The answer is A. Being a liquid at room temperature, surface tension, and that ice floats.
Movement of carbon from the nonliving environment into living
things and back is called:________ cycle.
A.Energy Pyramid
B.PSHH
C.Carbon
D.Water
Which shell adaptation did you choose for part two and why? Discuss the results and the effectiveness of the adaptation.
Answer:
Well first you have to say which one you chose, but the hinged helps the snail stay connected to the ground, or solid objects and the thicker helps protect it against other creatures trying to harm it.
Explanation:
Im a genius
help me plzz
26. Which of the following lists the steps of the Technological Design Process in the correct order?
A. Implementation, Solution Design, Evaluation, Problem Identification.
B. Solution Design, Evaluation, Problem Identification, Implementation
C. Problem Identification, Solution Design, Implementation, Evaluation
D. Problem Identification, Solution Design, Evaluation, Implementation
What is the porosity of the sand sample?
A)
99%
B)
72%
C)
34%
D)
16%
Answer:
C) 34%
The other two samples are-
Gravel- D) 38%
Silt- B) 53%
Explanation:
To find the porosity of the sample, you do (volume of fluid)/(volume of substance) X 100. We were given a 300mL sample of sand, and 400 mL of water. You must also take account of how much surface water is found, which you add to however much water you put into the 300mL sample.
Gravel has the highest permeability, and silt has the lowest.
The porosity of the sand sample is 34%. The range of the porosity of sand particles lies between 25-50%. Thus, the correct option is C.
What is Porosity?Porosity is a measure of the void spaces in a material. It is a fraction of the volume of voids over the total volume of the system, which lies between 0 and 1, or as a percentage between the range of 0% and 100%. Strictly speaking, some tests measure the accessible void, and the total amount of void space which is accessible from the surface.
Sand is the largest mineral particle and it has more pore space which is between the particles of silt or clay. Silt particles are smaller than that of sand, but larger than that of clay particles. Likewise, there is less pore space or void space between the silt particles than that between sand particles, but more than between the clay particles.
Therefore, the correct option is C.
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what is the realationship between a planets distance from the sun and the length of its year? explain
Answer:
the closer to the sun the less a year and the further away the more time it has in a year.
Where does the oxygen that plants add to the atmosphere originally come from
Answer:
The O comes from the water (H2O)
Explanation:
During photosynthesis the water molecules are broken down into O molecules and are released as emissions.
Which substances are particularly important in storing food in the cell ?
Answer
vacuole
Golgi bodies
lysosome
compound light microscope
Which organelle makes the proteins that are needed by the cell? cell membrane Golgi apparatus ribosomes nucleus
Answer:
c)ribosomes
Explanation:i hope this helps
Ribosomes are the organelles responsible for protein synthesis in the cell and the correct option is option 3.
Ribosomes play a crucial role in translating the genetic information stored in the DNA into functional proteins. Ribosomes can be found in both prokaryotic and eukaryotic cells and are either free-floating in the cytoplasm or attached to the endoplasmic reticulum.
During protein synthesis, ribosomes read the messenger RNA (mRNA) molecule and assemble amino acids in the correct sequence to form a protein chain. This process occurs through a series of steps, including initiation, elongation, and termination. The ribosomes provide the site where these steps take place, ensuring that the proteins are synthesized accurately and efficiently.
While other organelles, such as the nucleus and Golgi apparatus, play important roles in the overall process of protein production and modification, it is the ribosomes that directly synthesize the proteins based on the instructions encoded in the mRNA molecules.
Thus, the ideal selection is option 3.
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The biosphere is the layer of the planet where life exists. Where everything lives.
True or False?
Answer:
It is true, I took the test.
Explanation:
=)
Which is one property of coal that makes it ideal for use in a power plant?
Answer:
it burns easily and it gives energy
Explanation:
The calorific power of coals varies from 2,000 to 7,000 kcal/kg, from anthracite and coal to lignite and peat.
The dry distillation of coal produces four fractions: ammonia, tar, natural gas, and coke. The latter (hard, resistant, and porous) is used in the metallurgy of iron and steel (steel).
