Answers
Answer:
a and b
Explanation:
because I have took the test before
Related Questions
What time is it is the United States, more specifically, Fort Knox, Kentucky?????
Answers
Answer:
6:52 PM as of right now
Explanation:
Fort Knox Kentucky uses eastern standard time, or (GMT-4) time.
Answer:
It's 6:52 my guy...Brainliest???
Explanation:
The decimal reduction time (DRT) to kill 90% of cell present for autoclaving a culture is 1.5 minutes. How long would it take to kill all the cells if 106 cells were present? What would happen if you stopped the heating process at 9 minutes?
Answers
Answer:
10.5minutes
Explanation:
DRT = 90%
Cells present = 10^6
Autoclaving = 1.5 minutes
Solution:
10^6(1.5)10^5(1.5)10^4(1.5)10^3(1.5)10^2(1.5)10^1(1.5)10^0(1.5)0=10.5
it would take it approximately 10.5 minutes to kill 10^6 of the cells.
If i should stop the heating process at 9 minutes this would have effect on some of the microbes as they are still present with 1 bacterium left which makes it not efficient.
XR
An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored. Samples of the cells are taken at intervals, and their sucrose concentration is measured. The pH is observed to decrease until it reaches a steady, slightly acidic level, and then sucrose uptake begins. Rank the steps from first to last. To rank items as equivalent, overlap them.
A proton Pump, using ATP, pumps protons outside.
Sucrose moves into the cell.
H+ moves down electrochemical gradient into the cell.
A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
pH decreases.
The gradient becomes sufficient.
Answers
Answer:
A proton Pump, using ATP, pumps protons outside
A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
pH decreases;
The gradient becomes sufficient.
H+ moves down electrochemical gradient into the cell; Sucrose moves into the cell.
Explanation:
A proton Pump, using the energy of ATP hydrolysis, pumps protons outside the cell.
A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
The continues outward pumping of protons by the proton pump causes the pH of the extracellular fluid to decrease
At some point the gradient becomes sufficient, and pH reaches a steady slightly acidic level.
H+ moves down its electrochemical gradient into the cell together with Sucrose through the hydrogen ion-sucrose co-transporter.
To rank items as equivalent, overlap them.
E
C
A
D
F
Co-transporterIn this experiment in which the mechanism of sucrose uptake by plant cells immersed in a sucrose solution, and the pH of the solution is monitored, the following steps are ranked in order:
E) pH decreases.
C) H+ moves down the electrochemical gradient into the cell.
A) A proton Pump, using ATP, pumps protons outside.
D) A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
F) The gradient becomes sufficient.
A co-transporter also called a symporter, is a carrier protein that transports a solute and an ion from one side of the membrane to the other at the same time.
The proton pump is an integral protein that builds a proton gradient across a biological membrane.
The cell cannot import sucrose by simple diffusion, the cell expends energy to move the substance against a concentration gradient.
The sodium and potassium maintain the electrochemical gradient of living cells, the direction an ion moves across a membrane is determined by the electrochemical gradient.
Learn more about sucrose uptake:
https://brainly.com/question/559824
Which of the following describes the
cytoskeleton?
A. a web of proteins that gives shape and
support to the cell
B. a membrane-bound organelle that contains
genetic material
C. the outer covering of a cell that separates it
from the environment
D. the structure that contains the information
about how to make a cell's proteins
Answers
Answer:
either b or c
Explanation:
its been a while since I took biology but I'm pretty sure its in between those two answers
82 A
Analyzing Hydrophobic and Hydrophilic Interactions
What interactions are occurring between the protein
and the aqueous solution? Select three options.
Hydrophobic
region
Hydrophilic
region
Hydrophobic areas move away from water.
O Hydrophilic areas are attracted to water.
Hydrophilic regions of the protein are attracted to
other hydrophilic regions.
Hydrophilic regions of the protein are attracted to
hydrophobic regions.
Hydrophobic and hydrophilic interactions cause
protein folding.
Isolated Protein
Protein in aqueous
solution
Intro
✓ Done
Answers
Answer:
Hydrophobic areas move away from water.
Hydrophilic areas are attracted to water.
