Which stage of animal development in this figure, A, B, C, D, portrays the stage when the blastula is formed?
1.A
2.B
3.C
4.D
4
You might also like to view...
When many genes of an organisms are globally regulated, those genes are considered as regulon genes. What is the common theme of such genetic regulation?
A) Genes of regulons are silenced by a common repressor. B) Genes of regulons are able to transcribe mRNA independent of regulation. C) Genes of regulons are much more stable than non-regulon genes. D) Genes of regulons are much less stable than non-regulon genes. E) Individual genes of regulons are regulated independently of each other.
Your city is considering a proposal to build a new algae-based biofuel plant. What benefits would this have over traditional fossil fuels? (Check all that apply.)
_____ The kelp fronds would provide habitat for endangered sea otters. _____ It contributes less carbon to the atmosphere overall. _____ It is a renewable resource. _____ Biofuel doesn’t need to be burned to provide energy. _____ The system could be paired with wastewater treatment. _____ The algae can be filtered from the water and used for fuel without refinement.
The greater the contrast between two adjoining habitat patches, the greater is the diversity of species living along the border between the two patches
Indicate whether the statement is true or false
What are fastidious organisms and how do you culture them?
What will be an ideal response?