Lignite is used mainly in thermal power plants to obtain electrical energy from it. Peat is used as a domestic fuel.
Answer:
it burns easily
Explanation:
A 40 kg-skier is standing at the top of a 12-meter high slope. What is her potential energy? PE = m x g x h (g = 10m/s2)
A. 6000J
B. 48J
C. 4800J
D. 400J
Answer:
a
Explanation:
make an essay about the importance and conservation of energy sources...
I need it :))
Answer:
mark me brainlist if i help:)
Explanation:
First of all, energy conservation plays an important role in saving non-renewable energy resources. Furthermore, non-renewable energy sources take many centuries to regenerate. Moreover, humans consume energy at a faster rate than it can be produced. Therefore, energy conservation would lead to the preservation of these precious non-renewable sources of energy.
Energy conservation will reduce the expenses related to fossil fuels. Fossil fuels are very expensive to mine. Therefore, consumers are required to pay higher prices for goods and services. Energy conservation would certainly reduce the amount of fossil fuel being mined. This, in turn, would reduce the costs of consumers.
Consequently, energy conservation would strengthen the economy as consumers will have more disposable income to spend on goods and services.
Energy conservation is good for scientific research. This is because; energy conservation gives researchers plenty of time to conduct researches.
Therefore, these researchers will have more time to come up with various energy solutions and alternatives. Humans must ensure to have fossil fuels as long as possible. This would give me enough time to finding practical solutions.
A rabbit eats a carrot for food. What happens to the molecules of the food?
A.
The molecules get destroyed in the animal's body.
B.
The molecules get converted to energy and other types of molecules.
C.
The molecules get completely eliminated by the rabbit as waste.
D.
The molecules get converted to energy only.
Answer:
[tex]\boxed {\boxed {\sf B. The \ molecules \ get \ converted \ to \ energy \ and \ other \ types \ of \ molecules}}[/tex]
Explanation:
Let's examine each answer choice.
A. The molecules get destroyed.
This is false. Matter can't be destroyed.B. The molecules are converted to energy and other molecules.
This choice is true. Different molecules are used for different purposes.C. The molecules get completely eliminated by the rabbit as waste.
This is false. Nutrients and molecules are extracted and used in the body for processes like cellular respiration.D. The molecules are converted to energy only.
This is false. Some molecules will be used to produce ATP, but not all. Some will be used in other processes and eliminated as waste.The best answer is Choice B.
Define abiotic factor and give four examples.
Answer:
Explanation:
Abiotic factor affect the living organism vital
Water
Minerals
Light
O2 or CO2
Answer:
Nonliving things in an ecosystem.
Explanation:
TemperaturePrecipitationLandformsNutrient levels(Agriculture)
why paddies should
be well leveled.
Answer:A well-leveled field is seen as laying the foundation for a good water management. If a field is not properly leveled, water may stagnate in the lower parts whereas higher parts may get dry due to water receding.
Explanation:
PLEASE HELP In which situation would the availability of shelter most affect the survival of the organism?
Answer: D
Explanation: A frog going to another pond means that there is no room in the old pond available.
HELPPP! ASAPP!!!
Which of the following statements is true about viruses?
Viruses are living organisms.
Viruses that cause disease in plants can also make humans sick.
Viruses are very small and can only be seen through electron microscopes.
VIruses are about the same size as bacteria.
Answer:
C
Explanation:
Viruses are truly that small, and nowhere near the size of most bacteria.
Answer: Viruses are very small and can only be seen through an electron microscope
Explanation:
The shape of a protein is originally determined by the?
vitamines
Explanation:
2 sentences please! idk how many people are still on this app but pls help haha
Use complete sentences to explain how global wind patterns such as the trade winds in the northern hemisphere would be impacted in the
absence of the Coriolis Effect.
Answer:
Coastal currents are affected by local winds. Surface ocean currents, which occur on the open ocean, are driven by a complex global wind system. To understand the effects of winds on ocean currents, one first needs to understand the Coriolis force and the Ekman spiral.
