Answer:
true
Explanation:
lactase is the enzyme that leads to the hydrolisis of lactose, when lactose is present the e coli needs to hydrolyse it to simple sugars so it needs to active the gene for lactase synthesis
Answer:
D
Explanation:
Science was needed to make technology and technology helps make scientific advancements. Ex- looking at a blood cell through a microscope to find s cure for a virus.
Ex- someone had to build a telescope using science to see the stars.
Scientists most often produce new genetic variations of organisms by causing mutations with radiation or chemicals and then selectively breeding in order to emphasize the desired traits in the new variations. The Dachshund is an example of this. By breeding two dogs with a similar mutation that caused student legs and elongated backs breeders were able to create a new variation not found in nature.
The correct answer is letter C, in most primates, the inability to move the ear has been replaced by the ability to stand upright on two legs. This is because movement was much of a need to these primates than hunting for food. They needed to be agile to locate specific places where sources of food are abundant.
The teacher most likely asked for additional trials because it was necessary to see data from more plants before the conclusion could be accepted.
Explanation:
- Any experiment should have multiple trials given so that accuracy of the result could be obtained.
- Repeating same experiments tests the consistency of a particular result and makes sure that the results will not be effected by random events occurring within the system or surrounding.
- Thus the conclusion becomes more precise and accurate.
