see the screenshot and answer the question

Answer:

Leaves have an increased surface area in order to increase light-harvesting and they are thin in order to increase the diffusion rate

Explanation:

Leaves have several adaptations to increase the photosynthesis rate. In the first place, leaves have a large surface area to increase light-harvesting and thus also increase photosynthetic energy conversion. Moreover, leaves are sufficiently thin to increase the gas exchange surface area, i.e., the entry of carbon dioxide (CO2) and the exit of oxygen from photosynthesis, which move by diffusion through stomata.

Answer:

a) Time = Distance/speed

Time = 30km/15km per hour

Time = 2 hour

b) Time = Distance/speed

Time = 30m/6m per sec

Time = 5 sec

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:

Answer:

because they were in the deep ocean where theres no plants

Answer:

Magnetism

Explanation:

The refrigerator doors are made of metal, and we use magnets to hold papers and photos on their surfaces. Magnets attract metals such as iron, cobalt, nickel, etc. That is due to the physical property of matter called magnetism, which is related to the attraction force generated by a magnetic field.

Answer:

Widen Margins occurs at the continental margin in the pacific ocean, so the answer is:

1. Widened Margins.

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.

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

Answer:

DNA makes a copy of itself during cell division.  The separation of the two single strands of DNA creates a 'Y' shape called a replication 'fork'. The two separated strands  act as templates for making the new strands of DNA.

Explanation:

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%

Answer:

The probability that the child will have type blood B equals 3/16.

Explanation:

Available data:

Cross: 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

    Phenotype

eukaryotic is the answer

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.

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

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.

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.

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.

Answer:

e commence is the right and ILY answer in the ptions

Answer:

Doctors use microscopes to spot abnormal cells and to identify the different types of cells. This helps in identifying and treating diseases such as sickle cell caused by abnormal cells that have a sickle like shape.

Answer:

B. These fossils provide evidence that evolution occurs over long periods of time

Explanation: The diagrams show different jawbones millions of years apart meaning that evolution took very long periods of time, I hope I'm correct

Answer:

the answer is B

Explanation:

i did the test on preformance

Answer:

the answer is b

Explanation:

if you need the explanation it is because the plant with the brown dots beside it is the plant producing the spores and the plant next to it is one of said spore growing into a gamete producing plant i honestly hope this helps

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 in which Schooling type of social behavior is shown in the image. Hence option C is correct.

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.

To know more Flock, click :

https://brainly.com/question/14024898

#SPJ7.

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.

Answer:

It's Positive.

Negative is when it reacts against the direction as a stimulus