m2 = 80 mg/mL.v1 = v2m2/m1
= 1x80/100
= 0.8 mL
This means that 0.8 mL of the stock will be taken and diluted with 0.2 mL of water to make 1 mL, 80 mg/mL solution.
To prepare 60 mg/mL solution:v1 = 1 x 60/100
= 0.6 mL
This means that 0.6 mL of the stock will be taken and diluted with 0.4 mL of water to make 1 mL, 60 mg/mL solution.
To prepare 40 mg/mL solution:v1 = 1 x 40/100
= 0.4 mL
This means that 0.4 mL of the stock will be taken and diluted with 0.6 mL of water to make 1 mL, 40 mg/mL solution.
To prepare 20 mg/mL solution:v1 = 1 x 20/100
= 0.2 mL
This means that 0.2 mL of the stock will be taken and diluted with 0.8 mL of water to make 1 mL, 20 mg/mL solution.
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The spores that funguslike protists produce
A:
break down food for the protist
B:
produce slime on which the protist can move
C:
form pseudopods
D:
grow into new organisms
Answer: D. grow into new organisms
This plant cell has been sliced in half and you are looking into one of the halves. How would you describe the structure of the cell?
The fundamental unit of life in species belonging to the kingdom Plantae is the cell. They are eukaryotic cells, which have specialized components called organelles and a real nucleus that performs several duties. They also have a cell wall, which serves as support for the structure.
Structure of plant cell :Plant cells have a cell wall, a large central vacuole, and plastids like chloroplasts. The cell wall is a substantial, rigid covering that encloses and physically supports the cell. Outside the cell membrane is where it is found. Turgor pressure against by the cell wall is maintained by the central vacuole.
After mitosis, plant cells divide in half by building a new cell wall (cell plate) between daughter nuclei. The phragmoplast, a cytoskeletal component, receives golgi-derived vesicles that are then transported there and fused to form the cell plate.
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ATP --> ADP + P is an example of an _reaction,because there is __an
of the energy
energy.
endergonic; input
exergonic; input
exergonic; output
endergonic; output
ATP → ADP + P is an example of an endergonic reaction, because there is an output of the energy.
An endergonic reaction is one that calls for free electricity to proceed. An example of an endergonic response of biological hobby is photosynthesis. Photosynthetic organisms conduct this response by using using sun photons to drive the discount of carbon dioxide to glucose and the oxidation of water to oxygen.
Within the exergonic response, the reactants are at a higher unfastened power degree than the goods reaction is going energetically downhill. In the endergonic response response, the reactants are at a decrease loose power stage than the products response goes energetically uphill.
The endergonic reactions of photosynthesis and chemosynthesis allow creatures at the bottom of the energy pyramid to live to tell the tale and to feed organisms like ourselves, who get their strength by means of breaking down sugars and fats to free up that stored power.
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Alex opens the bread drawer and discovers a moldy loaf of bread. Describe what alex can conclude about the mold using the cell theory?
Based on the cell theory, Alex can conclude that a particular kind of fungus called mold grows on both plants and mammals. It resembles a cluster of mushrooms under a microscope.
The roots that the stalks, or sporangiophores, are linked to enlarge as they mature into soft meals like bread. Sporangia, which create spores that launch into the air and drift to a new host to multiply, are found atop the stalks.
What are Fungi?Fungi are a group of spore-producing organisms, such as molds, yeast, mushrooms, and toadstools, that feed on organic matter.The presence of chitin in fungi's cell walls distinguishes them from plants, bacteria, and some protists and separates them into a separate kingdom. Like animals, fungi consume matter that has already been dissolved in their surroundings. Typically, this is done by secreting digestive enzymes into the environment. They do not photosynthesize, fungi. They move through growth, except spores (some of which are flagellated), which can move through the air or water. In ecological systems, fungi play a key role in decomposition.The nuclei of fungal cells are membrane-bound and contain chromosomes with coding and non-coding DNA segments known as exons and introns, respectively. Membrane-bound cytoplasmic organelles found in fungi include mitochondria, membranes containing sterols, and ribosomes of the 80S type.To learn more about Fungi, refer to:
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My question is in the image
Answer:
Probably A
Explanation:
Which tissue covers the heads of the bones
Answer:
The tough, thin outer membrane covering the bones is called the periosteum.
How are damaged frontal lobes better if a younger person is injured in the frontal lobe than a 60-year-old man?
The frontal lobe damage would be greater to the 60-year-old man owing to the shrinking brain size.
What are the frontal lobes?The brain is the organ that has the sole job of attempting and actually performing the task of trying to get all the parts of the body working effectively. he brain is a sort of administrator of the body. It the follows that the brain is the sole coordinator of the body and it is rightly located at the head.
Now there are several parts of the brain that are known to play various roles in the life of an individual. In this case, we can see that we talking about the frontal lobe located around the forehead and is very much impacted by an injury.
Owing to the fact that the brain shrinks with age, the older person would suffer a much higher memory injury compared to a younger person.
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Living and nonliving parts of an environment together are referred to as a(n)
Explanation:
The interaction between living things Make up a total ecosystem understand any one part of it requires knowledge of how that part interact with one other
How do mitochondria support cellular functions?
Responses
They produce proteins.
They store the genetic information.
They convert energy from the sun into glucose.
They convert glucose into usable energy.
Answer: They convert glucose into usable energy.
Explanation:
I TOOK THE TEST
Which is not an abiotic factor?
A. soil
B. temperature
C. climate
D. trees
Answer:
Option D. should be correct
Explanation:
prove me wrong
Question 1-3
The unique properties of water enable life to exist on Earth. Which of these is a property of pure water?
It dissolves many substances
o its sold form is denser than its liquid form.
o it is slightly more acidic than air.
o It has a low heat absorption capacity:
ALL
It dissolves many substances.
Water is used in the breakdown of molecules in metabolic processes. It will dissolve what cells use for energy and give that energy in the process.