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skad [1K]
3 years ago
13

Cyanobacteria are a type of _____ that _______.

Biology
1 answer:
Yakvenalex [24]3 years ago
3 0
B) bacteria, are producers

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List the advantages and disadvantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersi
expeople1 [14]
Persistent chlorinated hydrocarbon pesticides persist in the environment and accumulate in the foods chain causing harmful effects on the environment including posing a threat to humans health in the long term. Nonpersistent organophosphate pesticides are more toxic than the former but degrade after a short life span. Therefore they cause immediate harm in case one is in contact with them.
The fact that they do not accumulate in the environment, they are more favourable than chlorinated hydrocarbon pesticides. Chlorinated hydrocarbon pesticides will affect several generations due to their accumulation in the environment. However they don't need to be re-applied hence are less expensive
3 0
4 years ago
READING TOOL Make Connections Fill in the concept map to show the
Neko [114]

Answer:

Chloroplast -----membranes----------internal

                                             ---------external

                  ----- Tylacoids-------------Grana

                  ----- Stroma

You will find the complete concept map in the attached files  

Explanation:

Chloroplasts are composed of three membrane systems. Surrounding the organelle we can find the external membrane. To the interior of the organelle, there is the internal membrane. These two systems are separated by the intermembrane space. According to the endosymbiotic theory, the presence of a double membrane is the characteristic that reinforces the idea of a prokaryote being phagocyted by a eukaryote. The internal membrane looks identical to the membrane of bacterias, while the external membrane looks like the eukaryotic one.

Thylakoids are located in the interior of the organelle. These structures are also surrounded by a membrane, and in their interior, there is the thylakoid space. Each thylakoid looks like a hollow sac, and together with other thylakoids, they form piles, known as grana. Different piles or grana connect to each other by longer membranes. These internal structures together compose the third system of membranes. The photosynthetic pigments are located in the thylakoids, where it occurs the light-dependent reactions.

Surrounding the thylakoids there is a dense liquid called the stroma. Here takes a place the Calvin cycle.  

3 0
3 years ago
EASY BRAINLIEST PLEASE HELP!!
WITCHER [35]

Answer:

b

Explanation:

The legend of King Arthur is well-known in literature. Based on Unsolved Mysteries of History, there is little to suggest it is true. Do you think it is important for people to believe in legends like King Arthur even if there is little evidence to support them? Why or why not? Write a short (3 paragraphs) explanatory essay stating your opinion. Justify your opinion and conclusions with relevant textual evidence (quotes or paraphrased ideas from sources) and background knowledge. Remember to use relevant vocabulary from the text in your essay.

3 0
3 years ago
What is the relationship between proteins and nucleic acids that proteins help assemble nucleic acids.
julia-pushkina [17]

Answer:

protein is a monomer of nucleic acid that help in building the Gene's in the dna

6 0
3 years ago
The pH of coffee is _____ times greater than the pH of pure water.
Anika [276]

Answer:

a) 2

Explanation:

the pH of coffee is 5 and the pH of water is 7, 7-5=2

8 0
4 years ago
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