Answer:
a. True.
Explanation:
Even though the cells in our body rely on glucose as a source of energy, they can replace glucose's energy with lipids or proteins' energy. In the brain's case, this is not possible since the blood-brain barrier, which is a highly selective barrier between the blood and the extracellular fluid in the central nervous system, allows the passage of glucose as the only source of energy. This is why maintaining the correct levels of glucose is crucial for the metabolism in the brain.
i am thick and stiff
i have boxlike shape
i am found only in plants
i am what makes them to stand upright
Answer:
belt?
Explanation:
help help help help!
Answer:
1:C
2:C
3:D
4:D
this is 110% fact answer
Which of the following factors would NOT cause a population decline?
a. disease
b. natural disasters
c. competition
d. predation
e. peace
Answer:
peace
Explanation:
All the other options are bad. Peace would bring unity.
Natural Disasters-can infect waters,kill peoplw,etc.
Competition-people killing each other or animals to gain something over their opponent
Diseases-kills people,brings anxiousness
Predation-Kills animals. No animals,bad environment
Answer:
peace is the factor that will not cause that
A chest radiograph of an asymptomatic 37-year-old man showed a 3-cm nodule in the middle lobe of the right lung. The nodule was excised with a pulmonary wedge resection, and sectioning showed the nodule to be sharply circumscribed with a soft, white center. Culture of tissue from the nodule grew Mycobacterium tuberculosis. Which of the following pathologic processes has most likely occurred in this nodule? a. lipid acummulation b. liqufactive necrosis c. caseous necrosis d. coagulative necrosis e. gangreous necrosis f. apoptosis g. apoptosis h. fat necrosis
Answer:
caseous necrosis
Explanation:
The pathologic process that most likely occurred to this nodule would be caseous necrosis. This occurs at the time of death of a some cells but it is a very unique scenario in which the cell maintains a soft and white proteinaceous dead cell mass, just like in this scenario. This type of cell death usually occurs in lymph nodes but can occur in any cell in the body including in the lung.
Popcorn and potato chips are two of the most popular snack foods. One serving of the typical microwave popcorn and one serving of regular potato chips provide about the same amount of calories. However, one serving of popcon is 4 cups, while a single serving of chips is only about a cup. A group of biology students decides to explore the question of whether the type and amount of a snack a person eats affects how much they eat at their next meal using popcom and chips as the snacks. Which of the following hypotheses could address this question?
A. People who consume one serving of chips eat the same volume of food at their next meal as people that have one serving of popcom for a snack.
B. Consuming one cup of chips as a snack decreases the number of calories a person consumes at their next meal more than a snack of one cup of popcom.
C. Eating one serving of popcorn reduces the volume of food a person consumes at their next meal more than eating one serving of chips
D. People who consume 4 cups of popcom as a snack eat more calories at their next meal than people who eat 4 cups of chips as a snack
E. All of the above
Answer:
c
Explanation:
define dorsiventral leaf
A dorsiventral leaf, also known as a bifacial leaf, is a type of leaf structure characterized by having distinct upper and lower surfaces with different functions and structures.
The upper surface of a dorsiventral leaf is called the adaxial surface, while the lower surface is called the abaxial surface. The adaxial surface is usually dark green and is exposed to more sunlight, while the abaxial surface is typically lighter in color.
This structural asymmetry allows for efficient photosynthesis on the upper surface while minimizing water loss through stomata on the lower surface.
Dorsiventral leaves are commonly found in dicotyledonous plants and contribute to their overall shape and function in terms of light absorption, gas exchange, and transpiration.
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How is energy stored when ADP is converted to ATP?
Answer:
Energy is stored in the bonds between the phosphate groups (PO4-) of the ATP molecule. When ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, energy is released. When ADP and inorganic phosphate are joined to form ATP, energy is stored.
Explanation:
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For aerobic respiration, a variety of substances must be in a state of influx across the inner membrane. Assuming a brain cell in which glucose is the sole energy source, indicate for each of the following substances whether you would expect a net flux across the membrane and if so, how many molecules will move in which direction per molecule of glucose catabolized.
