How did the crickets lose their ability to chirp?
Answer:
By a mutation that altered the shape of their wings, making them incapable of producing the chirping noise. The feat was achieved over less than 20 generations, a mere evolutionary blink of an eye, and, with the crickets living just a few weeks, a very rapid process.
Explanation:
Answer:
The change seems to have been caused by a mutation that altered the shape of their wings.
Explanation:
Makes them incapable of producing the chirping noise. The feat was achieved over less than 20 generations, a mere evolutionary blink of an eye, and, with the crickets living just a few weeks, a very rapid process.
Sally, 9-year-old girl, just did an awesome backflip on her trampoline. Instead of landing in a similarly awesome manner, she miscalculated and landed on her neck. Sally stood up with pain in her neck and does not appear to be able to extend her left arm very well. An x-ray shows a fracture of her C6 vertebrae that is compressing down on her C7 vertebrae impacting the spinal nerve located between C6 and C7 vertebrae. Which spinal nerve did Sally likely injure
Answer:
The C7 spinal nerve
Explanation:
The C7 spinal nerve exits on each side through the intervertebral foramen between the C6 and C7 vertebrae. The C7 spinal nerve has both a sensory root which is composed of sensory fibers and a motor root. This nerve is required to control motor functions including shoulder movement (i.e., adduction, abduction and rotation). The C7 dermatome is a region of skin that receives sensory inputs from the C7 spinal nerve.
QUESTION 1 Genetic information has become part of our culture and it is difficult to tell the difference between unmodified and genetically modified food sources such as plant and animals. After reading this module’s material regarding vectors in biotechnology, consider the potential for nanotechnology and scientific advancement. Research nanotechnology and its potential use in biotechnology. In one or two paragraphs, explain the potential advantages and disadvantages of nanotechnology in health care, agriculture, or industry and discuss whether you would or would not support further research.
Answer:
Nanotechnology is a field of producing materials and devices from atoms and molecules.
Explanation:
Nanotechnology is a field that concerned with producing materials and devices from atoms and molecules. A nanometer is one-billionth of a meter in size. Nanotechnology can be used to “recognize” the cells of interest which allows associated drugs to reach diseased tissue without damaging healthy cells. Nanotechnology produces new and faster kinds of computers, more efficient power sources and more effective medical treatments. Main disadvantages include threats to security, privacy, health and the environment. More research must be done in this field to get more benefits from it.
8.
Waste products that are easily broken down by nature are
hazardous
toxic
biodegradable
recyclable
your slide is in focus but you cannot see anything, what maybe the possible problem
Answer:
The correct answer would be - using a lens that is too high powered and thus you may be too focused on the specimen.
Explanation:
The possible scenario for this case where the slide is in focus but can not see anything could be either specimen is not under the lense or too focused on the specimen by using a very high-powered lens.
In a very high-powered lens, the lens becomes over-focused and the specimen does not look in the field of view of the lens, in such case, an individual should ower the power of lense.
Assignment 1
-The cell is the smallest unit of life. All living things are made of cells.
A) What are the three principles of the cell theory? And explain each in details.
-Present-day mitochondria and chloroplasts probably evolved as a consequence of early endosymbiosis: the ancestor of the eukaryotic cell engulfed a bacterium, and the bacterium continued to function within the host cell.
B) What is the Endosymbiont theory? What is the evidence supporting this theory?
Answer:
buang si manoy kag ikaw ang abnoy
what is a example of acceleration?
Answer:
For example, if a car turns a corner at a constant speed, it is accelerating because its direction is changing. The quicker you turn, the greater the acceleration. So there is an acceleration when velocity changes either in magnitude or in direction, or both.
Explanation:
hope this helps... (i can't see the pic...)
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how do genes create traits in a organism
Answer:
Like chromosomes, genes also come in pairs. Each of your parents has two copies of each of their genes, and each parent passes along just one copy to make up the genes you have. Genes that are passed on to you determine many of your traits, such as your hair color and skin color.
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Help fast plz!!!
In a population of moths, wing color became darker over time. Which of the
following is the best evidence that the change in wing color was an evolutionary change?
a) The size of the moth population changed.
b) The average length of the moths' dark wings increased.
c) The number of eggs that females laid during each breeding season increased.
d) The frequencies of the alleles for dark wing color in the moth population
changed.
Answer:
d) The frequencies of the alleles for dark wing color in the moth population
changed.
Answer:
D
Explanation:
It would best describe how or what made the moths have more dark/darker collored wings overtime.
HELP PLS!!! (PSYCHOLOGY) I'LL GIVE YOU BRAINLIEST IF UR RIGHT!!
Nate is a teacher who has been in the dassroom for 25 years. When a new teacher is hired, he offers to be a mentor because he loves helping new teachers get inspired about working with children. He wants to help make sure that the teaching profession remains high quality. How would Erikson MOST likely describe Nate's efforts?
A.) Nate is working en generativity.
B.) Nate is working on ego integrity.
C.) Nate is working on intimacy.
D). Nate is working on acceptance
Answer:
A.) Nate is working on generativity
Explanation:
Generativity is the ability to provide care or concern for younger or older genrations. Nate offers to be the mentor because he loves helping the new teachers get inspired about working with children. According to Erik Erikson theory of psychosocial development, generativity can refer to "making your mark" or impact on the world through creating or nurturing things that will outlast in an individual/individuals.
What type of material is often used to make Impressions of tool marks?
A. cement mix
B. dental paste
C. porcelain clay
D. plaster of Paris
Explanation:
I would say/ a rubber base material is used for tool Mark's, I believe dental paste is used because it has the same material as described above....
Help please !!!!!! Need the answer asap
Answer:
i think the answer is c
Explanation:
In order for a compound to be considered organic, what 2 elements must the compound contain
Answer:
Organic compounds contain carbon and hydrogen (which may be replaced by other atoms).
Wrong answers only!!! What is the main source of surface water turning into underground water?
Answer:
Birds + planes = chicken
Explanation:
If you divide the air density by the amount of dirt on the sun, you get three roasted turkeys and a new haircut.
Answer:
Hey you forgot the part were you stuff the candle with cotton and then square the amount of laptops you have then divide by the amount of iphones produced by the worms that eat batteries to get the answer chicken AND 3 marked white vans but the catch is there are not white they are actually red
Explanation:
PLEASE HELPPPP
What is the relationship between mutation, the cell cycle, and cancer? Select all statements that apply.
A Mutated genes typically allow cells to respond to checkpoint proteins that halt the cell cycle, thus avoiding formation of tumors.
B. As a result of unregulated cell cycles, cells may become cancerous, meaning that the cells grow and divide uncontrollably.
С
Cancerous cells may form malignant tumors that invade and destroy surrounding healthy tissue.
D. Mutated, defective genes may cause cells to become unable to respond to signals that regulate the cell cycle.
brainpop newton's laws of motion worksheet answer key catagorize it answer
Answer:where the questions. cos
Explanation:
Help fast plz
A population of organisms has adapted so that the organisms are better able to survive in their environment. What will most likely happen to the population of
organisms?
a) It will increase.
b) It will decrease.
c) It will stay the same.
D)none of the choices given
ASAP PLS HELP !!! Jfndndbrhdbdbr pls
1. In DNA, the complementary bases are A-T and C-G, what is different about the complementary base pairing rules for RNA?
2. What amino acid is made from the mRNA codon GUA?
3. If the original DNA sequence is TAC-CCC-GAT-CGT, what would the complementary mRNA sequence be?
4. Using the mRNA sequence from number 3, what amino acids will be made from that sequence?
5. What are all the possible codons that would create the amino acid histidine (his)?
6. How many different codons are there that will create arginine (arg)?
7. If the amino acids joined together to make a protein are valine-proline-stop, what is one of the possible sequences of mRNA that could have created it?
Which of the following tropisms are the
same as geotropism?
a. thigmotropism
b. hydrotropism
c. phototropism
d. gravitropism
Answer:
d
Explanation:
d.gravitropism as it's both going downwards
An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?
small crystals
cooled quickly
produced from magma
formed at Earth’s surface
Answer:
C. produced from magma.
D. formed at Earth’s surface
Explanation:
Earth crust refers to the outermost layer or thin shell which makes up the earth such as sedimentary, metamorphic and igneous rocks.
