_____ feedback is when the body reacts in the same direction as a stimulus.
Negative
Positive
Answer:
It's Positive.
Negative is when it reacts against the direction as a stimulus
Sound energy is usually mearsured y it pressure and intensity, in special units called ____ and ___.
Help I don't know please
Answer:
We measure sound intensity (also referred to as sound power or sound pressure) in units called decibels. Decibels (dB) are named in honor of Alexander Graham Bell.
Hope its helpful..
Thank you
Which statement best describes the similarities between insects and animals? (2 points)
a
Insects and animals are all born in a live birth from the mother.
b
The infants of all insects and animals look similar to their parents.
c
The life cycles of insects and animals all start from a fertilized egg.
d
Insects and animals develop an exoskeleton as they grow, which protects them.
Question 18 (2 points)
(08.03 MC)
During their life cycle, a bee goes through complete metamorphosis while a grasshopper goes through incomplete metamorphosis. What is the main difference between the life cycles of a bee and a grasshopper? (2 points)
a
The grasshopper forms a cocoon, while the bee forms a chrysalis.
b
A grasshopper starts its life as a fertilized egg, while the bee doesn't.
c
A bee goes through three stages, while a grasshopper goes through four stages.
d
A bee goes through a pupa stage, while the grasshopper goes through a nymph stage.
Question 19 (2 points)
(08.03 MC)
Samantha recorded observations on the similarities between the life cycle of an eagle and the life cycle of a moth that undergoes complete metamorphosis. Which observation is Samantha wrong about? (2 points)
A moth and an eagle both start their life cycle as a fertilized egg.
A moth and an eagle both hatch from an egg outside of their mother.
A moth and an eagle both undergo complete metamorphosis with significant change during development.
a
I
b
I and II
c
II and III
d
III
Question 20 (2 points)
(08.03 HC)
A new insect is discovered, and you want to know whether the insect goes through complete or incomplete metamorphosis. The insect lays eggs, and the eggs develop into an insect that has colorful wings and long thin legs. What observations would you use to prove that the insect goes through complete metamorphosis? (2 points)
a
Observe at what stage the bugs are able to reproduce. If they reproduce quickly, they go through incomplete metamorphosis.
b
Observe how long it takes the insect to develop. The insect that goes through incomplete metamorphosis will develop quicker.
c
Observe how the insect changes as it develops. If the insect develops a cocoon, it is likely going through complete metamorphosis.
d
Observe what the insect eats over time. If it eats other bugs, it likely goes through complete metamorphosis please answer all I give brainlest
Answer:
1. c . The life cycles of insects and animals all start from a fertilized egg.
2. d . A bee goes through a pupa stage, while the grasshopper goes through a nymph stage.
3. b . I and II
Explanation:
The egg fertilization is very important for the emergence of almost all organisms. If the egg is fertilized then it will change into an organism otherwise no organism is produced from that unfertilized egg. The bees has four distinct life stages i.e. the egg, larva, pupa and adult whereas grasshopper has three stages i.e. egg, nymph, and adult. A moth and an eagle both start their life cycle as a fertilized egg and moth and an eagle both hatch from an egg which is laid by the mother outside of their body..
Answer:
It is 1 and 2 ethier one of those hope you get it right! (:
Which blood type can give to all the other blood types?
Answer:
Type O
Explanation:
Type O can donate red blood cells to anybody. It's the universal donor. Group AB can donate to other AB's but can receive from all others.
The fertilization of ovules from Plant Q by pollen from Plant R results in the production of seeds. What percent of the genes in each offspring's chloroplasts will have been inherited from plant R?
A: 0%
B: 25%
C: 50%
D: 100%
Answer:
The correct answer is - option A. 0%
Explanation:
The zygote formation or fertilization in flowering plants occurs by the fusion of pollen of one plant with the ovum of another plant of the same species normally. This process includes the exchange of an equal amount of the genetic contribution from both plants.
The egg cell of the mother is responsible for the mitochondria and chloroplast of the progeny so the percentage of chloroplast genes provided via Plant R is 0% as ovum and egg cell comes from only plant Q.
percentage of chloroplast gene inherited from R plant is a)0%
how do each level of organization differ from another one?
Answer:
The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Which term describes a prokaryote?
A. stem cell
B. unicellular
C. eukaryotic
D. specialized
eukaryotic is the answer
Brown fur (B) is dominant over white fur (b). The diagram below shows the crossing of two parents with brown
fur.
father
B b
B
mother
B
What percentage of the offspring are likely to have white fur?
