Answer:
What in the world is this...
Answer: ❤️❤️❤️❤️❤️❤️❤️❤️
Explanation: yeah i need points thx a lot g
Which of the following pairs represent homologous structures?
Complete question:
Which of the following pairs represent homologous structures?
Wings of grasshopper and forelimbs of flying squirrel Tentacles of Hydra and arms of starfish Forelimbs of a bat and forelegs of a horse Wings of a bird and wings of a mothAnswer:
3. Forelimbs of a bat and forelegs of a horse
Explanation:
Homologous characters are structures with the same basic elements. Their position in the body and the relations with adjacent structures are also the same in different organisms, and they even share the same embryological development.
These structures might show variations between the organisms exhibiting them. Variations might be related to their function and to the environment in which the organism lives. The function they accomplish is not necessarily the same in all the organisms involved.
These homologous characters are present in organisms related that share a common ancestor.
For example, whales, humans, and cats all have the same bones in the same order, but they matured differently in later embryological development.
Among the options, the only possible pair that represents homologous characters is option 3. Forelimbs of a bat and forelegs of a horse. Both structures are the anterior extremities of the animals and share the same bones, even though they might differ in the development degree. Forelimbs and forelegs have the same position and relation with other structures in the body, and embryologically, they are the same.
Which of these body systems has cells that attach to each other to form a leak-proof barrier?
Select one:
Urinary system.
Reproductive system.
Respiratory system.
Endocrine system.
Answer:
Epithelial cells are tightly packed, and this lets them act as barriers to the movement of fluids and potentially harmful microbes. Often, the cells are joined by specialized junctions that hold them tightly together to reduce leaks.
Explanation:
Wetlands and estuaries purify water and filter out...
A dead organisms
B salt
C pollution
D waste products
Answer:
C. Pollution
Explanation:
Wetlands and estuaries purify water and filter out pollutants.
In order for a trait to be considered a competitive advantage, the trait must(1 point)
allow the individual to utilize fewer food and water resources to survive.
allow the individual to have fewer diseases and not get sick.
allow the individual to be stronger and outcompete others.
allow the individual to survive better and reproduce more in that environment.
Why are hooves more advantageous for horses in the modern era?(1 point)
Hooves are better equipped for environments with plains.
Hooves are better suited with environments with wetter climates.
Hooves are better suited for environments with a wider range of vegetation.
Hooves are better suited for environments with plenty of trees.
Imagine a major volcanic eruption has dramatically changed the environment on an island such that the average temperature and available sunlight are much lower. Of the following species present on that island, which species is most likely to adapt and evolve to this change instead of going extinct?(1 point)
a large mammal species with a low reproduction rate and specific food needs.
a bird species with specific nesting requirements that only feeds on one type of seed.
a reptile species with a high reproduction rate and very similar individuals.
an insect species with a high reproduction rates and a significant mutation rate
Of the four factors that affect the evolution of species, which factor is driven by random events?(1 point)
Speciation
Competitive advantage
Genetic variation
Differential survival and reproduction
Which factor will most likely guarantee evolution rather than extinction?(1 point)
larger animal sizes
changes in available food sources
changes in the environment
higher reproduction rates
Answer:
Did you ever get the answers?
Explanation:
Any trait that is to be considered as a competitive advantage, trait must allow the individual to survive better and reproduce more in that environment.
What is evolution?
Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. It is decent with modification from preexisting species.
The trait that has the ability of relative fitness which means relative survival and relative reproduction shall be considered as more competitive. Both of these, criteria possess a competitive advantage.
Hooves are more advantageous for horses in the modern era because hooves are better suited for environments with a wider range of vegetation. Hooves help horses run farther and faster on the open prairies, helping them flee from predators and find fresh grass for grazing.
The species which is most likely to adapt and evolve to this change is an insect species with high reproduction rates and a significant mutation rate. This is because insect belongs to r-selected species that have fewer chances of extinction as compared to k-selection species.
The factor which is driven by random events is Genetic variations.
The factor which is most likely guarantee evolution rather than extinction is higher reproduction rates. Because a higher reproduction rate is a characteristic of r-selected species.
Therefore, the option which is correct for each specific question is briefly described.
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5'-AUGGGUAACGGCGUG-3' is an mRNA sequence.
After translation, how many amino acids would this sequence contain in the protein?
Answer:
3???
Explanation:
pleasssseeeee helppppppppp
Answer:
Primary Succession
Pioneer species are lichen/mossSuccession begins on rockTakes more time to reach a climax communityVolcanic eruptions, Sandstorms, or Glaciers retreatingSecondary Succession
Pioneer species are grassesSuccession begins on soilTakes less time to reach a climax communityClearing land or forest firesmitosis and meiosis are different types of cell division? Which of the following events occurs Only during the process of meiosis?
Answer:
True; C: chromatid formation
Explanation:
Which statement correctly describes the flow of energy in photosynthesis?
