I also need help on it
If a disease caused the death of 50 percent of the individuals in the 25-40 year old age range, this would have minimal effect on the individuals in younger and older age ranges.
True
False
Answer:
The answer is actually false i took this lesson on oddseyware already :)
Explanation:
What is one role that lipids play in the body?
They store coded information about heredity.
They make up the contracting structures of muscles.
They make up structural parts of cell membranes.
They provide a quick source of energy for cells.
Answer:
UMMMMMMM
Explanation:
HELP ASAP!!!
The lens in the eyepiece of a reflecting telescope breaks. How will this most affect the function of the telescope?
Answer:
A: Magnified images will appear upside down
Explanation:
Edge 2020
List the two stages in the process of photosynthesis.
Answer:
Plants take carbon dioxide in and release oxygen
Explanation:
Answer:
They are:
The light-dependent reactionsThe light-independent reactions, or Calvin CycleHope this helps ; )
This has a lot of points and I am m giving out brainliest to anyone !! Please help me guys!
Answer:
C
Explanation:
Chloroplasts are necessary for plant cells to get energy. Plants are autotrophs, which means that they need to make food/energy by themselves to survive, and plants do so using a process called photosynthesis that chloroplasts aid in. Both plant and animal cells have a nucleus, cell membrane, and mitochondria, but only plant cells have chloroplasts. Therefore C.
what determines whether an atom will form a bond with another atom
Answer:
The amount of valence electrons
Which is the property of nonmetals to evaporate easily?
brittle
dense
liquid
volatile
Volatile is the property of nonmetals to evaporate easily. The correct option is D.
What is being volatile means?The ease with which a material vaporizes is described by its volatility. A volatile material is defined as
A compound that readily evaporates at normal temperatures.One with a measurable vapor pressure. Basically, the term volatile refers to liquids.Volatility is a substance quality in chemistry that characterizes how easily a material vaporizes.
An active ingredient with high volatility is more likely to exist as a vapor at a given temperature and pressure, whereas a substance with low volatility is more likely to exist as a liquid or solid.
The enthalpy of vaporization describes the temperature dependence of the vapor pressure, while vapor pressure is the physical property that conveys a compound's volatility at a given temperature.
Thus, the correct option is D.
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Unhealthy ecosystems are created by
Answer:
Removal of plants, and invasive species.
Explanation:
Nitrogen is a component of
Explanation:
Nitrogen is a component of amino acids and urea.
Hope this helps
Answer: Amino acids and urea
Explanation: Amino acids are the building blocks of all proteins.
this is responsible for providing shape to the cell
Match the transposition pathway with its correct description. Answers may be used more than once or not at all.
1. Retrotransposon pathway
2. Direct cut pathway
3. Cut and paste pathway
4. Replicative pathway
Transcription pathway
A. Involves removing a segment of DNA and placing it in a new location; the number of TE is not increased.
B. Involves the copying of DNA.
C. Involves the translation of proteins.
D. N/A E. Involves an RNA intermediate and the reverse transcriptase enzyme
Answer:
1. Retrotransposon pathway: E. Involves an RNA intermediate and the reverse transcriptase enzyme
3. Cut and paste pathway: A. Involves removing a segment of DNA and placing it in a new location; the number of TE is not increased.
5. Transcription pathway: B. Involves the copying of DNA.
4. Replicative pathway: C. Involves the translation of proteins.
2. Direct cut pathway: D. N/A
Explanation:
Class I transposable elements (also known as retrotransposons) are genetic mobile elements that copy and paste into other loci by reverse transcription and integration of the cDNA into new genomic regions
Class II transposable elements (also known as DNA transposons), can move by two different mechanisms of transposition:: 1-cut-and-paste pathway: the DNA transposon leaves one locus and integrates into another genomic site. and 2-replicative pathway: the DNA transposon remains in one locus while new copies of its sequence are mobile. The replicative pathway requires a transposase enzyme that acts as a catalyst of transposition.
What a the difference between microfilaments and microtubules?
Answer:
The main difference between microtubules and microfilaments is that microtubules are long, hollow cylinders, made up of tubulin protein units whereas microfilaments are double-stranded helical polymers, made up of actin proteins.
