Biology, asked by Himanshukatoch6659, 9 months ago

What is placenta? Mention its role.Class X

Answers

Answered by ishaandesh

Answer:

The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The placenta attaches to the wall of your uterus, and your baby's umbilical cord arises from it.

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Answered by Anonymous

Answer:

The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The placenta attaches to the wall of your uterus, and your baby's umbilical cord arises from it
Explanation:

$</p><p></p><p><!DOCTYPE html> <html lang="en"> <head> <title>Shinchan</title> </head> <body> <div class="face"> <div class="forhead"></div> <div class="cheeks"></div> <div class="ear"></div> <div class="eyebrow left"></div> <div class="eyebrow right"></div> <div class="eye left"></div> <div class="eye right"></div> <div class="mouth"></div> <div class="shy"></div> <div class="shy right"></div> </div> <style> body { background:#00FFFF } .face { height: 600px; width: 350px; position: relative; margin: auto; } .face:before { content:''; background:black; height:122px; width:95px; position:absolute; z-index:6; left:210px; top:29px; border-radius:100% 190% 100% 0%; transform: rotate(-20deg); } .face:after { content:''; width:230px; height:180px; background:black; content:''; transform: rotate(-8deg); position:absolute; border-radius:100% 160% 100% 0%; left:70px; bottom:-14px; top:10px; z-index:5; } .forhead, .forhead:after { content: ''; width: 220px; height: 181px; background: #fbc6a3; content: ''; transform: rotate(-3deg); position: absolute; border-radius: 60% 120% 50% 0%; left: 67px; bottom: -14px; top: 21px; z-index: 6; } .forhead:after { width: 160px; height: 150px; border-radius: 150% 174% 159% 100%; transform: rotate(-20deg); top: 13px; left: 59px; border-top: 15px solid #fbc6a3; } .forhead:before{ background:#fbc6a3; width:60px; height:10px; content:''; position:absolute; z-index:7; left:105px; top:9px; transform: rotate(13deg); border-radius:100% } .ear { width:60px; height:50px; background:#fbc6a3; z-index:7; position:absolute; border-radius:300% 190% 200% 100%; transform: rotate(-20deg); top:110px; left:285px } .cheeks { background: #fbc6a3; width: 280px; height: 100px; border-radius: 50px 0px 50px 40px; transform: rotate(-3deg); position: relative; content: 'a'; top: 108px; left:10px } .cheeks:after { width: 297px; height: 100px; background: #fbc6a3; content: ''; transform: rotate(-3deg); position: absolute; border-radius: 100% 100% 100% 100%; left: 1px; bottom: -14px; } .eye { width:40px; height:40px; position:relative; background:black; border-radius:100%; animation: close-eye 4s none .2s infinite; } .eye:after { content:''; position:absolute; background:white; width:15px; height:15px; border-radius:100%; left:17px; top:12px; } .eye:before { content:''; position:absolute; width:70px; height:60px; border-radius:100%; border-top:2px solid black; left:-20px; margin-top:-20px; } .eye.left,.eye.right { position:absolute; top:80px; left:100px; z-index:10; } .eye.right { left:190px; top:90px; } .eyebrow { animation: eyebroani 2s linear .2s infinite; } .eyebrow,.eyebrow:after { position:absolute; width:20px; height:60px; background:black; z-index:8; border-radius:15px; transform: rotate(40deg); top:10px; left:90px; } .eyebrow:after { content:''; transform: rotate(-100deg); left:19px; margin-top:-23px; top:auto; } .eyebrow.right { left:180px; top:8px; transform: rotate(50deg); } .mouth { position:absolute; width:40px; height:40px; background:#76322f; border-radius:100%; top:180px; left:50px; z-index:8; } .shy { position:absolute; width:0px; height:0px; border-radius:100%; opacity:0; box-shadow: 0px 0px 40px 20px red; z-index:8; left:35px; top:160px; animation: shy 10s linear .2s infinite; } .shy.right { left:170px; top:180px; } @keyframes eyebroani { 0% {margin-top:auto} 10% {margin-top:-10px} 20% {margin-top:auto} 30% {margin-top:-10px} 40% {margin-top:auto} 100% {margin-top:auto} } @keyframes shy { 0% {opacity:0} 10% {opacity:0.2} 90% {opacity:0.2} 100% {opacity:0} } @keyframes close-eye { 0% { height: 40px; margin-top: auto; overflow: auto; } 5% { height: 2px; margin-top: 20px; overflow: hidden; } 5.1% { height: 40px; margin-top:0; overflow:visible; } } </style> </body> </html></p><p></p><p></p><p>$

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