Answers
Related Questions
what will happen if initiatives conserving forest does not exist
Answers
Answer:
it will lead to extinction of wildlife and also leads to erosion
Explanation:
Give two reasons why many people believe that artificial human cloning is not ethically acceptable.
Answers
Answer:
Probably because of the humans thoughts and character since they are all one of a kind.
Explanation:
Answer:
Every individual is different so thats my best guess.
Some students used vinegar to dissolve away the shells of three eggs to
represent animal cells. The students observed the changes in the eggs
when they were placed in different solutions,
Which statement best describes the importance of the cell membrane?
a.) the cell membrane allows solutes to enter the cell,but not water
b.) the cell membrane removes solutes from the cell and into the environment
c.) the cell membrane allows the cell to maintain homeostasis
d.) the cell membrane is a protective barrier that prevents water from entering the cell
Answers
Answer:
d
can i have brainliest i need 1 more
Explanation:
ttaccgg taacgca cgcatgt tgaccta gccaatt
Answers
Answer: Uh okay then
Explanation:
Answer:
tacgagcatgcatgca
tgca gcta tagac tacg
Evidence for sea-floor spreading has come from which option?
a. changes in the
depth of the ocean.
b. magnetic minerals
on the
ocean floor.
c. ancient climatic
conditions.
d. the breakup of
Pangaea.
HURRY PLEASE
Answers
Answer:
b. magnetic minerals
on the
ocean floor.
Explanation:
Trust me i'm smert.
How has the poison changed the concentration of pyruvate, NADH and intermembrane H+ in Jared’s cells?
Answers
Answer:
no change, increase, decrease
Explanation:
I just did it
Cyanide interrupts the electron transporter chain. Pyruvate concentration DOES NOT CHANGE. NADH concentration INCREASES in the matrix, and H+ concentration DECREASES in the intermembrane space.
-----------------------------------
Let us firts make a quick revision of aerobic respiration.
Through cellular respiration, cells degrade organic compounds and produce energy.
Aerobic respiration takes place in three steps:
1) Glycolysis is the first step of cellular respiration. It occurs in the cytoplasm, and its final product is Pyruvate.
2) The Krebs cycle takes place in the mitochondria matrix.
3) The electron transporter chain is placed in the internal mitochondrial membrane.
*******************
We already know that cyanide affects the electron transporter chain. So, let us focus on its functioning under normal conditions and under the cyanide effect.
⇒ Under normal conditions,
• ATP is produced at the end of the electron transporter chain.
• The electron transporter chain constitutes a series of enzymatic reactions to release and save energy for the correct functioning of the organism.
• Along the chain, there are four proteinic complexes in the membrane, I, II, III, and IV, that contain the electrons transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.
• Cytochrome oxidase (P450) is one of the enzymes involved in this electron transport.
• NADH and FADH2 provide electrons to the chain.
• While electrons move along the chain, complexes I, III, and IV pump protons to the intermembrane space.
• At the end of the chain, water molecules and ATP are produced.
⇒ Under cyanide effect,
• Ion cyanide inhibits cellular respiration.
• Cyanide binds to the ferric ion of cytochrome oxidase.
• Cyanide-ferric binding inactivates the enzyme and blocks electron transference.
• The chain is interrupted. Hence,
NADH and FADH2 stop providing electrons, complexes I, II, and IV stop pumping protons to the intermembrane space, there is no oxygen consumption and no ATP production.• Since muscles do not get to have ATP as a source of energy, they weaken.
• The interruption of the electron transporter chain produces an anaerobic state that could be culminating.
*************************
Now, let us answer the question
Pyruvate concentration ⇒ NO CHANGESince Pyruvate is produced in the cytoplasm, it is not affected by cyanide. Remember that cyanide only affects the electron transporter chain.
NADH concentration ⇒ INCREASE
Since NADH provides electrons to the chain, and Cyanide interrupts electron transport, there is an accumulation of NADH molecules in the matrix.
Intermembrane H+ concentration ⇒ DECREASE
Since the electron transporter chain is interrupted, no electrons are being carried, and no protons are being pumped to the intermembrane space.