Describe how waves behave when they interact with a barrier or boundary.
Answer:
Reflection involves a change in direction of waves when they bounce off a barrier; refraction of waves involves a change in the direction of waves as they pass from one medium to another; and diffraction involves a change in direction of waves as they pass through an opening or around a barrier in their path.
What do a bacteria an a elephant have in common
Answer:
similar metabolism
Explanation:
Why are decomposers essential to a balanced ecosystem?
Answer:
Decomposers are like the housekeepers of an ecosystem. Without them, dead plants and animals would keep piling up with the nutrients the soil needs trapped inside. Decomposers clean up the dead material by processing it and returning the nutrients to the soil for the producers.
2. Describe one way your body responds to a hot environment, and explain how this response helps to keep your body temperature from rising too high
A biologist is studying a population of zebras that seems to be suffering from a disease that debilitates their bones. He
collects a sample of bones from the carcass of a deceased animal. He finds that the bones have a mass of 7.15
grams and occupy a volume of 5.5 cubic centimeters. What is the density of the bones?
O 1.0 g/cm
O 1.3 g/cm
O 1.8 g/cm
O2.0 g/cm
Answer:
1.3 g/cm
Explanation:
ok so to get this answer what you need to do is look at the cubic centimeters and contrast it with the grams
Answer:
b) 1.3 g/cm3^
Explanation:
Matthew records the temperature outside for one day. From 10:00 a.m. to 12:00 p.m., the temperature rises 4°C. From 12:00 p.m. to 2:00 p.m., it rises another 3°C. From 2:00 p.m. to 4:00 p.m., it drops 2°C. Which of the following predictions about how the temperature will change between 4:00 p.m. and 6:00 p.m. is most reasonable?
Group of answer choices:
The temperature will drop 14°C.
The temperature will stay the same
The temperature will rise 3°C.
The temperature will drop 4°C.
Answer:
the tempature will drop 4 degrees c
Explanation:
Match the part of the wave to the diagram.
Amplitude / Energy
Trough
Crest
Wavelength
A⇢Amplitude
It refers to the maximum displacement of a particle from it's resting positionB⇢Wavelength
The distance from one crest/trough to another crest/troughC⇢Crest
It's the a.pex of the waveD⇢Trough
It's the lowest surface part of a wavewhich part of the atom always has the same number?
Answer:
electrons as protons
Explanation:
Which of the following is a balanced equation.
Helpp
What are two ways that you could change the path of light? what materials would you need to do it?
What did you know about Nerves? Explain the types of Nerves.
PLEASE HELP. I WILL GIVE YOU BRAINLIEST!
Which terms correctly identify the indicated structures in this sketch of a cell viewed under a microscope?
Drag and drop a term to match each label.
Answer:
A: The right answer is Vacuole
Vacuoles are organelles present in plant cells. It is a large single structure, of variable shape according to the cells, delimited by a lipid membrane called tonoplast.
The vacuoles allow the storage of water, ions, sugars, ... and by magnifying, play an important role in the growth of the plant.
B: The right answer is Mitochondria
Mitochondria are organelles present in eukaryoptic cells. The mitochondrion is composed of a double membrane, the inner membrane being folded into mitochondrial ridges.
Mitochondria are the organelles that produce the energy of the cell. The mitochondria thus have a role of power station for the cell. They are the ones who perform cellular respiration.
C: The right answer is Cell membrane (the inside layer)
All cells (prokaryotic and eukaryotic) are separated from their environment by a palsmic membrane.
The plasma membrane is the line of demarcation between the cell and its environment (= envelope of the cell).
It determines what goes into the cell and what comes out of it. Like all biological membranes, the plasma membrane has a selective permeability, that is to say it is allowed to pass through certain substances more easily than others.
The plasma membrane consists of a double lipid layer in which proteins are inserted.
D: The right answer is Chloroplast
Chloroplasts are important organelles specific to plant cells. Chloroplasts appear green ... They contain chlorophyll, a pigment that captures solar energy.
