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Nataly [62]
3 years ago
11

If you have 100 grams of different substances, the least dense substance would have which volume? 10 l 100 l 1 l 0.10 l

Biology
1 answer:
7nadin3 [17]3 years ago
4 0
100 L
: Begin by finding the density for each.  Take the mass and divide this value by the volume.
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How is it possible for one twin to get skin cancer but the other one doesn´t
tia_tia [17]

Looking at most newborn twins squirm contentedly in their cribs, you'd never guess that some were recently in peril. That's because carrying multiples raises the risks that a woman can suffer complications before she actually delivers.

Many twins are miscarried early in the pregnancy, often before a woman even knows she's pregnant. As reported in the International Journal of Fertility, only about one in eight embryos that starts as a twin is born as a twin. If they do survive, twins are usually born healthy. However, they are still more likely than other babies to have birth defects or to be born prematurely or underweight.

Carrying twins can be hard on you, too. You'll be more likely to develop pregnancy-related high blood pressure or diabetes. And there's a greater likelihood you will have a cesarean section when you deliver.

If you're carrying twins, some simple lifestyle changes and good prenatal care may help you reduce the likelihood of the following complications.

Low birth weight

Because they have to share nutrients and living space, newborn twins tend to be smaller than single babies. Even full-term twins often weigh less than 5-1/2 pounds each, making them vulnerable to a variety of health problems. You can help your babies reach a healthy size by making sure you put on enough weight during pregnancy. Try to eat 300 calories more each day than you would if you had a single baby (about 2,700 calories in total). If you had a healthy weight before pregnancy, you should aim to put on about 35 or 45 pounds.

Unequal size

Twins don't always share equally. In roughly 30 percent all twin births, one baby will be larger than the other. Some studies suggest that if one of your babies is at least 25 percent heavier than the other, one or both of them may be more likely to have breathing problems or need intensive care. Your doctor will track the growth of both your babies throughout your pregnancy. The first signs of unequal growth usually appear in the third trimester.

Twin transfusion syndrome

Twin transfusion syndrome poses a dangerous threat to identical twins who share a single placenta. It's normal for such twins to exchange blood during a pregnancy. But in about 20 percent of cases, one twin starts pumping large amounts of blood to the other twin, putting both of them at risk. In severe cases, the twin receiving the extra blood may develop heart failure while the other twin becomes dangerously anemic. Early diagnosis and treatment can slow the abnormal blood flow and lower the risk of complications.

Birth defects

Birth defects are common in twins, especially identical twins. Taking folic acid before and during pregnancy can help prevent neural tube defects. As reported in the medical journal The Lancet, however, about 10 percent of all identical twins are born with a birth defect such as a heart problem, a shortened limb, a club foot, or a dislocated hip (the conditions listed are linked to having less space in the uterus and would not be affected by folic acid.) Most of these conditions are treatable, however.

Risks to the mother

Your doctor will check you regularly throughout the pregnancy for signs of high blood pressure or diabetes. When detected early, both of these conditions can be controlled before they have a chance to threaten your pregnancy.

Special care

Carrying twins means you'll probably get extra attention from your doctor throughout your pregnancy. The doctor may suggest cutting back on activities between the 20th and 30th week of pregnancy, even if you haven't had any signs of labor. Many physicians also recommend an extra monitoring check on the babies' heart rate and movement, such as an ultrasound or nonstress test. A biophysical profile, which checks on heart rate, movement, and the amount of amniotic fluid in your body, might also be indicated. If you do go into labor prematurely, your doctor may suggest drugs to stop the labor or use corticosteroids to speed up the development of the babies' lungs.

It's possible that you may be able to deliver twins vaginally. But if the labor is difficult, the birth canal is too narrow, or one or both of the infants is in the breech position, you may have to undergo a c-section, in which the babies are delivered through an incision in your uterus. Talk to your doctor about what you can do to prepare for delivery.

Twins are a special challenge, both before birth and after. For now, your job is to stay healthy and get top-quality prenatal care. Two important people are counting on you.

Does this help lol :D

4 0
2 years ago
Read 2 more answers
5. What two systems are primarily involved in processing food? *
quester [9]

B and D

hoped i helped

6 0
3 years ago
When magma or melt solidifies it formsrocks. If a pre-existing rock is exposed to extreme heat or pressure its physical properti
Naily [24]

Answer:

When magma solidifies it forms igneous rocks. If a pre-existing rock is exposed to extreme heat or pressure its physical properties can change, forming a metamorphic rock. Rocks derived from the weathered grains of other pre-existing rocks through lithification are sedimentary rocks.

Explanation:

The naturally occurring structure that is formed on the Earth's crust and is composed of a single mineral or an aggregate of several minerals is known as a rock. The classification of rocks on the basis of their formation is igneous rocks, sedimentary rocks, and metamorphic rocks.

Igneous rocks: They are formed by the slow or rapid cooling and then solidification of molten magma on the Earth's crust or seabed. The two types of igneous rocks are intrusive igneous rocks, which contain large crystals formed by the slow cooling of magma below the Earth's surface (granite, gabbro, diorite, pegmatite, etc) and extrusive igneous rocks, which contain small crystals formed by the fast cooling of magma that reached on the Earth's surface (basalt, obsidian, pumice, tuff, etc).

Sedimentary rocks: They are formed by the accumulation and lithification (compaction and cementation of accumulated sediments) of sediments created from the weathering of existing rocks or fragments of minerals and organisms over time. The different types of sedimentary rocks are clastic sedimentary rocks, which are formed from the fragments of other weathering rocks (conglomerate, sandstone, mudstone, siltstone, etc), chemical sedimentary rocks, formed from the dissolved materials precipitated from solution (rock salt, oolitic limestone, gypsum, etc) and organic sedimentary rocks, created from the accumulation of debris formed from plants or animals (limestones, coal, dolomites, etc).

Metamorphic rocks: They are transformed rocks formed from the existing rocks that are subjected to large pressures (regional or dynamic metamorphism) and temperatures (contact or thermal metamorphism). The basic types of metamorphic rocks are foliated metamorphic rocks that have a layered or banded appearance (gneiss, schist, etc) and non-foliated metamorphic rocks that do not have a layered (quartzite, hornfels, marble, etc).

4 0
3 years ago
IN every energy transformation some blank is released
Charra [1.4K]
In every energy  transformation, some THERMAL ENERGY is released.

When you climb a rope, you change CHEMICAL ENERGY INTO KINETIC ENERGY.

 In the muscles cells in your body, CHEMICAL ENERGY is changed into KINETIC ENERGY.

Energy can neither be created nor destroyed, because of this, energy usually remain constant but it can be converted from one form to another.
i just had to do this  lol


7 0
3 years ago
What is the action force and reaction force of walking
RoseWind [281]
That's hard. The action might be when you go to lift your feet off the ground and the reaction force is letting your feet touch the ground again while taking a stride. Hope this helps.
8 0
3 years ago
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