Answer:
I am pretty sure it is c
Explanation:
It is the most logical sorry if im wrong
The statement which represents a negative consequence of humans being hunter-gatherers is that they had to move around to find food. Thus, the correct option for this question is C.
What do you mean by Hunter-gatherers?Hunter-gatherers may be defined as the type of person who considerably depends primarily on wild foods for subsistence. They are humans who do not practice agriculture for subsistence, but, instead, rely on what they can gather, forage, and hunt for their food supply.
The negative impact was on the animals who fed on those plants as they would have had much less food to eat. In addition, as their hunting skills became more efficient, hunter-gatherers hunted some animal species to extinction. Due to this continuous process, they had to move around to find food in other locations.
Therefore, the correct option for this question is C.
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Emmerson concludes that nearly all water pollution takes place in surface water-water on the ground
and on top of lakes and ponds. This is pollution he can see. Does Emmerson's experiment support this
claim? Explain your answer.
Yes Emmerson's experiment supports this claim, the reason is because in the he did not made a general conclusion he said "nearly all" and in the experiment he was specific to surface water pollution, hence highlight the fact that there is also a case for deep water pollution that "he can not see"
What is surface water Pollution?
This can be defined as a type of water pollution in which pollutant occurs above the ground, like in streams, rives, oceans, it is basically caused by excessive nutrient found in waterways that leads to the growth of algae
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Answer:
No, because his experemint was of underground polution.
Explanation:
The raw materials required by a cell enter it through the _______ ______________ by a process called
__________________.
Answer: cell membrane, diffusion
Explanation:
Diffusion is the process of movement of molecules across the concentration gradient from a region of higher concentration to a region of lower concentration through a selectively permeable membrane until the concentration becomes equal throughout.
a type of membrane that only allows certain materials to pass through is called
Answer:
loading....
Explanation:
Answer:
pretty sure its the cell membrane
Explanation:
because usually the Cell Wall acts as a barrier and tries to keep everything out
hope this helps :)
1) A model of a bacteriophage is shown in the image here. When comparing the virus/bacteriophage to the host cell that it infects, which statements are accurate? Select ALL that apply.
es
A) Viruses and bacterial cells have DNA or RNA.
B) Viruses and bacterial cells undergo cell division.
Viruses and bacterial cells are approximately the same size.
D) Viruses and bacterial cells contain structures made from proteins.
E) Viruses and bacterial cells contain mitochondria for energy production,
The most accurate statements are A and C which represents that viruses and bacterial cells contain structures made from proteins, and viruses and bacterial cells have DNA or RNA.
What do you mean by Bacteriophage?Bacteriophage may be defined as any group of viruses that are capable of infecting bacteria.
Genetic information in bacteria and many viruses are encoded in DNA, but in some viruses, RNA is there to encode genetic information.
Viruses do not undergo the process of cell division, bacteria lack mitochondria for energy production.
The size of the bacteria is found to be much greater than viruses.
Therefore, the most accurate statements are viruses and bacterial cells contain structures made from proteins, and viruses and bacterial cells have DNA or RNA.
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The phosphorus cycle ..
A. begins with fertilizer.
B. happens very quickly.
C. has no atmospheric component.
Answer:
C.
Explanation:
its C. pls mark me brainliest
Answer: I believe the answer is C.
I need help please anyone ?!!!!!!
they have a strong cell wall to protect them chlroplasts
can someone please help me?
Answer:
Mass
Explanation:
Mass is a type of measurement—it tells us how heavy something is. There are 1000 grams in one kilogram.
1. What are the three main parts of the cell cycle:
HELP ME. HOW DO I DO THIS.
Answer:
okay
..................................
What is the movement of molecules from high to low concentration?
A. Exocytosis
B. Diffusion
C.Active Transport
D.Engulfing
Answer:
diffusion..
Explanation:
True or False questions
______ In plant cell, cytokinesis takes place by cell plate
______ meiosis occurs in all cells
______ tetrad formation does not occur in mitosis
______ chromosomes duplication occurs prior to both mitosis and meiosis
______ if a body cell of an animal has 40 chromosomes, a sperm from this animal will have 80 chromosomes.
Answer:
1 true
2 false
3 false
4 true
5 true
Explanation:
Can anyone please help
Answer:
The cell is the basic unit of structure and organization in organisms.
Explanation:
Not sure how to explain but I hope this helps.
