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djverab [1.8K]
3 years ago
6

A student is designing a controlled experiment to test whether the amount of water that a plant receives affects its growth. Whi

ch variable should the student change?
Biology
2 answers:
MA_775_DIABLO [31]3 years ago
5 0
The amount of water should be changed by the student
Alina [70]3 years ago
4 0

Answer: The amount of water .

Explanation: it's because if we don't change the amount water then we will have the same value as before.

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Which occupational hazards are associated with wool
zmey [24]

Answer:

-Respiratory diseases like asthma, bronchitis etc, are very common among these workers

-The workers suffer from various skin infections

-Other health problems include headache, fever, back pain, neck pain, ect.

Explanation:

hope this helps

5 0
2 years ago
All of the following techniques involve hybridization between single-stranded nucleic acid molecules except:
Savatey [412]

Answer:

RFLP analysis.

Explanation:

RFLP (Restriction fragment length polymorphism ) may be defined as a molecular technique used to determine the location of a particular gene in the DNA sequences. The individuals among the population can be easily identified by RFLP analysis.

The restriction enzyme is used for the digestion of DNA sample. The restriction fragments are then visualized by running the fragments on gel electrophoresis. The hybridization between single stranded nucleic acid is not involved in the RFLP.

Thus, the correct answer is option (1).

8 0
3 years ago
Choose one Florida landform and explain how water erosion helped it form.
alexgriva [62]
Florida keys

The Florida keys is a coral cay archipelago in southeast United States.The Florida keys is an island which is near the gulf. The Florida keys is an archipelago landform.

Sea caves

<span>A sea cave,also known as a littoral cave,is a type of cave formed primarly by the wave action of the sea.Sea caves are a coastal and an oceanic landform.A sea cave causes by erosion because the rocks break down then terode all the materials to create sea caves.</span>
8 0
3 years ago
In the breakdown of taxa above there is something missing. There is a category above "kingdom" in the system above, a taxon call
CaHeK987 [17]

Hi,

The three domains of Carl Woese classification system includes bacteria, eukaryote, Eubacteria, fungi, Plantar, Animalia, Archaebacteria etc.

Hope it helps you...

Answered by Benjemin

7 0
2 years ago
In Drosophila, genes a and b control body size and color, respectively. Large body (a+) is dominant over miniature (a), and gray
frutty [35]

Answer:

1

Female gametes:

ab= 0%

ab+=0%

a+b=0%

a+b+=0%

for the miniature phenotype to occur, it is necessary to contain two recessive characters and the female must have both for it to occur, if it is homozygous for b + it will have 2 alleles b +, understanding that the female is aab + b it will only occur gametes ab +

.

2. Phenotype

Miniature body + gray=25%

Large body +gray = 50%

Large body +ebony = 25%

Miniature body +ebony =0%

As the crossing cannot occur in males, the gametes it can produce are: ab + and a + b. Although the crossing can occur in women. The gametes produced are: ab +, a + b, ab and a + b +.

the crossing occurs only in the females generating the gametes ab +, a + b, ab and a + b +

The genotypes corresponding to:

Punnet graphic

large gray body: a + ab + b, a + ab + b +, a + a + b + b

big body and ebony: a + a + bb, a + abb

miniature and gray body: aab + b +, aab + b

6 0
3 years ago
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