Answer:
Endothermic reaction
Explanation:
Photosynthesis is an endothermic reaction because sunlight is being absorbed during the reaction and the definition suggests that in a reaction if heat is being absorbed it is termed as an endothermic reaction.
An early model of the atom, shown below, incorrectly described the structure of the atom as an area of positive charge with small, negatively charged particles inside
The Plum Pudding
Model of an Atom
charged
Negatively
charged des
Which of the following correctly describes why the plum pudding model is no longer accepted as an accurate model of the atom?
There aren't actually negatively charged particles in atoms
o Scientists found new evidence and revised the theory to fit the data better.
o Scientists discovered that atoms actually have positively charged partides dispersed throughout a negative mass.
Scientists revised the evidence to fit this model of the atom better.
Answer:
B
Explanation:
Scientists discovered that atoms actually have positively charged particles dispersed throughout a negative atomic mass correctly describes why the plum pudding model is no longer accepted as an accurate model of the atom.
What is the difference between atomic number and atomic mass ?
Atomic number of an element is defined as total number of protons present in the nucleus, neutrons carry no net electrical charge, so it is the charge number of the nucleus.
atomic mass of an element can be defined as the atomic weight is measured total mass of an element’s atom, the total number of neutrons and protons in the nucleus of an atom.
Both Atomic mass and an atomic number of elements are closely related if atomic number is high, then the atomic mass is also said to be high.
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Which method is most appropriate for finding out which of the layers to the right
is the youngest?
What process is affected when leaves are removed from a lycophyte
Answer: Photosynthesis.
Explanation: Lycophytes need their leaves in order to do photosynthesis,
if not, they will die.
Which example of artificial selection is caused by human activity
Answer:
Un ejemplo de la selección artificial es el caso de los perros, evolucionaron de los lobos, sin embargo, esta evolución se dio a partir de la selección de ciertos atributos que los humanos fuimos seleccionando. Las razas actuales tienen características que seleccionamos para distintas funciones.
Explanation:
no seeds in watermelons
Quincy and Leon are comparing sponges and cnidarians. Quincy says that spicules in sponges are similar to stinging cells in cnidarians. Leon disagrees.
Which best explains who is correct?
A. Leon is correct, because sponges have stinging cells and cnidarians have spicules.
B. Leon is correct, because spicules help sponges during reproduction and stinging cells are not involved in reproduction.
C. Quincy is correct, because both spicules and stinging cells can be used to protect against predators.
D. Quincy is correct, because both spicules and stinging cells can be used for stinging prey.
Answer:
Quincy is correct, because both spicules and stinging cells can be used to protect against predators.
Explanation:
its right on the quiz
Answer:
the answer is C
Explanation:
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compare amd contrast the working of a kidneys and the artificial dialysis
Answer:
Based on these data, the blood presented weekly to an average dialysis system in centre-based care in ANZ = 325 ml/minute (i.e. 0.325 L) x 60 minutes x 5 hours x 3 treatments/week = 292.5 litres.
Scroll back for a moment and compare: two normal kidneys receive 10,000 litres of blood/week but a dialyser (the artificial kidney) in ANZ gets a measly 300 litres to play with, if it's lucky.
Yet, while that is clearly a stark difference, the comparison in the US is even starker!
The average calculation for a centre-based patient in the US is: 400 ml/minute (i.e. 0.4 L) x 60 minutes x 3.5 hours x 3 treatments/week = 252 litres; a low volume by ANZ standards, even after (my view) the higher access-damaging pump speeds used in the US have been factored in.
To compare these differences in another way, in ANZ only 292/10,000 = 2.93% of the blood presented in a week to two normal kidneys is presented for dialysis. In the US, it is even less: a paltry 2.52% (= 252/10,000).
What about home-based dialysis?
As a comparison, many home patients, especially in ANZ, perform up to 8-9 hours (mean = 8.5 hours) of overnight, while-asleep dialysis for an average of 5 nights/week. Most who undertake these schedules also run access-friendlier pump speeds of 225-250 ml/minute (mean = 0.2375 L). This provides 0.2375 x 60 x 8.5 x 5 = 605 litres/week for dialysis.
In the US, the most commonly used home profile seems to be a 400 ml/minute x 2 hour/treatment x 6 treatments/week program; this is the one that is most often delivered by the NxStage system, a low-flow system that, by its design, offers less efficient solute clearance compared to the ANZ-preferred single-pass systems. Thus, US home patients under this model present 0.4 L x 60 minutes x 2 hours x 6 treatments/week = 288 litres/week to a less efficient system. While this “short daily” home model clearly presents more blood for dialysis per week than does US centre-based practice, it is still less than the average ANZ centre-based volumes and compares even less favourably with the 600+ litres/week that are presented to the more efficient single-pass systems used by many/most ANZ home dialysis patients.
