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SVETLANKA909090 [29]
3 years ago
15

A student comes to school and eats breakfast before going to class. Eating breakfast gives the student sufficient energy to hand

le her classes. What two body systems work together to provide the student’s cells with energy? 
 
A. 
Excretory and endocrine
B. 
Digestive and circulatory
C. 
Digestive and excretory
D. 
Excretory and circulatory 

Biology
1 answer:
lbvjy [14]3 years ago
4 0
B: digestive and circulatory
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nikdorinn [45]

Answer:

B

Explanation:

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Answer:

A. Yersinia Pestis

Explanation:

Yersinia Pestis is a bacterium which is anaerobic and can infect humans.

The Bubonic plague is caused by a bacterium (Yersinia Pestis). After coming into contact with the bacterium, symptoms begin to present themselves within one to seven days. These symptoms are typically flu-like (fevers, headaches and vomiting). In addition, swelling might occur at the lymph nodes closest to the area where the bacteria entered the skin.

The Pneumonic plague is also caused by the Yersinia Pestis bacterium and presents itself as a severe lung infection. Similar to the Bubonic plague, the symptoms can take between one and seven days to start showing (fevers, headaches, coughing, shortness of breath).

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4 years ago
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WARRIOR [948]
<span>Biomass is carbon based and is composed of a mixture of organic molecules containing hydrogen, usually including atoms of oxygen, often nitrogen and also small quantities of other atoms, including alkali, alkaline earth and heavy metals.  These metals are often found in functional molecules such as the porphyrins which include chlorophyll which contains magnesium.</span>
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4 years ago
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Ostrovityanka [42]

Answer:

the last bullet

Explanation:

you have to buy a lot of floodplain land to produce enough crops and the land cant be used when it flood causing the owner to lose money

4 0
3 years ago
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