Final answer:
Primitive traits are typical of broader clades as they are inherited from a distant ancestor and are shared among a large group of organisms, whereas derived traits are characteristic of smaller clades and indicate more recent evolutionary changes.
Explanation:
Primitive traits, also known as plesiomorphic traits, are typical of broader clades because these traits were present in distant ancestors. These traits persist over large groups of organisms that descend from a common ancestor. For instance, all mammals possess body hair because they share a common ancestor that exhibited this feature, making it a primitive trait within the clade of mammals. In contrast, derived traits, or apomorphic traits, are indicative of smaller clades as they represent changes that occurred after the clade diverged from other lineages. For example, the trait of walking on two legs is considered a derived trait in humans as it developed after our lineage split from other primates.
It is important to recognize that the classification of a trait as primitive or derived is relative and can vary depending on the taxa being compared. Additionally, when a lineage splits into two, it is common for one to retain more of the ancestral traits, while the other develops more derived traits. Understanding these traits helps us reconstruct evolutionary relationships and determine how closely related different species are within the clades they belong to.
Why is a symptomless STI just as dangerous as an STI that exhibits symptoms? Explain your answer.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
*4-5 COMPLETE SENTENCES
*NO COPYING
*ANY LESS THAN WHAT IS ASKED, WILL BE REPORTED.
Answer:
Multicellular
Eukaryotic
Heterotrophs
Explanation:
Both cells of fungi and animals are eukaryotic meaning they have nucleus and organelles. They are multicellular organisms (meaning they are composed of many cells). Their cells are also heterotrophic meaning they depend on organic molecules for energy as opposed to plants that can make their food from abiotic factors. Fungi, however, digest their molecules extracellularly while animals do it intracellularly.
What happens to the water particles in a wave?
The wave pushes the water particles forward.
The water particles move in a circular pattern.
The wind pushes the water particles down.
The water particles move up through the wave.
The water particles move in a circular pattern in a wave. Hence, the correct option is B.
What is a water wave?Water waves are the surface waves that are a combination of both longitudinal and transverse wave.
During the distortion, the water particles remain in the same position as they propagate with the same wave. They are formed by the interaction between the sun, moon, and the earth. They are also very important in nature, the wind moving above the water surface are also responsible for the formation of water waves.
There are basically three types of water waves: sea waves of seismic origin (tsunamis), swell waves, and wind surges. Hence, the correct option is B.
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It would take one light year to travel to the sun. True False
explain 3 ways that your body can defend itself against pathogens
what does a plant do with oxygen, the end result of photsynthesis
A. Sends it into the dirt
B. Breathes it into its lungs
C. Releases it that Animals(including humans) can live
D. Turn it into sunlight
11. What are the steps involved in DNA replication?
a. Replication begins when the DNA double helix ___.
b. The nitrogenous base pairs pull apart from each other at a ____, exposing the two strands.
c. As the double helix continues to open, new nitrogenous ____ are added on both sides.
Final answer:
The steps involved in DNA replication include the unwinding of the DNA helix, separation of base pairs by DNA Helicase at the replication fork, and the addition of new nitrogenous bases to form complementary strands.
Explanation:
The process of DNA replication is essential for cell division and involves several key steps:
Replication begins when the DNA helix unwinds at the origin of replication.The enzyme DNA Helicase breaks the hydrogen bonds between the nitrogenous base pairs which form at a replication fork, exposing the two single strands.As the double helix continues to open, single-strand binding proteins coat the DNA to prevent rewinding. New nitrogenous bases are added to the exposed strands by the enzyme DNA polymerase, according to the base pairing rules (A with T, and G with C).Which of these best describes the material inside Earth's mantle? Remains stationary Moves in a circular motion Rises up but does not sink down Sinks down but does not rise up
A location in the northern hemisphere is currently experiencing the longest day. It is a day with more hours of sunlight than darkness. Which of the following could be the current month?
April
December
June
May
A location in the northern hemisphere is currently experiencing the longest day. It is a day with more hours of sunlight than darkness.
Which of the following could be the current month?
JUNE
Answer:
June has the longest day in northern hemisphere.
Explanation:
As Earth rotates on its axis which is tilted by 22.44° on its axis due to which the northern hemisphere receives more direct sunlight between March and September due to which northern hemisphere experiences longer days i.e more hours of sunlight. On 21 June the duration of the hours of sunlight received by the northern hemisphere is maximum. This is also known as Summer solstice .