Explanation:
Hope this helps!
HELP!!!!!!
Jack and Jill have no children. However, if they can produce four daughters, they will inherit four million dollars from their grandparents. What is the probability of having four girls?
Answer:
tbh in my opinion i dont know if its right i think its 26%
Explanation:
Breathing rate and pulse rate indirectly measure cellular
respiration because during cellular respiration
[ Select]
and [Select]
Cry Shape HeartyAnswer:Cry Shape Hearty
Cry Shape HeartyCry Shape Hearty
Cry Shape HeartyExplanation:Cry Shape Hearty
Cry Shape HeartyCry Shape Hearty
Which of the following is NOT a difference between RNA and DNA molecules? *
a) the sugars in each are different
b) RNA contains a uracil instead of a thymine
c) DNA is required for protein synthesis, RNA is not
d) RNA is single-stranded while DNA is double-stranded
Answer: its b
Explanation:
PLEASE HELP!!! WILL MARK BRAINLIST!!!!
Cuttlefish are small organisms that live in the cold deep waters of the ocean. They have elongated bodies with tentacles surrounding their mouths. They contain pigmented organs called chromatophores that allow them to change color in order to blend into their environment. Their diets consist of small fish, crustaceans, shrimp, and crabs. The picture on the right shows an infant cuttlefish sitting on the ocean floor. Which of the following best explains this young cuttlefish's behavior?
A. The cuttlefish sees a predator which is an external stimulus. It then responds to its internal stimulus of Fear by changing color to blend into its surroundings in order to hide from the predator.
B. The cuttlefish sees a predator which is an internal stimulus. It then responds to its internal stimulus of fear by changing color to blend into its surroundings in order to hide from the predator.
C. The cuttlefish sees a predator which is an internal stimulus. It then responds to its external stimulus of fear by changing color to blend into its surroundings in order to hide from th predator.
D. Cuttlefish for which is an external stimulus. It then responds to its external stimulus of fear by changing color to blend into its surroundings in order to hide from the predator.
E. The cuttlefish sees a predator which is external stimulus. It then responds to its internal stimulus of fear by changing its eating habits and hunting the predator.
Answer:
it may be D. But, im not 100% sure. I hope this helped a little
Answer: C
Explanation:
internal: Internal Stimulus. An Internal Stimulus is a stimulus that comes from. inside an organism. Examples: You have an infection so you run a fever.
external: External Stimulus. An External Stimulus is a stimulus that comes from. outside an organism. Examples: You feel cold so you put on a jacket.
Plants grown from runners and leaf cuttings have the same traits as the parent plant. Plants grown from seeds can vary from the parent plants in many ways. Why can this happen?
Explanation:
Plants produced from asexual reproduction are the result of mitosis, so they are genetically identical.
Asexual reproduction produces plants that are genetically identical because they are the result of mitosis.
What is asexual reproduction?Asexual reproduction is a type of reproduction that does not involve gamete fusion or chromosome number changes.
Asexually reproduced offspring from either unicellular or multicellular organisms inherit the entire set of genes from their single parent.
Asexual reproduction is also possible in yeast, fungi, plants, and bacteria. Yeast most commonly reproduce by budding.
Plants and fungi reproduce asexually via spores. Plants can indeed procreate asexually through vegetative propagation.
Asexual reproduction is significant because it allows for a rapid and significant increase in the number of individuals.
Many weeds and invasive species, for example, thrive in part due to their high capacity for vegetative reproduction.
Thus, the plants grown by seeds will have genetic variation due to meiosis in the cells. The runners will be identical to the parents as they will undergo asexual reproduction.
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what occurs when an antibody attaches to a virus?
a-the antibody turns into a macrophage
b-the antibody turns into a t cell
c-the virus replicates
d-the virus is destroyed
Check all that apply for Mitosis
daughter and parent cells have the same number of chromosomes
daughter cells have half the number of chromosomes as parents
divides once
divides twice
2 daughter cells
4 daughter cells
Answer:
With respect to mitosis it is true that:
Daughter and parent cells have the same number of chromosomes.Divides once.2 daughter cells.Explanation:
Mitosis is the process of cell division that occurs in somatic cells, resulting in two daughter cells identical to the original cell, that gave rise to them. This process occurs because of the need of organisms to grow, develop, regenerate and repair themselves.
