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Simora [160]
2 years ago
13

Write in brief about siluroid fish. ....5 marks question ​

Biology
1 answer:
erastovalidia [21]2 years ago
8 0
It is a fish of Oder that compromises catfishes.
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Need helpwith this question plzz
never [62]

You can download answer here

tinyurl.com/wpazsebu

5 0
3 years ago
Read 2 more answers
(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
_____ is a public relations strategy that involves getting a product, service, or company name to appear in a movie, television
atroni [7]

Answer:

product placement

Explanation:

4 0
3 years ago
What creates a positive charge inside the cell during a nerve impulse?
sergejj [24]

Answer:

a gated sodium channels open and sodium ions flood into the cell

8 0
3 years ago
In men, the gene for baldness acts as a dominant gene and in women it acts as a recessive gene. A bald man who father was not ba
gogolik [260]
So: both parents' genotypes (concerning baldness gene) are the same: Bb. Possible genotypes of an offspring: BB, Bb, Bb, bb . bb means non-bald girl or boy. Bb means bald boy or non-bald girl. BB means bald boy or girl. there is 25% chance of conceiving a child with a genotype BB. But there is also 50% chance of conceiving a girl. So the answer is: 25% x 50% = 12,5%
5 0
3 years ago
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