Answer:
The options are not complete because the answer is neither i or ii
spleen is a secondary lymphoid organ
the correct answer is Bone marrow and thymus
DescDescribe the evidence for endosymbiosis that is present in eukaryotic cells today. ribe the evidence for endosymbiosis that is present in eukaryotic cells today.
The evidence for endosymbiosis present in eukaryotic cells is associated with the presence of mitochondria and chloroplasts.
What is the endosymbiosis theory?The endosymbiosis theory is a theory in biology that states eukaryotic cells evolved as a consequence of symbiotic relationships between prokaryotes and primitive eukaryotes.
The endosymbiosis theory is supported by mitochondria and chloroplasts, which contain their own genetic material, ribosomes and a similar size when compared to bacteria.
In conclusion, the evidence for endosymbiosis is associated with the presence of mitochondria and chloroplasts.
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Which statement best explains the purpose of pathos? It uses imagery to highlight the author's description of place. It uses logic to make the author's beliefs seem reasonable. It appeals to authority to show that the author is trustworthy. It appeals to emotions to emphasize the author's point of view.
Answer:
It appeals to emotions to emphasize the author's point of view.
Explanation:
Place the steps of the infection in the correct order.
1
2
3
4
5
6
7
LOL
LOL I also don't know the answer bro sorry
LOL
In this type of passive transport, materials may have their movements helped by membrane proteins.
Facilitated diffusion
Simple diffusion
Simple diffusion
Exocytosis
Answer:
Facilitated diffusion
Explanation:
Diffusion across a membrane, along a concentration gradient via membrane protiens. No energy is required hence passive.
A person with a traumatic brain injury now exhibits some symptoms including
erradic, impulsive behavior, worse judgement than usual of risky situations, and odd
social behaviors and violent mood swings. Based on these symptoms, which area of
the brain was most likely invovled in the injury?
A. Temporal lobe
B. Cerebellum
C. Frontal lobe
D. Thalamus
Answer:
C. Frontal lobe
Explanation:
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The frontal lobe of the brain, behind the forehead, is strongly associated with motor function, spontaneity, impulsive behavior, judgement decisions, and social behaviors and mood.
What is TRUE about the North and South Poles? Select all that apply.
The poles experience all four seasons.
The poles never get any direct sunlight.
The poles have daily equal amounts of sunlight and darkness.
They both get the same amount of sunlight.
The poles never get any direct sunlight.
They both get the same amount of sunlight.
Because they receive no direct sunshine, the Arctic (North Pole) and Antarctic (South Pole) are both chilly. Even at the height of summer, the Sun is low on the horizon. The Sun doesn't rise at all for several months during the winter since it is so deep below the horizon hence poles don't have equal amounts of sunlight and darkness.The poles receive less energy and heat from the sun because of the tilt of the earth and its orbit around the sun. There are just two polar seasons as a result: summer and winter.The tilt of the Earth's axis causes the Poles to experience around six months of day and six months of night. Due to this tilt, each Pole spends roughly six months angled both toward and away from the Sun. The North Pole experiences six months of nonstop daylight when it is inclined toward the Sun.In the winter, the Sun sets for extended periods of time since it is so deep below the horizon. Therefore, the days are chilly and dark, much like the nights. The South Pole and North Pole receive the same amount of sunshine despite being "polar opposites."learn more about poles here: https://brainly.com/question/1776073
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Answer:
B - The poles never get any direct sunlight. D - They both get the same amount of sunlight.
Explanation:
Hope this helps
/Written answers for these questions by 7/23?? will vote brainiest!! Just don't have a lot of time for this on top of my other classes :(
Pro tip: dont take 6 summer classes.
Cell division is the process by which a parent cell divides into daughter cells.
Why is cell division important?Cell division is important as it helps in the production of identical copies of cell. It also helps in repairing the damaged tissues or cells that are worn out.
The difference between mitosis and meiosis is that mitosis results in two identical daughter cells while meiosis results in four se-x cells.
Mitosis creates diploid daughter cells while meiosis creates haploid daughter cells.
Lastly, the four main phases of cell division include prophase, prometaphase, metaphase, anaphase, and telophase.
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Question:
1. Give two main reasons why cell division is important.
2. What is the difference between mitosis and meiosis.
3. List the four main phases of cell division during mitosis.
What does this graph tell you about the concentration of salt inside the cell?
The concentration of salt inside the cell was lower than the concentration of salt in the salt water, since the cell got much smaller in size due to water outward movement.
What is osmosis?Osmosis is the movement of water molecules through a semi-permeable membrane from regions of low solute concentration to regions of high solute concentration.
If salt concentration is higher inside the cell than outside, water will move into the cells. However, if the salt concentration outside the cell is higher, water will move out of the cells.