Visual Reading Tool: Compare and Contrast
On each diagram below, label the following structures: New DNA, Origin of replication,
Replication fork, Unreplicated DNA.
suus
had
Ол
Prokaryotic DNA
Eukaryotic DNA
There are a few differences between the prokaryotic and eukaryotic replication processes. However, both of them include the general same steps. 1:Replication fork/2:Unreplicated DNA/3:Origin of replication/4:New DNA
--------------------------
Eukaryotic DNA replication processDNA Replication starts in some specific place named replication origin. Eukaryotic cells have many replication origens.
Helicase
This is the first enzyme that works in the replication origin. It separates the DNA into two strands allowing the replication forks to advance by unwinding the DNA. It breaks hydrogen bonds between nitrogenated bases pairs.Topoisomerase impedes the DNA double helix near the replication forks to get too coiled when the DNA is opening.
DNA polymerase III
This enzyme is responsible for DNA elongation. It is in charge of adding nucleotides to the growing chain, from 3' to 5' extremes.It includes only nucleotides that complement the original strand. They need to recognize a primer to begin.
Primase is in charge of synthesizing primers.
DNA polymerase I eliminate ARN primers and substitute them with DNA.
DNA ligase seals the gaps that remain after replacing the primers.
*************************************
Prokaryotic DNA replication processThe prokaryotic replication process involves the double helix unwinding and opening from an origin point, which is the replication origin.
Prokaryotic cells only have one replication origin.
Proteins DNA A
They recognize the replication origin and are responsible for the beginning of the process.
Helicase
This enzyme works in the replication origin breaking the hydrogen bonds between nitrogenated bases pairsIt separates the DNA into two strands allowing the replication forks to advance by unwinding the DNA.DNA polymerase I and III
Enzymes that are in charge of DNA elongation by adding nucleotides.They synthesize the new strains.They correct mistakes produced during the synthesis.Endonuclease
In charge of eliminating mistakes.They cut the erroneous segment.DNA ligase seals the gaps that remain after cutting segments.
---------------------------
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How do organisms interact with the living and non-living environment to obtian matter and energy?
Answer:
Ecosystems are ever-changing because of interdependence of organisms of the same or different species and the nonliving (physical) elements of the environment.
Explanation:
Seeking matter and energy resources to sustain life, organisms in an ecosystem interact with one another in complex feeding hierarchies of producers, consumers, and decomposers, which together represent a food web.
hope it helps`.
Take a look at Figure 22. If the toys continue to be carried by surface currents, where might they be found in the future? How might the height of the toys above the water’s surface have influenced the speed at which they traveled?
Answer:
Explanation:
only about 2 percent of drift bottles
How is it useful for the cell to be made of many individual parts, instead of a random mixture of many chemicals?
It is useful that a cell is made of many individual parts as they fulfill specific functions that allow it to carry out the functions of nutrition, metabolism, response to stimuli, information processing, reproduction and growth.
Cells are the smallest anatomical unit of organisms, and they perform several functions, encompassed within three main actions: nutrition, relating and reproducing.
To carry out these processes, cells have many individual parts that allow them to interact with the environment, providing energy to the body and creating waste during the process.Inside cells there are organelles, simpler structures that have specialized and differentiated shapes.It is through different biochemical processes that these organelles make the cell perform these functions and can survive and function.Therefore, we can conclude that it is useful that a cell is made of many individual parts as they fulfill specific functions that allow it to carry out the functions of nutrition, metabolism, response to stimuli, information processing, reproduction and growth.
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CELL STRUCTURE: Complete The following chart .
Molecules used for growth and repair
and molecules used for energy
A. become CO2 and H20, become part of the body
B. become part of the body, are lost as CO2 and H2O
C. become C6H1206, become ATP
D. become ATP, become C6H1206
Molecules used for growth and repair and molecules used for energy become C6H1206, become ATP.
What type of molecules are used for energy and growth?
ATP, or adenosine triphosphate, is the most frequently used transit molecule that quickly carries usable energy around and inside cells. It is used for cell growth, like mitosis.
What two types of molecules in cells are used to supply and store energy?Glucose and other food molecules are broken down by controlled stepwise oxidation to provide chemical energy in the form of ATP and NADH.
What molecules can be used for long term energy storage?Lipids are molecules that can be used for long-term energy storage.
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Use the Hertzsprung-Russell diagram to determine which condition describes each star. Use the arrows to help locate the stars.
