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Harlamova29_29 [7]
2 years ago
6

Which of the following contains organ systems?

Biology
1 answer:
shepuryov [24]2 years ago
6 0

Answer:

Organism

Explanation:

The other options are all smaller than an organ system.

A cell is the smallest. Many cells make a tissue, many tissues form an organ and many organs form an organ system. Many organ systems form the organism :))

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You are trying to ventilate an​ 18-month-old baby who has stopped breathing. You have laid him down on a flat surface to ventila
taurus [48]

Answer:

D. tip his head back farther to open his airway.

Explanation:

Tilting the head farther back moves the tongue away from the back of the throat, allowing air to enter the lungs.

3 0
3 years ago
Which of the following is an example of homeostasis? A. During a time of high stress, Justin's heart races, his muscles tense, a
pychu [463]

Answer:

C.

Explanation:

Homeostasis refers to the tendency for the human body to attempt to maintain a certain state even during changes in environment, activity, intake, etc. Options A, B, and D all refer to instances where the body departs from its usual state. While the scenario in Option C does describe a change in environment, it also describes the reaction of the body that brings its internal systems back to a certain state of fluid level.

5 0
3 years ago
When oxygen is plentiful inside a skeletal muscle cell, what happens to the pyruvic acid that is formed during glycolysis?
Iteru [2.4K]

Answer:

d. it diffuses into mitochondria to be broken down to generate ATP

Explanation:

When enough oxygen is available in the muscle cells, pyruvate produced by glycolysis enters the mitochondrial matrix. Once inside the mitochondria, pyruvate is decarboxylated into acetyl CoA. The reaction is catalyzed by the enzyme complex pyruvate dehydrogenase. Acetyl CoA then enters a sequence of reactions called Kreb's cycle and is broken down into CO2 and H2O. The energy released during these reactions is stored in the form of NADH and FADH2.

The NADH and FADH2 are oxidized by giving their electrons to O2 via electron transport chain. During this oxidation, the proton concentration gradient is generated across the inner mitochondrial membrane which in turn drives the process of ATP synthesis.

4 0
3 years ago
The magnets point North when the Earth's magnetic field has (p2)<br><br>need some help :)​
Natali5045456 [20]
<h2><u>EARTH'S MAGNETIC FIELD</u></h2>

The magnets point North when the Earth's magnetic field has?

<h2><u>ANSWER</u></h2>

I think the best answer for this question is Magnetic Reversal or Geomagnetic Reversal.

In geomagnetism, the term "geomagnetic reversal" also known as 'flip', is the process by which the North pole becomes South pole and the South pole transforms into North pole.

<h2><u>THE MAGNETIC REVERSAL</u></h2>

The reversals happen on rare occasions when iron molecules start moving towards the opposite direction as other iron molecules around them within the Earth's spinning outer core.

7 0
2 years ago
1. According to the graph below, what temperature will result in the highest rate of photosynthesis? A. 5°C
UNO [17]
<h3>✽ - - - - - - - - - - - - - - -  ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ It would be D. 25 degrees. This is because there was the highest oxygen  flow at this temperature meaning that the rate of photosynthesis was higher.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

8 0
3 years ago
Read 2 more answers
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