Which two of the following organisms are omnivores in this food web?
A) rotifer
B) black
C) golden algae
D) copepod
Answers
Related Questions
In the following images, a blue circle represents an atom of one type of element, and a red square represents an atom of a second type of element. Determine which of them represent a pure substance, a homogenous mixture, and a heterogeneous mixture.
Are these in the right order?
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Answer: No they are not. "Pure substance" is supposed to be placed in the middle picture. "Homogenous mixture" is supposed to be placed in the right picture. "Heterogenous mixture" is supposed to be placed in the left picture.
Explanation:
Pure Substances:
There are two categories of pure substances: elements and compounds (In our case, we have a compound).
Element (e.g. the blue circles or the red squares):
An element is a fundamental substance.An element cannot become simpler than itself, even if chemical separation methods are used.Compound (e.g. the blue circles bonded together with the red squares in the middle picture):
A compound is a substance made of two or more elements in fixed proportions (i.e. One element has the same amount as the other).A compound can be made into individual elements or simpler substances using chemical methods of separation.Mixtures:
There are two categories of mixtures: homo- and hetero- genous.
Homogenous mixture:
The substances or elements are mixed to look like one single substance and cannot be told apart (e.g. When salt dissolves in water, the water still looks like water).The substances or elements are distributed evenly throughout the apparatus. The number of different types of substances or elements can vary (e.g. There is more water than salt) The substances or elements do not bond together.Heterogenous mixture:
The substances or elements are mixed and can be told apart (e.g. When oil is mixed with water, the oil is "water-hating" so it forms its own layer on the bottom, while the water forms another layer on top of the oil layer).The substances or elements are distributed where one type of substance or element is bunched up in one spot and another substance or element in another spot.The number of different types of substances or elements can vary.The substances or elements do not bond togetherThe second Image is not a homogenous mixture, it is a heterogenous mixture as two different types of elements are mixed together.
The mix of two different types of elements in the heterogenous mixture is not uniform and has uneven mixed types.
The third image is a homogenous mixture as even though two different types of elements are together, they are not mixed with each other.
Unlike in the heterogenous mixture, in a homogenous mixture, there is a uniform mix of two different types of elements.
The first image is correct, the image depicts a pure substance.
To understand better about the Substances:
https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Foundations_of_Introductory_College_Chemistry/04%3A_Matter/3.5%3A_Pure_Substances_and_Mixtures
3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams
Answers
Answer:
c
Explanation:
While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.
Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.
However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.
Answer: C
Explanation:
The landscape could be flooded. Houses and buildings may be restricted.
The melting and boiling points of quartz are very high because of the compound’s ____________________.
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Answer:
Network Structure
Explanation:
Pleasee help me with this :)
Answers
1) Water And Wind
2) Wind Breaks
these days cloths made out of a mixture of synthetic fiber and natural fibers are more popular than those made purly out of synthetic fiber. Discuss the reason for this
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Answer: Clothes purely made of synthetic fibers are not comfortable in a hot and humid environment as they don't have the property to absorb water or sweat quickly so their water-resistant property makes them unsuitable for hot humid environment .
Explanation:
Mixing of synthetic fiber and natural fibers enhances the properties such as strength, elasticity, and ease of ironing and washing. Generally in hot environments it is preferred to wear a mixture of synthetic and natural fiber than wearing only clothes made from synthetic fiber .
Moreover, mixing synthetic fibres with natural fibres enhances their properties, such as strength, elasticity and ease of washing and ironing. Hence, these days clothes made out of a mixture of synthetic fibres and natural fibres are more popular than those made purely out of synthetic fibres.
I NEED HELP ASAP!!!
A sample of ice undergoes a physical change by being melted in a beaker. The ice cube had a mass of 30 grams. What will be the mass of the liquid water? How did you determine this?
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Answer:
it would still be 30 grams.
Explanation:
it would still be 30 grams because you are not adding any more water to the beaker and you are not taking any of the melted water away
please help bohr diagram practice
Answers
Answer:
nothing is here
Explanation:
The process of determining relative age is called ____________.
Group of answer choices
relative dating
absolute dating
exact dating
rock
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Answer:
-- I can't be too sure, but... --
Relative dating
Explanation:
Determination of the absolute age of rocks and minerals using certain radioactive isotopes.
Relative Age: The age of a rock layer compared to other layers. It can be determined by looking at the position of the rock layers.
Relative Dating: Rocks and structures are placed in order from the age of older to younger.
These two seem to be from the same section and they connect as well, so I believe "Relative Dating" is your answer but I could be wrong nevertheless I hope this helps you!
A substance is _____. This means it can be pulled or drawn into a wire.
A. malleable
B. ductile
C. conductive
D. corrosive
Answers
Answer:
B. ductile
Explanation:
your welcome
Answer:
Ductile
Explanation:
A. Malleable - (of a metal or other material) able to be hammered or pressed permanently out of shape without breaking or cracking.
B. (of a metal) able to be drawn out into a thin wire.
C. having the property of conducting something (especially heat or electricity).
D. tending to cause corrosion.
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
The mass of Betelgeuse is about ___ times the mass of Vega
(This is not multiple choice.)
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Therefore, the mass of Betelgeuse is about 17.634 kg/ 9.5 times the mass of Vega.
Vega is a main-sequence star located in the constellation Lyra. Betelgeuse is a red supergiant star located in the constellation Orion. The mass of Betelgeuse is observed to be about 20 times the mass of the Sun, while the mass of Vega is estimated to be about 2.1 times the mass of the Sun. Therefore, the mass of Betelgeuse is theoretically estimated to be around 9.5 times the mass of Vega.
