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Telomeres ends serve to protect the coding DNA of the genome. When a telomeres shorten to critical lengths, the cell senescence and die off.

#25288697 - Telomeres ends serve to protect the coding DNA of the genom

Photo of elderly man on wheelchair and his private carer

#44670514 - Photo of elderly man on wheelchair and his private carer

Photo of nurse supporting old woman on wheelchair 版權商用圖片

#42654771 - Photo of nurse supporting old woman on wheelchair

Photo of nurse caring about senior lady with walking problems

#42689898 - Photo of nurse caring about senior lady with walking proble

Picture of father and son spending leisure time in park

#44670437 - Picture of father and son spending leisure time in park

Portrait of smiling elderly woman and helpful caregiver 版權商用圖片

#42654744 - Portrait of smiling elderly woman and helpful caregiver

Picture of caregiver helping old female on wheelchair

#42689811 - Picture of caregiver helping old female on wheelchair

Picture of woman in her third age writing exam

#46100310 - Picture of woman in her third age writing exam

Photo of senior widow reminiscing her dead husband

#50658939 - Photo of senior widow reminiscing her dead husband

University of the third age as a form of stimulation

#46100344 - University of the third age as a form of stimulation

Woman checking her skin in the mirror for signs of ageing and wrinkles pulling on the skin of her cheek

#97574959 - Woman checking her skin in the mirror for signs of ageing a

Closeup of the wrinkled hands of an old caucasian man holding pen and paper, wearing a green sweater

#74260759 - Closeup of the wrinkled hands of an old caucasian man holdi

Closeup of the wrinkled hands of an old caucasian man holding pen and paper, wearing a green sweater

#74260760 - Closeup of the wrinkled hands of an old caucasian man holdi

Life Loading Bar Concept

#78103707 - Life Loading Bar Concept

Telomerase is an enzyme that adds short DNA repeats to the ends (telomeres) of eukaryotic chromosomes, thereby preventing their shortening. Cartoon model, DNA in pink, RNA elongation template in cyan. 版權商用圖片

#116247875 - Telomerase is an enzyme that adds short DNA repeats to the

Female doctor on medical home appointment talking with elderly patient

#42419701 - Female doctor on medical home appointment talking with elde

Photo of happy father and son walking in park

#44670524 - Photo of happy father and son walking in park

Picture of female pensioner and her kind carer

#42418947 - Picture of female pensioner and her kind carer

Image of disabled old patient with walking zimmer

#43204555 - Image of disabled old patient with walking zimmer

Picture of worried aged feamle on medical consultation

#42420399 - Picture of worried aged feamle on medical consultation

Close up of woman holding aged female hand

#42418925 - Close up of woman holding aged female hand

Photo of aged woman during medical consultation at home

#42419702 - Photo of aged woman during medical consultation at home

Photo of disabled retired person and male carer outdoor

#44777104 - Photo of disabled retired person and male carer outdoor

Photo of volunteer in care home talking with old man 版權商用圖片

#49422800 - Photo of volunteer in care home talking with old man

Image of aged pensioner and her smiling nice caregiver

#42419299 - Image of aged pensioner and her smiling nice caregiver

Picture of senior ill male having support of his family

#49422771 - Picture of senior ill male having support of his family

Photo of retired people at university of the third age

#46100188 - Photo of retired people at university of the third age

Photo of elderly woman sitting on sofa with her carer 版權商用圖片

#60366315 - Photo of elderly woman sitting on sofa with her carer

Picture of lonely aged female holding photo from past

#50658937 - Picture of lonely aged female holding photo from past

Close up of medic holding aged patients hand

#42419281 - Close up of medic holding aged patients hand

Photo of senior students using computer as a learning tool 版權商用圖片

#46100186 - Photo of senior students using computer as a learning tool

Close up of senior students during written exam 版權商用圖片

#46100242 - Close up of senior students during written exam

#117123851 - Profile side view portrait of tired bored annoyed stylish o

Photo of mature nurse taking care about old patient 版權商用圖片

#43204611 - Photo of mature nurse taking care about old patient

Photo of grandson enjoying sunny day with grandfather in park

#44776809 - Photo of grandson enjoying sunny day with grandfather in pa

Close up of members ol learning group doing exercise

#46100184 - Close up of members ol learning group doing exercise

Picture of kind carer teaching old lady to use laptop 版權商用圖片

#42420557 - Picture of kind carer teaching old lady to use laptop

Senior women drinking tea during conversation in a nursing house

#107950097 - Senior women drinking tea during conversation in a nursing

manicure for an elderly woman. the beauty of old age. age skin.