Hydrophilic regions of the protein are attracted to other hydrophilic regions.
Explanation:
Proteins are made up of amino acids. The side chains of these amino acids determine whether they are polar or non-polar. Hydrophilic amino acids are the types that are soluble in water and their side chains are polar. They are attracted to protein parts that are water-soluble. Examples are Glutamate and Lysine.
The hydrophobic amino acids have non-polar side chains. They withdraw from water by taking on an oily form. They are attracted to parts of the protein that are not aqueous. Examples are Valine and Tyrosine.
Answer:
1. Hydrophobic areas move away from water.
2. Hydrophilic areas are attracted to water.
5. Hydrophobic and hydrophilic interactions cause protein folding.
Explanation:
5
What is the main idea of this text?
A
No two human microbiomes are the same.
B
The human body is a diverse ecosystem made up of microbes.
C
Some bacteria cause infections and even life-threatening diseases.
D Some scientists think that infants who lack exposure to microorganisms
develop a higher rate of allergies.
Answers
Answer:
What is the text?......
The process of photosynthesis requires the starting materials
Answers
Answer:
Carbon Dioxide, Water, and sunlight
Explanation:
Answer:CO2 and H2O
Explanation:
Which organelle found in plant cells allows them to make food using sunlight?
lysosome
chloroplast
Golgi body
nucleus
Answers
Answer:
Chloroplast
Explanation: Its choloroplast since chloroplasts are sites where photosynthesis takes place.
Please mark as brainliest if you want!
Answer:
its chloroplast
Explanation
I got it right and because Im smart like that.
What 3 molecules, bonded
together, create a single link in the DNA chain
Answers
Answer:
nucleotides, phosphate, sugar (for a better explanation go to google and that should help you! I hope this helps you)
DNA was isolated from water samples taken from six different sites. This gel was made to help determine where silver carp are found.
The results of the eDNA analysis for silver carp.
Which lane of the gel shows evidence of silver carp DNA?
A.
Lane 7
B.
Lane 2
C.
Lane 3
D.
Lane 4
its for Environmental Science
Answers
Answer:
Lane 4
Explanation:
Based on the information that is provided, it seems that the gel electrophoresis analysis was conducted to determine the presence or absence of carp DNA in water samples from six different sites.
What happens in the process of gel electrophoresis ?In gel electrophoresis, DNA fragments are separated based on their size and charge by applying an electric field to a gel matrix. The negatively charged DNA fragments move towards the positively charged electrode, with smaller fragments moving faster and migrating farther down the gel than larger fragments.
In this particular gel, lane 7 is the negative control, which means that it should not show any bands of DNA fragments. Lane 8 is the positive control, which should show a band of DNA fragments of known size and sequence. The purpose of the positive control is to ensure that the gel electrophoresis is working properly and that the expected band is present.
If the bands formed in lanes 1, 3, 5, and 6 correspond to the band in the positive control lane (lane 8), then it suggests that carp DNA may be present in the samples taken from those four sites.
However, it is important to note that this inference is based on assumptions and limited information provided, and a more thorough analysis and interpretation of the gel electrophoresis results would be required to draw definitive conclusions about the presence or absence of carp DNA in the water samples from those sites.
Learn more about gel electrophoresis at :
https://brainly.com/question/2960312
#SPJ7
What's the difference between a statute and a regulation in the US?
A. Statutes are laws passed by federal agencies, while regulations are laws passed by Congress
B. They're the same thing. Laws and regulations express the same concept.
C. Statutes are laws passed by Congress, while regulations are laws passed by federal agencies
D. Citizens that break the law are subject to heavier penalties, whereas breaking regulations would only result in fines at the worst
Answers
Answer:
A. Statues are laws passed by federal agencies, while regulations are laws passed by Congress.
Explanation:
A statute is a law, enacted by the state or federal legislature. Regulations are rules set by agencies that fill in the ambiguous areas of laws
Which of the following is an example of a species adapting to changing
conditions in their ecosystem?
A. Amur leopard populations declining because of the spread of humans into their
habitat
B. Longer walrus" tusks because the oysters they eat burrow deeper into the sea floor
Answers
Answer:
b
Explanation:
their tusks allow them to get food which is an adaptation for survival
Answer:
The correct answer would be B.