Answer:
DPhotosynthesis stores energy because energy is released when glucose is formed from carbon dioxide and water. The passage describes a condition that is inherited.
Energy from the Sun flows into plants through photosynthesis, which is also known as “putting together with light,” and eventually into humankind. In the end, humans are powered by the Sun's energy to eat and survive. Thus, option D is correct.
What describes the flow of energy in photosynthesis?Solar energy is converted into chemical energy during photosynthesis, which produces glucose from water and carbon dioxide. The by-product is the emission of oxygen. In the process of breaking down glucose during cellular respiration, oxygen is consumed, which also produces heat and chemical energy.
Photosynthesis is the tremendous energy flow that underlies electricity and is the foundation of all life. Whether we are vegetarians or not, we joyfully devour our food without giving the basic mechanism that provides us with this gift even the least thought.
Therefore, Because energy is released when glucose is created from carbon dioxide and water, photosynthesis saves energy. The paragraph mentions a hereditary ailment.
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PLEASE HELP WILL GIVE BRAINLIEST
Which reaction would be most changed if the plant did not have access to the sun?
a. None of the reactions would be affected
b. H reaction would stop
c. G reaction would stop
d. Both reactions would immediately be stopped
Answer:
d
Explanation:
photosynthesis requires energy from the sun to produce glucose and oxygen
Why will individuals have brown eyes rather than a blue eyes?
Answer:
because of the parent's genes
Explanation:
In what form is energy stored in muscles
Why are time zones necessary?
A. Seasonal changes due to the revolution of the Earth around
the Sun requires the need for time differences.
B. Moon phases cycle every 28 days but vary according to
your location.
C. The rotation of the Earth causes the Sun to rise earlier in
the eastern United States.
D. The Earth's orbital motion can easily change.
Answer:
C
Explanation:
Q1: what is sleet?
Q2: how big can raindrops get?
Q1. It is a form of precipitation that consists of ice pellets often mixed with rain or snow. it is usually soft and contains some traces of ice. It can be dangerous to drive with this on the road.
Q2: They can get as big as 4 millimeters. rain drops don't usually get any bigger without seperating into two droplets.
Explanation:
(I hope this helps! Have a great day!)
As much as 25% of the fruits and vegetables grown in Chinese agricultural
regions rot before they can be brought to market. Which of these approaches
is a possible solution?
A. More-efficient preservation methods
B. A reduction in irrigation
C. Planting more seeds
D. Less-efficient ways of farming
Answer:
A.More-efficient preservation methods
Which of the following describes the Koppen-Geiger climate Cfa?
humid subtropical
odyssey-ware. plant systems. i hate this class. good luck
PLEASE HELP MEEE I NEED HELP ON THIS QUESTION
Answer:
C. Spore formation
Explanation:
Option C above is the correct answer.
Spore formation is actually a method of asexual reproduction. Fungi actually reproduce asexually via spore formation. Some examples of organisms that reproduce via spore formation are Rhizopus, mushroom, mucor, etc.
The spores are usually stored in sacs which are known as sporangia. When there is a bursting of the sac, spores that are single-celled, thick and thin walled are obtained/formed. The spores are usually resistant to environmental conditions.
Testosterone does which of the following?
OA. Develops accessory sex organs.
ОВ.
AIDS in spermatogenesis.
OC. Controls sex drive.
OD
All of the above
Select the correct answer.
Which is an example of dehydration synthesis?
A. DNA synthesis from nucleotides
B. conversion of proteins into its amino acids
C. conversion of lipids into fatty acids
What converts sound waves to electrical impulses in the nervous system?
Oval window
Pinna
Cochlea
Tympanic membrane
Where are the organs associated with balance located?
The brain
The heart
The ear
The stomach
What type of muscle typically forms a lining for various organs?
Rough muscle
Smooth muscle
Cardiac muscle
Skeletal muscle
What are the body's two systems of internal communication?
Digestive and Endocrine systems
Nervous and Respiratory system
Respiratory and Endocrine systems
Endocrine and Nervous systems
Answer:
2.the inner ear 3. the smooth muscle and the skeleton muscle.
Discuss the relationship of carbon dioxide and oxygen. Explain how it remains Balanced. What has man done to upset this natural relationship?
Answer: Power plants
Explanation: They release the waste from it into the air
Answer:
Explanation: the primary function of the respiratory system is to take in oxygen and eliminate carbon dioxide
Which of the following refers to the diversity of available genes within a population?
A)
demographics
B)
genetic variety
C)
gene pool
D)
population distribution
E)
tolerance range
Gus drew a diagram to compare marsupial and placental mammals
which label belongs in the area marked Y?
a) have a two-week gestation period
b) young develop inside body
c) sometimes lay eggs
d) are endotherms
please help fast, thank you!
Answer:
A
Explanation:
What is visible light? Give an example and explain how the example works.
