PLS HELPPP PLSSS I REALLY NEED THIS HELPPPP!!!!!
Answer:
presence of the placenta (mammals)
Explanation:
Cat and dogs are two species that belong to the group of placental mammals (class Mammalia). Some phenotypic traits that are exclusive of mammal species include, among others, mammary glands, presence of hair or fur, sweat glands, specialized teeth, etc. A phylogenetic tree is a representation of the evolutionary relationships among different groups/taxa. Moreover, cats and dogs represent two different species of placental mammals, which are characterized by the presence of the placenta (an organ that facilitates the exchange of nutrients during gestation). In this case, the remaining two branches in the phylogenetic tree (branches from left to right) separate from more closely related to less closely related taxa that diverged from the same ancestral node.
Put these items in order from largest to smallest, make sure to watch the video.
Indoor air pollution has increased as improvements have been made in
A) heating and air-conditioning systems
B) radon-resistant construction techniques
C) energy conservation in the home
D) green building construction
E) all of these choices contribute to indoor air pollution
Answer:
A) heating and air conditioning systems
Explanation:
I say A because the rest of the choice are promoting good ways to decrease global warming, and if you don't have as many harmful gases in the air you wont have them in your building.
e2021
Heating and air-conditioning systems increase indoor air pollution.
Heating and air conditioning systems use a large amount of energy, electricity production increased, which emits more carbon dioxide into the atmosphere.
What is indoor air pollution?It is the dust, dirt, or gases in the air inside buildings such as home or workplace that could be harmful to breath in. Poor quality has been linked to lung disease like asthma etc.Hence , A) option is the correct answer.
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How does eutrophication affect an aquatic ecosystem
Answer:
Eutrophication is an enrichment of water by nutrient salts that causes structural changes to the ecosystem such as: increased production of algae and aquatic plants, depletion of fish species, general deterioration of water quality and other effects that reduce and preclude use”.
Explanation:
Answer:
It prevents sunlight from reaching aquatic life below the water’s surface.
Explanation:
Got it right on PLATO
Which of the following was from the Flemish timeframe (era)?
O Created arrangements using a single flower
O striped/flame colored tulips were popular
O used daffodils as a form of currency
O Daffodils were traded similar to current day "stocks"
Answer:
Striped/flame colored tulips were popular
Explanation:
I took the test and said I got it right plus in this typical time colored tulips were used for many things besides them being in ponds
In a certain species of insect, some individuals have flattened white disks on their bodies that protrude and interlock, resembling an orchid flower. This adaptation provides the insect with a better opportunity to capture its prey. If environmental conditions remain unchanged, it is most likely that, in future generations, the proportion of the population with this adaptation will
Answer:
A) increase only
Explanation:
this adaptation will benefit these species, therefore, increasing the population
hello please help i’ll give brainliest
Answer:
sunlight ofc
Explanation:
its simple
Answer:
Sunlight
Explanation:
The taller the plant, the more sunlight it will accumulate.
I WILL GIVE BRAINLIEST
Fossils usually form in which type of rock?
a. metamorphic
b. igneous
c. sedimentary
d. All of these commonly contain fossils.
Answer:
Sedimantry
Explanation:
I hope this helps!
define reflex action in your own words
Answer:
reflex action is a way for your body to react to different stimuli. this action is automatic and unplanned and it is done by your body to prevent any further damage.
eg:
pulling you hand when you touch a hot pot
Which statement best describes the motion of the plates along these boundaries that causes the earthquakes? The plates push apart from each other with no subduction. Subduction occurs with the less-dense plate sinking below the other plate. Subduction occurs with the more-dense plate sinking below the other plate. The plates smash together with no subduction.
Answer:
D). The plates smash together with no subduction.
Explanation:
As per the question, the last statement most adequately demonstrates the movement of plates i.e. 'the plates hit together without any detraction' through concurring boundaries causing the earthquakes to take place. The continuous smashing of tectonic plates with one another leads to the development of a pressure towards both the rock layers by the time this stress is released through a shaky or convulsive movement of the Earth. Thus, option D is the correct answer.
