Answer: Transcription - A
Explanation:
This problem is talking about the lac operon and the gene expression of lac operon. If the gene is turned off, then transcription, the generation of mRNA won't occur.
Answer: 1. Sea urchins and sea otters
2. They are prey for carnivores.
3. Sea otters, star fish
Explanation:
Sea urchins and sea otters are carnivores as they eat on the flesh of starfish and sea urchins respectively.
Starfish feed on the kelp forests which are the producers in the food chain and the starfish is the primary consumer and prey for sea urchins. So, starfish and kelp forests are the prey in the marine ecosystem.
Keystone species is the one which controls the population of other inferior species in an ecosystem. Here, sea otters consume sea urchins so the population of sea urchins remained in control Starfish controls the population of kelp forest.
Answer:
<em>H</em><em>eredity, the sum of all biological processes by which particular characteristics are transmitted from parents to their offspring. ... Each offspring is a combination of its two parents, receiving some dominant traits from its mother and others from its father.</em>
Explanation:
<h3>I hope this helps!</h3>
According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
<span>The kidneys can have a direct influence on the urinary system, by pushing hydrogen ions and bicarbonate into and out of urine.Without the kidneys performing its duties within the body, waste materials can poison other internal organs causing infection and other complications to occur within the body.</span>
