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jenyasd209 [6]
3 years ago
7

Where does the process of chemical digestion begins?

Biology
2 answers:
fenix001 [56]3 years ago
4 0
It begins in the mouth. You produce saliva when you chew. This helps break down the food so it can get down to your stomach.
poizon [28]3 years ago
4 0

Answer:D. Mouth

Explanation:

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What di eukaryotes most likely evolve from?
otez555 [7]

Answer:

Prokaryotes.

Explanation:

Most of the Eukaryotes most likely to evolve from the Prokaryotes.  Prokaryotes are basically unicellular organisms that lack internal membrane-bound structures. So, they do not carry nucleus and generally have a single chromosome. Most of them have a cell wall outside  the plasma membrane, which is a thin layer of lipid that completely surrounds the cell.  Prokaryotes reproduce by binary fission method.

8 0
3 years ago
1. which pair of bacteria can be differentiated by oxidase test?
fredd [130]

Answer:

1. A. Pseudomonas and E. coli

2. B. Red without black center

3. B. Salmon/orange

Explanation:

Pseudomonas is referred to as an oxidase positive bacteria while E. Coli is an oxidase negative bacteria. The use of the oxidase test will be helpful in the differentiation of the two Bacteria according to their oxidase activity/properties.

Colonies of Red without black center color is what is expected on HE agar if shigellosis is suspected.

Colonies of Salmon/Orange color is what is expected on HE agar if Enterococcus sp. is suspected.

6 0
3 years ago
List the four main components of air in their molecular form.
ruslelena [56]

Answer:

Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.

Explanation:

7 0
3 years ago
The members of these kingdoms all have cell walls. Which kingdoms are they?
bogdanovich [222]

Answer:

kingdom plantae

Explanation:

members of this kingdom have a cell wall that gives their cells a box like structure

5 0
3 years ago
Read 2 more answers
HELP PLEASE !!!!!!!!
Virty [35]

Answer:

The answer to your question is below

Explanation:

Balance the following equation

                          1  N₂    +   3 F₂     ⇒   2 NF₃

                                   2  -   N    -   2

                                   6  -   F    -   6

5 0
2 years ago
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