Learning Task 2 Write the word true or false if the statement is correct and if false change the underline word or words to make a statement correct
Complete question:
Write the word TRUE if the statement is correct and if FALSE change the underlined word or words to make the statement correct.
_______1. A molecular group consisting of a sugar molecule, a phosphate group and a nitrogenous base is a nucleic acid.
_______ 2. In a DNA molecule, a base pair would be composed of adenine and guanine.
_______ 3. Cytosine and adenine are purines.
_______ 4. During the replication of DNA, bonds are broken between the phosphate groups.
_______ 5. RNA contains the nitrogenous base uracil.
_______ 6. There are 20 different amino acids in a cell.
_______ 7. The coded message carried by messenger RNA is translated into polypeptides at organelles called chloroplasts.
_______ 8. The decoding of a messenger RNA message into a polypeptide chain is known as translation
_______ 9. A severe mutation may lead to cell death and may have no effect on the body.
_______ 10. Most mutation are harmful.
Answer:
FalseFalseFalseFalseTrueTrueFalseTrueTrueFalseExplanation:
_False_1. A molecular group consisting of a sugar molecule, a phosphate group, and a nitrogenous base is a nucleic acid.
Nucleotides: subunits or monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base. The chain or sequence of nucleotides composes the polymer. Different nucleotides joined by their extremes compose the nucleic acid: DNA or RNA.
A molecular group consisting of a sugar molecule, a phosphate group, and a nitrogenous base is a nucleotide.
_False_ 2. In a DNA molecule, a base pair would be composed of adenine and guanine.
In the DNA molecule, Adenine (Purine) always pairs with Timine (Pyrimidine), while Guanine (Purin) pairs with Cytosine. A-T pair is united by 2 hydrogen bonds, and the G-C pair is united by 3 hydrogen bonds.
In a DNA molecule, a base pair would be composed of adenine and timine, or In a DNA molecule, a base pair would be composed of cytosine and guanine.
_False_ 3. Cytosine and adenine are purines.
Nitrogenated bases that form nucleic acids correspond to purines and pyrimidines. Adenine and guanine derive from purines, while Thymine and Citocine derive from Pyrimidines.
Guanine and adenine are purines.
_False_ 4. During the replication of DNA, bonds are broken between the phosphate groups.
During the replication of DNA, bonds are broken between the hydrogen groups.
_True_ 5. RNA contains the nitrogenous base uracil.
Instead of Timine, RNA contains uracil that pairs with adenine.
_True_ 6. There are 20 different amino acids in a cell.
_False_ 7. The coded message carried by messenger RNA is translated into polypeptides at organelles called chloroplasts.
When mRNA leaves the nucleus, meets a free ribosome in the cytosol. Into this organelle, it starts the protein building. Ribosomes read the mRNA code and begin protein synthesis by adding the correct amino acid using transference RNA.
The coded message carried by messenger RNA is translated into polypeptides at organelles called ribosomes.
__True__ 8. The decoding of a messenger RNA message into a polypeptide chain is known as translation
__True__ 9. A severe mutation may lead to cell death and may have no effect on the body.
_False_ 10. Most mutation are harmful.
A mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but most of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection, leading to evolution.
Most mutation are not harmful
Based on structure, DNA molecules are composed of nucleotides and mutations in DNA are mostly harmful.
What is DNA?DNA refers to sequences of nucleotides which contain the genetic information of organisms.
Nucleic acids are chains of nucleotides.
Nucleotides are molecular group consisting of a sugar molecule, a phosphate group and a nitrogenous base.
Four nucleotides are present in DNA and they include:
adenine guanimecytidine andthymidineIn a DNA molecule, a base pair would be composed of adenine and guanine is false because adenine bonds to thymine, while guanine bonds to cytidine
Cytosine and adenine are purines is false because cytosine is pyrimidine while adenine is a purine
During the replication of DNA, bonds are broken between the phosphate groups is false because the bonds broken are hydrogen bonds.