100%
75%
50%
0 0%
List two adaptations of plant life in the tropical rain forest.
Answer:
Having their roots in the ground and climbing high into the tree canopy to reach available sunlight.
Lianas start life in the rainforest canopy and send roots down to the ground.
Explanation:
can somone plzzz answer this question. Every single in a plane crash but a couple.
i willl give brainlest
Answer:
They survived the plane crash because all the people who died were single, who have a less likely chance to survive because they are not in a relationship.
Explanation:
Riddles
Hope that helps
In humans, dimples (D) are dominant over no dimples (d). Curly hair (A) is dominant over
straight hair (a). Paul, who is heterozygous for dimples and curly hair, marries Jane, who
has curly hair but does not have dimples. Jane's mother had straight hair, but her father had
curly hair. Paul and Jane had a child named Peter, who had curly hair but did not have
dimples.
Answer:
1. ddaa
2. DdAa
3. One from each parent
4. False
5. 0.25
6. 0.25
7. 0.25
8. 0.5
Explanation:
The remaining part of the question is
1. What is Jane's genotype?
2. What is Paul’s genotype?
3. Where did Jane get her gene for curly hair? From her mother or father?
4. True or False: Jane's mother was heterozygous for curly hair?
5. What fraction of Paul and Jane's children should have curly hair and dimples?
6. What fraction of their children would have straight hair and no dimples?
7. What fraction should have dimples but not curly hair?
8. What is the probability of getting any offspring with dimples
Solution
1. Genotype of Jane's mother -ddaa
2. Genotype of Paul (heterozygous for dimples and curly hair) – DdAa
3. One “a” gene from mother (whose genotype for hair was aa) and second “a”gene from father (whose genotype was Aa)
4. False. She was having straight hair
5. Offspring of Paul and Jane
DdAa (4), Ddaa (4), ddAa(4) and ddaa (4)
4 out of 16 offspring will have curly hair and dimples = 0.25
6. ddaa, 4/16 = 0.25
7. Ddaa , 4/16 = 0.25
8. Ddaa, DdAa, 8/16 = 0.5
identify the organism that is benefiting from the relationship in Finding Nemo
Purchasing through a mobile phone is called .
m commerce
data encryption
secure server
global distribution
e commerce
Answer:
e commence is the right and ILY answer in the ptions
Allotropes of carbon.give examples
Answer:
They are three.
Explanation:
i) Graphite
ii)Diamond
iii)Fullerenes
what is psychological aspect of ageing
Answer:
Explanation: Psychological aging focuses on sensory processes, perception, coordination, mental capacity, human development, personality, and coping ability as they are affected by aging. In most societies, older people are generally viewed as a group of with common characteristics and needs. Older age is usually viewed as a state, a stage or an event.
Ageing - Physical and Psychological Changes. Pathological Ageing
The process of aging has been around as long as life itself. All living organisms pass through three broad stages from conception to death, which are maturation, maturity and aging. Aging affects everyone because nearly everyone has the potential to grow old and all the societies in which we live have older members (Macdonald, 1997). Gerontology is the use of reason to understand aging. The term was used to refer to the scientific study of aging, but nowadays it includes the study of aging using views from other disciplines such as humanities, social policy and human services. To correctly understand aging, knowledge from a variety of sources is needed, therefore gerontology includes the results of research on aging from all academic disciplines and fields of professional practice. There are four interrelated aspects to the study of aging, which are, physical, psychological, social psychological and social. The study of physical aging examines the causes and consequences of the body’s declining capacity to renew itself and the means for preventing, treating, or compensating for illness or disability caused or related by physical aging (Atchley, 1997). Psychological aging focuses on sensory processes, perception, coordination, mental capacity, human development, personality, and coping ability as they are affected by aging.
In most societies, older people are generally viewed as a group of with common characteristics and needs. Older age is usually viewed as a state, a stage or an event. In reality, older people are not a homogenous group, but rather highly diverse individuals. The factor that is common to all older people is the accumulation of more numerous life experiences over a greater period of time than those of younger people (Bowling & Dieppe, 2005). Aging is defined as the process of becoming older, a process that is genetically determined and environmentally modulated. Aging is something that everyone will have to experience. Everyone will have to grow old. Normal ageing brings about changes in the body and mind, therefore both physical and psychological. These symptoms are all part of ageing, but also some might not be due to normal aging but rather due to diseases, which can be treated or remedied. Therefore, it is important to learn about normal ageing in order to be able to distinguish between disease and normal ageing so to be in a position to seek proper and early treatment for the disease.