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What is most likely evidence of an energy transformation taking place when a hot plate that has a beaker containing solid wax placed on it is turned on
Answer:
melting point and heat transfer
Answer: A - "Wax starts melting as kinetic energy is transformed into thermal energy"
Explanation:
I took the test
A forest fire destroyed large tracts of forest in California.however, within a few years , the forest regenerated and will soon return to its original state . What is the reason the forest is able to regenerate?
To conserve body heat, vasoconstriction restricts blood flow to the periphery but not to the body’s core. Explain how this is an adaptation for survival
Vasoconstriction is a survival adaptation because restricting blood flow to your "periphery" allows more warm blood to be pumped to your vital organs, keeping them alive.
What is vasoconstriction?Vasoconstriction is the shrinking (constriction) of blood vessels engendered by the contraction of small muscles in their walls.
Blood flow is slowed or blocked when blood vessels constrict. Vasoconstriction can range from mild to severe. It can be caused by disease, drugs, or psychological conditions.
Vasoconstriction is required to maintain healthy blood flow and prevent your body from becoming too cold. It can also be used to raise blood pressure when necessary.
Some medications cause vasoconstriction by mimicking your body's natural signals. This could save your life.
Vasoconstriction is a sustenance adaptation because it allows more warm blood to be circulated to your vital organs, keeping them alive.
Thus, this way this is an adaptation to survival.
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Which of these is the direct result of an error in the transcription of a DNA nucleotide?
The right answer is A codon sequence is incorrect.
Biologists have compared the corresponding DNA and RNA sequences in B cells (white blood cells), the material being provided by various ongoing sequencing projects. They identified more than 10,000 sites where the two molecules differ, with about 40 percent of the genes having at least one transcription error. This error can be found at the level of the codons of the amino acids, which implies a change of one amino acid by another.
The result of an error in the transcription of a DNA nucleotide is a codon sequence is incorrect.
Transcription:
It is the process in which DNA code is converted to the mRNA code. 3 nucleotide combination code for an amino acid.If there is an error in the in the transcription result in defect in codons. and this result defective proteins.So, the result of an error in the transcription of a DNA nucleotide is a codon sequence is incorrect.
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Look at the diagram above of a marine food web. What might happen to this ecosystem if the non-native populations of smelt and alewife increase greatly?
Question 1 options:
1.The smelt will eat the alewife.
2.The salmon will starve.
3.The smelt and alewife may out-compete the native fish by consuming all of the zooplankton.
4.Nothing should happen to this ecosystem if the populations of smelt and alewife increase greatly.
https://learning.k12.com/content/enforced/355549-COF_ID90293/native%20and%20nonnative%20species%20diagram.JPG?_&d2lSessionVal=rxl7Rt97bvS7kurIszdj3PvgN
A person who is interested in learning more about the "fight or flight" response may pursue a career in
endocrinology
gene therapy
microbiology
sports medicine
Answer:
The correct answer would be endocrinology.
The fight and flight response are stress response generated or regulated by hormones such as epinephrine and norepinephrine which are released from the adrenal gland.
Other hormones like testosterone, estrogen, and cortisol and neurotransmitters such as dopamine and serotonin also affect the organism's response to stress.
Thus, endocrinology would be the best career in order to learn more about these responses as endocrinology refers to the branch of science which deals with the endocrine system, hormones, and associated diseases.
Which is the correct order the organisms would appear during primary succession?
Question 3 options:
Lichens, bushes and shrubs, grasses and annual flowers, trees, mosses
Bushes and shrubs, mosses, lichens, grasses and annual flowers, trees
Mosses, trees, lichens, grasses and annual flowers, bushes and shrubs
Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees
The correct order for primary succession is lichens, mosses, grasses and annual flowers, bushes and shrubs, trees.
The correct order of organisms during primary succession follows a predictable sequence, starting from the colonization of barren land or rock by pioneer species to the establishment of more complex plant communities. Let's break down the options provided and identify the correct order:
1. Lichens, bushes and shrubs, grasses and annual flowers, trees, mosses:
This sequence starts with lichens, which is accurate as lichens are among the first organisms to colonize barren environments. However, it then jumps to bushes and shrubs, which typically come later in succession. Grasses and annual flowers generally establish themselves before trees. Finally, mosses usually appear before trees in primary succession. So, this sequence is not entirely accurate.
2. Bushes and shrubs, mosses, lichens, grasses and annual flowers, trees:
This order begins with bushes and shrubs, which are typically later successional species. Mosses come before lichens in primary succession, and grasses and annual flowers usually precede trees. Therefore, this sequence is also incorrect.
