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zavuch27 [327]
3 years ago
12

Which statement is not true about prokaryotic cells? They are always single-celled organisms, and they never contain mitochondri

a. They have a circular loop of DNA instead of multiple linear DNA molecules. They lack a nucleus, but they do have ribosomes. They may have flagella, but they never have cilia. They all have a rigid cell wall instead of a plasma membrane.
Biology
2 answers:
IRINA_888 [86]3 years ago
6 0

Answer:

They lack a nucleus, but they do have ribosomes.

Explanation:

Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.

zubka84 [21]3 years ago
6 0
They lack on nucleus
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Answer:

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Pesticides on foods are stored in body tissues in a process known as
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Give an example of a theory and 1 example of a scientific law.
Vaselesa [24]

Answer:

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7 0
3 years ago
You want to test the effect of sucralose on the growth of a plant. Design a study using the steps of the scientific method. What
Julli [10]

Answer:

  • The independent variable is the concentration of sucralose present in the plant.
  • The dependent variable is the growth rate of the plant.

Explanation:

The study designed through the steps of the scientific method would be done as follows:

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Question: Can sucralose influence plant growth as well as sucrose?

Hypothesis: Sucralose may establish some influence on plant growth.

Experimentation: Select a number of seeds inoculated with sucralose molecules and select the same number of seeds that were not inoculated with anything. Provide the same type of soil and environmental factors so that seeds can grow in the same way. Weekly evaluate the growth of the plants generated by each seed for a certain period of time. After this period of time, measure the weight of the plants and their roots. Place the plant and root to dry in an oven and measure the weight of the plant and root once again.

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Conclusion: Using the data presented in the evaluation of the experiment, state whether the hypothesis developed provides true or false information.

<u><em>Note: it is important that the seeds are from the same species of plant.</em></u>

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4 years ago
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Answer:

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