RNA contains the nitrogenous base uracil is true as uracil is found in RNA in place of thymine in DNA.
There are 20 different amino acids in a cell is true as these amino acids are found in proteins.
The coded message carried by messenger RNA is translated into polypeptides at organelles called chloroplasts is false because protein synthesis occurs at the ribosomes.
The decoding of a messenger RNA message into a polypeptide chain is known as translation is true.
A severe mutation may lead to cell death and may have no effect on the body is false because mutations can cause death of organisms.
Most mutation are harmful is true because only free mutations are beneficial.
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_________ is when the cell uses the mRNA code to build protein. This process takes place in the _________ with the help of the organelle called the ___________.
Answer:
1. Translation
2. Cytoplasm
3. Ribosome
Explanation:
Translation is a process whereby the cell uses a mRNA template to produce an amino acid sequence (protein). It is the second stage of gene expression in living organisms.
Translation occurs in the CYTOPLASM of a cell with the help of an organelle called RIBOSOME. The ribosome attaches to the mRNA molecule in the cytoplasm to initiate the process of translation.
What are two reasons plants might produce vegetative plants
Answer:
Vegetative reproduction, any form of asexual reproduction occurring in plants in which a new plant grows from a fragment of the parent plant or grows from a specialized reproductive structure (such as a stolon, rhizome, tuber, corm, or bulb).
Explanation:
Which of the following happens in the G1 Phase of the Cell Cycle?
A.) The organelles duplicate
B.) DNA replicates
C.) Specialized structures for cell division are assembled
D.) The cell splits in two daughter cells
Answer:
DNA REPLICATES
Explanation:
During G1 phase, the cell grows in size and synthesizes mRNA and protein that are required for DNA synthesis. Once the required proteins and growth are complete, the cell enters the next phase of the cell cycle, S phase.
PLSS HELP!
Any ball traveling through the air is going to be pulled toward Earth by gravity. Its movement will also
be slowed by friction. Explain how air molecules cause this friction.
Answer:
object slows down), the way in which we calculate a drag force will be slightly different. .and “coefficient of drag , is it easy for objects to move through it
Explanation:
Answer:
by rubbing with air there would be a force against motion
Explanation:
Why don’t we have lunar eclipses every month ?
Jupiter's Great Red Spot is believed to be ____________.
a. a volcanic area
b. the effect of a mountain system on Jupiter's wind system
c. a zone of high ammonia concentration
d. a large rotating hurricane-like storm (cyclone)
e. none of these
The Great Red Spot, a permanent region of high pressure in Jupiter's atmosphere, is responsible for producing the largest anticyclonic storm in the Solar System. Thus, option D is correct.
What Jupiter's Great Red Spot rotating hurricane-like storm?In Jupiter's atmosphere, there is a huge, rotating storm known as the Great Red Spot. It is similar to an Earthly hurricane, but considerably bigger.
The Great Red Spot on Jupiter is larger than Earth by more than two times! Within this storm, winds can gust as high as 270 miles per hour (ca. 435 km/h).
When astronomers first focused their telescopes on Jupiter in the 17th century, they discovered a striking reddish patch on the massive planet. More than 300 years later, the Great Red Spot is still visible in Jupiter's atmosphere. It is now understood to be a big storm that is rotating like a cyclone.
Therefore, Jupiter's Great Red Spot is believed to be (a large rotating hurricane-like storm (cyclone)).
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✎﹏☾✦☁️❣️ Briefly explain the process of photosynthesis .❣️☁️
Answer:
hope this will help u
Explanation:
photosynthesis is the process in which plant make their own food with the help of sunlight,water and carbon dioxide. water and carbon dioxide are raw materials in photosynthesis because they help to prepare their food.During photosynthesis, plants take in carbon dioxide and water from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
Explanation:
PHOTOSYNTHESIS
This is a process in which green plants and other organisms make their own food from simple inorganic substances which are sunlight ,CO2 and chlorophyll.
4. The picture below shows a bird landing at a bird feeder outside a window. The image of this bird in the window is the result of light being: 1. Absorbed 3. Transmitted C. Reilected D. Retracted
The picture below shows a bird landing at a bird feeder outside a window. The image of this bird in the window is the result of light being, Reilected.
How would you describe diffraction?The diffraction, the scattered of waves around blocks. Diffraction takes place with sound; with electromagnetic radiation, such as light, X-rays, and gamma rays; and with very tiny moving particles such as atoms, neutrons, and electrons, which show wavelike effects.
Thus, option "D" is correct, The image of this bird in the window is the result of light being, Reilected.
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Escriban las diferencias y las semejanzas que existen entre los metodos citotaticos y los citotoxicos
Answer:
Ambos son similares en sus acciones.
Explicación:
La principal diferencia que existe entre los métodos citotóxicos y citotóxicos es que los citotóxicos son las sustancias que envenenan la célula, mientras que los métodos citotóxicos son las formas de toxicidad celular. Tanto los métodos citotóxicos como los citotóxicos son similares en su acción porque tanto los métodos citotóxicos como los citotóxicos dañan la célula. Tanto en los métodos citotóxicos como en los citotóxicos, ambos causan toxicidad en la célula que inhibe el crecimiento y la estructura normales de la célula.
Which of the following processes involves the endocrine system and digestive system working together?
A. Oxygen is carried to blood cells as food is digested in the stomach.
B. Hormones stimulate the pancreas to release enzymes needed to break down food.
C. The brain sends signals to the muscles to chew food.
D. When the hand touches hot food, it is quickly moved away
Answer:
Hormones stimulate the pancreas to release enzymes needed to break down food
What life form was the first on earth?
bacteria
amphibians
land plants
dinosaurs
the role of metal in oraganism
Answer:
Sorry if I'm wrong
Explanation:
Metals play very important roles in human life. Their absence may lead to several diseases in human body. Metals have also been exploited to design therapeutically useful drugs against several diseases like cancer, arthritis, ulcer, etc. Metals present in enzymes strongly facilitate their catalytic reaction.
Which of the following is a true statement about reproduction?
A. Sexual reproduction requires two individuals from the same species; two males, two females, or a male and a female. B. Asexual reproduction requires two individuals from the same species—two males, two females, or a male and a female--to produce offspring. C. Sexual reproduction requires a male and a female gamete. D. Asexual reproduction requires a male and a female from the same species.
A . sexual reproduction requires two individuals from the same species, a Male and a female
but sexual reproduction refers to the union of a Male and a female
At what location on the mountain is the relative himidity probably 100%
Explanation:
On which side of the mountain and at which elevation is the relative humidity probably 100%? The air temperature on the leeward side of the mountain at 1.5-kilometers level is higher than the temperature at the same elevation on the windward side.
What could contribute to a mass extinctions event
Answer:
1/ Climate change
2/ Asteroid impacts
3/ Massive volcanic eruptions
4/ Sun explodes
etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)
PLSSS HELP GIVING BRAINLIEST
Which two phrases best summarize the events taking place in Step 2? O A. Cellular respiration OB. Releasing carbon dioxide into the atmosphere O C. Storing carbon dioxide in living organisms O D. Photosynthesis
Answer:
A and B are your answers
Explanation:
Segment of chromosome is placed in the reverse order.
Translocation
Duplication
Deletion
Inversion
Answer: Inversion
Explanation:
How is the environmental problem caused by humans? Describe the specific human activity that causes this problem.
Your response should be about 2-4 sentences long, or it may be written as bullet points
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
sana po makatulong
Energy can not be created or destroyed , only converted from one form to another
T or F
Answer:
T
Explanation:
Energy cannot be created nor destroyed.