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Dafna1 [17]
3 years ago
11

Which of the following is not a way in which sponges reproduce?

Biology
1 answer:
ASHA 777 [7]3 years ago
7 0
The answer is A. By gemmules
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Time Remaining 22 minutes 56 seconds00:22:56 Item 9 Time Remaining 22 minutes 56 seconds00:22:56 Production of a neurotoxin that
Radda [10]

Answer:

The correct answer is: Clostridium Tetani.

Explanation:

Clostridium tetani is a Gram-positive bacteria found in soil.

<u>C. tetani may grow and generate </u><u>tetanospasmin</u><u>, a powerful toxin that interferes with </u><u>motor neurons</u><u>, producing </u><u>tetanus</u><u>, if introduced into a </u><u>wound</u>.

Tetanospasmin travels throughout the body via the lymphatic and bloodstream, where it is taken up by different sections of the nervous system. Tetanospasmin inhibits the release of the inhibitory neurotransmitters glycine and gamma-aminobutyric acid at motor nerve terminals in the nervous system. <u>This blockage causes </u><u>extensive motor neuron activation and muscular spasming</u>. These muscle spasms usually start at the top of the body and work their way down, starting about 8 days after infection with lockjaw and progressing to spasms of the stomach muscles and extremities. The muscle spasms last several weeks.

Tetanus toxoid vaccinations, which are often given to children around the world, can inhibit the toxin's activity.

8 0
3 years ago
Which contains mostly hydrocarbons?<br><br> carbohydrates<br> proteins<br> salt<br> gasoline
omeli [17]

Answer:

gasoline

Explanation:

hope that is help you haha

4 0
3 years ago
Read 2 more answers
What are the six most common elements found in living organisms
andrew11 [14]
1)Carbon
2)Hydrogen
3)Nitrogen
4)Oxygen
5)Phosphorus
6)Sulfur
7 0
3 years ago
Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?
9966 [12]
<h3>Answer:  C. a balance and a beaker</h3>

Explanation:

A balance would be used to measure the weight, which in turn effectively measures the mass (more or less). Imagine that we have a brick that we know is 1 pound. If we have an object that needs 5 bricks on one side to balance it out, then we know the object is 5 pounds.

The beaker is used to measure the volume. It's basically a measuring cup that you would find in the kitchen.

To get the density, you divide the mass over volume.

For example, if you have a material that has a mass of 100 grams and it's volume is 20 cm^3, then its density is 100/20 = 5 grams per cm^3.

7 0
2 years ago
Which is the word equation for photosynthesis?
GaryK [48]
Carbon dioxide + water glucose + oxygen

8 0
3 years ago
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