Somatic cells are diploid cells —full chromosome charge— and the result of their mitotic division are diploid daughter cells. The process of mitosis occurs only once during each cell cycle.
The other options correspond to meiosis, where from one cell haploid daughter cells are obtained, two successive divisions occur - meiosis I and II, the final result being 4 cells.
Why is this statement false? “The amount of carbon on our entire planet can increase or decrease depending on the fluctuations of the carbon cycle.”
Answer:
False because the carbon cycle is the process by which the carbon in the atmosphere of earth is exchanged and released in the biosphere and atmosphere of the earth. So basically, the amount of carbon is increased or decreased by the burning of fuels and not by the fluctuation of the carbon cycle.
The statement is false due to the fact that carbon does not decrease or increase due to the fluctuation of the carbon cycle.
Carbon flux in the carbon cycleThe level of carbon in the carbon cycle changes based on both natural and anthropogenic processes.
The natural processes include respiration, photosynthesis, and volcanic eruption while anthropogenic processes include the burning of fossil fuels, usage of emission technology, etc.
These processes lead to the addition and fixation of carbon from the cycle.
Thus, the cycle itself does not fluctuate but the level of carbon in the cycle.
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How do fish increase lake carbon dioxide levels?
Answer:
The primary sources of carbon dioxide in fish ponds are derived from respiration by fish and the microscopic plants and animals that com- prise the fish pond biota. Decomposition of organic matter is also a major source of carbon dioxide in fish ponds.
Fish can play a role in mitigating the accumulation of CO2 in aquatic ecosystems through Photosynthesis, Respiration, Organic Matter Decomposition, and Carbon Sequestration.
The carbon cycle in lakes and the role of fish within it:
1. Photosynthesis:
Aquatic plants, including algae and submerged vegetation, undergo photosynthesis, which involves using sunlight, carbon dioxide, and water to produce oxygen and organic carbon compounds. This process helps to remove CO2 from the water.2. Respiration:
Fish and other aquatic organisms respire, consuming oxygen and releasing CO2 as a byproduct. However, the amount of CO2 produced by respiration is typically balanced by the oxygen produced through photosynthesis.3. Organic Matter Decomposition:
When plants and animals die in the lake, their organic matter sinks to the bottom, where it is decomposed by bacteria and other microorganisms. This decomposition process consumes oxygen and releases CO2.4. Carbon Sequestration:
Some of the organic carbon compounds produced by photosynthesis can be stored in the lake sediment, effectively sequestering carbon for extended periods.Thus, through photosynthesis, respiration, the breakdown of organic matter, and carbon sequestration, fish can mitigate the accumulation of CO2 in aquatic environments.
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Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1
Fitness Log
How are glycolysis and phosphagen systems used in both aerobic and anaerobic exercise? (Site 1)
Answer:
Aerobic glycolysis has a slow rate of ATP production and is predominantly utilized during longer-duration, lower-intensity activities after the phosphagen and anaerobic systems have fatigued. It is important to remember that all three of these systems contribute to the energy needs of the body during physical activity
Can I get brainliest so I can reach the next rank?
How is polyploidy defined?
Question 22 options:
extra chromosome sets
frequency of crossover
independently linked genes
random allele assortment
Answer:c
Explanation:
c
which organell is responsible for producing green pigment
Answer:
Chloroplast
Explanation:
The organelle responsible for producing green pigment in a cell is the chloroplast.
The chloroplasts are a type of plastids that produces chlorophyll in plants. Chlorophyll are very important in the light reaction process of photosynthesis. They are produced by the chloroplasts.What name is given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA?A. RNA processing.
B. Gene expression.
C. Polypeptide formation.
D. Transcription.
E. Translation.
Answer:
I think it is c have a good day
DNA, the RNA polymerase core enzyme, and the subunit are the first transcriptional components. mRNA, small and large ribosomal subunits, initiation and elongation factors, as well as tRNA, are all parts of the translation process. Thus, option D is correct.
What are the factor affecting the process of transcription?Proteins called transcription factors are involved in the process of turning DNA into RNA, or transcribed DNA.
A large variety of proteins—aside from RNA polymerase—called transcription factors start and control how genes are transcribed.
A gene's transcription is boosted by transcription factors that serve as activators. Reducers lessen transcribing.
An enhancer or silencer is a collection of transcription factor binding sites that can turn a gene on or off in a particular region of the body.
Therefore, Transcription is the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA.
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Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype? HELP I NEED TO PASS THIS TEST
A.
Brown Hair
B.
