Answer:
D, organisms that survive long enough to reproduce.
Explanation:
C and D are the best answers. Adaptations and skills other than speed and strength contribute to an organism's survival too, so that means it isn't C. Natural Selection is about how an organism must have useful traits to survive to reproductive stage and successfully reproduce, so it would definitely be D.
Please Mark Brainliest! I need nine to level up.
<span>Algae bloom or algal bloom is an obvious appearance or rapid
increase and accumulation of millions of algae and tiny plant-like organisms in
the water. The blooms of these microscopic algae or phytoplankton is the result
of abundant sunlight, nutrients, and the right water conditions. These blooms may take place in freshwater and
in marine environments as well. They come in different colors, cyanobacteria
blooms for instance are often blue-green which literally means that blue-green
algae comes to bloom</span>
.
Answer:
Please find the detailed explanation of this statement below
Explanation:
Firstly, a repressed gene is a gene whose expression has been inhibited or repressed. The lac operon in E.coli bacteria is a regulatory unit containing structural genes, a single promoter and operator regions. The promoter is the region where the transcription enzyme (RNA polymerase) binds to in order to transcribe the genes in the lac operon. The structural genes in the lac operon can only be expressed in the presence of lactose sugar.
However, in the absence of lactose, LAC REPRESSOR, which is a transcription factor (protein), prevents the binding of RNA polymerase to the PROMOTER region by binding to the OPERATOR region of the lac operon. This inhibits the expression of the lactose genes in the operon.
Note that, the structural genes in the lac operon (lacZ, lacY, lacA) code for proteins that help break down lactose sugar for energy in the E.coli bacteria. Therefore, a bacteria cell with a repressed lac operon will be unable to degrade lactose sugar.
Identifica la causa de tus sentimientos.
Acepta tus sentimientos y no luches contra ellos.
Cuéntale a alguien cómo te sientes.
Medita durante 15 minutos al día.
Deja de leer autoayuda ahora mismo.
Haz 30 minutos de ejercicio.
Conecta con gente a través de MeetUps.
Haz algo por los demás (aunque sea pequeño)