Please accurately define each term and explain the role of each term in the scenario below Phillip has been preparing to give the valedictorian speech at his high school since mid-February. He has a fear of public speaking that began in elementary school when he forgot a speech when he was running for student council president. He has been working with the drama teacher at the school to overcome this fear. As graduation approaches, he has started to have difficulty sleeping and has lost his appetite. He has worked hard to earn the opportunity and does think his message of finding his way as a child of immigrants and divorce is important. Still he is beginning to question whether or not he will be able to present the speech in front of such a large crowd. He has spoken to his guidance counselor about his concerns. Explain how each of the following concepts relates to the scenario:
. Phobia .
Sympathetic nervous system
• Intrinsic motivation
• Positive reinforcement
• Extraversion
• Altruism Elaborative rehearsal
Answer:
See explanation below
Explanation:
Phobia: Phobia refers to an extreme and irrational fear of something. It can also be an aversion to something. Philip has a fear of public speaking that began when he forgot a speech in elementary school.
Sympathetic Nervous System: This is one of the response to stressful situations. It is activated by the hypothalamus due to both physical and psychological stress. It directs the body’s rapid involuntary response to dangerous or stressful situations. As graduation approaches, Philip starts to have difficulty sleeping and loss of appetite.
Intrinsic Motivation: This refers to doing something just because it is enjoyable rather than for any external reward. Prior to the graduation, Philip has been working with his drama teacher to help him overcome his fear of public speaking.
Positive Reinforcement: This is a form of reward for performing a task. People can also seek positive reinforcement before they perform an action just so that they perform well. Philip tried to get reinforcement his guidance counselor before his presentation.
Extroversion: This is the inclination to obtain gratification from outside oneself. By questioning whether he would be able to present his speech and impress a large crowd, Philip is trying to obtain gratification from others.
Altruism: This refers to a selfless concern for the happiness and well-being of others. Philip is concerned about how his message would impact others who may be able to learn from his journey of being a child of divorce and immigration.
Elaborating Rehearsal: This is done by helping ones short term memory to store information in ones long term memory. Philip has been preparing to give the valedictorian speech at his high school.
The disadvantage of batch fermentations, as opposed to continuous feed systems, is that
Select one:
a. new substrate must be added to the fermentor continuously for the fermentation to continue.
b. there is a limit to the amount of product formed since all materials are added to the fermentor at the beginning.
c. it is small scale production of a product.
d. the end product is not as pure as the product made by the continuous feed process.
Answer:
according to me may be option number b
how might a sudden rise in CO2 in the blood affect the gas exchange process ?
Answer:
process is faster
Explanation:
when CO2 accumulates in the blood it causes homeostatic imbalance eg it causes a fall in blood pH therefore gaseous exchange takes place faster to rid the body of this gas maintaining balance in the body
HELP ASAP
How did the environment affect the populations of peppered moths in the 1800s in
London?
Because of the soot covering everything, the dirtier darker moths will be eaten
less often, allowing them to reproduce and pass their genes on to the next
generation.
Because of the soot covering everything, the lighter colored moths will be eaten
less often, allowing them to reproduce and pass their genes on to the next
generation.
The environment did not affect the peppered moths-- the populations are still
the same.
Answer:
??????????????????????????????????
Explanation:
What animals have been dominant in the Cenozoic era
Explanation:
Cave lions, sabre-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths were prevailing species of the Quaternary period. Without the dinosaurs, plant life had an opportunity to flourish during the Cenozoic era.
The Quaternary period was dominated by cave lions, saber-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths. Plant life had a chance to thrive during the Cenozoic era without the dinosaurs.
What are the characteristics of Cenozoic era?From the Cenozoic period nearly 66 million years ago to the present day, life is considered recent.
Plants and animals look the one most like they do today during this time period.
The Cenozoic Era is divided into even smaller periods known as Epochs, so there will be even more guideposts in this Era.
Because of the extinction of many groups of giant mammals during the Cenozoic era, smaller species were able to thrive and diversify because their predators no longer existed.
Thus, big cats, saber-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths monopolized the Quaternary period.
Plant life had a chance to thrive without the dinosaurs during the Cenozoic era.
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explain how mammalian skin adapted to its function
Answer:
IDONT KNOW
Explanation:
SRY
In what way does cultural understanding influence health?
O A. Some groups are less likely to know how diseases are spread.
O B. Some cultures may not know that a certain food is bad for a
person's health
O C. Different cultures have varying knowledge about what diseases
can be cured.
O D. All of the above
D. All of the above way does cultural understanding influence health
Why is it crucial to healthcare that we understand culture?Respect for cultural diversity is advantageous to customers, stakeholders, and communities and promotes good health outcomes. Cultural respect is also essential for obtaining accuracy in medical research since many factors, including behaviours, language, norms, beliefs, and viewpoints, can affect health communication.
Cultural health beliefs have an impact on how individuals perceive their health and health issues, when and from whom they seek medical attention, and how they react to advice for a change in lifestyle, medical treatments, and treatment compliance.
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