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sdas [7]
3 years ago
10

In the heart, an action potential originates in the __________.

Biology
1 answer:
jeka57 [31]3 years ago
3 0

Answer:

sinoatrial (SA) node

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Energy cellular

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3 years ago
WILL GIVE BRAINLIEST
egoroff_w [7]
Here's the fact:

"Altering the DNA of plants always reduces the nutritional content" is a FALSE statement. In fact, GMO products often have nutrients added.

"<span>Genetic modification reduces the genetic variation in both plants and animals" is a TRUE statement. The natural genetic variation that keeps species thriving is decreased when the plants are modified. Less diversity within a species puts it at an increased risk of being affected by disease or even becoming extinct. Genetic diversity causes resilience, since not every strain of a species will die off in the case of contracting a disease because they are all different. The more similar species are, the more they are at risk. However, so long as companies make variations of GMO foods, we should be fine.

"There have not been enough long-term studies to prove that this food is safe" is a TRUE statement. Some modern studies say genetically modified foods bad, some say they're good, some say they're neutral; however, since GMOs have only been a thing since 1994, there are no long term studies. Without long term studies, there is no way to confirm the safety of GMO foods. 

"There have been many studies showing that these foods cause disease" is a FALSE statement. There have been many studies of GMO foods, but many haven't found any worthwhile data, except a few allergies.

Answer: There have not been enough long-term studies to prove that this food is safe.

Hope this helps!</span>
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3 years ago
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Harold makes a Venn diagram to help him compare and contrast mitosis and meiosis.
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3 years ago
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Plz solve fast
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Answer:

There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases.

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1. What is the best most obvious observation from this photo that this is a pond or lake
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