Changes related to normal Ageing
Vision
Vision is usually impaired due to ageing. These can be due to presbyopia. There can also be overflow of tears due to blockage of drainage ducts and well as old people may have dry eyes (Chopdar et al., 2003). In order to minimise such problems it is important to check for presbyopia and wear suitable lens. Also it is important to seek a doctor’s advice on the need of any eye drops, only against doctor’s prescription.
Hearing
Due to ageing hearing may be impaired. Hearing loss is common due to old age (Bates, 1993). In order to be able to adjust due to this condition lifestyle modifications may help to overcome this situation. This may include the consideration of hearing aids. Also the installation of loudspeakers to devices such as door bells and telephone units.
Sensation
Sensation also if affected due to normal ageing. Old people have a blunted touch sensation, especially near the tips of the fingers and toes. Also there is a blunted sensation of temperature (Macdonald, 1997). Therefore, in order to counter act these changes, it is important for old people to wear well fitted shoes and take good care of their feet. If any wounds are present these should be inspected regularly. Also it is important to wear suitable clothes according to the day’s weather conditions.
Contrast the major differences between the organization of DNADNA in viruses and bacteria versus eukaryotes. Drag the appropriate characteristics to their respective bins. ResetHelp contain a mixture of both unique and repetitive DNADNA sequencesconsist mostly of noncoding DNADNA sequencesconsist mostly of coding DNADNA sequencescontain large amounts of DNADNAshort, circular or linear DNADNA moleculescontain relatively little amount of DNADNA-associated proteinsconsist of mostly unique DNADNA sequencescontain a large amount of DNADNA-associated proteins Eukaryotic genomes Viral or bacterial genomes
Answer:
Quantity, information content, packing and replication of chromosome.
Explanation:
Quantity, information content, packing and replication of chromosome are the major differences that is present between the organization of DNA in viruses and bacteria as compared to eukaryotes. The quantity of DNA in bacteria and virus is less than eukaryotes. In virus and bacteria, DNA is arranged into a single circular chromosome while on the other hand, in eukaryotes, DNA is arranged into several linear chromosomes.
I really need help on this please help
Answer:
The Mad Scramble for Africa cartoon represents the European countries grabbing and pulling for their share of the continent and sought to control the region.
Explanation:
In the early 1880s, many European countries including Portugal, France and the British Empire have colonies on the African continent but with the new countries and unified states, these powers became interested in the part of the profitable land.
In order to get more of a share of the land of the continent in order to control the continent all these old and new countries grabbing and pulling like a mad scramble for countries to take more and more land.
The image shows a group of fish.
Which type of social behavior is shown in the image?
Oherding
O dividing labor
O schooling
O flocking
The image shows a group of fish in which Schooling type of social behavior is shown in the image. Hence option C is correct.
What is Schooling?In biology, a group of fish that stay together for social reasons are shoaling, and if the group is going from one place to other in the same direction in a coordinated manner then it is called as schooling.
Flocking is a behavior in which objects move or work together as a group. this is seen in the birds, when a group of birds goes for a work we call it as flock of birds.
when a subgroups of animal is performing different tasks in a big group is called as dividing labor behavior.
In this picture we can see that a group of fish is swimming from one place to other therefore it is called as schooling social behavior of the fish. Hence option C is correct.
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Which does not occur at the continental margin in the Pacific Ocean?
1. widened margins
2. volcanic activity
3. earthquakes
4. plate interactions
Answer:
Widen Margins occurs at the continental margin in the pacific ocean, so the answer is:
1. Widened Margins.
the flow of energy into and out of a system is called
Answer:
When energy flows out of a system, it must all flow into the surroundings.
When energy flows out of a system, ΔEsystem is negative.
When energy flows into the surroundings, ΔEsurroundings is positive.
Therefore,
─ ΔEsystem= ΔEsurroundings
1. If an animal cell is placed into a solution whose concentration of dissolved substances is
higher than that inside the cell(osmosis). What will happen?
Answer:
Water will move out of the cell causing it to eventually shrink.
Explanation:
The tonicity of solutions determine the direction of water movement. Hypertonic solution is a solution whose concentration is higher than that of its external solution while hypotonic solution is a solution whose concentration is lower than that of its external solution. In this case, an animal cell is placed into a solution whose concentration of dissolved substances is higher than that inside the cell.
This means that the extracellular solution is HYPERTONIC to the cell's solution. Based on OSMOSIS, which is the movement of water from a region of lower solute concentration (high water conc.) to a region of higher solute concentration (low water conc.) via a semipermeable membrane, water will move out of the animal cell into the extracellular solution via the cell membrane (semipermeable membrane).
