Answer:The bags should be massed before going into the distilled water, the temperature of the solutions in the experiment should be held constant, the bags should be kept in the distilled water soil it ion for the same length of time.
(Check all that apply)
Explanation:
Answer:
A,C,E
Explanation:
The percentage of a hunter-gatherer society’s diet provided by hunting versus gathering was mostly determined by _______.
a.
the climate
b.
the types of prey
c.
hunting skill
d.
the size of the human population
Answer:
a. the climate
Explanation:
A topographic map is a two-dimensional model that uses contour lines to represent points of equal
1
barometric pressure
2
temperature gradient
3.
elevation above sea level
4
magnetic force
Answer:
3. elevation
Explanation:
True or False: Enzymes have an optimal or ideal pH level?
Answer:
All enzymes have an ideal pH value, which is called optimal pH. Under the optimum pH conditions, each enzyme showed the maximum activity. For example, the optimum pH of an enzyme that works in the acidic environment of the human stomach is lower than that of an enzyme that works in a neutral environment of human blood. All enzymes have an optimum pH that they work best at. Its often neutral pH 7, but not always.
Explanation:
i hope this is good?
How could you test your hypothesis?
Find the total mass of the water and the dry
pasta, then cook the pasta and measure the
mass of the cooked pasta and the water in
which it is being cooked.
Find the mass of the dry pasta, then cook the
pasta, drain it, and find the mass of the
cooked pasta.
Answer:
Explanation:
Find the total mass of the water and the dry pasta, then cook the pasts and measure the mass of the cooked pasta and the water in which it is being cooked.
Large molecule formed when many smaller molecules bond together are called
metabolism
enzyme
solution
polymer
Answer:
The answer is Polymer
Choose all the answers that apply.
Muscles in the small intestine are _____.
smooth
striated
involuntary
voluntary
cardiac
Pls pick multiple
Answer:
smooth and involuntary
Two layers of smooth muscle form the small intestine. The outermost layer is the thin, longitudinal muscle that contracts, relaxes, shortens, and lengthens the gut allowing food to move in one direction. The innermost layer is a thicker, circular muscle.
Also smooth muscle is not under our control so is called involuntary
How do scientists find the epicenter of an earthquake?
Scientists use triangulation to find the epicenter of an earthquake. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects.
Help please! thanks this due today!!!! :)
Answer:
Just shape the pigeon with cardboard than paint it!
Explanation:
Hope this helps have a great night!
Is this right? NEED HELP ASAP
Answer:
They all seem to be correct, good job!
Answer:
Correct
Explanation:
What is the law of conservation of matter? I
Answer:
Matter can neither be created nor destroyed
Explanation:
Answer:that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change
Explanation:
pls help will mark brainliest.
Answer Q1-7 using the food web pictured below.
1. How many food chains make up the food web?
2. Which organism is an herbivore?
3. Which organism is an autotroph?
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?
5. Which organism is an omnivore?
6. Which organisms belong to more than one food chain?
7. Which organism belongs to more than one trophic level?
Answer:
1) 3
2) Insect
3) Plant
4) Snake; 3rd
5) bird
6) All of them
7) bird
Explanation:
Fill in the blanks
For photosynthesis to take place, an organism needs the reactants ______ and ______ as well as access to sunlight. The stomata in a leaf allovis in the reactant _______. The reaction takes place in the organelle _______.
Answer:
water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
Explanation:
1. The least reactive elements on the periodic table are the _____________ (high number of valence electrons)
2. What makes a reactive metal reactive?
3. What makes a nonreactive noble gas nonreactive?
These are all the questions I need help with (plzzz help mee)
Explanation:
1. the noble gases because they have a full valence shell
2.the amount of valence electrons
3. they have a full valence shell and dont need any more electrons
To become a virus, you only need 2 parts. One is Genetic Material or Genome (DNA or RNA) to
replicate it and the
or Protein Coat which protects the genome from digestive
enzymes. (Answer in lowercase) *
Answer: true
Explanation:
DNA Polymerase makes a copying error in a gene and an additional base
gets put into that gene. Which of the following is the most reasonable
result? *
1. The codons on the mRNA transcript contain an extra base which causes the amino
acid chain to not make the desired protein.
2. This causes RNA polymerase to transcribe the gene backwards.
3. The causes RNA polymerase to not recognize the gene and therefore no transcription
takes place.
4. The RNA polymerase recognizes extra bases and won't transcribe them.
Answer:
1. The codons on the mRNA transcript contain an extra base which causes the amino
acid chain to not make the desired protein.
Explanation:
Then error will make it not to produce the required output
pls like
Write the complementary RNA strand to the following DNA sequence: 5'ACGTAC 3'
No one ever helps me it would be nice if someone did , please give me the correct answer it’s easy :(
Answer: C
Explanation: bc the fertilizer is the toxic chemical
Answer:
it is most likely C, all the other choices seem redundant
Explanation:
Which cell structures are correctly paired with their functions?
Answer:
C is the answer. There are single-celled organisms that are considered a living thing. The others are all true about the cell.
Explanation:
Hoped this helped.
Which of the following characteristics of Figure 1 best shows that the fragment is RNA and not DNA?
A
The 5' to 3' orientation of the nucleotide chain
B
The identity of each nitrogenous base
С
The charges on the phosphate groups
D
The type of bond linking the nucleotides together
Answer: I’m pretty sure it’s B
Explanation:
there is a uracil nitrogenous base in it and only rna has uracil whereas dna has thymine
It takes place when magma introduces
great amount of heat into an existing rock
resulting in the recrystallization and mineral
reaction in the rock.
