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mezya [45]
4 years ago
5

Why is the first breath of a newborn the most difficult ?

Biology
1 answer:
iogann1982 [59]4 years ago
3 0
The baby is used to getting what it needs through the placenta, which includes oxygen. The baby's lungs are initially filled with amniotic fluid.
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Within a decade of the introduction of a new insecticide, nearly all of the descendants of the target insects are resistant to t
scoundrel [369]
The most likely explanation for this phenomena is that this is a result of natural selection.

What actually happened?
When the insecticide was introduced, it killed all of the organisms that were vulnerable to it. However, there was a portion of the population that was immune. Since the immune individuals were the only ones that have survived and left offspring, after some generations in the population of this organism there were only their descendants that have the resistance to the insecticide.
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3 years ago
(Great Lakes) What is the relationship between the shrimp and the great blue Heron?
a_sh-v [17]
The answer would be: "predator-prey" relationship—in which the great blue heron is the predator and the shrimp is the prey.
4 0
4 years ago
What is most likely happen if an appropriate enzyme is added to a chemical reaction?
slavikrds [6]
The reaction rate will increase because enzymes are catalysts. Therefore, they speed up a reaction 
7 0
4 years ago
A taiga biome is different from a tundra biome because it has
8090 [49]

Answer:

A taiga biome is different from a tundra biome because it has trees.

Explanation:

The taiga has a thick forest of conifers such as pine and spruce, while in the tundra trees are absent completely.

3 0
4 years ago
The large, flat bone extending from the middle of the back upward to the joint where it attaches to the clavicle is called the?
Daniel [21]

The large, flat bone extending from the middle of the back upward to the joint where it attaches to the clavicle is called the scapula.

Clavicle is the collar bone. It is a long and thin bone with slight curve that works to connect the arms to the body. It is a part of the shoulder. It allows free movement of the shoulder. The clavicle is attached with the sternum through the sternoclavicular joint.

Scapula is a triangular-shaped bone. it is present at the upper back portion. It us surrounded by various muscles that allow the free movement of the shoulder. The types of motion, scapula helps in are: protraction, retraction, elevation, depression, upward rotation, and downward rotation.

To know more about clavicle and scapula ,here

brainly.com/question/12926657

#SPJ4

6 0
2 years ago
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