Explanation:
B is the correct answer because the walrus's tusks gives them an advantage to capture the oysters that are deep in the sea floor.
3. Every species of fig has its own species of fig wasp to pollinate its flowers. Without the fig wasp, there would be no fig seeds. Without the fig, the wasp could lay no eggs. What is the relationship between these two organisms?
Answers
Answer:
obligate mutualism
Explanation:
A type of mutualism in which the species involved are in close proximity and interdependent with one another in a way that one cannot survive without the other.
The relationship between the fig wasp and the fig tree as described in the illustration would be symbiosis.
A symbiotic relationship is a form of mutualistic relationship between two organisms in which both of them benefit.
The fig wasp benefits the fig tree by helping with the pollination of their flowers. Without pollination, fertilization and seed production become impossible.
The fig tree, in return, benefits the fig wasp by providing a conducive environment for egg-laying. Without this environment, the fig wasp cannot lay eggs and the population of fig wasp will dwindle.
More on symbiosis can be found here: https://brainly.com/question/3350498
1. Your arm is made up of four different types of
Answers
Answer:
joints or muscles
Explanation:
Answer:
Tissues
Explanation:
connective, muscle, epithelial, and nervous tissue.
Enzymes affect the reactions in living cells by changing the
(A Products of the reason
B( Speed of the reaction
C( temperature of the reaction
D(pH of the reaction
Answers
................
Can a fossil be created in a few weeks? How long do you think it
takes a dinosaur fossil to form?
Answers
Answer:
Fossils are defined as the remains or traces of organisms that died more than 10,000 years ago, therefore, by definition the minimum time it takes to make a fossil is 10,000 years. But, that is just an arbitrary line in the sand – it means very little in terms of the fossilisation process.
Explanation:
Fossils are a record of organisms that lived in the past. are two main categories of fossils: body fossils and ichnofossils. Body fossils are the result of preservation of parts or the entire body of a plant, animal, or microorganism. These are the fossils that people are most familiar with, consisting of skeletons, teeth, shells, carapaces, organisms in amber, petrified wood, plant material, pollen, etc. Ichnofossils (also called trace fossils) are evidence of an organism’s activity. Common ichnofossils are animal footprints and trackways, burrows, traces of plant roots, coprolites (fossil feces), and borings in rocks, bones, wood, shells, or other substrates. The study of fossils provides information about ancient biological communities, and the physiology, behavior, and ecology of organisms.
In conclusion, fossilization at least at the present time, is thought to be a very unlikely process and it is believed that only a very small fraction of organisms that lived in the past became fossils. The majority of these fossils were hard skeletal parts or wood. To become fossilized, organisms must be rapidly buried, preferably in a fine sediment with geochemical conditions that favor the exchange of minerals between the sediment and organic components of the organism, and that exchange of minerals is possible because of dissolved minerals in flowing water. If those conditions occur, fossilization must necessarily be a rapid process of a few hours to a few months if it is to occur before decay destroys any record of the organism. Fossilization does not take thousands or millions of years, but is most likely to occur in catastrophic conditions such as would have existed during the Genesis Flood.
Can you read this??
Dndkfrjjdfjjd
Answers
Answer:
I can't read the picture because it's too pixelated, but "Dndkfrjjdfjjd"
clearly means "Da National Day Known For ReJoicing Joe's Dad For Joyous Jiving Dogs".
According to ______
electrons are added one sublevel at a time.
Answers
Answer:
Two electrons are added to one sublevel at a time (Hund's Principle)
Diagram the process of cellular respiration.
Answers
Answer:
Explanation:
Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.
How do
you think humans can impact the
biosphere by affecting the biogeochemical
cycles?
Answers
Answer:
hope this will help u
Explanation:
Biogeochemical Cycles
Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.
Explore interactions between climate change and biogeochemical cycles.
Answer:
Human activities
moreover, biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.
What evidence supports the LAW OF CONSERVATION OF ENERGY?
1. Mechanical energy is converted to chemical energy during photosynthesis
2. Energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis
3. Oxygen is made from the breakdown of carbon dioxide during photosynthesis
4. The sun gives off light energy that is absorbed by plants
Answers
The evidence that supports the law of conservation of energy is as follows: mechanical energy is converted to chemical energy during photosynthesis.
