Answer:
D. They float on convection currents in the mantle.
Explanation:
B
Anaerobic respiration produces ethanol in plants and some other organisms and lactic acid in animals
An opinion is a view or judgement formed about something that doesn't have to be based on fact or knowledge.<span> It is a completely subjective</span> statement (based on or influenced by personal feelings, tastes, or opinions). It reflects the speaker's personal views and thoughts.<span>
An observation is the process or action of observing something or someone carefull in order to gain information. </span>It is generally an objective comment (<span>not influenced by personal feelings or opinions in considering and representing facts)</span><span>; the person making it does not wish to express a personal opinion on the subject but merely makes an observation regarding it.
</span>
Multi cellular colonies of plant cells adhere to each other primarily by cell walls, whereas multi cellular colonies of animal cells are typically held together by proteins
<h3><u>
Explanation:</u></h3>
The organisms that contains more than single single are called as multi cellular organisms. They are just opposite to the uni cellular organisms. When many identical organisms groups to form together it is called as colonies.
It will be difficult in removing any organisms that forms colonies with the multi cellular organisms.The multi cellular organism of the cells in the plants are bonded to each other with the help of the cells walls. In animal cells these are bounded together with the help of the proteins.
I believe A is the most correct (i assume it's about antibiotics - they actually DO harm our immune system in some way).
B is partially correct because, the colds indeed should be treated by anti-viral medication (because the virus is a cause of typical cold) but using antibiotics during recovery is needed only when an additional bacterial infection occurs as a complication after the viral infection. and it doesn't happen very often.
C - what works? antibiotics doesn't work for viral infections (colds). anti-viral medication do.
D i won't discuss.
I am sorry for a so long answer. but your question is so linguistically twisted that i am not sure which of the following choices is actually correct because of a big amount of mistakes.