3. Mosses, trees, lichens, grasses and annual flowers, bushes and shrubs:
This sequence starts with mosses, which is accurate as they are early colonizers. However, trees generally come after grasses and annual flowers in primary succession. Lichens typically precede grasses and annual flowers as well. So, this order is not correct.
4. Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees:
This sequence begins with lichens, which is accurate as they are primary colonizers. Mosses usually follow lichens, making this part of the sequence correct. Grasses and annual flowers come before bushes and shrubs, which is accurate. Finally, trees typically represent the climax stage of primary succession, making this order correct.
Therefore, the correct order is Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees.
A star in a distant galaxy is 97 trillion km from earth.How many years would it take light to get from the star to earth?
the energy role of a grizzly bear is that of a {n} ------because it cannot make its own food
Answer:
The answer is Consumer just took the test Hope this helps! Have a great day!
why do phospholipids form a bilayer in water?
Answer:
Phospholipids form a bilayer in water because lipid consists of hydrophillic and hydrophobic regions.
Explanation:
Lipid is known as amphipathic molecule because lipids has hydrophillic head and hydrophobic tail regions. The lipid molecules can rearrange themselves when they are dissolved in water.
Lipids when dissolve in water, the hydrophillic (water- loving) head interact with water whereas hydrophobic( water- hating) moves away from the water. This, makes the bilayer in water.
Evaluate the following scenario: Two days after visiting a pet shop and observing green parrots in a dis- play cage and fish in an aquarium, a student developed a fever, became quite ill, and was diagnosed with parrot fever. What might be the dis- ease reservoir and possible transmis- sion method?
The student most likely got parrot fever from inhaling aerosolized bird droppings or secretions from green parrots, which served as the disease reservoir. This transmission method is typical for zoonotic diseases. Proper handling and hygiene can help prevent the spread of such infections.
The student likely contracted parrot fever (psittacosis), a zoonotic disease caused by the bacteria Chlamydia psittaci, which can be transmitted from birds to humans.
The disease reservoir in this scenario is the green parrots observed at the pet shop. The probable transmission method is through inhalation of aerosolized bird droppings or secretions that contain the bacteria.
Parrot fever typically presents with flu-like symptoms, including fever, headache, and respiratory issues. It's important to handle birds with care and ensure good hygiene to prevent the spread of zoonotic diseases like these.
Orographic lifting is associated with _____.
Orographic lifting is associated with the mountains because it serves as blocks to the current of air, pushing the air to ascend.
Orographic lift happens when an air core is driven from a low elevation to a higher elevation as it passes over growing terrain. As the air mass gains height when it quickly freezes down adiabatically, which can increase the comparative humidity to 100% and produce clouds and, under the right circumstances, precipitation.
Orographic lifting is associated with topographic barrier such as a mountain or a hill.
A topographic barrier refers to a physical feature in the landscape that obstructs the flow of air or water. It can be a natural element such as a mountain, hill, ridge, or plateau. Topographic barriers have an impact on weather patterns and the movement of air masses.
As air approaches a mountain or elevated terrain, it is forced to ascend along the slope. As the air rises, it cools, leading to condensation and the formation of clouds. Orographic lifting can result in the development of orographic clouds, precipitation, and other weather phenomena on the windward side of the mountain. On the leeward side, the air descends and can create a rain shadow effect, where drier conditions prevail due to the loss of moisture during the ascent. Orographic lifting plays a significant role in shaping local weather patterns and can result in variations in precipitation and climate across different sides of a mountain range.
Therefore, the given blank is filled by mountain or hill.
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Which of the following steps is not likely to take place during cellular respiration?
Answer choices
A. Oxygen combines with carbon of simple sugar
B. Energy molecule transfers energy to cells
C. Simple sugar breakdown
D.Energy is used up
In a reflex arc, a motor neuron sends a signal that causes a response in the
spores of the first known terrestrial plants have been found in what strata
I NEED A ANSWER
Non-motile Cells have a nucleus Multicellular Living Reproduces sexually What Kingdom is being described by the above characteristics?
A) Kingdom Animalia
B) Kingdom Plantae
C) Kingdom Protista
D) Not enough information given
Answer:
B\
Explanation:
Why is soil important for terrestrial ecosystem?
What is a light year?
a. A measure of time in space
b.The distance light travels in a year
c.The distance to Alpha Centauri
d.A term used only in science fiction
From which graph below would you conclude that velocity decreases directly with time?
Answer:
its z
Explanation:
i got it right
what do solid fats have a high protein of
Some common environmental factors influencing pregnancy include all of the following EXCEPT:
Answer:
B
Explanation: