Vestigial structures, such as hip bones in whales and appendixes
in humans, are those that have little or no function for the
organism. What is the most likely reason for this loss of function
over time?
The organism is undergoing speciation.
The organism is experiencing genetic drift.
The structure was over utilized by the organism.
The structure was not highly beneficial to the organism.
Answers
Answer:
A.
Explanation:
Humans used to use the appendix for good bacterial health in the gut. People used to drink dirty water and eat food that had lots of bacteria. The appendix would save them from infection.
Related Questions
1pt Which of the following life processes is not necessary for an individual organism to survive, but is necessary for the survival of the species?
A. digestion
B. respiration
C. regulation
D. reproduction
Answers
Answer:
D. reproduction
Explanation:
If the species doesn't reproduce they die out or become extinct.
Why are offshore wind farms more suitable than those situated on land?
O A. The oceans offer more open space to set up wind farms.
OB. The winds from the ocean are cooler than those blowing over land.
OC. Wind speeds over the ocean are higher than those over land.
D.
There is more wind over the oceans than there is over land.
E. Moisture-laden winds from the ocean are more suited than dry winds that blow over land.
Reset
Next
Answers
Answer:
C
Explanation:
What is the purpose of the ATP and NADPH produced in the light reactions of photosynthesis?
A. to transfer light energy to excited electrons
B. to stop the electron transport chain
C. to act as carrier proteins in inner mitochondrial membranes
D. to transfer energy to compounds forming three carbon sugars
Answers
Explanation: ATP and NADPH are produced in the light reactions by
when energy absorbed from the sun is conserved as ATP and NADPH. ATP and NADPH generated in the light reactions of photosynthesis are used to synthesize carbohydrates from carbon dioxide and water. The ATP and NADPH are used to reduce CO2 to triose phosphate which can be used to produce glucose. Green plants contain unique enzymatic machinery in their Chloroplasts which catalyzes the conversion of carbon dioxide to simple organic compounds in a process known as CO2 assimilation or carbon fixation. In this carbon fixation reactions, ATP and NADPH is used to drive the incorporation of carbon dioxide into ribulose 1,5-bisphosphate to produce glyceraldehyde 3-phosphate (a 3-carbon sugar) in a series of enzyme catalyzed reactions.
What are cilia?
A. false feet
B. skinny tails
C. hairlike projections
D. temporary extensions
Answers
Answer:
c. hairlike projections
Explanation:
it sweeps mucous and dirt out if our lungs.
Hope this helps :)
(01.01 MC)
An idea is being proposed. The steps that led to the idea are listed below:
Only the favorable evidence were considered.
There was a review by the scientific community.
The outcomes were same each time.
Can this idea be scientific?
Yes, because the idea produced reliable results.
No, because it was not reviewed by family and friends.
Yes, because all steps of the scientific method were followed.
No, because conflicting evidence and arguments were not considered.
Answers
No, because conflicting evidence and arguments were not considered.
Give the person brainliest. i mean ik this was over a year ago but if u see dis, u can now give the person brainliest.
write a paragraph to show your knowledge about diabetes that include the following terms:
Glucose, Glucagon, Pancreas, Negative Feedback, Homeostasis, and Liver
Answers
Answer:
Glucose is a simple sugar molecule that helps play a role in high/low blood sugar levels. If your blood level is too low Glucagon is released to increase your blood sugar and if it’s too high Insulin is secreted to lower blood sugar; both Insulin and Glucagon are hormones.This being said these two hormones are secreted by the pancreas. Both of these two hormones are examples of negative feedback leading to a stability In homeostasis. It is regulated by the liver, however if homeostasis is disrupted the body will stop functioning properly leaving no insulin to be produced. Therefore the end result is Diabetes
help needed plsss !
Answers
Answer:
b. G
Explanation:
In RNA transcription, uracil pairs with adenine instead of thymine.
What is currently happening with Mount Etna?
Answers
Answer:
As Italy’s National Institute of Geophysics and Volcanology (INGV) explains on a recent blog post, the nascent eruption began on the night of May 29. Starting off by producing a thick column of ash rising from the New Southeast Crater, it gave way on May 30 to a far more lava-heavy display in the area, featuring two fissures blenching out lava.
Answer:
There is currently no eruptive activity at the volcano involving fresh lava and monitoring signals do not suggest an immediate change likely; only a weak thermal anomaly continues to be present from the southeast crater complex.
Explanation:
A cell has a 1% salt concentration. It is placed into a solution containing a 10% salt concentration.
What will happen to the cell?
Choose 1 answer:
Water will move out of the cell, causing it to swell.
Water will move into the cell, causing it to shrink.
Water will move into the cell, causing it to swell.
Water will move out of the cell, causing it to shrink.
Answers
Answer:
Water will move out of the cell, causing it to shrink.
Explanation:
When something with a low salt concentration is placed in a higher concentration of salt, the salt in the solution will try to suck out the water in the cell. Just remember why we hate salt, because it sucks! There's a little joke to help u remember. Thanks, Ms. Hoj :)
Answer:
CORRECT (SELECTED)
Water will move out of the cell, causing it to shrink.
Explanation:
The cell has lower concentration of solute and a higher concentration of water than the solution it is placed in. This means that water will move out of the cell, causing it to shrink.
Alternate forms of a gene having the same position on a pair of chromosomes and affecting the same trait
are called ______. A) phenotypes B) alleles
C) DNA
D) mutations E) genotypes
Answers
Answer:
The answer is B) alleles
Explanation:
Alternate forms of a gene having the same position on a pair of chromosomes and affecting the same trait are called alleles.
What do you mean by traits?Traits may be defined as the appearance or manifestation of the desired characters. Traits are also known as phenotypes.
Every factor or gene has two alternative copies, one comes from the father and one comes from the mother. These two copies are present in the same location on the homologous chromosome. They are known as alleles of each other.
Therefore, Alternate forms of a gene having the same position on a pair of chromosomes and affecting the same trait are called alleles.
To learn more about Alleles, refer to the link:
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Explain why the forest ecosystem is a system.
Answers
Answer:
Like all ecosystems, forests consist of many interacting parts. They include living organisms such as plants, animals, and fungi. Forests also include non-living components that these organisms depend on, such as the soil and climate. As stated in the article, one change, such as pollution, can cause a ripple effect through the ecosystem. Dying lichens are one of the earliest signs of pollution. In turn, the loss of the lichens can cause a decline in species that rely on the lichens for survival.
Explanation:
That is the sample answer.
Seth will attend college in the fall and live in the dormitory, so he is required to obtain a blank against bacterial meningitis, which will stimulate his body to produce immunity to the disease. He reads that meningitis is a fast-acting and potentially fatal disease, transmitted by blank in the respiratory droplets of infected individuals. The bacteria are blank that cause disease by destroying blank and releasing blank that disrupt the body’s normal homeostasis. Bacterial infections are treated with blank , which block the growth and reproduction of bacteria.
Key answer: bacteria, vaccine, cells, pathogens, toxins, antibiotics
Answers
Answer:
vaccine
bacteria
pathogens
cells
toxins
antibiotics
Explanation:
Bacterial meningitis is a serious disease that is caused by an infection which results into Inflammation of brain and spinal cord membranes.
It is generally caused by virus but also caused by fungus and bacteria. A vaccine is required to fight against the bacterial meningitis. Symptoms include fever, stiff neck and headache. This disease is carried by the bacteria present in the throat of infectious person and can transmit through coughing, sneezing and kissing. The bacteria are the pathogens, releases a toxin which destroy cells and surface components of nervous system.
This disease is treated with intravenous antibiotics and corticosteroids (sometimes).
Hence, the correct answers for blanks are vaccine, bacteria, pathogens, cells, toxins, and antibiotics in sequential order.
When iron in rocks reacts with oxygen, it
forms iron oxide (rust), which weakens
rocks and causes them to break apart.
This is an example of...
Answers
Answer:
Oxidation
Explanation:
What percent will have spots ?
25 %
0 %
50
Answers
What part of the respiratory tract is considered the respiratory zone?
A. Bronchioles
B. Larynx
C. Trachea
D. Alveoli
Answers
Answer:
D. Alveoli
Explanation:
Functionally, the respiratory system is separated into a conducting zone and respiratory zone:
Conducting zone consists of the nose, pharynx, larynx, trachea, bronchi, and bronchioles. These structures form a continuous passageway for air to move in and out of the lungs.
Respiratory zone is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar ducts, and alveoli. These thin-walled structures allow inhaled oxygen (O2) to diffuse into the lung capillaries in exchange for carbon dioxide (CO2).
The respiratory zone begins where the terminal bronchioles join a respiratory bronchiole, the smallest type of bronchiole, which then leads to an alveolar duct, opening into a cluster of alveoli.
Answer:
Yep, the correct answer is D.) Alveoli
Explanation:
Hope this helped you!Have a great day(:
An example of plasma is _____________liquid_______________________.
2. The fifth type of matter that can be created only in a laboratory is called ___condensate_________________.
are these correct?
Answers
Answer:
Example of plasma.
Explanation:
lightning.aurorae.the excited low-pressure gas inside neon signs and fluorescent lights.solar wind.welding arcs.the Earth's ionosphere.stars (including the Sun)the tail of a comet.
2.It's Bose-Einstein condensate,
Science Work, Help Please!
1. A. What is diffusion?
1. B. Use diffusion to
explain what happens when you drop a
sugar cube into a mug of hot tea.
2. A. What is osmosis?
2. B. Describe how water molecules
move through the cell membrane during
osmosis.
Answers
Answer:
Diffusion is the spreading of something more widely. When you drop a sugar cube in hot tea the sugar cube spreads out and the sugar starts to dissolve in the tea. Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane. If the concentration of water molecules ouside the cell is lower than the concentration of water molecules outside the cell then the water moves out through osmosis. Water travels through the cell membrane.
Omosis is the movement of solvent particles across a sermipermeable membrane from a dilute solution into a concentrated solution
If you could repeat the experiment and make it better, what would you do differently and why?
Answers
Answer:
Nothing different, perform the same thing and see if I get the same results.
Explanation:
Answer:
Nothing different, perform the same thing and see if I get the same results.
Explanation:
Why is electroreception important to sharks?
O keeps predators away
O detects prey
O balance
O attracts mates
Answers
Identify the disorders described. immune system overreacts to an antigen part of the immune system does not function properly the body's immune system attacks its healthy cells, mistaking them for pathogens masses of cells form and steal nutrients from healthy cells
Answers
Answer: 1: allergic disorders
2. Immunodeficiency disorders
3. Autoimmune disorders
4. Cancers
Immune system overreacts to an antigen part of the immune system does not function properly the body's immune system attacks its healthy cells, mistaking them for pathogens masses of cells form and steal nutrients from healthy.
What do you mean by Allergy?Allergy may be defined as a reaction by our immune system to something that does not trouble most other people. It affects a person more specifically.
When a person gets affected by any allergy, the immune system of that person may overreact by producing more antibodies. These antibodies attack the allergen particles and cause adverse symptoms.
A person who has allergies has them because his or her body over reacts to a material that would otherwise be ignored. It is an overreaction of the immune system triggering a immune attack response that is unneeded.
Therefore, a person who has allergies has a compromised immune system because the body's immune system overreacts to an antigen.
Learn more about antigen on:
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Name 5 Dinosaurs Related to Tyrannosaurus rex and Speed also Hight
Answers
Answer: Spinosaurus Gigantosaurus Allosaurus Tyrannosaurs and Titanosaur. PLEASE GIVE ME BRAINLIEST
Explanation: Saurischian Height Length Weight
Acrocanthosaurus (top-spined lizard) 19 ft. 5.8 m 40 ft. 12.2 m 6,000lbs 2,722kg.
Albertosaurus (Alberta lizard) 15 ft. 4.6 m 30 ft. 9.1 m 6,000lbs 2,722kg.
Allosaurus (other lizard) 17 ft. 5.2 m 40 ft. 12.2 m 4,000lbs 1,814kg.
Apatosaurus (deceptive lizard) 15 ft. 4.5 m 75 ft. 22.9 m 66,000lbs 29,937kg.
Archaeopteryx (ancient wing) 1 ft. 0.3 m 3 ft. 0.9 m 2lbs 0.9 kg.
Argentinosaurus (Argentina lizard) 70 ft. 21.4 m 120 ft. 36.6 m 220,000lbs 99,792kg.
Baryonyx (heavy claws) 6 ft. 1.8 m 30 ft. 9.1 m 4,000lbs 1,814kg.
Brachiosaurus (arm lizard) 50 ft. 15.2 m 100 ft. 30.5 m 100,000lbs 45,360kg.
Ceratosaurus (horned lizard) 13 ft. 4.0 m 20 ft. 6.1 m 3,000lbs 1,361kg.
Coelophysis (hollow form) 3 ft. 0.9 m 9 ft. 2.7 m 100lbs 45.5kg.
Compsognathus (elegant jaw) 2 ft. 0.6 m 3 ft. 0.9 m 8lbs 3.6kg.
Deinonychus (terrible claw) 5 ft. 1.5 m 9 ft. 2.7 m 175lbs 80kg.
Diplodocus (double beam) 24 ft. 7.3 m 89 ft. 27.1 m 50,000lbs 22,680kg.
Dromiceiomimus (emu mimic) 5 ft. 1.5 m 11 ft. 3.4 m 220lbs 100kg.
Gallimimus (fowlmimic) 8 ft. 2.4 m 18 ft. 5.5 m 260lbs 118kg.
Mamenchisaurus (Mamenchi lizard) 35 ft. 10.7 m 69 ft. 21.0 m 60,000lbs 27,216kg.
Megalosaurus (big lizard) 12 ft. 3.7 m 26 ft. 7.9 m 2,000lbs 907kg.
Microvenator (small hunter) 2.5 ft0.8 m 4 ft. 1.2 m 14lbs 6.4kg.
Ornithomimus (bird mimic) 8 ft. 2.4 m 15 ft. 4.6 m 300lbs 136kg.
Oviraptor (egg robber) 3 ft. 0.9 m 5 ft. 1.5 m 80lbs 36kg.
Plateosaurus (flat lizard) 7 ft. 2.1 m 26 ft. 7.9 m 4,000lbs 1,814kg.
Saurornithoides (narrow-clawed lizard) 3 ft. 0.9 m 6.5 ft. 2.0 m 60lbs 27kg.
Seismosaurus (tremor lizard) 84 ft. 25.6 m 150 ft. 45.7 m 200,000lbs 90,720kg.
Spinosaurus (spiny lizard) 8 ft. 2.4 m 40 ft. 12.2 m 14,000lbs 6,350kg.
Supersaurus (super lizard) 66 ft. 20.1 m 100 ft. 30.5 m 120,000lbs .54,432kg.
Tyrannosaurus (tyrant lizard) 23 ft. 7.0 m 50 ft. 15.2 m 14,000lbs .6,350kg.
Ultrasauros (ultra lizard) 53 ft. 16.2 m 100 ft. 30.5 m 140,000lbs .63,504kg.
Velociraptor (swift robber) 2 ft. 0.6 m 6 ft. 1.8 m 250lbs .113kg.
View printable version of table.
Ornithischian Height Length Weight
Ankylosaurus (armored lizard) 7 ft. 2.1 m 35 ft. 10.6 m 10,000lbs 4,536kg.
Camptosaurus (bent lizard) 10 ft. 3.0 m 23 ft. 7.0 m 4,000lbs 1,814kg.
Chasmosaurus (cleft lizard) 6 ft. 1.8 m 17 ft. 5.2 m 3,000lbs 1,361kg.
Claosaurus (broken lizard) 6 ft. 1.8 m 12 ft. 3.7 m 2,000lbs 907kg.
Corythosaurus (helmet lizard) 16 ft. 4.9 m 30 ft. 9.1 m 8,860lbs 4,019kg.
Dravidosaurus (Dravidanadu lizard) 4 ft. 1.2 m 10 ft. 3.0 m 2,000lbs 907kg.
Dryosaurus (oak lizard) 6 ft. 1.8 m 13 ft. 4.0 m 2,000lbs 907kg.
Euoplocephalus (well-armored head) 4 ft. 1.2 m 17 ft. 5.2 m 7,000lbs3,175kg.
Hadrosaurus (bulky lizard) 15 ft. 4.6 m 30 ft. 9.1 m 6,000lbs 2,722kg.
Hypsilophodon (high-crested tooth) 3 ft. 0.9 m 7.5 ft. 2.3 m 140lbs 64kg.
Iguanodon (iguana tooth) 18 ft. 5.5 m 30 ft. 9.1 m 10,000lbs 4,536kg.
Kentrosaurus (spiky lizard) 5 ft. 1.5 m 17 ft. 5.2 m 4,000lbs 1,814kg.
Lambeosaurus (Lamb's lizard) 18 ft. 5.5 m 30 ft. 9.1 m 14,000lbs 6,350kg.
Nodosaurus (node lizard) 6 ft. 1.8 m 18 ft. 5.5 m 6,000lbs 2,722kg.
Ouranosaurus (brave monitor lizard) 10 ft. 3.1 m 23 ft. 7.0 m 8,000lbs 3,629kg.
Pachycephalosaurus (thick-headedlizard) 10 ft. 3.1 m 18 ft. 5.5 m 4,000lbs 1,814kg.
Protoceratops (first horned face) 2 ft. 0.6 m 6 ft. 1.8 m 900lbs 408kg.
Shantungosaurus (Shanshan lizard) 25 ft. 7.6 m 51 ft. 15.5 m 14,000lbs 6,350kg.
Styracosaurus (spiked lizard) 7 ft. 2.1 m 17 ft. 5.2 m 6,000lbs 2,722kg.
Stegosaurus (plated lizard) 11 ft. 3.4 m 30 ft. 9.1 m 6,000lbs 2,722kg.
Tenontosaurus (tendon lizard) 10 ft. 3.0 m 23 ft. 7.0 m 4,000lbs 1,814kg.
Torosaurus (bull lizard) 7 ft. 2.1m 21 ft. 6.4 m 12,000lbs 5,443kg.
Triceratops (three-horned face) 9.5 ft. 2.9 m 26 ft. 7.9 m 14,000lbs 6,350kg.
The above answer is actually very incorrect as it names various species from various different groups and species.
When looking for related species to tyrannosaurus you should look under Tyrannosauridae to get an accurate answer.
Tyrannosaurs Rex - 40-42 ft long, 8.4-14 tons
1. Tarbosaurus - 33-39ft long, 4-5 metric tons
2. Albertosaurus - 30-32ft long, 4 tons
3. Gorgosaurus - 26-30ft, 2.8-2.9 tons
4. Daspletosaurus - 26-30ft, 2.5 tons
5.Zhuchengtyrannus - 33-39ft, 6 tons
Hope this helps. :)
Which of the following is always true of two organisms in
the same taxonomic class?
A.They can breed with one another
B.They have certain physical features in common
C.they evolved at the same time
D.they live in the same ecosystem
Answers
Answer:
they can breed with one another, they have certain physical features in common, they evolved at the same rate, they live in the same ecosystem. Lions and house cats share common features, but cannot breed with one another.
Explanation:
They share a common ecology, they may breed with one another, share some physical characteristics, evolve at the same rate, and inhabit the same ecosystem, hence option D is correct.
What are the taxonomic classes?If two species are members of the same class, they are also members of the same higher-level taxon. They share the same phylum and kingdom in this instance.
Kingdom, phylum or division, class, order, family, genus, and species are the seven main taxonomic ranks.
The taxon with the greatest number of species is the kingdom. In taxonomy, it is the broadest category into which the creatures can be divided.
The classification of five kingdoms was made by R.H. Whittaker. The kingdoms of Monera, Protista, Fungi, Plantae, and Animalia are included in this classification.
Therefore, option D is correct.
Learn more about a taxon, here;
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PLEASE HELPP. 20 POINTS
Brandy knows that chromosomes behave differently in meiosis and mitosis. What do chromosomes do in meiosis but not in mitosis?
Each chromosome makes a copy.
The homologous chromosomes form pairs.
Chromosomes line up in the middle of the cell.
Chromosomes condense or shorten up before cell division begins.
Answers
Answer:
It's B
Explanation:
"The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.
Answer:
The homologous chromosomes form pairs.
Explanation:
What type of energy transformation takes place when carbon is cycled during cellular respiration?
A) Chemical energy to chemical energy
B) Chemical energy to electrical energy
C) Mechanical energy to chemical energy
D) Mechanical energy to mechanical energy
Answers
Answer:
C
Explanation:
A coal-fired power plant involves these energy transformations: Chemical energy in the coal is converted into thermal energy in the exhaust gases of combustion. Thermal energy of the exhaust gases converted into thermal energy of steam through heat exchange.
S-waves arrive at a seismic station?
First
Second
Third
Fourth
Answers
Answer:
First
Explanation:
S-waves arrive first at a seismic station
Which of these is a function of the placenta?
A To deliver the blastocyst after childbirth
B. To carry nutrients to the cells of the uterus
C. To carry wastes away from the embryo
O D. To develop into fetal reproductive tissues
Answers
Answer:
c
Explanation:
Help with this question
Answers
Answer:
Formula
a^2 + b^2 = c^2
a = side of right triangle
b = side of right triangle
c = hypotenuse
Explanation:
What geographic feature has the largest impact on creating a climate zone
Answers
i think the answer should be location
What is the difference between weather and climate?
Answers
Hope this helped.
which of the following definitions is the correct description of symbiosis
Answers
Answer:
A symbiosis is an evolved interaction or close living relationship between organisms from different species, usually with benefits to one or both of the individuals involved.
symbiosis is an evolved interaction or close living relationship between organisms from different species, usually with benefits to one or both of the individuals involved.