This movement of water out of the cell will eventually cause it to shrink and die.
Which makes viral infections difficult to defeat?
Answer:
needles used and scars
Explanation:
Answer:
Viruses live outside of cells
Explanation:
Explain how the discoveries by Rosalind Franklin
helped Watson and Crick build an accurate
model of DNA.
Answer:
In 1951 Franklin joined the Biophysical Laboratory at King’s College, London, as a research fellow. There she applied X-ray diffraction methods to the study of DNA. When she began her research at King’s College, very little was known about the chemical makeup or structure of DNA. However, she soon discovered the density of DNA and, more importantly, established that the molecule existed in a helical conformation. Her work to make clearer X-ray patterns of DNA molecules laid the foundation for James Watson and Francis Crick to suggest in 1953 that the structure of DNA is a double-helix polymer, a spiral consisting of two DNA strands wound around each other.
the Hawaiian Islands are a bunch of volcanoes formed as a result of a(an)
In which stage of the cell cycle does the cell die
A) interphase
B) mitosis
C) apoptosis
What types of things do ocean currents carry
I do not know how in-depth you want this...
The currents carry nutrients and food to sea life that live permanently attached in one place, it also carries reproductive cells to ocean life, and currents carry warm water to the cooler water along with cooler water to warmer water.
Put yourself in the role of each of the following people:
A concerned citizen
A farmer
An Ohio Environmental Protection Agency administrator
A state legislator
Come up with at least one suggestion for reducing the nitrogen load to the Oak Openings while playing each role.
Answer:
idc
Explanation:
i dont understand bc i dont have this class
Which of the following best describes the cause of bloat in cattle?
Gas is trapped in the rumen stomach and forms a foam that is difficult to pass.
Flies and ticks cause irritation of the eyes and skin and lead to infected rashes.
Bacteria infect the uterus of the mother and cause premature or aborted births.
Parasites are lodged in the digestive tract from eating from damp, contaminated fields.
11. Why is the mantle of the Earth described as a semi-solid?
A) The mantle is composed of some solid pockets and some liquid pockets.
B) The mantle is solid toward the crust and liquid toward the outer core.
C) The mantle is liquid during warmer months and solid during colder months.
D) The mantle is so hot that it allows the rocky material to flow gradually.
Answer:
D) The mantle is so hot that it allows the rocky material to flow gradually.
Explanation:
Accelerate 2022
The mantle is so hot that it allows the rocky material to flow gradually. The correct option is D.
What are the layers of Earth?The crust, mantle, outer core, and inner core are the four principal parts that make up the earth's structure.
Each layer has a distinct chemical make-up, physical state, and potential to affect life on the surface of the Earth.
The crust, mantle, and core are the three layers that make up the earth. This stratum of the earth lies on the surface and is composed primarily of granite and basalt solid rock.
Oceanic and continental crust are the two different types. The majority of the oceanic crust is made of basalt and is denser and thinner.
The Earth's mantle is regarded as being semi-solid. Because the mantle is so heated, the rocky material can flow gently.
Thus, the correct option is D.
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The very rare Bombay blood phenotype in humans results in blood type O because of the lack of both the A and B antigens in individuals who are of hh genotype. This genotype results in blood type O regardless of the genotype at the unlinked I locus. If two parents are both of I A I B Hh genotype, what is the probability that their child will have type blood B
Answer:
The probability that the child will have type blood B equals 3/16.
Explanation:
Available data:
Individuals with the rare Bombay blood phenotype lack both the A and B antigens in individuals and/or are of hh genotype.Cross between two parents that are both of I A I B Hh genotypeCross: IAIB Hh x IAIB Hh
Gametes) IAH, IAh, IBH, IBh
IAH, IAh, IBH, IBh
Punnett square) IAH IAh IBH IBh
IAH IAIAHH IAIAHh IAIBHH IAIBHh
IAh IAIAHh IAIAhh IAIBHh IAIBhh
IBH IAIBHH IAIBHh IBIBHH IBIBHh
IBh IAIBHh IAIBhh IBIBHh IBIBhh
F1) Genotype
1/16 IAIA HH 2/16 IAIAHh 1/16 IAIAhh 2/16 IAIBHH 4/16 IAIBHh 2/16 IAIBhh 1/16 IBIBHH 2/16 IBIBHh 1/16 IBIBhhPhenotype
3/16 Blood type A 6/16 Blood type AB 3/16 Blood type B 3/16 Blood type 0