Answer:
photosynthesis (autotrophs are mainly plants )
1. The first living organism in a food chain is
a) producers
b) primary consumers
c) heterotroph
d) chemosynthesizer
2. The second living organism in a food chain is generally...
a) herbivore
b) carnivore
c) detrivore
d) a photoautotroph
3. Plants use nitrogen to grow and are generally helped by cycling N from the air to the land by bacteria in a process called...
a) nitrogen fixation
b) denitrification
c) decomposition
d) emmigration
Answer:
1-a 2-a 3-a
1. The first living organism in a food chain is
a) producers
b) primary consumers
c) heterotroph
d) chemosynthesizer
2. The second living organism in a food chain is generally...
a) herbivore
b) carnivore
c) detrivore
d) a photoautotroph
3. Plants use nitrogen to grow and are generally helped by cycling N from the air to the land by bacteria in a process called...
a) nitrogen fixation
b) denitrification
c) decomposition
d) emmigration
Where does competition for reproduction most likely occur?
ecosystem
community
organism
population
Your answer is D .It's population because a community is the number of species able to reproduce in an area
PLEASE MARK ME AS BRAINLIEST
Rectangle JKML is rotated clockwise around point P. What is the angle of rotation? 45° 90° 180° 360°
Answer:
the awnser is a:45 degree
Explanation:
Answer: a= 45
Explanation:
Hope this helped
what are the cause of forest fires only one
Answer:
Humans :(
Explanation:
One of the largest causes of forest fires are humans. Either by neglecting campfires, throwing cigarette butts, or arson. Or gender reveal parties lol.
What best describes the relationship between microbes and humans
Answer:
I'd say C.
Explanation:
The term "phase" only refers to a state of matter in science (True or False)
True
False
does anyone know what this is ??
What are the functions of the nucleolus? (Choose all that apply)
converting energy from food into a form the cell can use
regulating the cell’s interaction with its surroundings
translating the code contained by the DNA into the proteins the cell needs for structure and function
Answer:
El nucleolo
Explanation:
El nucleolo es una región del núcleo celular que se ocupa de la producción y ensamblaje de los ribosomas de las células. Tras el montaje, los ribosomas son transportados al citoplasma de la célula donde sirven como centros de síntesis de las proteínas.
Suppose a scientist developed a hypothesis stating that a certain substance slowed down the growth of chili pepper plants. Briefly describe a controlled experiment
the scientist could conduct to test the hypothesis. Identify the controlled variables, the independent variable(s), and the dependent variable(s).
Answer:
The experiment consists of three different treatments:
1- Fifty (50) chili pepper plants treated with the substance X suspected to slow down the growth
2- Fifty (50) no treated chili pepper plants that grown in normal conditions
3- Fifty (50) chili pepper plants treated with a substance known to slow down the growth (positive control)
Dependent variable: plant growth
Independent variable: the amount of substance x (suspected to slow down plant growth)
Explanation:
The dependent variable is the variable that is being measured, while the independent variable isn't changed by the other variables in the experiment. In this case, the question is how chili pepper plants grow in response to the substance x, which is suspected to slow down the plant growth. During the experimentation, the plant growth will represent the dependent variable being analyzed. On the other hand, chili pepper growth will be in response to changes in the amount of substance x the plants receive, therefore being the independent variable.
Hypothesis development for substance.
A hypothesis is a temporary or tentative arrangement or explanation that is made for the experiment on the basis of an assumption. The experiments highlight the development of certain substances that slowed down to the growth of the chili pepper plans.
Thus the answer is slow growth, normal growth, and positive fast growth.
The assumed experiment consists of 3 treatments. As the first (50) chili pepper plants treated with substance X tend to slow down the growth. The second plant shows a grown in normal conditions. The 3rd plant sows the slow down the growth (positive control).Thus the dependent variable is then planted growth and the independent variable is substance X.Learn more about the scientist's development.
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Examine the illustration.
Which structure in the cell contains the cell's genetic
information?
A
B
C
D
Answer:
b
Explanation:
b is the nucleus and it contains the dna
Answer:
B
Explanation: I took the test
whats the difference between acid , bases and buffers?
Please select me as brainiest. It would make my day.
Answer:
A basic solution will have a pH above 7.0, while an acidic solution will have a pH below 7.0. Buffers are solutions that contain a weak acid and its a conjugate base; as such, they can absorb excess H+ions or OH– ions, thereby maintaining an overall steady pH in the solution.
