During the Permian mass extinction more than 80% of the global animal species went extinct.
What was the Permian mass extinction?This was one of the many mass extinction events that occurred during the Earth's history. Mass extinction events are global die-off's of animal species. Throughout history, these have been caused by many factors, but often include a sharp change in global weather conditions. The Permian mass extinction killed of 95% of all land species and 70% of all marine life, averaging around 80% in total species.
Therefore, we can confirm that during the Permian mass extinction more than 80% of the global animal species went extinct.
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During a Vo2max test, many people have a Respiratory Exchange Ratio greater than 1.0 as they approach their VO2max. Why
The important of RER between 0.7 and 1 shows a blend of carbohydrates and fat as a basis of energy. In case the value is more significant than 1, it means anaerobic respiration as a result of more carbon dioxide being developed than the oxygen that is being consumed.
What is the difference between vo2max and relative vo2max?Absolute VO2 max is only the amount of oxygen you breathe in liters per minute.
This dose depends on your age, weight, size, and gender. Relative VO2 maximum Relative VO2 max calculates your weight in liters per minute per kilogram of body weight.
Thus, anaerobic respiration results of more carbon dioxide being forged than the oxygen that is being destroyed.
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"Explain how chemical energy for use in the cell is generated by electron transport and chemiosmosis"
PLEASE HELP!!
Answer:
Explanation:
The electron-carrier proteins are arranged in the inner mitochondrial wall. A dehydrogenase enzyme (think of it as the first protein of the electron-transport chain) oxidises NADH2 (which is the reduced coenzyme NAD) and/or FADH2 (reduced coenzyme FAD). The energy from the oxidation process is used to pump hydrogen ions from the matrix to the inter-membrane space of the mitochondrion. Because of this, gradient of hydrogen ion concentration builds up across the inner mitochondrial membrane, which generates a potential difference across the membrane. The protons then flow back to the matrix through an enzyme called ATP synthase (also called ATPase). (This is called chemiosmosis because a chemical substance (H+) moves across a membrane, down the concentration gradient.) This releases energy needed for the ATP synthase to phosphorylate ADP, i.e. make ATP (chemical energy for use in the cell) from ADP and inorganic phosphate.
Note: Bolded things are important, everything else is just additional clarification in case you need it. This is the last major phase of cellular respiration. If you want a deeper insight into the process, I suggest you read a bit about glycolysis and Krebs cycle.
3. What is the most common way for a system to lose energy?
Answer:
Heat energy
Explanation:
Maybe ..this can be
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If a cell with a 7% glucose solution is placed into an environment with a 15% glucose solution, which if the following would be correct:
A. The environment solution is hypertonic when compared to the cell.
B. The cell is hypertonic when compared to the environment.
C. When placed into the environment, the cell will gain water by osmosis.
D. When placed into the environment, the cell will neither lose nor gain water
Answer:
A. The environment solution is hypertonic when compared to the cell.
Explanation:
What is a scatter pattern? What can it tell a forensic anthropologist?
Answer:
A scatter plot (aka scatter chart, scatter graph) uses dots to represent values for two different numeric variables. The position of each dot on the horizontal and vertical axis indicates values for an individual data point. Scatter plots are used to observe relationships between variables.
A scattered pattern is an area where the bones are distributed after a while. This can tell anthropologist how long the body was in the area and the conditions scene the bones arrived.
Explanation:
Answer:
A scattered pattern is an area where the bones are distributed after a while. This can tell anthropologist how long the body was in the area and the conditions scene the bones arrived.
what was the environment like in the arctic 1 million years ago?
Answer:
it had no ice
Explanation:
Answer:
The arctic was free of ice during summertime.
What is the effect of artificial light on plant growth?
Explanation:
The study highlights that interrupting seasonal light stimulation with artificial light has a wide range of effects, including: temporal differences with herbivores; changes in crop development; suppression of flowering in wild species; reduction of dark periods from the environment required for phytoremediation
Which organisms from Kingdom Animalia are invertebrates?