The Earth crust is typically made up of two (2) main types;
1. Oceanic crust: this crust has a thickness ranging from 5 km to 10 km and comprises of denser rocks such as diabase, gabbro and basalt.
2. Continental crust: this crust has a thickness ranging from 30 km to 60 km and comprises of minerals such as quartz, silicate, feldspar, aluminum and less dense rocks such as granite
An igneous rock has a coarse texture and is dark in color. Also, an igneous rock can be accurately described as being produced from magma and formed at Earth’s surface.
Answer:
Produced from magma
Explanation:
I got it right on the test hope this helps
☺️
Which best represents a balanced equation
Answer:
option C is correct answer of this question
hope it helps
it is balanced equation
The example of a balanced chemical equation is 2H₂ + O₂ → 2H₂O. Thus, the correct option is C.
What is a balanced equation?A chemical equation is the symbolic representation of the chemical reaction in the form of symbols and chemical formulas such as H₂O. Chemical equation are generally are unbalanced however, these reactions can be balanced.
Balancing a chemical equation refers to balancing the stoichiometric coefficients on both the reactants and products side of the reaction which is because the chemical equation must obey the law of conservation of mass of the atoms.
2H₂ + O₂ → 2H₂O
This reaction has 4 H and 2 O atoms.
Therefore, the correct option is C.
Learn more about Balanced equation here:
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What is an amniotic egg?
Answer: The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. ... Within the chorion is the amnion, the membrane for which the amniotic egg is named.
Explanation:
Which sex would you expect to be the choosiest?
Answer:
Feamles but it depends what they're choosing from
Explanation:
Please Help!!!
How many ATP can be obtained from the complete beta-oxidation and metabolism of one 16-carbon fatty acid molecule?
Answer:
read ex
Explanation:
129 ATP
Earth’s rotation caused surface currents in the Northern Hemisphere to
A. Curve Clockwise
B. Move in straight lines
C. Curve Counterclockwise
D. Move in diagonal lines
What enzyme is needed to synthesize DNA by adding nucleotides to DNA that are complementary to the template?
A)
helicase
B)
nuclease
topoisomerase
D)
DNA polymerase
Answer:D
Explanation:
Seems right to me
Answer: DNA Polymerase
Explanation: DID IT ON USATP
what does transportation help in ascent of sap?
Evaporation of water molecules from the cells of a leaf creates a suction which pulls from the xylem cells of the roots.Thus,the transpiration helps in the absorption and upward movement of water and minerals dissolved in it from roots to leaves in the help of ascent of sap .
may this was ur answer
The role of the RNA-induced silencing complex (RISC) in RNA interference is to cleave tRNAs to slow the rate of translation. disrupt gene expression by cleaving mRNAs that are complementary to the guide strand of the RNA duplex that was introduced. cleave the introduced RNA duplex. disrupt gene expression by interfering with mRNA export to the cytoplasm. create a passenger strand to bind to the mRNA and keep the mRNA from being translated.
Answer:
disrupt gene expression by cleaving mRNAs that are complementary to the guide strand of the RNA duplex that was introduced
Explanation:
The RNA-induced silencing complex (RISC) is a ribonucleoprotein complex composed of proteins that associate with regulatory small non-coding RNAs (sncRNAs) such as, for example, microRNAs (miRNAs) and small interfering RNAs (siRNAs) in order to regulate gene expression by the RNA interference (RNAi) pathway. These sncRNAs (around 18-30 nucleotides in length) are complementary or nearly complementary to messenger RNAs, thereby they can bind to target mRNA sequences in order to trigger RNAi via mRNA degradation, translational repression, etc. The core component of the RISC complex is an evolutionary conserved Argonaute (Ago) protein that cleaves target mRNAs.
WILL GIVE BRAINLIEST!!!!!!
the last one I guess
Explanation:
i checked internet