Answer:
Treest are an Investment
They beautify our surroundings, purify our air, act as sound barriers, manufacture precious oxygen, and help us save energy through their cooling shade in summer and their wind reduction in winter.
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Answer:
Echinoderms evolved from animals with bilateral symmetry. Although adult echinoderms possess pentaradial, or five-sided, symmetry, echinoderm larvae are ciliated, free-swimming organisms that organize in bilateral symmetry which makes them look like embryonic chordates.
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Explanation:
Answer:
A. Pseudopods
Explanation:
Amoebae use pseudopodia to move
Answer:
Six hours
Explanation:
Given that;
A microbiologist inoculates a flask of broth with 1 ml of 100 bacterial cells/ml
Also, the generation time of the species is 1 hour and there is no lag phase
i.e there is no period where the individual bacteria are maturing, this will enhance a faster replication
So , since the generation time is 1 hour and we are being given 100 bacterial cells/ml
∴
After 1 hour = replication of the bacterial cells would have been doubled to =200 bacterial cells
2nd hour = 400 bacterial cells
3rd hour = 800 bacterial cells
4th hour = 1600 bacterial cells
5th hour = 3200 bacterial cells
6th hour = 6400 bacterial cells
∴ We can see that at the 6th hour, the culture has contained more than 6,000 cells/ml