Select all correct answers.
worms
amphibians
jellyfish
sponges
What does the sea otter do for the kelp forest?
O They control the urchin population by eating the urchins.
They control the sea slug population by eating plastic.
O They control the clownfish population by eating the kelp.
They control the kelp population by eating sea slugs.
Answer:
They eat large amounts of sea urchins, which keeps the creature's numbers in check and prevents the destruction of the kelp forest.
Explanation:
Answer: Sea otters have long been recognized as a classic example of a keystone species, a dominant predator that maintains the balance of kelp forest ecosystems by controlling populations of sea urchins, which are voracious kelp grazers.
.
Which is the next structure to contact air after it passes from the nose to the nasal cavity?
the pharynx
the larynx
the bronchus
the trachea
Answer:
the pharynx
Explanation:
edge 2022
The next structure to contact air after it passes from the nose to the nasal cavity is the pharynx.
What is pharynx?The pharynx is a muscular tube located behind the nasal cavity and mouth, connecting them to the esophagus and larynx. It serves as a shared pathway for both the respiratory and digestive systems.
In terms of the respiratory system, the pharynx plays a crucial role in the passage of air from the nasal cavity or mouth to the larynx. It acts as a conducting tube, allowing the air to flow smoothly towards the lower respiratory tract. The pharynx also houses the tonsils, which are part of the body's immune system and help protect against pathogens.
Additionally, the pharynx is involved in the process of swallowing. It facilitates the movement of food and liquid from the mouth to the esophagus, ensuring that they enter the digestive system and not the respiratory system.
Overall, the pharynx is a vital structure that serves as a passageway for both air and food, contributing to the proper functioning of the respiratory and digestive systems.
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What determines the type of feedback? A. How close to equilibrium the characteristic is B. How the body responds to a change C. How much product is present already
Answer:
The awnser is B
Explanation: no explanation
The fact that determines the type of feedback is "How the body responds to a change?" Thus, option B is correct.
What is positive feedback?A feedback has been known as the process where a system responds to an external or internal stimulus. There are two major types of feedback in a system, they are negative and positive feedback or we can say that there are two types of feedback is there one is positive feedback and another one is negative feedback.
Positive feedback is a type of response that occur when an output or response is an enhancement of the input. It's output moves further away from equilibrium. A negative feedback occur when a fraction of the output is fed back to the system to control fluctuation of other output.A feedback has been known as the process where a system responds to an external or internal stimulus.
Therefore, The fact that determines the type of feedback is "How the body responds to a change?" Thus, option B is correct.
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New cells have a _______ mix than parent cell
Answer: meiosis
Explanation:
new cells have a meiosis mix then parent cells
i might be wrong so i'ma also say try different because that also makes sense to me
new cells have a different mix than parent cell.
The heavily myelinated fibers that connect the two cerebral hemispheres are collectively called the:
Answer: corpus callosum
Explanation: The corpus callosum is a collection of nerve fibers that connect the two hemispheres.
What is the process by which arteries become hard and stiff as a result of too much pressure?.
Answer: atherosclerosis
Explanation:
this is the only thing i need thanks
Answer:
1. C
2.hypo
3.d
4.hyper
5. I don't know about that
What type of reproduction is needed in order for there to be genetic variation?.
Answer: any sort of reproduction that isn't as3xual (it's censored )
Explanation: because As3xual reproduction only has one parent, the genes are the same.
Please help ASAP
I did answer but i got it wrong
If you can’t see the answers:
A: Denitrification
B: Uptake
C: Decomposition
D: Nitrogen fixation
Answer:
C i think
thats what mushrooms do - Decompositate
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An upper motor neuron supplying the lateral rectus muscle of the eye would be part of the ________ tract(s)
Answer:
corticospinal tract
The neurons that travel in the corticospinal tract are referred to as upper motor neurons; they synapse on neurons in the spinal cord called lower motor ...
What is the matching base sequence to 5’ TGCTCGCTG 3’ ?
