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vodka [1.7K]
3 years ago
10

Why are protozoan not classified as bacteria?

Biology
1 answer:
SSSSS [86.1K]3 years ago
7 0
Protozoa are Eukaryotic organisms, they show animal/plant like behaviors. Bacteria are prokaryotic, very tiny simple single celled organisms with no nucleus or mitochondria.
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How might the increase of volcanic eruptions affect Earth?
vodka [1.7K]
If enough ejecta (mainly ash) is sent into the upper atmosphere, the dust particles will block solar energy causing a decrease in temperature. This has happened in the past. Look for the year without summer caused by a volcanic eruption.
5 0
2 years ago
When the birth rate is equal to each woman producing exactly enough offspring to replace herself and her offspring's father, and
Ostrovityanka [42]

Answer:

R = 0 and no population growth.

Explanation:

Birth rate may be defined as the growth of individual per thousand and death rate determines the death of individual per thousand in a year. The birth and death changes the population dynamics.

The growth rate depends on both the factors that are birth rate and death rate. Here, the birth rate is balanced or equal that replace the offspring father. The change in the population growth is same and the birth and replacement almost cancel out each other. In this case, the birth rate is zero and population do not grow.

Thus, the answer is  R = 0 and no population growth.

5 0
3 years ago
What do the results of the agar blocks indicate about the relationship between cell size and diffusion rate
Natasha_Volkova [10]

Answer:

Knowledge of the relationship between the size (volume) of cells and their surface area helps explain the process of diffusion. Agar blocks and cells with the largest surface area to volume ratio (the smaller cubes) have the highest diffusion rates.

Explanation:

6 0
3 years ago
Read 2 more answers
Please provide the answer for the problem below.
Lera25 [3.4K]

Answer:

cell wall) function:protects and holds the structure of the cell

X for plant cell

chloroplast) absorbs energy from sun through photosyn. to make nutrients

plant cell-x

cytoplasm) a gel like substance in which most of the cell's processes take place

x for plant&animal

ER) packages & transports proteins made by ribosome to the golgi apparatus

GA) transports proteins to their destined location throughout the cell

found in plant and animal cells

Mitch) converts energy in nutrients to usable energy

found in plant and animal cell

nucleus: stores and protects DNA

found in plant and animal cells

vacuole: stores food and water

found in plant and animal cells

HOPE THIS HELPS

Explanation:

8 0
3 years ago
To demonstrate the action of salivary amylase on starch
AveGali [126]

Answer:

No because he heated the solution, causing the starch and saliva to emulsify

Explanation:

4 0
2 years ago
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