If the Earth did not rotate and remained stationary, the atmosphere would circulate between the poles (high pressure areas) and the equator (a low pressure area) in a simple back-and-forth pattern. But because the Earth rotates, circulating air is deflected. Instead of circulating in a straight pattern, the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths. This deflection is called the Coriolis effect. It is named after the French mathematician Gaspard Gustave de Coriolis (1792-1843), who studied the transfer of energy in rotating systems like waterwheels. (Ross, 1995).
Explanation:
what's the definition of phloem
Answer:
Ploem is made up of four types of elements sieve tube , companion cell , phloem fibres and phloem parenchyma .
What are some similarities of photosynthesis and cellular respiration?
Answer:
Similarities ...
→ Both involve in production of energy
→ Both involve the exchange of gases
→ Both the process takes place in cell organelle which was considered as endosymbiotic organism. They are chloroplast and Mitochondria, Photosynthesis takes place in Chloroplast where as respiration takes place in mitochondria.
→ At critical condition both have alternate pathway.
Which of the following is an example of a vestigial structure?
A:Brain in a human
B:gills on a fish
C:Whale leg bones
D:tail on a monkey
The density of gas particles in a section of Earth’s atmosphere decreases. Which of the following is the most likely explanation for this event?
The air pressure in that section of Earth’s atmosphere decreased.
The air pressure in that section of Earth’s atmosphere increased.
The total number of gas particles in Earth’s atmosphere decreased.
The total number of gas particles in Earth’s atmosphere increased.
As altitude increases, temperature decreases. What is the relationship between atmospheric pressure and the density of gas particles in an area of decreasing pressure? As air pressure in an area decreases, the density of the gas particles in that area decreases.
Please look at the images below. Please define the word monoculture and explain how bees are important to our society today from the articles you have read.
The function of an enzyme is to
A Slow down chemical reactions
B.Speed up chemical reactions
C.Stop chemical reactions
Answer:
C:speedup chemical reaction
Explanation:
Enyme's main function is to increase reaction rate by decreasing activation energy.
i.e
Chemical Reaction 1 without enzyme || Chemical Reaction 2 with enzyme
Activation Energy= 9000J Activation Energy= 500J
Reaction Rate=1^-7 Reaction Rate=1^+3
time to reach equillibrium=7h time to reach equillibrium=20min
Help please (the subject is science)
Answer:
1. muscular system
2. lymphatic system
Explanation:
I think this is right. forgive me if I'm wrong
Answer:
B D B
Explanation:
the integumentary system, the muscular system and the Lymphatic system
What is the main characteristic of angiosperm seeds?
A. they are cones
B. they have wings
C. they are inside fruit
D. they have food
Answer:
A
Explanation:
The angiosperm are cones because it is covered
a species population growth is limited by
Answer:
Resources
Explanation:
Why do most plants appear green?
Answer:
Most plants appear green because they absorb all other colors of light and reflect back green into our eyes. Since chlorophyll molecules use the red (opposite of green) end of the visible light spectrum to complete photosynthesis, then red is most heavily absorbed.
Chlorophyll gives plants their green color because it does not absorb the green wavelength of white light which is the light wavelength reflected from the plant, so it appears green.
What is Chlorophyll?The green color of many plants and algae is due to chlorophyll. Chlorophyll is defined as concentrated within organisms in structures called chloroplasts.
It is the green pigment in plants, algae and cyanobacteria that is essential for photosynthesis. The central structure is an aromatic porphyrin or chlorinated porphyrin ring system with a chelated magnesium atom.
Chlorophyll is formed in several different forms where chlorophyll a and b are the major types found in higher plants and green algae; Chlorophylls c and d are found mainly with a in various algae while the Chlorophyll e is a rare type found in some golden algae and bacterio-chlorophyll is present in some bacteria.
Thus, Chlorophyll gives plants their green color because it does not absorb the green wavelength of white light which is the light wavelength reflected from the plant, so it appears green.
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Which organ malfunction would cause all other body systems to be starved of oxygen
Answer:
heart attack
Explanation:
A heart attack happens when one of the main arteries carrying blood to the heart, become blocked. This means the muscle will be starved of the oxygen it needs to survive.
Answer:
heart attack
Explanation: i took the test