Choroplasts perform photosynthesis, that is, they absorb sunlight and use it for the manufacture (synthesis) of organic compounds from carbon dioxide and water.
E: The right answer is Lysosome
The lysosome is a small spherical structure (a vesicle) delimited by a lipid membrane located in the cytoplasm of eukaryotic cells. The membrane contains ion channels (proton pumps) that allow the active entry of H + ions, in order to maintain an acid pH (between 3.5 and 5) within the lysosomal vesicle.
Lysosomes are organelles of eukaryotic cells that contain a mixture of digestive enzymes used to degrade macromolecules.
Lysosomes are considered the "stomach" of the cell.
F: The right answer is Endoplasmic reticulum
The endoplasmic reticulum are organelles of eukaryotes that extend throughout the cytoplasm (like a labyrinth). These are organelles that produce proteins and play a vital role in the development of the other membranes of the cell.
Explanation:
Dont forget my brainliest
Describe what happens when an enzyme is placed in
environments that have different pH levels or
temperatures than its regular environment.
Answer:
If your just looking for the "why" then this is what i do know about it.
Explanation:
Changes in pH cause amino acids' component atoms and molecules to ionize. This can make an enzyme change shape. These shapes determine function, so changing the shape can impair the enzyme's function, preventing it from speeding up chemical reactions.
Higher temperatures disrupt the shape of the active site, which will reduce its activity, or prevent it from working. The enzyme will have been denatured . Enzymes therefore work best at a particular temperature.
Hope this helps.
Which greenhouse gas is produced by commercial refrigeration and air conditioning systems?
A. Carbon Dioxide
B. Fluorinated Gas
C. Nitrous Oxide
D. Methane
Answer:
B. Fluorinated Gas
ok
Air conditioners and fridges involves greenhouse gases which are hydrofluorocarbons. In commercial refrigeration and air conditioning systems carbon dioxide gases is produced.
What is greenhouse gas?Greenhouse gases trap heat in atmosphere and warm the Earth.
The main gases involved are carbon dioxide, methane, nitrous oxide, water vapors etc. It also involves flourinated gases.
Carbon dioxide is primary greenhouse gas, which is emitted by human activities.
Thus, option A is correct.
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how important are the equipment in dressmaking?
Answer:
very importent
Explanation:
Consider the denaturation equilibrium between native Ribonuclease A and unfolded protein. Ribonuclease A is a 124 amino acid protein with four disulfide bridges. To test the importance of one of the disulfide bridges in protein stability, residues Cys58 and Cys110 were mutated into Ala. The protein denaturation parameters for Ribonuclease A wild-type and mutant are shown below. All values are in kJ/mol.
wt: ΔH: 297.2
TΔS: 254.6
ΔG: 42.4
mutant: ΔH: 184
TΔS: 183.2
ΔG: 0.8
Mark the following statement as True or False: Denaturation is spontaneous for both enzymes.
A. True
B. False
Answer:
False
Explanation:
We know from thermodynamics that;
When ∆G is positive the process is not spontaneous
When ∆G is negative the process is spontaneous
When ∆G is zero, the system has attained equilibrium.
In both cases, ∆G is positive hence the denaturation of both enzymes is not spontaneous, hence the answer above.
3. Plants have properties that make them practical source of foods. Which
property make them good source of foods?
A, resistance
B, mechanical C. chemical
D. physical
Answer:
C
Explanation:
The property of plants that makes them a good source of food is the chemical property.
Plant lock-up energy in them in the form of carbohydrate which is derived from the process of photosynthesis. The energy from the sun is converted into chemical energy and when plant-consuming organisms feed on them, the chemical is broken down and the energy is released for the metabolic activities of the body.
These two processes can be expressed as equations:
1. [tex]6CO_2 + 6H_2O + energy --> C_6H_1_2O_6 + 6O_6[/tex]
2. [tex]C_6H_1_2O_6 + 6O_6 --> 6CO_2 + 6H_2O + energy[/tex]
The correct option here is C.
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In which direction of the wave motion do longitudinal waves transfer energy
Answer:
B- Parallel
Explanation:
just took the test