Experimentally,
The mass of Betelgeuse is 2.188 x10^31 kg
The mass of Vega is 4.246 x 10^30 kg
Hence, the mass of Betelgeuse is about 17.634 kg/ 9.5 times the mass of Vega.
To learn more about Betelgeuse and Vega,
https://brainly.in/question/31136305
Water is one of the most important things to you, and to all living things. The fact that you can measure the volume of room temperature water with a beaker is a clue that room temperature water is in liquid form. If you keep raising the temperature of that water, it will eventually begin to boil, bubbling up and releasing steam. The steam is an example of what? *
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Answer:
steam is and example of vapor and gas.
Answer:
evaporation
Explanation:
because the water boils and steam leave so it's evaporation
Research on measures taken to reduce the impact of thermal and nuclear electricity.
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A high concentration of hydrogen ions (H+) means a solution is what? (example: HCl aka Hydrochloric Acid)
A) very basic
B) neutral
C) neither acidic or basic
D) very acidic
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Answer:
Explanation: it would be D because hydrogen is very acidic and don't worry i'll always be here to help
Please Help will mark brainliest
1._____ rocks contain a variety of different rock particles that are cemented together.
2._____ rocks are formed when rocks are changed by heat and pressure.
3. When volcanoes erupt,_____ rocks are typically formed.
Answer choices
1. igneous, sedimentary, metamorphic
2. igneous, sedimentary, metamorphic
3. igneous, sedimentary, metamorphic
Answers
1. sedimentary
2. metamorphic
3. igneous
hope this helps and have a wonderful day :)
Answer:
igneous
Explanation:
How might the digestive system and the circulatory system need to work together?
Answers
In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.
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Answer:
No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.
PLEASE ANSWER QUICKLY!!!!! Which of the following is NOT a function of your integumentary system?
A) Protecting against infection
B) Synthesizing vitamin D
C) Maintaining Fluid Balance
D) Stabilizing blood pressure
Answers
Answer: Must be a trick question.
Explanation: All of these are a function of the integumentary system.
Hope this helps <3
What might happen if there is excessive water removal from the Central Valley Aquifer in California?(1 point) Responses
A. It can cause severe weather changes in California.
B. It can cause severe weather changes in California.
C. It can transform California completely to a desert.
D. It can transform California completely to a desert.
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Answer:
A
Explanation:
California is surrounded by the sea so it would never run out.
how can you determine if the information you are reading is based on science or not?
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What is the series of energy transfers shown in the picture below?
A) chemical to mechanical to electrical to thermal
B) mechanical to chemical to thermal to electrical
C) electrical to thermal to mechanical to chemical
D) thermal to mechanical to electrical to chemical
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Answer:
The correct answer is A.
pls help me i am going to fail my class if u dont help btw this is sice
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cause: industrial wasted dumped j to rivers, spread of disease, sewage dumped into rivers
effect: fish die-off, oil spilled on land mixes with runoff, destroyed natural habitats.
note: I can't drag the item. :)
Answer:
:Zzz:
Explanation:
Cause:
Industrial wastes dumped into rivers.
sewage dumped into rivers
oil spilled on land mixes with runoff
Effect:
fish die off
spread of disease
destroyed natural habitats
PLZZZZZZZ HELPPPPPPPPPPP:))))
Answers
C
Explanation:
Smooth muscles are in the digestive system, skeletal muscles are the ones we voluntarily move, and cardiac muscles are for the heart.
if i have 17 apples and i eat 17 apples how many pears do i have?
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Answer:
If you eat all 17 apples, you will not have any apples left. However, the number of pears you have is not related to the number of apples you ate. So, the number of pears you have is unknown and not affected by the number of apples you ate.
(1.) If at 100.0 mL solution contains 0.850 moles of a solute, what is the molarity ?
(2.) If the molarity of a solution is 12 M and the volume of the solution is 1.0 L, how many moles of solute does the solution contain ?
Answers
Answer:
See below
Explanation:
1) Moles / volume
.85 mole / .1 liter = 8.5 M
2) 12 moles are contained in one liter
.85 mole / .1 liter = 8.5 M
2) 12 moles are contained in one liter
WHOEVER ANSWERS FIRST WILL GET BRAINLIST
Answers
Answer:
A!
Explanation:
Answer:
A
Explanation:
What is similar about how floodplains and alluvial fans form? What is different?
Answers
an alluvial fan is formed as a stream begins to cut into its floodplain. a delta forms in mountainous areas, alluvial fans on flat land. a delta forms while entering water, an alluvial fan forms on dry land.
Do you think rayon when burnt will stick to the body like other synthetic fibers?
Answers
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
How to know how many electrons are involved in bonding of propane ?
Answers
In the bonding of propane (\(C_{3}H_{8}\)), there are 18 electrons involved.
You must count the electrons in propane's bonding using its Lewis structure. Propane (\(C_{3}H_{8}\)) has three carbon and eight hydrogen atoms.
How to calculate bonding electrons:
Count the molecule's valence electrons.
Three carbon atoms supply 12 valence electrons since carbon possesses four.
Eight hydrogen atoms contribute 8 valence electrons.
20 valence electrons: 12 (carbon) + 8 (hydrogen).
Single-bond atoms to form the molecule's skeleton.
Propane's skeleton is H-C-C-C-H.
To complete atom octets, distribute leftover electrons.
Start by bonding each carbon atom to the surrounding hydrogen atom with two electrons.
Distribute the remaining electrons to satisfy the carbon and hydrogen octet rule.
Count bonding electrons.
Each bond has two electrons—one from each bonding atom. Propane has nine C-H bonds, therefore bonding electrons total: 18 electrons from 9 C-H bonds.
Learn more about bonding, here:
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