- electrons
-pyruvate
-oxygen
-ATP
-ADP
-Acetyl CoA
-Glyceral-3-phosphate
-NADH
-FADH2
-Oxaloacetate
-Water
-Protons
Answer:
electrons inflow
pyurvate inflow
oxygen inflow
ATP Outflow
ADP Inflow
Acetyl CoA no net change
Gluceral-3-phosphate no net flow
NADF inflow
FADH2 outflow
Oxaloacetate no net flow
water outflow
proton outflow
Explanation:
Aerobic respiration is the process in which cell get oxygen from within. There is no inflow of oxygen and the movement is minimum. The membrane covering the cell releases the excess oxygen if the initial storage is more than the requirement. This is in the form of outflow in ATP.
Genomic imprinting may involve a single gene, a part of a chromosome, or a whole chromosome. Indicate if the following statements are true or false regarding this phenomenon
1. Genomic imprinting is permanent in the somatic cells of a given individual. _____________
2. Genomic imprinting is permanent and affects future generations. ____________
3. Methylation is the chemical change underlying genomic imprinting. _____________
4. If a gene is imprinted, the offspring can express both the maternal and paternal allele. _________
Answer:
1. True.
2. False.
3. True.
4. False.
Explanation:
A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
Genome imprinting can be defined as an epigenetic biological process in which a genomic domain or genes of a living organism is marked biochemically with information that is related to parental origin. Thus, it is a non-Mendelian inheritance i.e genome imprinting is typically independent of Mendelian inheritance.
1. True: Genomic imprinting is permanent in the somatic cells of a given individual.
2. False: Genomic imprinting is permanent and affects future generations. It does not affect future generations because generally it is expressed in a parent of origin specific form.
3. True: Methylation is the chemical change underlying genomic imprinting.
4. False: If a gene is imprinted, the offspring can express both the maternal and paternal allele. It is independent of Mendelian inheritance.
A biologist grow a plant inside a sealed glass jar. The plant keeps growing for several days but then dies. At the start of the experiment, the jar had a mass of 3 kg. At the end of the experiment, it still had a mass of 3 kg. Which of the following explains why the mass was the same? * (1 Point)
•The plant created mass.
•The jar's temperature was the same as before.
•The jar was sealed and new mass could not enter.
•The plant did not grow enough to add mass to the jar.
Answer:
A planta não cresceu o suficiente para adicionar massa ao jarro
What effect did the human population have on Easter Island? How did they change the island's natural cycling of matter and energy?
Answer:
The population history of the island remains highly controversial. In addition to internal conflict, the population crash has been attributed to “ecocide,” in which the Island's resources were exhausted by its inhabitants, reducing its ability to support human life.
Explanation:
Europeans was known to discovered Easter Island in 1722 and it's name was given by Captain Admiral Jacob Roggeveen.
The human population growth had a negative effect on the Easter Island.
The ecocide hypothesis is the one explanation to how the human population increased exponentially since its colonization and as such
Human populations did over increased the carrying capacity of the Island to support sustainable crops, and in consequence, the island was severely deforested.
The island's natural cycling of matter and energy also reduced or change and as such the people fought among themselves for scarce resources of the island. They had little food and were starving and they resorted to cannibalism.
The island was also plaque by blackbirding from 1862 to 1863.
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The lever of gases that surrounds a planet is known as the
Answer:
Gases that surround a planetary body is an atmosphere.
Explanation:
From Greek atmo- vapor, stean, and from Latin sphaera - globe, ball, celestial sphere
The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns. The father had second-degree burns on his entire chest, abdomen, and both arms, and third-degree burns on his entire left lower extremity. The daughter suffered first-degree burns on her whole head and neck and second-degree burns throughout both lower extremities.
a. What percentage of the father's body was covered by burns?
b. What percentage of the daughter's body received first-degree burns?
c. What part of the daughter's body has both the dermis and epidermis involved?
d. The father experiences a good deal of pain in the area of the chest and abdomen, but little pain in the leg. Why?
