Why are viruses not considered to be alive? What will be an ideal response?
The first reason is that viruses are not cells, and cell theory states that all living things are cells. The
second reason is that viruses are unable to replicate on their own and depend on host cells to facilitate
the process.
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Red light and phytochrome are involved in which of the following plant growth responses? Check all that apply.
_____ thigmotropic responses _____ inhibition of seed germination _____ elongation of etiolated shoots _____ detection of crowding by neighboring plants
What kind of oocyte is released from the ovary at ovulation?
A. primary B. germinal C. secondary D. ovum
When treating an organism with a mutagen, although it is possible that homozygous mutations will occur, it is more likely that most new mutations will be heterozygous or hemizygous
Indicate whether the statement is true or false
If two animals are living together and the death of one results in the death of the other, the two animals were
A. competitors. B. vectors. C. mutualistic. D. predators.