The correct answer is C. Decomposers
Explanation:
In ecology, decomposers are organisms such as bacteria that mainly decompose or break in smaller particles dead organism or waste produced by them and by doing this, they return nutrients of the living organisms to the soil. Due to this, decomposers are essential for the natural cycle of many substances and they are in the last stage in many food chains. According to this, the soil bacteria described has the function of a decomposer because this breaks down the wastes returning essential nutrients such as nitrates to the soil.
How do scientists determine the number of neutrons in an isotope of an atom?
Answer: They divide the atomic mass by two
Explanation: I'm too tired to explain Lol
List at least four things you can do to improve your ergonomics
Answer:
Alternate work positions frequently, choosing positions that make you comfortable and relaxed; In case of repetitive activities, rest every 45 minutes and stretch your body. Use anti-reflective screens or insert blinds and curtains in your workplace (too much light can make you strain your eyes and contribute to discomfort and headaches); Keep your forearms parallel to the floor and your elbows at 90º or more open. If possible, use a wrist support in the case of tables that do not have rounded edges;Explanation:
In general, ergonomics involves knowledge and technologies that allow a comfortable and productive adaptation between man and the place where he works. The idea is to “shape” working conditions for greater comfort, efficiency and safety.
Although there are countless ways to improve our ergonomics, we can name four very useful ways to do this. These forms are:
Alternate work positions frequently, choosing positions that make you comfortable and relaxed; In case of repetitive activities, rest every 45 minutes and stretch your body. Use anti-reflective screens or insert blinds and curtains in your workplace (too much light can make you strain your eyes and contribute to discomfort and headaches); Keep your forearms parallel to the floor and your elbows at 90º or more open. If possible, use a wrist support in the case of tables that do not have rounded edges;Hydrogen Bonds are weak, but they hold water molecules together and are difficult to break. Which one of the following images correctly shows hydrogen bonding between water molecules?
A. Image 1
B. Image 2
C. Image 3
D. Image 4
Answer:
Option C, image 3
Explanation:
Hydrogen bonds are weak electrostatic bond that exist between hydrogen and an electronegative atom.
In order to have hydrogen bonding, the hydrogen must be bonded to an electronegative atom.
Generally molecules having hydrogen bonded to electrogegative atom, N, O and F show hydrogen bonding.
Hydrogen bonds may exist within a molecule or between two separate molecules.
Difference in electronegativity of hydrogen and electronegative atom develops dipole which responsible for electrostatic attraction.
In image 1 and 2, hydrogen bonding is shown between two oxygen atoms, which is not correct.
In image 4, hydogen bonding is shown between two hydrogen atoms, which is also not correct.
Hence, the correct option is image 3
How is the United Kingdom planning to use driverless cars beginning in 2015?
Answer:
Government aims to modify the policy and design rules accordingly and also aims to incentive's any study in this area by technocrats . In this way United Kingdom is planning to use driverless cars beginning in 2015
Explanation:
As per the government strategy, it is believed that UK will first start using its driver less technology in mainly two segments -
a) Luxury riding services
b) Commercial vehicle such as haulage, cargo vehicles etc.
After this, the government has planned to introduce this for the consumer segment where an individual can own own (semi-) autonomous vehicles
Government has also planned to introduce a change in policy and design norms for the betterment of society. It has also attempted to partner with technological companies by providing incentives for citing their research and inventions in this era.