The cell became smaller, indicating that water moved out of the cell.
Thus, the salt concentration in the cell was lower inside the cell.
In conclusion, water moved out of the cell by osmosis.
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Why does climate change cause more intense hurricanes?
Less energy causes more storms.
Increased energy causes stronger storms.
Less energy causes less storms.
Increased energy causes weaker storms.
What are the impacts of that process of production
on the environment, on society and
on individuals?
Answer:
Lack of distinctive advantage in product performance and price.
Over estimation of the target market which may result in low demand.
Inability to utilize company strength to capture profitable opportunities.
Unpredictable change in consumers preference for goods and services.
Negative Effects of Production on Environment and Society. It leads to the pollution of the environment (environmental pollution) It leads to erosion as a result of big holes created by construction industries.
Explanation:
hope this helps you, sorry if it is not what you are looking for.
discuss four human action that can cause fire in home
Cooking fires, Portable heaters, Electrical Fires, Smoking and Candles are the human action that can cause fire in home.
Discuss four human action that can cause fire in home?Cooking fires are the leading cause of home fires. Portable heaters are also a big cause of home fires and home fire injuries because it catches fire very easily when it make contact with substances that easily catch fire. Electrical Fires, Smoking and Candles are also big cause of fire in home that is caused by human action.
So we can conclude that Cooking fires, Portable heaters, Electrical Fires, Smoking and Candles are the human action that can cause fire in home.
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. Which season is the Southern Hemisphere experiencing in the picture?
Answer: summer
Explanation:
What ocean floor feature is formed when two continental plates spread apart?
continental shelves
Deep sea trenches
Seamounts
mid-ocean ridges
1. Which amino acids changed between the three species? List four of them below, using the number of the amino acid.
Example: Amino acid 189 changed from valine to isoleucine in a warm adapted species.
1) _______________________________________________________________
2) _______________________________________________________________
3) _______________________________________________________________
4) _______________________________________________________________
2. What were the changes in the chemical properties of the R-groups? Use the amino-acid chart to in the Powerpoint file to answer this question.
Example: Both valine and isoleucine are nonpolar.
1) _______________________________________________________________
2) _______________________________________________________________
3) _______________________________________________________________
4) _______________________________________________________________
3. How might the changes that you identified affect the protein’s structure?
Example: The change would likely have no effect. Neither valine and isoleucine would promote hydrogen bonding with water, because their R groups are nonpolar and thus hydrophobic.
1) _______________________________________________________________
2) _______________________________________________________________
3) _______________________________________________________________
4) _______________________________________________________________
4. Assuming that the mutations are adaptive, how should the changes that you identified affect the stability of the protein at low and high temperatures?
The amino acids that changed between the three species are;
The changes in the chemical properties of the R-groups are given as:
Both valine and isoleucine are nonpolar.Both glycine and alanine are nonpolar.Glutamine is an uncharged polar group and Lysine is a charged polar group.Both glutamic acid and aspartic acid are charged polar group.How might the changes that you identified affect the protein’s structure?In scenario 1 and 2, the modifications would have zero effect.
In scenario 3, the polar groups are detected on the surface of the protein, thus, it is correct to state that both glutamine and lysine are polar and the modifications will have zero effect.
With regards to scenario 4, the change will have no impact, given that both glutamic acid and aspartic acids are R groups that are negatively charged.
Assuming that the mutations are adaptive, how should the changes that you identified affect the stability of the protein at low and high temperatures?These mutations are critical for protein's three-dimensional structure stability.
For example, due to the proteins from thermophilic creatures, they are able to live at high temperatures and survive at low temperatures.
This is because they frequently have a large network of salt bridges on their protein surface, which offers thermo-stability to these proteins and prevents denaturation owing to the high temperatures in the environment.
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Classify the following organisms as eubacteria, archebacteria, protists, fungi or other
A. Eubacteria coli
B. Plasmodium
C giardia lamblia
D. adenovirus
E. Methanogens
F. Lichen
G. Yeast
The correct class of the following organisms is as follows:
Eubacteria -:E coliProtist- PlasmodiumProtist- Giardia lambliaOther- adenovirus Archaebacteria - MethanogensFungi - LichenFungi- yeastWhat is a domain in biology?Domain refers to the highest rank in the classification of organisms, above kingdom.
The three-domain system are as follows:
EubacteriaArchaeaEukaryotaThe correct class of the following organisms is as follows:
Eubacteria -:E coliProtist- PlasmodiumProtist- Giardia lambliaOther- adenovirus Archaebacteria - MethanogensFungi - LichenFungi- yeastLearn more about domain at: https://brainly.com/question/24779457
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Propose a hypothesis in an attempt to find explanations for this curiosioty
I will leave your question unanswered. Thanks.
organism that must get energy from their environment are classified as?
