Answer:
<h2>a. 1000 X 2^8</h2>
Explanation:
As given;
Initial population of bacteria= 1000;
Log phase growth is exponential phase, period in which bacteria gets double.
Generation time= 15 minutes;
it means, bacteria get double in every 15 minute,
so after 2 hours, bacteria will have 8 generation times;
so the final generation of bacteria is =1000 X 2^8.
Final bacterial generation after two hours = 256,000(1000 X 2^8)
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
Answer:
Photosynthetic lamellae
Explanation:
The cyanobacteria were the first successful photosynthetic cells present on the Earth which were able to convert the light energy into the chemical energy.
The endosymbiosis theory suggested that these cyanobacteria were engulfed by the eukaryotes and the cyanobacteria get transformed into the chloroplast.
The region of the chloroplast that was formed in the cyanobacteria before the endosymbiosis happened was the photosynthetic lamellae which contained the chlorophyll molecule and thus is the correct answer.
Thus, Photosynthetic lamellae are the correct answer.
The use of chemicals on crops poses known health risks to humans. this statement most support a decision to buy organic produce.
- The agriculture industry has become more industrialized, which has increased the chemical load on the environment.
- Agrochemicals known as pesticides are applied to agricultural fields, public health initiatives, and urban green spaces to protect people and plants from numerous diseases.
- Their side effects, however, can be a significant environmental health risk factor due to their proven capacity to have a wide range of detrimental health and environmental impacts.
- Produce that is organic uses fewer pesticides.
- Because organic food lacks preservatives that extend its shelf life, it is frequently fresher.
- Organic farming typically benefits the environment.
- Animals kept organically are not fed animal byproducts, growth hormones, or antibiotics.
learn more about organic produce here: brainly.com/question/14318031
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