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love history [14]
4 years ago
8

You must design a valid experiment to show that there are microorganisms in the air.  What would be your dependent variable?

Biology
2 answers:
JulsSmile [24]4 years ago
3 0
<span>growth of organisms in the broth i hope this helps

</span>
bulgar [2K]4 years ago
3 0
You can carry out a test , 
1- take a sample of the air in a test tube 
2-add limewater to the test tube 
3- result : if it turns milky/cloudy it has microorganisms 
4- reason: because every microorganism respires , and so it produces Carbon dioxide . 
and limewater is the test to show the presence of Carbon dioxide . 
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3 years ago
What are researchers doing to great whites in hopes of being able to learn more about their behavior patterns?
solong [7]

Answer:

tagging the sharks

Explanation:

To learn their behavioral patterns researchers are tagging the sharks. Doing so allows the researchers to track their movements individually and gather data as to how they move, where they migrate to, how many migrate together, etc. All this information is extremely valuable and when pieced together can shed light on why they have certain behavioral patterns or traits.

8 0
3 years ago
PLEASE HELPP!! match the word with the definition
alexira [117]

Answer:

A. Miosis

B. DNA molecule

C. Body cells

D. phenotype

E. Recessive traits

F. genotype

G. Punnet square

H. nondisjunction

I. mitosis

J. sex cells

Explanation:

In meiosis cell division, a parent cell divides into four daughter cells whereas in mitosis, one cell divides into two daughter cells. If change occur in DNA molecules, mutation occurs. Phenotype refers to physical characteristics of an organism whereas genotype indicates genetic characteristics. Recessive traits only appears when the organisms have same traits or allele. Somatic cells is known as body cells whereas gametes is known as sex cells.

6 0
3 years ago
In looking at the location of Homeotic (Hox) genes Antp and Scr, it turns out that they are located next to each other. Why is i
yuradex [85]

Answer:

Because these Hox genes are controlled by the same enhancer and they are part of the same developmental program

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The Hox genes are evolutionarily conserved transcription factors found in animals. These factors are critical transcriptional regulators and they are known to regulate developmental programs

4 0
3 years ago
Which one of these is NOT an example of inter-cellular communication?
insens350 [35]
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Hope this helps.
8 0
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