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Alina [70]
3 years ago
12

Plz hurry i need this answer

Biology
1 answer:
lilavasa [31]3 years ago
5 0

Answer:

<em>The correct option is A) cadmium dosage</em>

Explanation:

In an experiment, an independent variable can be described as a factor which is changed naturally or by us to see its effect on the dependent variable. The dependent variable is the variable which is under study and depends on the independent variable.

In the following experiment, we are checking the effect of different dosages of cadmium on the surviving ability of tadpoles. Hence, cadmium dosage is the independent variable. Tadpole population is the dependent variable.

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A student puts drops of Lugol's iodine solution into the water in the beaker shown. The water turned red. After a short time, th
pantera1 [17]

Answer:

Cell membrane as  a semi permeable membrane.

Explanation

A semi permeable membrane is the one that would only allow water,ions  and certain molecules to pass through it  by diffusion while restricting other  large molecules from passing through.

Details in the attachment.

Download docx
8 0
3 years ago
This is created when a cell surrounds material and takes it in:
soldi70 [24.7K]

Answer:

Endocytosis

Explanation:

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3 years ago
Which statement describes the formation of a protein molecule?
Dovator [93]
First, we can eliminate 2 options. The simple unit of protein is amino acid, instead, the simple unit of fat and lipids are fatty acids and glycerol, therfore we can eliminate option A and D because fatty acids does not exist in protein.
Now we are left with B and C. To solve that, we need to understand that protein is made of a chain of amino acids, a lot of amino acids are chemically combined and cannot be broken down unless the use of enzymes. Amino acid are actually the monomers that forms protein.
Therefore, the answer is C. amino acid combine to form a protein chain.
3 0
3 years ago
The branches of the bronchial tree lead to different lobes in the lungs.
Alika [10]

Answer:

True

Explanation:

It is divided into three lobes and each lobe is supplied by one of the secondary bronchi. The left lung is longer and narrower than the right lung.

8 0
3 years ago
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Discribe the types and importance of biological tools and identify their function​
lara31 [8.8K]

Answer:

The answer is below

Explanation:

There are different types of biological tools, with each of them having different functions. However, for the sake of the question, some of the popular tools will be listed here.

1. Stockroom tools: this includes:

Beaker: this is essential to take or storing small substances

Bunsen Burner: this is important in the biological lab to heat a substance

Flask: this is essential in holding liquid substance.

Pipette: it forms of a lab spoon that is used in mixing substances to form a compound or mixture

2. Computer and Imaging system: this is important in image analysis and sequence-analysis programs

3. Cell cultures: this is used in the biological lab to enhance the complex cell differentiation required in the experimentation of animal cell structure

4. Microscopes: this is essential in determining and examining the microscopic organism that we can not see with our makes eyes

8 0
3 years ago
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