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Marianna [84]
3 years ago
15

Help will mark brainliest

Biology
1 answer:
laila [671]3 years ago
5 0

Answer:

your arteries that are connected to your lungs are also connected to your heart and then you need to be in the vena cava which are connected to your heart as well so you need the veins

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Describe the effects of the various antibiotic drugs you used. Were they all equally effective at controlling bacterial growth?
Kipish [7]

Answer:

Basically, most   antibiotic drugs  are not  effective in controlling bacterial growth. The potency of any antibiotic drugs is a measure of the magnitude of  diameter of the  bacterial growth . <u>This is because the diameter   is the measurement of the bacterial growth around the antibiotic drugs used to control it multiplication, and therefore a  measure  of how effective  it  can controls the population</u> Thus a small diameter around the antibiotic agent is a proof that it suppressed the growth effectively and can effectively be used to control  the bacteria, While  a large diameter is an indication of low effectiveness of the drug.

Based on this analogy, penicillin with wide usage for control  of bacteria growth  with  diameter of 3mm, is the most effective antibiotic drugs.However, Erythromycin which is also widely used control growth with diameter of 5mm  or 6mm depending on   type of bacterial.

Therefore, the least 3mm  diameter presented by penicillin is an indication that , antibiotic drugs  are not effective enough, and further research need to be done to control growth of bacteria and therefore its   pathogenic  effects.  

Explanation:

8 0
3 years ago
What is not a dissolved gas present in the ocean
liraira [26]

The correct answer is option B, hydrogen.

The majority of the atmospheric gases are found in the sea water solution. In supplementation to oxygen and nitrogen, the most profusely found gas in the atmosphere, that is, carbon dioxide is found in the ample concentrations in the ocean waters.  

However, hydrogen is not present, and if found it is found in minute concentration. Of the gases, nitrogen is the most abundant gas found in seawater, while oxygen is the second most abundant, and carbon dioxide is the most soluble gas, and one of the various constituents, which influences the pH balance of the ocean.  


5 0
3 years ago
Read 2 more answers
Someone knows this can help with this
Vikentia [17]

Explanation:

sensory so hard but I will try

4 0
3 years ago
Which evidence supports the big bang theory?
kogti [31]

Answer:

Umm im a Christian and dont believe in the big bang but i do like to help people but the best one is the Radiation is detected in every direction due to the discovery in the 1960s of cosmic microwave background radiation.

Explanation:

4 0
3 years ago
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_________ is the least developed of a newborn baby's senses.
antiseptic1488 [7]
Sight is the answer a newborn can barley see
5 0
3 years ago
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