Blonde Hair
C.
Brown and Blonde Hair
D.
Black Hair
Answer: His phenotype will be Bb. He will have brown hair because it is a dominant trait.
Explanation: Heterozygous indicates that there are two different genes present in a genotype (Bb instead of BB or bb).
Mark's phenotype will be Brown hair because he is Bb i.e. heterozygous.
What is phenotype?The term phenotype simply refers to a trait that may be observed.
Pheno means observe.
The observable qualities or traits of an organism resulting from the interplay of genetics and environment i.e. one or more genes physical expression.
What is heterozygous?At a given gene locus, the existence of two distinct alleles.
One recessive gene and one dominant gene or two separate mutated alleles, can make up a heterozygous genotype.
so, the Mark's phenotype will have brown hair because he is heterozygous thus contain Bb and B is responsible brown hair which is dominant over gene b which is recessive and responsible of blonde hair.
Hence, the correct answer is A.
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A chemical pesticide was applied to an area of this ecosystem by landowner to control the mouse population. There was decrease in the mouse population due to the presence of this pesticide. Which one of the following would most likely occur first due to this change in the ecosystem? *
Answer:I really need it
Explanation:what’s the answer
What type of molecule in animal cells provides a “map” for making proteins?
Answer:
ribosomes!
Explanation:
Answer:
nucleic acids
Which of the following adds inorganic phosphorus to an ecosystem
Answer:
The largest reservoir of phosphorous is sedimentary rock.
Major sources of phosphorous to aquatic ecosystems are fertilizer runoff, sewage leaks, and industrial wastes.
Eccess phosphorous can lead to eutrophication
Explanation:
Phosphorus come from different sources such as aquatic ecosystems and fertilizers used for plants. When these substances containing phosphorus and those from industrial wastes find their way into water bodies, they tend to cause eutrophication, which is the natural enrichment of water bodies.
Also, it is known that a very small portion of phosphoric acid contribute to acid rain in the atmosphere.
sorry for a grainy picture. please help, and please don’t answer something random just for points, this is due in 30 mins
Answer:
the answer is the number of moons
Explanation:
Planets are massive celestial bodies that orbit a star or stellar remnant. ... Planets may have natural satellites (moons) and may or may not be inhabited. Every planet has a unique infographic, but most of them cannot be interacted with. Travel from planet to planet requires use of the Galaxy Map.
Which of the following statements about meiosis is
correct?
O Two parent cells divide into four daughter
cells during meiosis II.
O One gamete divides into two parent cells
during meiosis II.
O Meiosis I creates cells with one set of
chromosomes, while meiosis II creates cells
with two sets.
O No daughter cells are created during meiosis
Answer:
The answer is
A. Two parent cells divide into four daughter cells during meiosis II.
Explanation:
What kinds of “invisible” hazards do they face in the mines?
Answer:
Fire, flood, collapse, toxic atmospheric contaminants, and dust or gas explosion
Explanation:
hope this helps(´▽`ʃ♡ƪ)
Nancy is explaining why chlorophyll is classified as a plant pigment and how it is useful in photosynthesis. Which property of chlorophyll would be most appropriate for her to cite?
A. chlorophyll's ability to absorb light
B. chlorophyll's green color
C. chlorophyll's presence in chloroplasts
D. chlorophyll's reactivity with oxygen
Answer:
A. chlorophyll's ability to absorb light
Explanation:
Within the chloroplasts of plants, a complex biochemical mechanism, photosynthesis, takes place. Here, light energy is converted into chemical energy in the form of stable carbohydrates.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
In the chloroplast, the light-dependent and light-independent reactions in which sugars are formed occur. In the light reaction that stimulates photosystems, pigments such as chlorophyll absorb light energy at specific wavelengths.
Specifically, chlorophyll then forms photosystem complexes (PS I & PSII) with proteins- these absorb and transfer light electrons etc to other downstream reactions like photolysis and the electron transport chain.
All animals are eukaryotes. In a sentence or two, explain what this means.
Answer:
They all lack cell walls and chloroplasts and have smaller vacoules
Answer:
they consist of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus
Explanation:
If a plant lost light exposure, in what ways would photosynthesis be affected?
Answer:
Too much light energy would damage plants' biological structure and prevent photosynthesis from happening. This is why the photosynthetic process, in general, shuts down during the hottest hours of the day.
Using the definition given during the meeting, define "biology "
Answer:
The study of life and all living creatures or organisms
Explanation:
Bio- means life and -ology means the study of
Therefore, the term biology means the study of life and all living creatures or organisms
