Answer:
Explanation:
The definition of humus is partially decomposed organic matter. Partially decomposed plant matter in the soil is an example of humus. A dark-brown or black organic substance made up of decayed plant or animal matter. Humus provides nutrients for plants and increases the ability of soil to retain water.
Answer:
Some examples of hummus are the store-bought, home made, or the real deal from the middle east.
Sorry, wrong type of hummus.
Which crop needs waterlogging in the field for improved growth and production?
Answer:
Rice
Explanation:
When do enzymes stop reacting to the substrates?
Answer:
If the reaction is divalent metal ion-dependent, you can stop the reaction by adding an excess of EDTA to bind the metal.
You can kill the protein by adding perchloric acid, then precipitate the perchlorate with an equivalent amount of potassium carbonate, leaving nothing but carbonic acid in the supernatant, which bubbles off as carbon dioxide. Centrifuge the sample and take the supernatant to analyze for the product.
A rather slow method is ultrafiltration, using a micro-centrifugal ultrafilter (e.g. Microcon) with a molecular weigh cutoff smaller than the molecular weight of the enzyme. This can be done at 4oC to slow down the reaction during the separation.
Explanation:
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
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:
does anyone know what this is ??
PLEASE HELP ASAP! Thank you. What causes variety in an offspring's genes that have the same parents during the cell cycle process?
Metaphase
Anaphase
Crossing over
DNA duplication
Answer:
DNA dublication can cause vatiety
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.
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.
which of the following is the most common method of photosynthesis?
A: C3
B: CAM
C: rubisco
D: C4
Answer:
B: CAM
Explanation:
Answer:
C3
-C3 was the original
C4 and CAM have been discovered recently and are only seen in a few types of plants.
All cells have a cell wall but only plant cells have a cell membrane
A) true
B) false
C) neither true or false
Answer: false
Explanation: Only plant cells have a cell wall. All feels have a cell membrane
All cells have a cell wall but only plant cells have a cell membrane. The given statement is false.
What is difference between unicellular and multicellular organisms?
The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialised it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.
Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.
In unicellular organism division of labour is at the organ level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.
Unicellular organism has simple body organization and multicellular organism have complex body organism.
Therefore, all cells have a cell wall but only plant cells have a cell membrane. The given statement is false.
Learn more about unicellular and multicellular here:
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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.
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.
brainly.com/question/18560497
Is Protein a short term energy source or a long
term energy source?
Answer:
short term
Explanation:
Short-term response energy storage devices are usually applied to improve power quality, particularly to maintain the voltage stability in power systems, throughout a contribution during transients (few seconds or minutes) [4].
My category includes genetic material.
Which of the following is not a Polymer? *
a) protein
b) starch
c) nucleotide
d) lipid
e) DNA
Identify the organelles in the cell to the right
Answer: A-Vacoule
B-Chloroplast
C-cell membrane
D-Golgi apparatus
E-Endoplasmic reticulum
F-Cell wall
Explanation:
Answer:
dentify the organelles in the cell to the right.
A
✔ vacuole
B
✔ chloroplast
C
✔ cell membrane
D
✔ Golgi apparatus
E
✔ endoplasmic reticulum
F
✔ cell wall
The organelles in a plant cell are labeled. Part A is a large hollow structure at the center of the cell. Part B is a leaf-shaped structure. Part C is the lining of the cell. Part D is made up of stacked circles. Part E is a network of membranous tubules. Part F is the outside of the cell.
Explanation:
A desert is very hot during the day and receives very little rain. Which
plants have an adaptation that would help them survive?*
Answer: Well cacti for one
Explanation:
They can store water for a really long time because of the little rain.
Succulent plants have an adaptation that would help them survive in the desert.
Succulent plantsCactus is an example of succulent plants that are adapted to survive in the hot and humid conditions of the desert. To survive in the desert, cactus has the following adaptations:
A modified flat green stem - helps in preparing food by photosynthesis and conserves water.The stem is covered with a thick waxy layer - helps to retain water.Leaves are present in the form of spines - prevent water loss through transpiration.Long roots -very deep into the soil for absorbing water.Learn more about succulent plants:
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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 determines the vast majority of characteristics in an atom?
