Habitat-the natural home or environment of an animal plant or organism.
Biosphere-the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
I believe that try both provide somewhere for animals to reside.
Hopes this helps
Answer:
E. On in the presence of lactose and absence of glucose
Explanation:
Expression of lac operon synthesizes the enzymes required for catabolism of lactose sugar. When both glucose and lactose are available, glucose is preferred as a nutrient and the lac operon is not expressed.
Lac operon is expressed only when glucose is absent in the medium and lactose is present. If any of the two conditions deviate, the operon is not expressed.
In the absence of glucose and the presence of lactose, the repressor is rendered inactive to bind to the operator. RNA polymerase enzyme is free to bind to the promoter and continue the process of transcription.
The reduced levels of glucose increase the cAMP levels which in turn bind to the Catabolite activator protein (CAP). CAP is a positive regulator that binds to the promoter to facilitate the transcription of the operon by RNA polymerase.
Almost positive it’s Sperm Cells
The enzyme doesn't participate directly !! it helps in changing the substrate into product and remains unchanged itself !!
so the answer is Enzyme !!
Answer:
The given options are false regarding the question, the correct answer should be -
multicellular male gametophyte has a non-gamete cell that controls growth and development to the pollen tube and the male gamete.
The importance of these nongenetic cells of the male gametophyte is to control the development and growth of pollen tube that is an essential structure for pollination and fertilization.