Answer:
C on edge
Explanation:
Object A has a density of 10 g/cm3 and a mass of 9 g. Object B has a density of 10 g/cm3 and a mass of 4 g. Which object has a greater volume and by how much? Object A, by 5 cubic centimeters Object A, by 0.5 cubic centimeter Object B, by 5 cubic centimeters Object B, by 0.5 cubic centimeter
Answer:
Object A, by 0.5 cubic centimeter
Explanation:
Density (d) is given by :
[tex]d=\dfrac{m}{V}[/tex]
m is the mass of an object
V is its volume
For object A:
[tex]V_1=\dfrac{m_1}{d_1}[/tex]
[tex]V_1=\dfrac{9\ g}{10\ g/cm^3}=0.9\ cm^3[/tex]...........(1)
For object B:
[tex]V_2=\dfrac{m_2}{d_2}[/tex]
[tex]V_2=\dfrac{4\ g}{10\ g/cm^3}=0.4\ cm^3[/tex]...........(2)
From equation (1) and (2) it is clear that volume of object A is greater by 0.5 cm³. So, the correct option is (b) "Object A, by 0.5 cubic centimeter".
how do scientific models help us better understand our world
Compare and contrast the structure and function of a compound light microscope and a scanning electron microscope. Be sure to discuss the structure and function of each as well as the function and usefulness of each when examining a specimen.
True or False: Wetlands and estuaries are critical ecosystems, but do not require protection. The answer is False
If the mother is homozygous recessive and the father is homozygous dominant. What are the genotypes of the parents?
_are chemicals that are essential to all cellular activity, helping the body convert carbohydrates and fats into energy
Answer:
The answer is vitamins
Explanation:
If a sedimentary rock becomes molten, what type of rock will be formed?
Melting and cooling sedimentary rock creates igneous rock. Subduction of a sedimentary tectonic plate is typical. As the tectonic plate advanced deeper into the crust and toward the mantle, sedimentary rock melted and became lava.
What is sedimentary rock?The sedimentary rock formation process begins with the deposition of fragments of pre-existing rocks or once-living organisms. They come into being as a result of deposits that build up on the surface of the earth. Layering or bedding structures can frequently be observed in sedimentary rocks.
Oil, natural gas, coal, and uranium, our primary energy resources, are created in sedimentary rocks and originate from them. Construction sand and gravel are derived from sediment. Sandstone and limestone are utilized as construction stone. Plaste is produced using gypsum rock.
Learn more about igneous rocks, here:
https://brainly.com/question/2500550
#SPJ5
Research suggests that there are, on average, 25 battery operated appliances in a typical household. Because batteries contain toxic heavy metals, we should be thoughtful about their use. What is the LEAST acceptable behavior when it comes to battery use and disposal?
A) Take used batteries to a company that correctly disposes of them.
B) Use only electrically powered appliances and drastically reduce battery use.
C) Use rechargeable batteries, keeping harmful battery wastes out of the environment.
D) Take used batteries to a recycling plant so they can be used for some other purpose.
Alkaline and zinc-carbon batteries can be safely disposed of in your domestic trash in the majority of areas. Ship used alkaline and zinc carbon batteries to battery recyclers. Thus, option D is correct.
What batteries contain toxic heavy metals?When batteries are thrown away in California, they are regarded as hazardous waste. This includes single-use and rechargeable AAA, AA, C, D, button cell, 9-volt, and all other batteries.
Rechargeable batteries are dangerous for the environment and human health because they contain hazardous heavy metals like lead, nickel, cadmium, and mercury.
It is advisable to recycle or properly dispose of rechargeable batteries.
Therefore, take used batteries to a recycling plant, so they can be used for some other purpose, is the least acceptable.
Learn more about batteries here:
https://brainly.com/question/14936790
#SPJ2
A scientist is studying a cross between plants that are heterozygous (Xx) for a certain trait. She will use a table similar to this one to make a Punnett square for the cross.
Which percentage of offspring will most likely have the genotype represented by the letter A in this table?
0%
25%
50%
75%
Answer:
Option B, [tex]25\\[/tex] %
Explanation:
The heterozygous genotype of the parent is Xx
The punnet square for the cross between the two parents having Xx genotype is
X x
X XX Xx
x Xx xx
Thus,
A represents the genotype – XX
B represents the genotype – Xx
C represents the genotype – Xx
D represents the genotype – xx
Out of four possible genotypes, XX (A) appears only once.