#122023285 - manicure for an elderly woman. the beauty of old age. age s

manicure for an elderly woman. the beauty of old age. age skin

#122023260 - manicure for an elderly woman. the beauty of old age. age s

Tomato, banana and lemon in senescence, deteriorated 版權商用圖片

#80990920 - Tomato, banana and lemon in senescence, deteriorated

Fall in Central Park (NYC)

#117714096 - Fall in Central Park (NYC)

Chickpea - plantation - senescence

#80699794 - Chickpea - plantation - senescence

Wide shot of bright yellow foliage of aspen trees in autumn oak forest, Belgorod region in southern Russia 版權商用圖片

#94471678 - Wide shot of bright yellow foliage of aspen trees in autum

Wooden wall from boards as a background texture. 版權商用圖片

#79147186 - Wooden wall from boards as a background texture.

Wooden wall from logs of pine as a background texture.

#79147201 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147357 - Wooden wall from boards as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147505 - Wooden wall from boards as a background texture.

Jasmone molecular structure isolated on white

#118553572 - Jasmone molecular structure isolated on white

Wooden wall from logs of pine as a background texture.

#79730879 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79648516 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79648528 - Wooden wall from logs of pine as a background texture.

Midtown during the fall season from central park

#117714099 - Midtown during the fall season from central park

Methyl jasmonate plant stress signal molecule. Skeletal formula.

#96306383 - Methyl jasmonate plant stress signal molecule. Skeletal for

Wooden wall from boards as a background. Abstract texture for design.

#87435605 - Wooden wall from boards as a background. Abstract texture f

Wooden wall from logs of pine as a background texture.

#79147359 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79147362 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79147502 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147514 - Wooden wall from boards as a background texture.

Wooden wall from logs of pine as a background texture.

#79624648 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79732388 - Wooden wall from logs of pine as a background texture.

Jasmone molecular structure isolated on white

#118553571 - Jasmone molecular structure isolated on white

Jasmone molecular structure isolated on white

#118553573 - Jasmone molecular structure isolated on white

Jasmone molecular structure isolated on white

#118553577 - Jasmone molecular structure isolated on white

Wooden wall from logs of pine as a background texture.

#79648565 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147193 - Wooden wall from boards as a background texture.

Wooden wall from logs of pine as a background texture.

#79624659 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79730880 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147200 - Wooden wall from boards as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147583 - Wooden wall from boards as a background texture.

dry yellow rose macro, background

#118732302 - dry yellow rose macro, background

Wooden wall from logs of pine as a background texture.

#79797396 - Wooden wall from logs of pine as a background texture.

Jasmone molecular structure isolated on white

#118553579 - Jasmone molecular structure isolated on white

Wooden wall from boards as a background. Abstract texture for design.

#87435597 - Wooden wall from boards as a background. Abstract texture f

Wooden wall from logs of pine as a background texture.

#79147363 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147501 - Wooden wall from boards as a background texture.

Woman checking her skin in the mirror for signs of ageing and wrinkles pulling on the skin of her cheek

#97333552 - Woman checking her skin in the mirror for signs of ageing a

Wooden wall from logs of pine as a background texture.

#79726748 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79732396 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79142355 - Wooden wall from boards as a background texture.

Wooden wall from logs of pine as a background texture.

#79147503 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79633724 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79147187 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147507 - Wooden wall from boards as a background texture.

Woman checking her skin in the mirror for signs of ageing and wrinkles pulling on the skin of her cheek

#97300792 - Woman checking her skin in the mirror for signs of ageing a

Wooden wall from boards as a background texture. 版權商用圖片

#79147497 - Wooden wall from boards as a background texture.

Park bench in the autumn evening park

#92561237 - Park bench in the autumn evening park

Jasmone molecular structure isolated on black

#118553574 - Jasmone molecular structure isolated on black

Wooden wall from logs of pine as a background texture.

#79726743 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79853933 - Wooden wall from logs of pine as a background texture.

Galactose, alpha-D-galactopyranose, milk sugar molecule. Cyclic form. Structural chemical formula and molecule model. Vector illustration

#128375085 - Galactose, alpha-D-galactopyranose, milk sugar molecule. Cy

Jasmone molecular structure isolated on black

#118553575 - Jasmone molecular structure isolated on black

Wooden wall from logs of pine as a background texture.

#79147361 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147585 - Wooden wall from boards as a background texture.

Wooden wall from logs of pine as a background texture.

#79730885 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79732391 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79727586 - Wooden wall from logs of pine as a background texture.

Wooden wall from logs of pine as a background texture.

#79636160 - Wooden wall from logs of pine as a background texture.

Wooden wall from boards as a background texture. 版權商用圖片

#79147581 - Wooden wall from boards as a background texture.

Molecular structure of different elements. 向量圖像

#88183129 - Molecular structure of different elements.

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關於123RF

關於

特徵

博客

指導課程

服務

Corporate+

123rf合作夥伴計劃

123RF的增值經銷計劃

123RF聯盟計畫

法律規範

Legal

執照

隱私聲明

權力條規

123RF-Cookie政策

國際

Русский язык

Português (PT)

支持

需要幫助嗎？請聯絡您的客戶經理

@ 1 866 655 3733

聯絡

協助中心

聯繫我們

Follow us on Twitter

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