PLEASE ANSWER ASAP!!!!
Answer:
3' ACGAGCGAC 5'
Explanation:
since Adenine and Thymine pair together you would just switch them, also Guanine and Cytosine pair together so you also switch them. Finally, when you switch all of these you will have to switch the two numbers and that's it! :)
Discuss the ways in which carbohydrate metabolic pathways, glycolysis, and the citric acid cycle interrelate with protein and lipid metabolic pathways
The ways in which the carbohydrate metabolic pathways, glycolysis and the citric acid cycle relate as they obtain energy for the body.
What is metabolic pathways?
Metabolic pathways is the set of chemical reactions that occur in cells that allow them to stay alive, grow and divide.
Glycolysis - oxidation of glucose to obtain ATPKrebs cycle - oxidation of acetyl-CoA in order to obtain energyOxidative phosphorylation - elimination of electrons released in the oxidation of glucose and acetyl-CoA. Much of the energy released in this process can be stored in the cell in the form of ATP.Pentose-phosphate pathway - synthesis of pentoses and obtaining reducing power for anabolic reactionsUrea cycle - elimination of NH4+ in less toxic formsβ-oxidation of fatty acids - transformation of fatty acids into acetyl-CoA, for later use by the Krebs cycle.Gluconeogenesis -synthesis of glucose from smaller molecules for further use by the brain.Whit this information, we can concclude that the ways in which the carbohydrate metabolic pathways, glycolysis and the citric acid cycle relate as they obtain energy for the body.
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What is the half life of a radioactive isotope if a 500 gram sample decays to 62.5 grams in 99 years?
Answer:
24.75 years
Explanation:
62.5 is 1/4 of 500, which means that in 99 years it passed through four half-lifes. So, you divide 99 by four and you get that the half-life is 24.75 years. 25 years if it was rounded
Enzyme complexes that break down protein are called _____. lipases ubiquitins amylase proteasomes nucleases
Proteasomes are a large protein complex present in all eukaryotic cells that break down protein.
What are proteasomes?It is considered one of the main pathways involved in the processes of enzymatic protein degradation.
It is the group of proteins that are associated forming large complexes, whose function is to digest cytoplasmic proteins, generating peptides.
Therefore, we can conclude that proteasomes is a large protein complex present in all eukaryotic cells that breaks down protein .
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Which choice best represents what has occurred when a new population emerges that is not compatible with its former population?
predation
extinction
isolation
speciation
Answer:
Speciation
Explanation:
Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics
what is radioactive dating
Radioactive dating refers to the techniques used to date the age of rocks and fossils by radioactive isotopes.
What is Radioactive dating?Radioactive dating can be defined as a strategy to date the age of fossils by means of radioactive isotopes.
These methodologies (Radioactive dating) are fundamental for the application field of geologists and paleontologists.
In conclusion, Radioactive dating refers to the techniques used to date the age of rocks and fossils by radioactive isotopes.
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Hello people ~
Point out the odd one
a) nucellus
b) embryo sac
c) micropyle
d) pollen grain
Answer:
pollen grain
Explanation:
all of those answer choices are related to ovules except for the pollen grain
the pollen grain is like the sperm for flowers
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In humans, which of these is required for carrying oxygen from the lungs to body cells?.
How do plants get nutrients?
Explanation:
Plants get nutrients from the soil in the form of nitrates , nitrites also they obtain minerals from it .
Answer:
Plants get nutrients from air, water and soil. There are, sixteen nutrients essential for the growth of plants. Carbon and Oxygen are supplied by water. The remaining thirteen nutrients are supplied by soil.
In mammals, which structure supports the developing embryo if fertilization occurs?.
Answer:
It occurs in the ovaries, uterus,cervix and fallopian tube. give Brainiliest
HELP PLSS!!
In your own words, explain how recombinant DNA techniques are used to produce medications.
Explanation:
Recombinant DNA technology enables us to change the physiology of a cell. Through this, we can produce many humanoid enzymes in other organisms... For example insulin.