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Alex17521 [72]
4 years ago
7

pls help me someone im so stressed out rn I just had 4 math tests. I do virtual and a lot of the teachers at my school do both b

c of the shortage this year, and my math teacher hasn't taught math in 20 years and told us we were on our own. I haven't had ONE meet with him this whole year :((((((((

Biology
1 answer:
prohojiy [21]4 years ago
3 0

Answer:

concrete slate clay oak

Explanation:

there you go buddy i understand the stress

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PLEASE HELP ME (NO LINKS)
mojhsa [17]

Answer:

ccccccc

Explanation:

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ccccc

cc

5 0
3 years ago
Which of the following is most affected by natural selection?
trasher [3.6K]

Answer:

Influenza (The Flu)

Explanation:

Influenza (the flu virus) is a real-life example of natural selection that is most evident during an annual time period when the influenza virus infection peaks. The repeated or cyclical nature of flu outbreaks is caused by the natural selection of the virus for traits that allow it to evade the immune system and replicate, a process that actually results in new distinct strains of influenza virus.

7 0
3 years ago
Professor Danielle conducts an experiment on chloroplasts by deactivating several enzymes used for light-independent reactions.
Dima020 [189]

Answer:

NO.

Explanation:

The process of reaction of CO2 with H20 in the presence of enzyme, chlorophyll and sunlight is called photosynthesis. It has two stages: It is referred to as light dependent stage when it occurs during the day and light independent stage when it occurs at night.

The primary enzyme likely to  be deactivated by the Professor is ribulose bisphosphate  Carboxylate Rubisco. This is the most important enzyme in plants that catalysis the fixation of Co2  with 5C- ribulose bisphosphate  Carboxylase (RuBP) to form3C -Glycerite -3-phospate.(GP).

The GP is reduced by NADP with ATP to form Triose Phosphate (TP). This is the point of glucose production in plants,

The majority of the TP is used for RuBP, hexose phosphates  for starch productions, fatty acid and glycerol for cell membrane.  Amino acids are also produced from TP. This is known s Calvin Cycle.

If the enzyme Rubisco is deactivated, the above process cannot occur, thus the basic macronutrients and enzymes  for the survival of plants for photosynthesis(light dependent stage)  can not occur.

8 0
3 years ago
2. Traditionally, protists were classified in kingdom Protista. How has the classification of protists changed? 3. Relate Cause
pantera1 [17]

Protists are the eukaryotes which are neither plants, animals nor fungi. But they are plant-like, fungi-like and animal-like organisms.  It is difficult to classify all the protists in one kingdom Protista because of their numerous diversified traits. There are a few parasites, predators and also producers among the protists. Some have a cell wall, while others have a cell membrane. Mode of locomotion can be flagella, cilia or the pseudopodia. The best example is the <em>Euglena</em> exhibiting both plant and animal like characteristics in having a chloroplast performing photosynthesis and exhibiting locomotion by flagella. These diversified traits made the scientists to reclassify the protists. The kingdoms which arose from protist ancestors include the kingdom animalia, plantae and mycota sharing common characteristic features with their ancestor. Scientists say that we should not look for the earliest ancestors of animals among modern-day protists because, the modern day protists have gone through a process of evolution which makes them different from their early ancestors. The gradual changes during the course of evolution has made them different from their ancestors with respect to their structure, adaptations and also the genetic composition.

7 0
3 years ago
Using a food pyramid put these animals in it. snake plants owl warbler caterpillar preying mannis.
Mumz [18]
Animals meat as well as owl
plant vegetables
caterpillar and praying mantis fibers
7 0
4 years ago
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