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Related Questions
3. Synthesize in your own words, explain why scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity Refer to the Case Study.
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Explanation:
Scientists give three reasons. First, amphibians are sensitive biological indicators of changes in environmental conditions such as habitat loss, air and water pollution, ultraviolet (UV) radiation, and climate change.Amphibians are sensitive biological indicators of environmental circumstances such as habitat loss, pollution of the air and water, ultraviolet (UV) radiation, and temperature change.
What is biodiversity?The variety and variability of life on Earth is referred to as biodiversity or biological diversity. A measure of variation at the genetic, species, and ecosystem levels is called biodiversity.
Biodiversity refers to the variety of all the diverse species of organisms that dwell on our planet, including the plants, animals, insects, and microorganisms.
Each of these things exists in a delicate balance and coexists with the others in ecosystems that nourish and sustain life on earth.
Amphibians are sensitive biological markers of changes in environmental conditions like temperature, UV radiation, habitat loss, and air and water pollution.
Thus, scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity.
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The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called-
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Answer:
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called
electromagnetic energy/spectrum.
Which statement regarding polymers is TRUE?
1. Polymers have only a few uses.
2. All polymers are made entirely of carbon and hydrogen.
3.Many polymers do not decompose and recycling them can be difficult.
4. Polymers are made by separating crude oil during fractional distillation.
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There is a species of frog on an island that puzzles scientists. The proportion of frogs with no stripes is greater than the proportion of frogs with
stripes. This is puzzling because the unstriped trait is recessive (s), and the striped patterns are due to dominant alleles (S). Also, natural selection
seems to support the striped trait.
How do genetic factors most likely account for the proportion of traits in the frog population?
A. Most of striped frogs and unstriped frogs have the genotype ss.
OB. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype ss.
C. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype Ss.
OD. Most of striped frogs have the genotype Ss and the unstriped frogs have the genotype ss.
Hi
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Should ever come back...Should ever come back....
The marine iguanas of the Galapagos Islands feed on seaweed and algae. Marine iguanas have flattened tails while other species of iguanas that live inland on the Galapagos and on the South American mainland have rounded tails. Which of the following best explains this difference in tail shape?
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Answer:
Flattened tails are better for swimming than rounded tails.
The difference in the tail shape is because Flattened tails are better for swimming than rounded tails.
This is due to the difference in habitats of the marine and inland iguanas.Why do plants adapt for different habitats?This is due to natural selection.By natural selection, the nature of the species gradually changes to became adapted to the niche.To know more about natural selection here
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Which term represents animals without backbones?
invertebrates
heterotrophs
autotrophs
vertebrates
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Answer:
Invertebrates.
Explanation:
Invertebrate refers to animals with no backbone.
Answer:
invertebrates
Explanation:
The correct answer would be invertebrates or option A because those animals are called like that because they don't have backbones.
Mutated codons code for what in silent mutations?
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Answer:
Code for the same amino acid as the original codon
Explanation:
Mutation, which is any alteration in the nucleotide sequence of a gene, can occur when there is a replacement of base nucleotides. This is called SUBSTITUTION MUTATION. Substitution mutation can either lead to missense, nonsense or silent mutations.
As stated in this question, SILENT mutation is the one in which there is no change in the amino acid sequence after translation of the mutated mRNA. In other words, the mutation leads to an alteration of codon but the MUTATED CODONS CODE FOR THE SAME AMINO ACID as the original codon, hence, no effect on the protein produced or individual, in general.
How many amino acids are attached to one tRNA?
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Answer:
One amino acid
Explanation:
Please help me answer this.
the questions are.
In part 1 of her exercise warmup, her heart rate ____ because ____ (include oxygen and homeostasis in your answer)
In part 3 of her exercise, endpoint/ cool down, her heart rate ____ because ______ (include oxygen and homeostasis in your answer)
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Increased, because she needed to pump enough blood to transport the oxygen around to her organs, and maintain homeostasis
Part 3:
Decreased, since she didn’t need to pump as much oxygen to maintain homeostasis since her physical activity decreased.
During exhalation the air pressure on the outside of the lungs is (greater than / less than) the air pressure
inside the lungs.
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Answer:
greater than
Explanation:
hope it helps
is food poisoning direct or indirect contact?
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food poisoning is direct contact
What happens to the cells of a person who has cancer?
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Explanation:
Cancer happens when cells that are not normal grow and spread very fast. Normal body cells grow and divide and know to stop growing. Over time, they also die. Unlike these normal cells, cancer cells just continue to grow and divide out of control and don't die when they're supposed to.
Cancer cells continue to grow and divide out of control and don't die when they're supposed to.
Robert and his wife are ready to start a family, but they are concerned about having a child an inherited disease. This disease is a recessive disorder which requires both parents to contribute a recessive allele in order for the child to express the disorder. If both Robert and his wife are heterozygous for this trait, what is the probability that one of their children will have the disease?
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The probability is 1/4
Both parents are heterozygous.
Aa + Aa
This will give the following possibilities for offspring genotype:
AA, Aa, Aa, aa
As you can see the chance of a offspring having 2 copies of the recessive allele (which is required for the offspring to have the inherited disease is only a 1 in 4 chance.
17.
Why is it important to conserve the biodiversity of Earth?
A. to decrease the amount of global predator populations
B. to decrease the stability of major global ocean currents
C. to increase the stability of ecosystems during environmental
changes
D. to increase the amount of nonrenewable resources located in the
lithosphere
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What makes a species successful in an ecosystem?
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Answer:
Beside the intensive loss of forest cover [2], fragmentation of the pristine remnants further affects species [3] and limits their ability to move into adequate areas. Thus the ability to cope with altered landscapes is crucial for the persistence of a species, especially in the face of climate change.
MULTIPLE-SELECT QUESTION: CHOOSE TWO
CORRECT ANSWERS
STRUCTURES AND FUNCTIONS
A. There is not enough information to build the cladogram
B. The frog is placed in Position A on the cladogram above.
C. The pig is placed in Position B on the cladogram above.
D. The gorilla is placed in Position D on the cladogram above.
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Answer:
B and D
Explanation:
PLEASE HURRY
Based on this graph
What is the approximate age of the dust sample?
A. Between 4 and 5 billion years old
B. Between 6 and 7 billion
years old
C. Between 24 and 25 years old
D. Between 32 and 33 billion years old
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Answer:
B
Explanation:
Answer:
b
Explanation:
A drought in this ecosystem makes the ground become very dry. Which of the following would most likely result from this
change?
OA.
The grass will shrivel and die, which will cause a decrease in the impala population
ОВ.
The grass will grow more rapidly, which will cause a decrease in the impala population.
OC.
The grass will grow more rapidly, which will cause a decrease in the cheetah population.
D.
The grass will shrivel and die, which will cause an increase in the cheetah population.
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Answer:
A
Explanation:
The grass will shrivel and die, which will cause a decrease in the impala population
What are the seven taxon characteristics of a human again?
K
ד ר ת
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Answer:
I believe they are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Explanation:
The diving bell spider stores air underwater in a net of silk explain how this could be more advantageous than having gills
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Answer:
Explanation:
Using its web as a gill, the diving-bell spider can live underwater with only occasional visits to the surface. The arachnid (Argyroneta aquatica) breathes air from a bubble that it grabs from the surface of water using fine hairs on its abdomen.
Put these in order NO LINKS NO LINKS
Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
IF YOU DON'T KNOW THE ANSWER, DON'T ANSWER THIS QUESTION
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Answer:
Nasal Caviry
Trachea
Pharynx
Bronchi
Bronchioles
Aveoli
Capillaries
What term refers to the zooplankton in the food chain above?
A)producers
B)consumers
C) plants
D) decomposers
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3. What is the definition of recessive and dominant?
4. What is the difference between genotype and phenotype? Write a 5 sentence
paragraph describing the difference between the two.
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Answer:
Recessive: relating to or denoting heritable characteristics controlled by genes which are expressed in offspring only when inherited from both parents.
Dominant: Refers to a trait that appears more frequently than another trait, resulting from interactions between gene alleles.
Explanation:
Genotype and phenotype differences
Genotype Phenotype
The hereditary information of the organism in the form of gene in the DNA and remains the same throughout the life. The characters of an organism which are visible are known as phenotypes.
Same genotype produces same phenotype. Same phenotype may or may not belong to same genotype.
Present inside the body as genetic material. Expression of genes as the external appearence.
The genotype is inherited from the parent to the offspring. The phenotype is not inherited from the parent.
It can be determined by scientific methods such as the polymerase chain reaction. It can be determined by observing the organism.
It is affected by genes. It is affected by genotype and environmental conditions.
For eg., Blood group, eye colour, height, genetic diseases. For eg., Weight, physique, beak of birds
why are zebra mussels harmful to the lake
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Answer:
The zebra mussels also outcompete the natives for food and space, and because of their fast reproduction can quickly overwhelm a water system.
Explanation:
The feeding habits of zebra mussels can also have a drastic impact on an infested lake. Zebra mussels are filter feeders that siphon particles of plankton from the water.
True or false: Yeast is a bacteria cell.
True or False: An Inoculation Loop is a tool used when transferring/culturing bacteria.
True or False: A BSC focuses on limiting the chance of a liquid contaminating a worker.
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false
Explanation:
its a living organism
Last month, Sarah documented how her city suffered from acid rain. What type of pollution should the people in Sarah’s city try to control?
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Answer: I need more information to answer.
Explanation:
In biological macromolecules like proteins, the hydrophobic residues tend to clump together in the interior of the folded structure. What is the best explanation for why this occurs
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Answer:
The water and polar residues cannot bind to the hydrophobic ones, so in the lowest energy state the hydrophobic residues are pushed together in the middle.
hellllllllllllpp meeeeeeeeee pllllllllsssss..
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Answer:
Yes; When the cell grows larger,, it needs more cell membraine to prepair for mitosis. Without this process, the cell would rupture.
Yes; The cell would not be able to grow if the surface area stayed the same.
Hope this helps ^v^
please help!!!!!!!!!!!
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Answer:
Typically, the nucleus of a cancer cell is larger and darker than that of a normal cell and its size can vary greatly. Another feature of the nucleus of a cancer cell is that after being stained with certain dyes, it looks darker when seen under a microscope
Explanation:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it.
trna used in a sentence