--------------------------------------------
Related link: https://brainly.com/question/13975046?referrer=searchResults
https://brainly.com/question/24372542?referrer=searchResults
you are provided with a mixture of iron filings, sand and sawdust.explain how u will separate each of these substance from the mixture
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Help please I’ll mark you Brainliest
Answers
Answer:
I believe you are supposed to be asking questions for this question
Explanation:
How do genes affect the live of the offspring?
How do the offspring inherit advantages?
Advantageous traits and genes?
What is the difference between transpiration and diffusion
Answers
Answer:
In sunlight the concentration of water and oxygen molecules just inside the stomata is higher than the concentration of the air around the leaves so water vapor and oxygen diffuse, or move out, from the leaves through the stomata. Diffusion, then, is a physical driver of transpiration. Hope this helps!
Explanation:
Brainliest?
Which correctly describes the role of histones in eukaryotic cell division?
a) Histones connect sister chromatids.
b) Histones protect the ends of chromosomes.
c) Histones keep the DNA compact and organized.
d) Histones copy the DNA before division begins.
Answers
Histones copy the DNA before division begins is the correct role of histones.
What is Histone?A chromosome's structural support is provided by a protein called a histone. Long DNA molecules found on each chromosome must fit into the cell nucleus.
To do it, the DNA wraps around complexes of histone proteins, giving the chromosome a more compact form. Additionally, histones are involved in the control of gene expression.
A nucleosome, which is made up of eight histone proteins, can exist. DNA can loop around a nucleosome much like a small spool. Thus, histones are crucial in maintaining the genome's order and neat wrapping inside a cell.
Therefore, Histones copy the DNA before division begins is the correct role of histones.
To learn more about histones, refer to the link:
https://brainly.com/question/13036208
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Which would be an activity conducted by a biologist?
Answers
Answer:
well the answer would be describe the behavior of brown bats
Explanation:
I've had this question before.
You didn't exactly put the choices down but sorry if this is incorrect because this was correct for me!
What does evaporation change from ? Solid ———> liquid Liquid ———-> Solid What does condensation change from Liquid——-> solid Solid———> liquid
Answers
Answer:
Evaporation : Liquid --- Gas (Vapor) ; Condensation : Gas (Vapor) --- Liquid
Explanation:
Evaporation is the change of a liquid into gas or vapor, usually by increase in temperature. Eg : Water evaporation into vapors during water cycle, due to sun heat.
Condensation is the change of gas or vapor into liquid, usually by decrease in temperature. Eg : Vapors condensation into water droplets during water cycle, due to lower atmospheric temperature at higher height.
which level of organization is characterized by a group of cells that work together to perform a common function?
Answers
Answer:
Tissue
Explanation:
A group of cells that work together to perform a common function is called a tissue.
Hope this helps.
The correct answer is Tissue. :)
How can you recognize the difference between a fatally poisonous scorpion and a scorpion that is not harmful to humans?
Answers
Answer:
its color, its skin pattern so 2 speak
Explanation:
Hi, Please help me label these Cells and DNA, THANKS will MARK BRAINLIEST AND 5 STARS
Answers
Answer: I'm willing to help but, I can't see the screenshot
Answer:
The top left box is NUCLEUS.
The second box (from left to right) is CHROMOSOME.
Regarding the 2 boxes left:
Top one is GENE.
The one below is DNA.
Viruses are one of the leading causes of illness in the world
True
False
Answers
Answer:
True
Explanation:
Answer:
False, but be sure you read what follows.
Explanation:
False: Heart disease and Most Cancers are not viruses. Or at least as far as I know. However complicating the issue is the fact that after a viral infection, heart disease can develop.
Cancer is another example, and the answer again is not black and white. 16% of all cancers can trace their beginnings to a bacteria or virus. That leaves 84% whose beginnings are not that clear.
The question is not black and white. I'd be careful how you think of it. If something is a complication, is that a direct cause? I still think the answer is false, but don't be surprised if your instructor disagrees. Move on to something a little less black and white.
write any two disvantages of local units
Answers
Answer:
1.it will run only at that particular local place.
2.the people of other places would not be able to understand those units system
all the facts and observations gathered in an experiment are called A.conclusions B.Data C.theories D.hyposthesis
Answers
Answer:
data
Explanation:
All the facts and observations gathered in an experiment are called data. Therefore, option B is correct.
