The answer is B. Cnidarians
Cnidarian body has no left or right side, only tom and bottom surfaces. If you divide cnidarian a about central point, you will get equal parts. So, cnidarians are radially symmetrical animals. This group includes hydroids, jellyfish, anemones, and corals. In all groups, animals have stinging cells on tips of tentacles. They use them to capture the prey. Their name literally means stinging creatures.
The significince about them as they think they came from the moon as i do mot know much about it you may be better by searching it up
Due to the <u>mutation </u>accumulation, the <u>binary fission</u> in bacterial population will decrease due to in ability to divide (Due to inactive replicating enzymes). In the similar way, the <u>generation time</u> will also decrease.
Binary Fission- Binary fission, also known as asexual body division into two new bodies, When an organism divides into two halves (cytokinesis) by binary fission, it doubles its genetic material, or DNA, with each new creature acquiring one copy of the latter.
Generation Time- The amount of time it takes for a colony of bacteria to double in size is known as the generation time. The generation period for various bacteria ranges from a few minutes to many hours. Bacteria multiply by geometric progression because of binary fission.
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Answer and Explanation:
In crickets, femur length represents a highly important trait associated with jumping performance - an essential behavior for their survival and reproduction.
According to research, these are the possible advantages and disadvantages in regard to long femur length:
Advantages
- Longer legs [may] provide higher power for the muscles in order to jump.
- Long-legged crickets generate lower reaction forces while performing a jump, which enables them to lose less energy in comparison with crickets with shorter femur length.
Disadvantages
- Longer femurs may increase the total take-off time of a cricken prior to a jump.
- In some cases, longer femurs force insects to develop head or body structures to enable them to 'fit' the legs while they prepare to jump.
- Increased energy loss while jumping from an elevated leaf.