How is burning a piece of wood a chemical change, while boiling water is not? I don’t get it....well i do but i need a answer.:/
Answer:
A burning piece of wood is a chemical change, because you alter it, and it turns to ashes, and it is irreversible, where as you can make water cold again
Answer:
youre creating a new substance in a chemical reaction
Explanation:
by boiling water, you arent making anything new. you're just changing the form of the water.
by burning wood, you're inducing a chemical reaction because some new substance is being made with the reactants
i need help pls question is below
Answer:
Hey mate......
Explanation:
This is ur answer.....
B. 8 Kilograms
hope it helps,
mark me as the brainliest.....
Follow me.......xd
The digestive system's main function is to
O protect the body against infectious diseases
O support and protect the body's organs.
O store nutrients until they are absorbed into the bones O break down food to be absorbed in the bloodstream.
How are meiosis and mitosis different?
Answer:C
Explanation:Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Which homeostatic process moves particles against a concentration gradient?
dynamic equilibrium
passive transport
osmosis
active transport
Answer:
Active Transport
Explanation:
Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration.
Whoever is reading this is really luck because i know all the answers to this quiz, the answers are:
B- osmosis
B- 12
D- active transport
B- during a negative feedback loop
C- 1000x
C- nucleic acids.
A, B, C, D, F, G- in saliva , in mucus , on a door handle , on a water fountain
C- Which cereal contains the most sugar?
C, D, E- Spindle fibers disappear, Nuclear membranes form, Cytoplasm starts to divide.
B- urine
C- cnidarians, mollusks, annelids, arthropods, echinoderms, chordates
A- The contractions would increase.
A- Interphase
B- the cell membrane
C- Its sex cells are haploid and a result of meiosis.
A- mitochondria
A- scanning electron microscope and scanning tunneling microscope.
B- velocity
A- a reflex
C- sublimation and melting
D- B-cells and T-cells
D- scanning tunneling microscope
C- pseudoscience
D- Leonna has a solid, Xiao has a liquid, Blake made a mistake, and Amir has a gas.
C- X: mostly unicellular, nucleus, make or consume food
Y: mostly multicellular, nucleus, eat dead or decaying organisms
Sorry to everyone who didn't get 100% with all of these answers- these are the answers to the Cumulative Exam Review on edge! -Cvest
summarize the three general steps involved in chemical
cycling:
Answer:
Explanation:
Chemical cycles typically involve three general steps: ... As organisms die, decomposers break them down, further supplying the soil, water, and air with chemicals in inorganic form. The producers gain a renewed supply of raw materials for building organic matter, and the cycles continue.
help............ty.......
What do scientists do when experiments are not possible
Answer:
Well, to be honest I think that they might just figure out another way to do that experiment.
Explanation: My reasoning is, that if an experiment isn't possible due to complications like maybe it could be to dangours or it could have reaction that they don't know about. So if they aren't able to do an experiment then they might find a safer one to do or they might just skip it and research more about it and see how it would react to certan things.
Why are most stray cats short hair cats, but a variety of colors?
According to the American Humane Society, roughly 95% of all cats are short hair cats (called domestic shorthair). This applies not just to strays but cats that have owners as well. So that fact alone is enough to be able to see why most strays are short hair cats.
Through my research, I'm reading that some people claim that long hair cats are more expensive and rare cats, so the owner is likely to take better care of them and keep them indoors. This further inflates the percentage of stray short hair cats out on the street. I couldn't find much about this from an official source, but instead just through forum posts.
As for the colors, I'm not entirely sure. The cat's fur color comes from its genetics. So it's possible that darker more earth-tone colors help the animal survive better compared to say a lighter color or white fur. Due to natural selection and survival of the fittest, the darker hair color cats will eventually out-number the lighter fur colors. That's my theory anyway. I couldn't find much data or studies to back that up.
Which is NOT a simple invertebrate? im giving brainliest
jellyfish
sponge
roundworm
snails
Answer:
snails the answer is D
Explanation:
mark me as brainliest please
Use subsoil in a sentence.
Answer:
The soil is loam and the subsoil Old Red Sandstone, interstratified with cornstone at Pippin's Hill in the north. Copy
Many soils have a topsoil layer that is more permeable than the clay subsoil. Copy
It also includes the air and water space above, and the subsoil and bedrock below that.