Answer and Explanation:
The father had 54% of the body covered by burns, since a little more than half of his body was burned. In addition, to calculate the percentage of body burn, the following values are considered: head, arms and legs - 9% torso front - 18% torso back - 18%. In addition, the father feels little pain in his legs (which had worse burns) because the third degree burn destroys the nerve endings, while the second degree burn only damages these endings promoting intense pain.
The daughter had 9% of her body burned by first degree burns, which corresponds to her lower limbs. These burns involve the skin and the epidermis, for this reason, we can say that the legs are the part of the daughter's body that has compromised hair and epidermis.
We can study DNA to trace the processes of evolution
A) True
B) False
Answer:
True
Explanation:
It's true because it wants to be true.
Protists are usually ____________ and live in _________ environments.
A.single-celled, dry
B.multi-celled, moist
multi-celled, dry
single-celled, moist
Answer:
The answer is D
Explanation:
Hope that helps
Which sequence of events best describes the current theory of the origin of life on Earth?
Answer:
Development of simple bacteria --> RNA formation --> DNA formation
Explanation:
The sequence of events best describes the current theory of the origin of life on Earth development of simple bacteria --> RNA formation --> DNA formation.
What is RNA?According to the hypothesis and researchers, it seems to confirm that RNA was the first genetic or hereditary material that was present in the simple form of bacteria developed first.
RNA is the molecule responsible for the origin of life on the earth and evolved all the required processes and methods for carrying and expressing the genetic information of an organism before DNA. DNA is evolved from RNA molecules of simple bacteria.
Nucleic acid is one of the biological molecules in living organisms. The two types of nucleic acids are DNA and RNA. DNA (deoxyribonucleic acid) is a double stranded biological molecule that stores genetic information in living cells. They are made up of monomers called nucleotides.
Therefore, The sequence of events best describes the current theory of the origin of life on Earth development of simple bacteria --> RNA formation --> DNA formation.
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What enzyme is used to break down bacteria
What is the relationship between the levels of CO2 in the atmosphere and the levels of CO2 in the ocean?
Answer:
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.
hiii has anyone done the Earth's Interior, Project: Earth’s Layers on edg 2020 if have pls sand to mee. if not pls do not answer. i will mark brilliant
Answer:
Crust, mantle, and the core are the interior parts of earth.
Explanation:
Earth's interior is divided into three layers i. e. crust, mantle, and the core. The temperature of crust is lower than the rest of the layers and when we go inside earth from crust to mantle and the core, the temperature is increases. The temperature of crust is 200° Celsius to 400° Celsius, the temperature of mantle is 1000° Celsius to 3700° Celsius and the temperature of core is 4,400° Celsius to 6,000° Celsius.
Answer:
Earth's interior is divided into three layers i. e. crust, mantle, and the core. The temperature of the crust is lower than the rest of the layers and when we go inside earth from crust to mantle and the core, the temperature increases. The temperature of the crust is 200° Celsius to 400° Celsius, the temperature of the mantle is 1000° Celsius to 3700° Celsius and the temperature of the core is 4,400° Celsius to 6,000° Celsius.
Explanation:
edge 2021
An earthquake is best described as a
I need an edg answer
Answer:
short term
Explanation:
Answer:
short term
Explanation:
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What keeps object A in orbit around object B?
The force of gravity between objects A and B.
The force of gravity between objects A and C.
The force of gravity between objects A and E.
The force of gravity between objects B and X.
9514 1404 393
Answer:
(a) The force of gravity between objects A and B.
Explanation:
The force of gravity between two objects is what keeps them in orbit around their common center of mass. If A is in orbit around B, it is because of ...
The force of gravity between objects A and B.
_____
Please note this question can be asked different ways, so different answers may apply.
Answer:
A. The force of gravity between objects A and B.what are the similarities between a grasshopper and a toad
Well the similarities between them is that both are unicellular organisms... both of them do digestion process as well as excretion i.e perform metabolic axtivites..
both of them are part of eco system and as well as food chain...
and the most funny pne they produve sound by vibrating their vocal chord
What is the reaction for photosynthesis?
