Some help with biology please!

Question

alphadxg · Answer

I would say that there are two advantages to anaerobic respiration, which are shown by the first two pathways in the png image: 

1.) Allows for ATP production when oxygen is not readily available. 
and 
2.) Produces ATP more quickly then aerobic respiration; this is good for athletes who need a short fast burst of energy from ATP.

anonymous · Answer

Okay i see what you're saying what about the second one?

alphadxg · Answer

The purpose of the indicator is to detect the presence of carbon dioxide. The plants will give off oxygen and take in carbon dioxide when they are carrying out photosynthesis. They will give off carbon dioxide and take in oxygen when they are carrying out cellular respiration. If the plants produce more carbon dioxide in cellular respiration than they are able to use, the indicator will change from blue to yellow. If the plants produce and consume the same amount of carbon dioxide, no new carbon dioxide will be produced and the indicator will not change color.

alphadxg · Answer

I did this in Biochemistry lab.

alphadxg · Answer

That should answer your question pretty smoothly, let me know if you need something else.

anonymous · Answer

Thanks i think i will at the end of this practice test.

anonymous · Answer

Alright this is the last question on this practice test. Why are the animals such as fish, amphibians, reptiles, birds and mammals grouped into a single phylum?

anonymous · Answer

@alphadxg

alphadxg · Answer

Well those animals are part of the kingdom Animalia, and are in the phylum Chordata. They all share the same common characteristics of chordates and thus are grouped in a single phylum. 

These characteristics include: 
- Post anal tail 
- Dorsal hollow nerve cord 
- Pharyngeal Slits 

The above characteristics are all present (at least once during the lifetime of all the organisms in the phylum Chordata)

Also, in taxonomy, 'phylum' refers to whether or not the animal has a backbone (chordatae); animals with notochords and other back-bone similarities all fit here. so, animals are split here depending on their backbone types

your teacher depending on grade level will mostly look at notochords and back-bone similarities.

anonymous · Answer

I see thanks for the help man <3.

alphadxg · Answer

Yup :-)