LAW OF CONSERVATION OF ENERGY:The law of conservation of energy states that energy can neither be created nor destroyed but is changed from one form to another. This means that energy involved in chemical reactions and natural phenomena is recycled by transformation and doesn't get destroyed. A typical example that obeys this law is photosynthesis, which converts mechanical energy in sugar molecules to chemical energy in ATP.Learn more about law of conservation of energy: https://brainly.com/question/2264339
Answer: The Answer is 3. Oxygen is made from the breakdown of crabon dioxide during photosynthesis.
Explanation: I took the test.
Explain what would happen if the body's kidneys failed?
A. The body will not be able to produce enough blood.
B. The body will not be able get rid of waste products made by cells.
C. The body will not get sufficient amount of clean water.
D. The body will not be able to dispose of carbon dioxide in the blood.
Answers
Answer:
b:) the body will not be able to get rid of waste products made by cells
Explanation:
Concept map using these words
Answers
Answer:
ummm cant see
Explanation:
Can't see the picture
When you are sitting in a bath, are your skin cells in a hypertonic or hypotonic solution?
Answers
Answer:
hypotonic
Explanation:
The uterus has three parts. Which one of the following is NOT one of the parts of the uterus?
Question options:
A. Corpus B.Fimbrus C.Fundus D.Cervix
Answers
Answer:
My ans is Letter B. Fimbrus
Answer: B. Fimbrus
This is not part of the uterus.
Hope this helps!
How do organisms affect one another's survival and environment ?
Answers
Also An organism’s niche is affected by both its tolerance and
competitive interactions.
• Predation, parasitism, and herbivory are interactions in
which one species benefits, while the other is harmed.
• Mutualism and commensalism are relationships in which
neither participant is harmed.
Considering the role of coenzyme Q, how do you think this product might function to benefit the heart?
Answers
Answer:Coenzyme Q10 has a crucial role of transporting molecules when electron transport chain takes place this is highly effective in enhancing aerobic respiration which results to a constantly supply of oxygen to the heart like when you exercise and effective aerobic respiration boost the function of the heart
Explanation:
Robert Hooke used a microscope to see that cork looked like it was made of little boxes. Anton van Leeuwenhoek saw tiny cells swimming in pond water. Which part of cell theory do these observations best support?
A.Cells come from other cells.
B.All organisms are unicellular.
C.Cells are the basic unit of life.
D.All organisms are multicellular.____
23. Which of the following characteristics do all unicellular organisms share?
A.
All unicellular organisms reproduce.
B.
All unicellular organisms have a nucleus
C.
All unicellular organisms eukaryotes
.D.
All unicellular organisms prokaryotes.____
24. Which term describes “one or more cells that carry out all of the processes needed to sustain life”?
A.DNA
B.organism
C.organelles
D.cytoplasm____
25. DNA is genetic material that provides instructions for all cell processes. Where is the DNA located in prokaryotes?
A.in the nucleus
B.in the cytoplasm
C.in the flagella
D.in membrane-bound organelles
Answers
Answer:
just tryna get points lol
For an assignment, Alexis has to write a scientific question. She writes, " How much fat in food can cause brain cancer ? " How can she best rewrite this question so it is a scientific question?
Answers
Answer:
Will eating too much fat in food cause brain cancer?
Explanation:
A good scientific question is one that can have an answer and be tested. Avoid how and why questions.
Answer:
Do foods that contain a high amount of fat cause brain cancer?
Explanation:
Do foods that contain a high amount of fat cause brain cancer?
Select the terms that fit in the science category "Earth and Space." Select all that apply. water air animals land plants solar system light sound
Answers
Answer:
water
air
animals
plants
solar system
light
Explanation:
Earth is one of the nine planets and it is the one known to host human life. Earth is made up of the atmosphere which contains gases needed to sustain life. Water, air, animals, and plants can be found on the earth.
Space is a vacuum that hosts the galaxies and sun which make up the solar system. The Sun emits light which can be reflected on the earth as the planets revolve around the sun.