Answer:
Heterotroph
Explanation:
Hi, According to what I understand, the term is heterotroph, not hetrotrop [Tropism is concerned with how organisms react to a certain stimulus]
The word "heterotrophy" refers to organisms that do not synthesis their food or carbohydrates in the presence of photosynthetic pigment using CO2, water, or solar energy. With the exception of Euglena, they cannot synthesis their food or carbohydrates (it is unicellular and contains photosynthetic pigment). Carnivores, herbivores, etc. are heterotrophs.
A mother who is heterozygous for Huntington’s disease and a father who is heterozygous for Huntington’s disease want to have a baby. What genotypes and phenotypes are possible for their child? Mom ____ x Dad ____ Write all of the genotypes and phenotypes from the above Punnett Square in the space below. Genotypes: Phenotypes: Fraction: Percent: _________ _________ ________ ________ _________ _________ ________ ________ _________ _________ ________ ________ Procedure: (Recessive Genetic Disorder) 9. Cystic fibrosis is a genetic disorder that is caused by a defective RECESSIVE gene that causes the CFTR protein to be dysfunctional. If a person has 1 or 2 dominant genes, they are normal. If a person has 2 recessive genes, they have the disease. When this protein works incorrectly, chloride is not moved properly in the cell and results in mucous in various organs to become unusually thick and sticky. CF is typically diagnosed in infancy, but even with modern medical advances, life expectancy is usually less than 30 years. 10. What letters will be used for the genotypes of Cystic Fibrosis? a. Normal: ____ b. Cystic Fibrosis: ____ 11. What genotype does someone have if they are homozygous normal?____ 12. What genotype does someone have if they are heterozygous normal? ____ 13. What genotype does someone have if they are homozygous for Cystic Fibrosis? ____ Complete the following Punnett Squares: Mom Dad
For a person to develop Huntington's disease, he must be homozygous (HH) or heterozygous (Hh) for the dominant allele.
What are the possible genotypes and phenotypes?Huntington’s disease is a type of defective dominant disease. This means that any person having 1 or 2 defective dominant genes, have the disorder. But, if a person has 2 recessive genes, they are normal.
Mom (Hh) x Dad (Hh)
H h
H HH Hh
h Hh hh
Genotypes: HH, Hh, hh (1:2:1)Phenotype: Huntington’s disease, Normal (3:1)Genotypic percent: 25% HH, 50% Hh, 25% hhPhenotypic percent: 75% Diseased, 25% normalCystic fibrosis is a type of a recessive disease i.e., a person having 1 or 2 dominant genes is normal. But a person having 2 mutated recessive genes are diseased.
Normal: CC, CcCystic fibrosis: ccHomozygous normal: CCHeterozygous normal: CcHomozygous cystic fibrosis: ccLearn more about Huntington's disease here:
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Do non-human primates have culture? Why or why not
Answer:
While nonhuman primates don't have obvious cultural traditions the same way humans do, such as variation in their clothing or adding extra spice to their food, primatologists have nonetheless identified behavioral practices that vary between communities and which are transmitted through social learning
Explanation:
hope it helps you and give me a brainliest
Energy is stored in biological molecules like carbohydrates, lipids and nucleic acids (ATP).
Describe how different forms of energy are converted at least three different ways in an autotroph.
ATP can be hydrolyzed to ADP and Pi by the addition of water, releasing energy. ADP can be "recharged" to form ATP by adding energy, combining with Pi in a process that releases a water molecule.
Where the energy of ATP?As energy is released, they form ATPs, binding phosphate to ADP. So the energy is in ATP. The process of binding phosphate to ADP is called oxidative phosphorylation.
There are three common energy-producing processes for making ATP:
The ATP-CP system, or phosphagen;Anaerobic glycolysis, or lactic acid system;The oxygen system.See more about ATP at brainly.com/question/14637256
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NEED ANSWER ASAP The presence of a large population of water lice in a water source indicates what about its pollution levels?
A. Organic pollution is moderate but declining. Oxygen levels are just beginning to increase.
B. Oxygen is plentiful, organic pollution is nearly absent.
C. Organic pollution is very high and oxygen has been depleted.
D. Oxygen levels are moderate, organic pollution is present but low.
The presence of a large population of water lice in a water source indicates that organic pollution is moderate but declining. Oxygen levels are just beginning to increase (option A).
What are indicator species?
Indicator species are living organisms that tells us about the pollution status of our environment (water, air, land) by being absent or present.
Examples of indicator species are as follows;
Water louse
Lichen
According to this question, there is an abundance of large population of water lice in a water body.
This could indicate that organic pollution is moderate but declining and oxygen levels are just beginning to increase because water lice are known to thrive in water bodies with moderate pollution.