Thus the probability of occurrence of genotype A (XX) will be
[tex]\frac{1}{4} * 100\\= 25\\[/tex] %
Answer:
B, 25 percent
Explanation:
hope i got it right
in a solution a substance that is dissolved is called ----
Answer: Solvent
Explanation:
A solution is made of two substances one is solute and the other one is solvent. The substance that get dissolved is called as solute and the liquid in which the solute is dissolved is known as solvent.
The solute and the solvent combine together to form solution. It is a homogeneous mixture in which the solute and the solvent cannot be distinguished.
Hence the correct answer is solvent.
How do land Animals prevent water loss?
Artificial levees and dams are structures used to control ___.
A. Erosion
B. Flooding
C. Groundwater
D. Deposition
Artificial levees and structures are used to control flooding.A levees is an embankment which is made to prevent flooding.The main purpose of an levees is to prevent flooding of the adjacent countryside .This embankments runs parallel to the course of river.By confining the flow of the river there is a significant increase in the velocity of water flow.Dams are constructed to hold back the water and use it as a reservoir.They hold the water prevents from flooding.
which of the following describes the location of the chromosomes during metaphase? a. located in the nucleus of the cell b. clustered at each pile of the cell c. lined up along the equator of the cell d. scattered throughout the cytoplasm of the cell
Final answer:
During metaphase, the chromosomes are lined up along the equator of the cell at the metaphase plate, which is a plane midway between the poles of the cell. The correct answer is option C, "lined up along the equator of the cell."
Explanation:
During metaphase, the location of the chromosomes is crucial for proper cell division. The correct description of their location at this stage is that they are lined up along the equator of the cell. Practically, this means they align in a plane known as the metaphase plate, which is situated midway between the two poles of the cell. Each chromosome is connected via its centromere to the microtubules that make up the spindle fibers, originating from the centrioles at each pole.
In this phase, sister chromatids remain attached to one another and the chromosomes are highly condensed, becoming maximally visible under a microscope. Visual identification is possible by looking for chromosomes that appear in a straight line across the center of the cell, signifying that the cell is in metaphase and not another phase of cell division.
Which description justifies why the theory of evolution is a theory and not a law?
A. Explains how organisms change in response to the environment
B. Predicts which organism is best suited to the environment
C. Supported by a small amount of empirical evidence
D. With more evidence it will become a law
Answer:
A. Explains how organisms change in response to the environment.
Explanation:
A scientific theory is an EXPLANATION of an aspect in the natural world. In other words, it just tells why something happens. Now it is not just a guess, it is well-supported by evidence and previous studies.
Now to knock out your other choices:
B. is wrong because:
A scientific theory does not predict. It can serve as a basis for a prediction, or what you call a hypothesis, but it does not predict an outcome.
C. is wrong because:
As mentioned earlier, a theory is WELL-SUPPORTED by evidence and previous research.
D. is wrong because:
A theory does not become a scientific law.
A. Explains how organisms change in response to the environment.
How do watersheds affect water quality ?
If a single cell dies in a multicellular organism, what happens to the organism
which of these systems is responsible fo breaking down food
endocrine system
excretory system
digestive system
lymphatic system
the group that includes human and their direct ancestors is called the
Answer:
The correct answer is hominids.
Explanation:
The group, which comprises modern humans and their direct ancestors are termed as Hominidae. It is also known as great apes or Hominids. Basically, the term Hominidae is considered for only the humans and their closest relatives. However, some of the people still continue to use this term in its limited sense, rather than in the modern sense.
Please help me with this question
A. Facilitated Diffusion
B. Active Transport
C. Simple Diffusion
D. Osmosis
does a drop of pond water contain a macrocosm
Which of these is an example of mechanical weathering?