Explanation:
the half life of carbon-14 is 5730 years. a corpse is pulled from a bog and tested for C-14 beta radiation. the amount of radiation is 75% of the normal amount coming from living things. how long has the corpse been in the bog?
Answer:
%67
Explanation:
what happens to a enzyme after it has completed a reaction?
Answer: The enzyme will always return to its original state at the completion of the reaction. One of the important properties of enzymes is that they remain ultimately unchanged by the reactions they catalyze. After an enzyme is done catalyzing a reaction, it releases its products (substrates).
Enzymes are not consumed in the reaction, they can continue catalyzing more reactions, they can remain bound to the product or they can be degraded.
What are enzymes?Enzymes are biomolecules that catalyze chemical reactions in living organisms. They are typically proteins, although RNA molecules known as ribozymes also exist. Enzymes are responsible for many of the metabolic processes that occur in cells and are essential for life. They are highly specific, meaning that they typically only catalyze one or a few specific reactions, and they increase the rate of reactions by reducing the activation energy required for the reaction to occur.
After an enzyme has completed a reaction, it is still present and can continue to catalyze more reactions. Enzymes can catalyze thousands of reactions per second, and they can remain active for long periods of time. However, enzymes can also be inactivated or destroyed by various factors, such as high temperatures, changes in pH, or the presence of certain chemicals
Learn more about enzymes, here:
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10.
Both lipids and carbohydrates can be used by the cell as -
A. O replacements for salts.
В.
catalysts for metabolic reactions.
c. building blocks for RNA.
D
sources of energy.
D both can be used as sources of energy
The similarity between lipids and carbohydrates is that both are classes of chemical compounds that are found in living things. Thus, option D is correct.
What are the use of lipid and carbohydrate?Two of the four significant biomolecules include lipids and carbohydrates. They are both sources of energy.
However, although lipids store energy for later use and release it more slowly, carbs are available as instant energy sources. Thus, this is the primary distinction between lipids and carbs.
More energy is stored in lipids than in an equivalent mass of carbs. To release their energy, however, carbohydrates are easier to digest than lipids.
This indicates that they are made up of many carbon atoms with bonds to oxygen and hydrogen.
Therefore, Both lipids and carbohydrates can be used by the cell as sources of energy.
Learn more about lipid and carbohydrate here:
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please help (5 Stars no cap)2
Answer:
H. Nucleus
Explanation:
A nucleus is found in the cell and is responsible for heredity and cellular control.
Hope I helped.
1. clumped population dispersal ___ resources
a) share
b) compete
c) are independent of
d) disperse
2. The level in which a population can no longer grow due to limited resources is referred to as,
a) K, carrying capacity
b) L, limited growth rate
c) D, death rate
d) N, no more nutrients
3.Most life on Earth exhibits which form of population growth curve?
a) logistic
b) exponential
c) algebraic
d) deductive
Answer:
compete
limited growth rate
logistic
Explanation:
Which crop needs waterlogging in the field for improved growth and production?
Answer:
Rice
Explanation:
Which correctly lists three greenhouse gases?
oxygen, carbon dioxide, helium
carbon dioxide, nitrous oxide, methane
helium, methane, oxygen
methane, oxygen, carbon dioxide
Answer:
carbon, dioxide, nitrogen oxide, methane
Explanation:
fz f..
The correct list of greenhouse gases is: carbon dioxide, nitrous oxide, methane.
GREENHOUSE GASES:Greenhouse gases are gases capable of trapping heat in their bonds and releasing it into the atmosphere.
Greenhouse gases are the major cause of global warming, which is the increase in the average temperature of the atmosphere.
Greenhouse gases include the following: carbon dioxide (CO2), methane (CH4), nitrous oxide (NO2), sulfur dioxide (SO2) etc.
Learn more about greenhouse gases at: https://brainly.com/question/11595872
How is the current trend of climate change different from previous cycles?
A. The temperatures are dropping more quickly.
B. The temperatures are changing more slowly.
C. The temperatures are much higher.
D. The temperatures are not changing as much
Here you go :)
The speed of the current climate change is faster than most of the past events, making it more difficult for human societies and the natural world to adapt. Climate change = more heat
So, the answer is C
________
Answered by James