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krok68 [10]
3 years ago
6

A measurement must include both a number and a what

Biology
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

a unit

Explanation:

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(06.05 MC) What is the correct order of blood flow from the heart to the lungs in the fetal circulatory system? a. Ductus venosu
marishachu [46]

Answer:

c. Ductus venosus, vena cava, heart, ductus arteriosus, arteries

Explanation:

The circulatory system consists of the heart and blood vessels. In a fetus, the circulation of blood is different from circulation after delivery largely due to the fact that the lungs are not in use, rather, the fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord.

Blood from the placenta is carried to the fetus by the umbilical vein. While some of this blood enters the fetal ductus venosus and is carried to the inferior vena cava, some others enter the liver. The blood from the inferior vena cava then moves into the right atrium of the heart. The foramen ovale, an opening between the right and left atrium in the fetus directs most of the blood flow from the right into the left atrium, thereby, bypassing pulmonary circulation. Most of the blood from the right atrium flows into the left ventricle and is pumped through the aorta to the rest of the body.  

Some of the blood from the right atrium however, enters into the right ventricle and is pumped into the pulmonary artery. The ductus arteriosus which is a special connection between the pulmonary artery and the aorta in a fetus, directs most of this blood away from the lungs and into the arteries.

4 0
3 years ago
Explain how the Ocracoke ponies arrived to the island
Aloiza [94]

Answer:

Explanation:

National Park Service has been keeping the native ponies on Ocracoke Island since the 1960s. It is believed that these ponies arrived and left by the ships. These ships required to lower their load thus they left the ponies on the Island. These ponies are known as Ocracoke ponies and also called as Banker ponies. These ponies share a link to old Spanish horses genetically. The unique characteristics of the ponies include one fewer lumbar vertebrae, greater bone density, short necks, wide foreheads, and one fewer rib.

3 0
3 years ago
An acid has which chemical in high abundance
11Alexandr11 [23.1K]
Hyaluronic acid, <span>also called </span>hyaluronan.
4 0
3 years ago
Remnants of osteons, which have been almost completely recycled by osteoclasts, are known as __________
Alex

Answer:

Lamellae

Explanation:

These lamellae are remnants of osteons whose matrix components have been almost completely recycles by osteoclasts. growth of the bone.

3 0
2 years ago
What are two proteins within cell growth that are internal factors?
TiliK225 [7]

DNA has sequences that mRNA finds the pair for (ex. DNA says AGC, RNA says UCG) 
with that, they only come in 3 nucleotide increments.
5 0
3 years ago
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