Select one:
ice wedges creating potholes in the middle of a street
houseplants releasing oxygen into the atmosphere
waves lapping against the sandy shores of a beach
acid rain falling onto a marble statue in the town square
PLS HELP ASAP!!!!
James was exposed to a pathogen when he was 10 years old and felt ill.
What would most likely happen if he were exposed to the same pathogen when he is 12 years old?
A His body would destroy the pathogen before he felt symptoms.
B His reaction to the pathogen would be worse than the first.
C His antibodies would decrease, since he had been exposed already.
D New types of antibodies would be made in response to the second exposure.
Answer:
Answer: the answer is A Explanation:
Because bryophytes do not have vascular tissue, they do not conduct ____________.
Final answer:
Bryophytes, lacking vascular tissue, are unable to conduct water and nutrients efficiently, which keeps them small and confines them to moist environments. They use diffusion and osmosis to absorb what they need and lack true roots, stems, or leaves.
Explanation:
Because bryophytes do not have vascular tissue, they are unable to conduct water and nutrients efficiently throughout their bodies. Vascular tissue, which comprises of xylem and phloem, is the specialized system for this transport in vascular plants. Bryophytes lack these structures and hence cannot transport water and nutrients over long distances, limiting their size and habitat to moist environments where these resources are readily available.
Bryophytes include species such as mosses, liverworts, and hornworts, and they thrive in habitats ranging from tundras to deserts, although their growth is primarily dense in damp areas. Their inability to conduct water and nutrients effectively is due to the absence of lignin-reinforced cells, which are present in the vascular system of more advanced plants. Instead, they rely on diffusion and osmosis across their gametophyte surfaces to absorb moisture and nutrients.
The lack of a conductive system also means that bryophytes typically do not have true roots, stems, or leaves, and instead, possess root-like structures (rhizoids) for anchorage and absorption of water and minerals. This evolutionary trade-off has restricted bryophytes to smaller sizes and limited their competitive ability against larger vascular plants in drier environments.
Which of the following is true about rocks?
A) Rocks are composed of only one mineral.
B) Rocks do not contain any nonmineral matter.
C) Coal is not considered a true rock.
D) Most rocks are a mixture of minerals.
Answer: D). Most rocks are a mixture of minerals
Rocks are the natural substances these are the aggregate of one or more number of minerals. These minerals are responsible for chemical and physical nature of rocks. These are responsible for type of particles, texture of particles and overall rock structure. Example of rock having mineral aggregate is granite which is a combination of minerals like quartz, biotite and feldspar.
Rocks are a mixture of minerals (D).
Further Explanation:
Minerals are made up of large element, most elements are simple substances that can not breakdown into any other substance.
Most common example of minerals are Na,Si,Cl etc.
For example, SiO4 mineral contains large amount of element
Rocks are aggregates of minerals, rocks are major of three types:
Igneous Rocks Sedimentary Rocks Metamorphic RocksIgneous rocks are created when lava cools down and solidify in rock.
The metamorphic rocks are made by the subjection of igneous rocks and sedimentary rocks under high pressure and temperature.
The sedimentary rocks are created by continuous deposition of minerals, earlier rocks, and animal.
Example of igneous rocks are granite and made up of a mixture of element example SiO2 and Al2O3.
Examples of sedimentary rocks are breccias and siltstone and of metamorphic rocks are marbles.
Learn More:
Learn more about earth science: https://brainly.com/question/1553517 Learn more about layer of soil https://brainly.com/question/138504 Learn more about a mixture of mineral https://brainly.com/question/2817889
Answer Details:
Grade: High School
Subject: Biology
Chapter:Ecology
Key Words:
Soil, rock, mineral, mixture, granite, breccias, siltstone, sediments, metamorphic, igneous rocks, sedimentary rocks, silicon, deposition,earth sciences, substances, breakdown, pressure, temperature, element.
What determines the genotype of an organism?
...parent to offspring
Tremor at rest, shuffling gait, stooped posture, and expressionless face are characteristics of?