answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Black_prince [1.1K]
2 years ago
15

A man drinks swamp water and later contracts malaria. This fact alone does not provide conclusive evidence that swamp water is r

esponsible for causing malaria. To draw a valid conclusion, a _________ experiment with only one __________ factor is needed.
(first blank choices: controlled, scientific or dual)
(second blank choices: constant, variable or common)
Biology
1 answer:
Nataly_w [17]2 years ago
5 0

Answer:

1. controlled

2.variable

You might be interested in
A cylinder with a mass of 12 g has a radius measuring 2 cm and a height of 6 cm. What is its density? 0.05 g/cm3 0.16 g/cm3 1 g/
valina [46]
Given:
m = 12 g, the mass of the cylinder
r = 2 cm, the radius of the cylinder
h = 6 cm, the height of the cylinder.

Calculate the volume, V, of the cylinder.
V = πr²h
   =  π*(2 cm)²*(6 cm)
   = 75.398 cm³

By definition,
density = mass/volume.

Therefore,
density = m/V
             = (12 g)/(75.398 cm³)
             = 0.159 g/cm³
             = 0.16 g/cm³ (nearest hundredth)

Answer: 0.16 g/cm³

3 0
2 years ago
Read 2 more answers
some protist from long,foot-like projections of their cell membrane and cytoplasm that are used for movement and to capture food
agasfer [191]
The name of the structures that some protists form to move are flagella, which are like long moving hairs.
3 0
2 years ago
A factor that promotes maximum production of atp in cellular metabolism is the presence of
Andrews [41]
The answer to this question would be: oxygen

The presence of oxygen allows the cell to do the aerobic reaction. Using in metabolism will result in a much higher number of ATP produced. 
When there is no oxygen, the cells make energy using the anaerobic reaction that gives a low number of ATP.
7 0
1 year ago
Two birds that look very similar to each other have always been considered two distinct species based on differences in their bo
exis [7]
The evaluation of their DNA and short tandem repeats will let them know if the birds are related or not. The genetic linkage will provide information about their common ancestry as well as if they belong to the same species, or are closely related species. 
7 0
2 years ago
Read 2 more answers
One sign that does not tend to indicate hiv has moved on to aids is ______. a pcp infection
melamori03 [73]
<span>Pneumocystic pneumonia. This is a fungal infection that is very common in people with HIV. Before medication was available, about 3/4 of people with HIV came down with this infection.</span>
7 0
2 years ago
Other questions:
  • Woolly mammoths were grass-eating mammals that resembled elephants but with heavy coats, large tusks, and small ears that made t
    15·1 answer
  • Vacuoles are LARGEST in ___________ cells.
    12·1 answer
  • Sandra wants to modify the diagram to include chlorophyll. Which would be the most useful strategy? A. Add representations of ch
    12·2 answers
  • Pea plant clones are giving different amounts of water for three-week period. The first pea plant receives 400 milliliters a day
    15·1 answer
  • The Arizona poppy is a plant that is native to the Southwestern United States. Its orange flower blooms in the summer and the pl
    7·1 answer
  • Which of the following statements concerning metagenomic sequencing is incorrect
    14·1 answer
  • The general function of an enzyme in the body is to ________. The general function of an enzyme in the body is to ________. elim
    5·1 answer
  • An amoeba is a single-celled organism that feeds on algae, plant cells, and bacteria. When an amoeba feeds, it first makes conta
    12·2 answers
  • Under the right circumstances, the lysogenic cycle changes to the lytic cycle. Explain whether the lytic cycle can change to the
    11·1 answer
  • You isolate an organism from a water sample and test it with a catalase test and grow it in thioglycollate medium. The results s
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!