Answer:
The correct answer is - contact metamorphism.
Explanation:
Contact metamorphism is one of the two metamorphism processes which takes place when the pre-existing rock is introduced to a great amount of heat which affects it by an intrusion of magma. It is known as a low pressurized, high-temperature type of metamorphism.
An example of this type of metamorphism which experiences recrystallization in the rock and forms a metamorphic marble that is formed by the recrystallization and mineral reaction of the limestone.
please answer this for me
Answer:
Plants
Explanation:
In plant cells, the vacuoles are much larger than in animal cells
What is a function of the respiratory system?
Answer:
The respiratory system's main purpose is to move fresh air into your body and moving waste gasses out (like carbon dioxide when you breathe out)
How do i know if its entering or leaving or neither just by the precentage?
Answer:
1. Shrink
2. Swell
3. Neither
Explanation:
The percentage of water indicates how pure the water is, i.e. how concentrated the molecules of water are.
The higher the percentage of water, the more water molecules there are in the space.
Water molecules move from a high concentration to a low concentration across a semi permeable membrane, by the process of osmosis.
In beaker 1, the water outside is 89%, and inside the bag is 92%. That means the water inside the bag is at a higher concentration than outside. That means water will leave the bag, moving from a high concentration to a lower concentration outside. The bag will shrink.
In beaker 2, the water outside is 97%, and inside is 92£%. That means the water inside the bag is a lower concentration than outside. That means water will enter the bag, moving from a higher concentration outside to a lower concentration outside. The bag will swell.
In beaker 3, the concentration of water inside and outside is the same. That means they are in an equilibrium (the movement is balanced) so neither will occur
Fungus is an organism not drawn in the above food chain although it has a very important role. Describe an important role of organisms such as fungi and bacteria can you help me plz!!!
Answer:
Explanation:
Fungi and bacteria are decomposers. This means they help breakdown dead plant and animal matter.
This is kind of a baseline descripiton but i hope it helps!
Two of the most crucial creatures in an ecosystem are fungi and bacteria. They are essential for the nutrition cycle, the breakdown of organic matter, and the generation of food for other species. In order for other creatures to exploit the complex organic compounds, fungi and bacteria convert them into simpler forms.
What is the way to the food chain ?For instance, when dead plants and animals are broken down by fungi and bacteria, vital nutrients like nitrogen, phosphorous, and sulphur are released into the soil. Following the uptake of these nutrients by plants, food is produced that is then devoured by other species in the food chain.
Additionally, bacteria and fungi collaborate with other living things like plants in symbiotic interactions. For instance, several fungi collaborate with plant roots to provide the providing the plant with nutrients it needs in exchange for carbs.
Mycorrhizal symbiosis is the name for this kind of partnership, which is necessary for the development and well-being of plants. Since many bacteria and fungi produce chemicals that can stop the formation of dangerous infections, they also play a significant part in disease prevention.
Finally, fungus and bacteria are significant food sources for many organisms. For example, fungi like mushrooms and others feed animals like deer, birds, and other fauna.
Learn more about fungus at:
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What two parts of a nucleotide do not change throughout the structure of DNA?
Answer:
The second portion of the nucleotide is the sugar. Regardless of the nucleotide, the sugar is always the same. The difference is between DNA and RNA.
Explanation:
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Five-carbon sugar (deoxyribose sugar) and phosphate moiety are the two parts of a nucleotide which do not change throughout the structure of DNA.
What are Nucleotides?Nucleotides are the organic molecules which are consisting of a nucleoside molecule and a phosphate moiety. They serve as the monomeric units of the nucleic acid polymers- deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are the essential biomolecules within all the different life-forms on the Earth.
Nucleosides are made up of nitrogenous bases and pentose sugar. There are changes at the nitrogenous bases in the different nucleoside molecules however, there are no changes in the pentose sugar and the phosphate moiety of the molecule.
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PLEASE HELP ME Are humans predators in their ecosystem? Explain in at least 5 sentences.
Their new study shows that humans are strange predators. Unlike other animals, we target adult prey in large numbers. That is a practice that can push populations of those prey into decline, the researchers warn. People mainly target — at least among wild mammals and fishes — prey that are old enough to reproduce.
Humans are considered to be apex predators in their ecosystems due to their ability to manipulate and dominate other species through hunting, agriculture and urbanization.
Why are human predators?Humans are considered to be apex predators in their ecosystem due to their ability to manipulate and change their environment to suit their needs. Humans have the ability to hunt and consume a wide variety of other organisms, including other predators. Humans also have a significant impact on the environment through activities such as deforestation, pollution, and hunting.
However, humans are also capable of acting as stewards of the environment and preserving biodiversity through conservation efforts. The relationship between humans and their ecosystem is complex and multifaceted.
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I NEED HELP ASAP!! will be willing to mark you brainliest!
Answer Q1-7 using the food web pictured below.
1. How many food chains make up the food web?
2. Which organism is an herbivore?
3. Which organism is an autotroph?
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?
5. Which organism is an omnivore?
6. Which organisms belong to more than one food chain?
7. Which organism belongs to more than one trophic level?
1. 6
2. insect
3.plant
4.snake
5. snake
6. plant
7. bird
hope this helps, sorry if i got any wrong
If plant has the same amount of sunlight but less water, then the process of glucose would A- increase, B-decrease, C- stay the same
Is ATP used for long term storage?
Answer:
No
Explanation:
ATP is not used for long term storage.
Using f(x) = 3x + 4 find f(3)
Answer:
f(3)=13
Explanation:
f(x)=3x+4
f(3)=(3x3)+4
f(3)=9+4
f(3)=13