TO
100,00
60
Betelgeuse
30 M
10 Solo
SRL
10%)
Cena
SUPERGIANTS
10 AL
Lifetime
10 yn
Comopun
Area
104
Beta
Polar
GIANTS
101
MAIN
SEQUENCE
Lifetime
10 yrs
102
|
101
Let me
10yrs
Sun —
01
Eleme
10yrs
CA
Cr
02
037
GPOSA
Chee7258
101
WHITE
DWARFS
Lifetime
for 0.1AL
R R 120
10"y
10
Sirius B
Carter
DX Cares
104 !
Answer:
Giants and dwarfs dx training cate
The diagram below compares the amounts of common elements found in the
human body.
Which elements are the labels 1 and 3 most likely to represent?
Answer:
C. Oxygen & Hydrogen.
Explanation:
The body is made of 65% Oxygen, 18% Carbon, 10% Hydrogen, 3% Nitrogen, and 4% other elements.
Brown eye color is a dominant trait and blue eye color is a recessive trait.
What typically happens when someone inherits one allele for brown eyes and one for blue eyes?
O The person has brown eyes, and brown eye color remains a dominant trait.
O The person has blue eyes, but brown eye color remains a dominant trait.
O The person has brown eyes, but blue eye color becomes a dominant trait.
O The person has blue eyes, and blue eye color becomes a dominant trait.
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Submit
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Mark this and return
a. The person has brown eyes, and brown eye color remains a dominant trait.
since brown is dominant they only need one alle to have brown eyes. I hope this helps
Advantages and disadvantages of bacteria
Answer: One disadvantage of bacteria is that it will you make you sick but that can also be an advantage because your body will build antibodies for that bacteria so that you don't get sick again
Explanation: My whole family is in the medical field except for one person.
Give all the possible Anti-codons for the amino acids listed below. (Use page 244 in your text). Histidine (His)
Given what we know about the genetic code, we can confirm that the anticodons recognized as Histidine are GUG, CAC, and CAU.
When a protein is synthesized, the cell reads the genetic code on the mRNA strand and uses tRNA to bring the corresponding amino acids together, thus creating the desired protein. This code is not unique however, what this means, is that more than one grouping of nucleotides (codons) can code for the same amino acid.
This helps to explain how there are 26 amino acids, and yet there are over 60 possible combinations of codons. Through careful study, scientists have been able to uncover that the amino acid histidine can be called by 3 distinct groupings of nucleotides. These are:
CACGUGCAUeach of which will cause the tRNA to bind to histidine.
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Va rog sa ma ajutați! Indentifica substantivele si conjucala din următorul fragment . ( Fritz ....) va rog , dau stele.
Answer:i dont know
Explanation:i dont know
Can someone help me with this...?
Answer:
gggggggggggggggggggg
What structure and function is found in all eukaryotes but is not found in prokaryotes? A. ribosomes that regula the flow of materials OB. mitochondria that produce energy for the cell OC. endoplasmic reticulum that produces energy for the cell DD. DNA that directs the cell's activity
Answer:
Explanation:
mitochondria that produce energy for the cell
(because mitochondria are found in animal cell i.e; eukaroyotic cell)
What is the relationship between potential energy and the distance travelled?
PLEASE HELP. will mark brainlyist!!! help help help
Answer:
Ff. I think...........
Measurements of cells from a gorilla show that, after hard exercise, the gorilla has less of what in its cells
Measurements of cells from a gorilla show that, after hard exercise, the gorilla has less of ATP in its cells. ATP is the energy coin of the cells.
Cellular respiration is a group of metabolic reactions by which aerobic cells can produce ATP by using the energy stored in the chemical bonds of foods and oxygen.
Cellular respiration has three main stages: glycolysis (occurs in the cytoplasm), the Krebs cycle and oxidative phosphorylation (these last two pathways occur in the mitochondria).
In oxygen deprivation conditions, muscle cells can also produce ATP by acid lactic fermentation.
Acid lactic fermentation is less efficient in terms of ATP production than cellular respiration.
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Match the word to the definition
Question 2 options:
a cell that lacks a nucleus and membrane-bound organelles
3
the theory that states that the cell is the basic unit of life and that cells come only from existing cells
a cell that has a nucleus
the basic unit of life
1.
prokaryotic
2.
eukaryotic
3.
cell theory
4.
cell
1 prokaryotic- a cell that lacks a nucleus and membrane-bound organel
2 eukaryotic-a cell that has a nucleus
3. Cell theory the theory that states that the cell is the basic unit of life and that cells come only from existing cells
4 cell - the basic unit of life