Answer:
The vast majority of an atom's properties are determined by the number of electrons (or protons) that an atom has
Explanation:
The epidermis is a muscle
True
Or
False
Answer:
false
Explanation:
because derm=skin and skin is not muscle skin is a type of tissue
hope this helped :)
Changes in the periodic table from 1800's to the present are based on all BUT ONE of these factors.
A)
peer review
B)
empirical data
C)
fact verification
D)
journal publication
Answer:
Journal Publication
Explanation:
Once empirical data has been verified, reviewed, only then can it be published in a scientific journal. As the periodic table was developed and reconfigured, data was constantly tested, reviewed, and finally used for modifications.
Changes in the periodic table from 1800's to the present are based on all but one of these factors is Journal Publication.
What is Journal publication?
Once empirical data has been verified, reviewed, only then can it be published in a scientific journal. As the periodic table was developed and reconfigured, data was constantly tested, reviewed, and finally used for modifications.
A scholarly publication is another term that may be used to describe a peer-reviewed article.
In order to maintain academic scientific excellence, the peer-review process involves having other specialists in the same field (peers) examine an author's scholarly work, study, or ideas.
Therefore, Changes in the periodic table from 1800's to the present are based on all but one of these factors is Journal Publication.
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2. Which two biomes are known asthe dry biomes?
tundra and forest
desert and tundra
desert and grassland
Answer:
The desert and tundra biomes have very different temperatures as well as extremely different plants and animals. The desert can get very hot during the day, but cool off quickly at night. It has sandy soil and supports very little plant life. Animals found in the desert include lizards, javelinas, Gila monsters, coyotes, bobcats, scorpions, and kangaroo rats. The tundra is cold, dry, and often dark. The average temperature is about 10°F. The soil below the surface is permanently frozen, and is called permafrost. A few types of plants grow during the short summer season. Animals found in the tundra include caribou, foxes, wolves, and Arctic hares.
Explanation:
7)
Lenny accidentally drops his matchbox car into a graduated cylinder. The car has a mass of 10 grams and the water level in the cylinder rises from 41 ml to 46 ml. Determine the density of the matchbox car. The formula for density is D =
m
v
.
A) 0.5 g/ml
B) 2 g/ml
C) 15 g/ml
D) 50 g/ml
Answer:
B) = 2 g/mL
Explanation:
Given data:
Mass of car = 10 g
Volume of water = 41 mL
Volume of water+ car = 46 mL
Density of car = ?
Solution:
Density is equal to the mass of object divided by volume of object.
Formula:
d = m/v
volume of car = Volume of water+ car - Volume of water
volume of car = 46 mL - 41 mL
volume of car = 5 mL
d = 10 g/ 5 mL
d = 2 g/mL
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
Help???????? PLZZZZ!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
THE ANSWER ISSSSSSSSS HOST
Explanation:
If a hurricane was to hit Jacksonville during which Moon phase would
we most likely experience the most damage? Describe the factors that
are involved in order to develop an answer.
Answer:
I think so
Explanation:
waxing crescent
Can you please help me
Answer:
Rights: bedbug removal, purchase agreement
Responsibilities: major repairs, rental walkthrough
Each phospholipid is has a head that gives it a _____________ property that allows it to be attracted to water.
a. polar
b. non polar
Answer: Polar
Explanation:
Wind farms are clusters of wind turbines used to produce electricity. Often wind farms sell the electricity they produce to utility companies. New technologies have recently decreased the cost of producing electricity from wind. Which is a potential benefit of making this source of energy more affordable?
Answer:
explanation below
Explanation:
When wind energy becomes quite available at an affordable rate, it offers many advantages which continues to explain why it has remain one of the fastest growing energy sources in the world.
Wind energy is clean and does not pollute the environment unlike what is gotten from the use of fossil fuels.
Individuals can rightly use this energy source to power their homes at different times .
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