BIOLOGY HIGH SCHOOL

An important aspect of safety when weight training and lifting heavy weight is
Please help

Answers

Answer 1
Answer: Don't hyperventilate (breathe in and out fast) or hold your breath when you lift heavy weights. You may faint and lose control of the weights. ... Don't lift heavy weights without spotters. Don't lift more than you know you can lift safely.

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Which environmental hazard is directly related to nuclear power production?

Answers

Radioactive wastes and spent nuclear fuel are to be contained and isolated properly for a long period of time because when properly contained and controlled it pose dangers to the environment and the people with its very high radioactivity. One hazard it may pose to the environment is mutation. 

The environmental hazard directly related to nuclear power production is the risk of radioactive contamination and potential nuclear accidents.

Which environmental hazard is directly related to nuclear power?

Nuclear power production involves the use of nuclear reactors to generate electricity. While nuclear power is a low-carbon energy source, there are unique environmental hazards associated with it. The primary concern is the potential release of radioactive materials into the environment.

Furthermore, the long-term storage and disposal of nuclear waste generated by nuclear power plants are ongoing environmental challenges. Radioactive waste materials remain hazardous for extended periods, requiring proper containment and management to prevent environmental contamination.

It's worth noting that with proper safety measures and regulations, the risks associated with nuclear power can be minimized. However, the potential for environmental hazards related to radioactive contamination and nuclear accidents is an inherent concern in nuclear power production.

Learn more about nuclear power at:

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Which of the following groups of organs all remove metabolic wastes from the human body?

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That would depend on the following.

But in general the Extretory aka the Urinary system gets rid of the waste.
group of organs are systems so it is excretory and urinary
excretory organs  are lungs, kidney, liver, skin

With the exception of echinoderms, invertebrates are _____; chordates, echinoderms, and vertebrates are _____.

Answers

Answer:

All invertebrates except echinoderms are protostomes. Protostomes include the phylum: coelenterata, ctenophora, platyhelminths, nematyhelminths, annelida, arthropoda and mollusca.

Explanation:

Echinoderms and chordates have tube within tube type of body plan which has evolved along deuterostomic evolutionary line.  Other similarities between echinoderms and chordates (which includes vertebrates) are:

-They possess a true coelom called enterocoelom.

- They have mesodermal skeleton made of calcareous plates or ossicles.  
 protostomes and deuterostomes

Describe an example of the cognitive stage, the associative stage, and the autonomous stage during learning the task of operating your new video camera.

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I don't understand this but can u please help me with history

A fox sees a piece of carrion being thrown from a hawk's nest and rushes to snatch it. The nest is 14.0 m high, and the carrion is thrown with a horizontal velocity of 1.5 m/s. The fox is 7.0 m from the base of the tree. What is the magnitude of the fox's average velocity if it grabs the carrion in its mouth just as it touches the ground? (Assume no air resistance and that ay = g = 9.81 m/s2.)

Answers

vertical d = 1/2 gt±² 
14.0 = 0.5(9.81)t² 
t² = 14.0/(0.5)(9.81) 
t² = 2,85 
t = 1.69 sec 

horizontal distance traveled by carrion in t = 1.69 sec 
d = vt 
d = (1.5)(1.69) 
d = 2.53 m 

fox must travel horizontally = (7.0 - 2.5) = 4.5 m in t = 1.69 sec. 
fox speed (avg) = 4.5/1.69 = 2.7 m/s to catch carrion ANS

The most accepted theory regarding the make-up of living things is the _____. organismal theory cell theory chromosomal theory

Answers

Answer;

-Cell theory

The most accepted theory regarding the make-up of living things is the cell theory.

Explanation;

-Cell theory is a theory that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells.

-According to cell theory; All living beings are made up of cells. Cell is the most basic unit of life. All cells must come from pre-existing cells.

-Cells are autonomous, in that they can acquire and use nutrients to obtain energy and they can reproduce. Simple organisms like bacteria are unicellular and composed of a single cell.
The most accepted theory is the Cell theory.
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