What is an experiment?An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before. Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.
The three primary categories of scientific experiments are quasi-experimental, observational, and experimental (non-experimental). The most rigorous type of scientific investigation is experimental, often known as randomized control. The most control is present, as the name would imply.
Data are the facts and the observations gathered in an experiment. Therefore, option B is correct.
Learn more about an experiment, here:
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WILL MARK BRAINLIEST!!! Can someone help me wit des 3 compare and contrast questions?
1.) What characteristics apply to just prokaryotic cells?
2.) What characteristics do both cell types share? (Prokaryotic cells & Eukaryotic cells)
3.) What characteristics apply to just eukaryotic cells?
Answers
Prokaryotic cells have the following features: The genetic material (DNA) is localized to a region called the nucleoid which has no surrounding membrane. The cell contains large numbers of ribosomes that are used for protein synthesis. At the periphery of the cell is the plasma membrane.
Answer: 1.Prokaryotes lack an organized nucleus and other membrane-bound organelles. Prokaryotic DNA is found in a central part of the cell called the nucleoid. The cell wall of a prokaryote acts as an extra layer of protection, helps maintain cell shape, and prevents dehydration.
2.Prokaryotic cells are surrounded by a plasma membrane and have DNA, cytoplasm, and ribosomes, like eukaryotic cells. They also have cell walls and may have a cell capsule. Prokaryotes have a single large chromosome that is not surrounded by a nuclear membrane.
3.Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
Explanation:
Earthquakes that occur far from plate boundaries are called
Answers
Answer:
intraplate' earthquakes
Explanation:
When salt is applied to slugs, they immediately shrivel up and die. Use the vocabulary words below to explain why and how this happens.
diffusion, osmosis, membrane, concentration.
Answers
Answer:
osmosis
Explanation:
The process that occurs when a solution meets a permeable membrane.
I'll give you a Brainliest for correct answer
Answers
Answer:
Nondisjunction causes it
......
what are the differences between antibiotics and vaccines???????........................
Answers
Answer:
Antibotics are to help treat a sickness while vaccines are to help prevent certain sicknesses... hope that helps a little.
Explanation:
Antibiotics are used to treat severe infection, but Vaccines prevent infections from ever becoming established. Vaccines are right to be used for protection against any future infection. and Antibiotics are effective for stopping the reproduction process of bacteria and do not have any effect on viruses. These are also not to be used for preparing for potential future infection.
Hope this Helps! May I Have Brainliest? <3
please yelp and explain, i will mark brainliest.
Answers
Answer:
Tectonic plates shift in some areas more than they do in other ones.
Explanation:
Hope this helps :)
P.S. can I have brainliest? lol
Answer:
I want to say its because of the tectonic plates that are under the Earth. The movement of the tectonic plates can cause the earthquakes to happen in faults and cracks in the Earth and commonly occur near the edge of these plates.
What would happen to an organism is
mitosis did not occur
Answers
Answer:
The organism would not grow.
If an organism were cut or burned, the damaged area would not heal.
The organism would not produce new cells.
Explanation:
Just did it on edge, June 17th 2022
what happen in meiosis during telophase II
Answers
Answer:
the chromosomes reach opposite poles, cytokinesis occurs, the two cells produced by meiosis I divide to form four haploid daughter cells, and nuclear envelopes form.
-Micoevolution.net
Explanation:
Finally, during telophase II, the chromosomes are enclosed in nuclear membranes. Cytokinesis follows, dividing the cytoplasm of the two cells. At the conclusion of meiosis, there are four haploid daughter cells that go on to develop into either sperm or egg cells.
Energy can move out of a cell.
True
O False
Answers
From which type of cells did multicellular organisms arise?
Answers
Answer:
Unicellular eukaryotes
Explanation:
All the following are usually recessive traits in humans EXCEPT: Your answer: Dark hair Colorblindness Straight hair Left-handedness
Answers
Answer:
dark hair
Explanation:
Give two examples of proteins
Answers
Answer:
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity.
Answer:
Actin and coronin are two examples of proteins.