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In order to facilitate reproduction, independent of cell division, both of chloroplasts and mitochondria have _________________________ and _________________________.
Answer:
In order to facilitate reproduction, independent of cell division, both of chloroplasts and mitochondria have DNA and ribosomes.
Name the labeled structure
If the DNA sequence is CCAATTGA, what is the compliment?
GGTTAACT is the complement of DNA sequence CCAATTGA.
What is a complement sequence of DNA?A sequence of bases in a nucleic acid called a complementary sequence can be used to match base pairs to create a double-stranded structure. For instance, G-T-A-C is the complementary sequence to C-A-T-G, where each letter represents a different DNA nucleotide.
Every DNA sequence has a counterpart sequence running in parallel since DNA has two strands. Adenine (A) is always coupled with Thymine (T) in the complementary sequence, while Cytosine (C) is always paired with Guanine (G).
Natural complementary DNA plays a crucial role in the production of new DNA copies and has emerged as a key experimental tool. The two strands of DNA are unraveled from one another during replication. Each strand is replicated twice, one by a DNA polymerase molecule that runs the length of each strand.
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A pea plant purebred to produce round yellow peas is crossed with a plant purebred to produce wrinkled green peas. Round pea shape is dominant to wrinkled, and yellow pea color is dominant to green. Members of the resulting F1 generation are then crossed to produce an F2 generation, as shown in the figure. On average, what fraction of the F2 generation will display both dominant traits?
(ANSWER ONLY IF YOU ARE SURE PLEASE NO GUESSING THANK YOU)
A)
4 out of 16 plants will display both dominant traits.
B)
9 out of 16 plants will display both dominant traits.
C)
16 out of 16 plants will display both dominant traits.
D)
12 out of 16 plants will display both dominant traits.
The fraction of the F2 generation that will display dominant traits will be 9/16. The correct option is B.
Dihybrid crossLet us assume that pea shape is represented by A (a) while color is represented by B(b).
Purebred round yellow peas = AABB
Purebred wrinkled green peas = aabb
F1: AABB x aabb
all AaBb
F2: AaBb x AaBb
A_B_ = 9/16
A_bb = 3/16
aaB_ = 3/16
aabb = 1/16
Thus, the fraction of the F2 offspring with both dominant traits. A_B_, is 9/16.
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5. The petroleum industry uses 1% of the available fresh water in
Alberta for oilfield injection, while farmers use 47% for irrigation. Why are many citizens opposed to the use of water by the petroleum industry but are not concerned with the use of water for irrigation?
A. The petroleum industry has lots of money.
B. Food produced by irrigation is more vital than the oil produced by the petroleum industry.
C. Water used by the petroleum industry is injected deep
underground and does not return to the hydrological cycle.
D. Farming is more important to the province than the petroleum
industry is.
Water used by the petroleum industry is injected deep underground and does not return to the hydrological cycle. The correct option is C.
Water and petroleum industriesMost of the water used in oil extraction is not returned to the hydrological cycle.
In actual fact, some percentage of the water used in extracting crude oil tends to be a source of pollutants to the freshwater reservoir in the environment.
With irrigation farming, this is not the case. Thus, many citizens will oppose the use of water by the petroleum industry but not irrigation farming.
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.
Based on the punnet square above, what is the probability that an offspring from this cross will have a homozygous recessive genotype ?
A. 100%
B. 50%
C. 25%
D. 0%
Answer:
C)25%
Explanation:
the results of the punnet square are:
1. TT (homozygous dom)
2. Tt (heterozygous)
3. Tt (heterozygous)
4. tt (homozygous recessive)
capital letters are dominant and lowercase are recessive
Answer:
25%Explanation:
Homozygous Recessive: (homo means same) Both letters representing the genes are the same, and they are recessive (lowercase t)
Each box within a punnett square represents a 25% chance possible outcome.
There is only one box in this punnett square wherein both letters are lowercase t.
How we save water during watering plants
Answer:
1. Don't water plants if it's raining.
2. Be careful not to use too much water or spill.
Explanation:
Brainliest, please :)
Which of the following best describes how a biotic factor can limit the population growth in a species?
A) A sudden drop in temperature causes nearly half of the species' population to die.
B) Disease leads to a decline in the reproductive rate of the species' main predator.
C) Lack of rainfall over a long period of time forces the species to migrate to a new location.
Answer: B) Disease leads to a decline in the reproductive rate of the species' main predator.
Explanation: Disease is a biotic factor and A and C are not :)
Answer:
B
Explanation:
B) Disease leads to a decline in the reproductive rate of the species' main predator.
Which two seasons is Earth experiencing at positions "A" and "C" in its orbit around the Sun?
winter and summer
spring and summer
spring and autumn
winter and autumin
Answer: Spring and autum
Explanation: got it right on my test