Answer:
The carbon dioxide (CO2), water (H2O), and sunlight become new energy (stored in a sugar molecule called glucose, C6H12O6) and oxygen (O2). The original elements that make up carbon dioxide and water are never lost or destroyed during the process.
Answer:
I would most likely react in a positive way. Photosysntesis is pretty cool! I would probably say woow! or gasp loudly. However reactions to vary based on the individual i know many people who find the color green disgusting. For this reason they would probably say "ew" or "urgh" and be fairly negative.
Explanation:
Energy (check all that apply)
a. can be transferred
b. can be transformed
c. can be created or destroyed
d. cannot be created or destroyed
Select the correct answer.
Ships accidentally spread a species of sea urchins to an area of the sea in which they previously didn’t live. The graph depicts the growth trend of native seaweed, a common food for sea urchins, after this invasion. What could ecologists do to curb the trend in the seaweed population?
A.
Eliminate the sea urchins’ competitor.
B.
Introduce more sea urchins.
C.
Introduce a competitor for seaweed.
D.
Introduce a predator for invasive sea urchins.
Answer:
D!
Explanation:
Introducing a predator to kill the sea urchins will lower their population and/or make them move away from the area they invaded
A deleterious recessive allele is one that can be harmful when it is found in its homgous condition, resulting in a poorly fit phenotype. An example of this is the allelefor sickle cell, which results in the condition known as sickle cell anemia when both recessive alleles are inherited. owever, in regions of Afriche proportion of the sickle cell allele is igher than expected, with as much as 15% of the alleles in the population being the recessive, deleteriou rsion. In the African population, there is also a high prevalence of malaria, a disease caused by the parasitic infestation of a plasmodium protozoan in the blood of humans. The recessive allele for sickle cell has been maintained over many generations. Evaluate the graph above and select the claim that supports the high frequency of the recessive allele in these African populations.
A)There is a selective advantage to the aa genotype, as the presence of sickle cell provides a greater fitness in an environment where malaria is common.
B)There is a selective pressure against the aa genotype, but the presence of malaria induces new mutations which generates more alleles within the population.
C)There is directional selection towards the Aa genotype, since aa is often a lethal condition. Non-random mating tends to maintain the recessive allele in the population.
D)There is a selective advantage to the heterozygous (Aa) condition as there is selective pressure against both the AA and aa genotypes. This maintains the recessive allele in the population.
Answer:
D) There is a selective advantage to the heterozygous (Aa) condition as there is selective pressure against both the AA and aa genotypes. This maintains the recessive allele in the population.
Explanation:
Since the AA condition is more likely to be affected by malaria and the aa condition is more likely to not survive the sickle cell condition, the heterozygote here has the advantage.
The high frequency should be considered the D) There is a selective advantage to the heterozygous (Aa) condition.
Evaluation of the graph;Since the AA condition should be impacted by the malaria and the aa condition should not able to survive the cell condition i.e. sickle.
At the same time, the heterozygote has the advantage.
Also, there is the selective pressure that oppose to the AA and aa genetypes.
Hence, the option d is correct.
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choose the correct statement with respect to unicellular organisms:
what are the options so I can help :)
An osteocyte is a main cell type in which tissue ?
1) adipose
2) cartilage
3) loose connective tissue
4) bone
5) blood
Answer:
Bone-
Explanation:
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answer:
I believe the answer is A.
Explanation:
It wouldn't be B or C and I don't think D really has anything to do with biotechnological research.
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The relationship between a carnivore and an herbivore can be stated as
A
parasite and host
B
predator and prey
C
prey and predator
D
scavenger and parasite
The relationship between a carnivore and an herbivore can be stated as B predator and prey.
What are the predator and prey ecological relationships?The predator and prey ecological relationships can be defined as ecological associations in which an organism serves as food for others in the food web, thereby leading to the homeostasis of the whole system in the food chain.
Therefore, with this data, we can see that predator and prey ecological relationships are based on different trophic levels where one organism situates below in the food chain is the prey of another.
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