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3 years ago

Do bacteria cells have a nucleus?

Biology

2 answers:

scoundrel [369]3 years ago

8 0

No they don't, they are prokaryotes which means they have no nucleus or membranous structure in their cytoplasm.

Fudgin [204]3 years ago

5 0

Yes they do because a nucleus is the control center of all unicellular organisms and multicellular organisms.

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Jim's heart rate was monitored during periods of exercise and periods of rest. The graph shows the result of one 50-minute

DaniilM [7]

Answer:

The correct answer is "Jim’s heart rate decreased quickly after 30 minutes since he is in good shape".

Explanation:

I attached the missing graph and the missing options of this question are:

Jim’s heart rate was 60 beats per minute at the start of the test.

Jim’s maximum heart rate during the test was 140 beats per minute.

Jim’s heart rate increased steadily as he continued exercising.

Jim’s heart rate decreased quickly after 30 minutes since he is in good shape.

The correct answer is "Jim’s heart rate decreased quickly after 30 minutes since he is in good shape".

While the first two statements are correct, since they point out data from the graph, the only statement that makes an inference based on the information of the graph is the last one. An inference is a conclusion that was reached base on evidence. In this case, the inference is that Jim is in good shape, and the evidence that was used to reach this conclusion is that his heart rate decreased quickly after 30 minutes.

5 0

3 years ago

Read 2 more answers

1.Explain Cytotaxonomy and Chemotaxonomy and Numerical Taxonomy.

LuckyWell [14K]

Answer:

Cytotaxonomy refers to the classification of biological materials based upon similarities and differences of cellular structure and number of chromosomes present in the cell afterwards while .:::: chemotaxonomy refers to the classification of biological materials based upon similarities and differences of the ...
Chemotaxonomy is based on the similarities and differences in biochemistry such as a sequence of amino acids in proteins, whereas, cytotaxonomy is the classification based on cellular characteristics such as chromosomes number and behaviour.

3 0

1 year ago

Plz answer all 5

Nataliya [291]

Answer:

1. Evolution can be defined as the gradual development of an organism creating diversity.

2. A common misconception is that Homosapiens are descendants of Apes.

3. analogous structures are features of different species that are similar in function, but not necessarily in structure; such as bird wings and insect wings. homologous structures, however, is an organ or bone with similar underlying anatomical features found in different animals; such as the arms of primates.

4. vestigial structures are structures that have no apparent function and appear to be residual parts from a past ancestor, such as wings of flightless birds.

5. Embryology supports the theory that organisms have a common ancestor in accordance to the theory of evolution.

Explanation:

4 0

3 years ago

Distilled water is devoid of any solutes. It contains no additional gases, minerals, or contaminants. Would it be right to give

barxatty [35]

The correct answer is, no, the IV will be hypotonic causing the cells to explode or expand to the point of combustion.

8 0

2 years ago

At what latitude can the noontime sun be observed in the northern part of the sky

kvv77 [185]

60 hope this helps mark as brain lists

4 0

2 years ago