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jonny [76]
4 years ago
6

Photosynthetic cyanobacteria caused an increase in atmospheric levels of

Biology
1 answer:
tresset_1 [31]4 years ago
3 0

Answer:

oxygen in the environment

Explanation:

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The material that a rubber ball is made of is different from the material that makes up something like a pool table ball because
Lerok [7]

Answer:

h7rhocrbix rcrcrxineox rx ex e crc

rxnrikcjricrc

Explanation:

deibzienizjei xebiebsie is i3 she su 3u d4

4 0
3 years ago
How does a Calorie on a food label relate to a calorie that is produced in cellular respiration?
MrRa [10]

Answer:

Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses oxygen to release energy from food. ... The Calorie used on food labels is equal to 1000 calories

Explanation:

I hope this helps:)

8 0
3 years ago
What are frankenfoods? Are Genetically Modefied foods safe?
barxatty [35]

Opponents of GMOs have been unceasing in their campaign to vilify genetically modified foods by describing them as “Frankenfoods,” thus implying they are not natural and are potentially harmful.

“The practice of introducing new DNA and chemicals to seeds or animals (Aqua Advantage has developed a GMO fish) is similar to how Mary Shelly’s Frankenstein created his monster–—through piecing together lots of different organisms,” wrote the Organic Authority on its website—a common allusion in the anti-GMO world. “We all know what happened when the monster turned on Frankenstein, and many critics of genetic engineering have likened the inevitable backlash of GMO technology to the destruction and murderous rampage of Frankenstein’s monster.”

Many anti-GMO articles that warn of the dangers GM crops are often accompanied by an image of a tomato fruit or vegetable with syringes sticking out of them. Very often it is a fruit or vegetable for which there is no current GM equivalent such as a tomato. This depiction is used to reinforce the notion that GM foods are created in laboratories and not by nature and therefore are dangerous to consume.

With the constant barrage of scare-based imagery, it is not surprising that there is widespread public suspicion that GMOs are dangerous to human health. But there is little controversy surrounding GMOs within the scientific community with 88 percent of the members of the American Association for the Advancement of Science believing GMOs are “generally safe.” The safety of GMOs were once again reinforced by the May 2016 report by the U.S. National Academy of Sciences, Engineering and Medicine, which concluded, there was “reasonable evidence that animals were not harmed by eating food derived from genetically engineered crops”, and epidemiological data indicated there was no increase in cancer or other health related problems associated with these crops entering our food supply.

David Zilberman, a professor of agriculture and resource economics at the University of California, Berkley, has noted that Frankenfood was “a terrible word, a stigmatization word, one that’s used to scare people… People are afraid of GMOs for little or no reason. GM is simply a tool. Because it allows us to modify plants with far greater precision and control then before, it will be very valuable.”

The reality is that the vast bulk of the foods we consume whether organic or conventionally grown have had their genetics altered in the field or in a laboratory via a process of selective breeding or advanced biotechnology techniques, and all such foods are safe to eat. The altering of genes in plants is even known to occur naturally as highlighted by the sweet potato.

6 0
3 years ago
You are looking at a slide of an unknown organ that has an empty lumen with stratified squamous epithelium contacting the lumen.
umka2103 [35]

Answer:

<h3>Oesophagus</h3>

Explanation:

  • The oesophagus is the region of the alimentary canal where the food passes without the absorption of nutrients. In oesophagus, we find peristaltic movement which is basically rhythmic contraction and relaxation of the oesophagus in order to facilitate the easy passage for the food to pass from mouth to stomach.
  • The oesophagus is a muscular tube which measures about 8 inches long.
  • Mucosal lining lines the oesophagus.
5 0
3 years ago
What is homologous series?
PIT_PIT [208]
It is a series of compounds especially organic compounds with the same general formula or functional group that differ by - CH₂ with similar properties.
6 0
4 years ago
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