1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kiruha [24]
3 years ago
14

What happens to E. coli when lactose is not present?

Biology
2 answers:
Pachacha [2.7K]3 years ago
8 0

D. The genes that produce the enzymes needed to break down lactose are not expressed.

Absolutely sure!

eimsori [14]3 years ago
4 0
When lactose is not present, what happens to E. coli is that the genes that produce the enzymes needed to break down lactose are not expressed. The correct answer is B.
You might be interested in
A standardized taxonomic system is valuable because it helps biologists agree on methods to
creativ13 [48]

Answer:

A. separate organisms

Explanation:

Sana makatulong

5 0
2 years ago
At a celebratory dinner for a recent publication, a marine biologist ordered the lobster claw appetizer. What part did she order
andrey2020 [161]

At a celebratory dinner for a recent publication, a marine biologist ordered the lobster claw appetizer. She ordered Cheliped.

<h3>What is Cheliped?</h3>

The chelipeds are the large claws that the crayfish uses for defense and to capture prey. Each of the four remaining segments contains a pair of walking legs. In the abdomen, the first five segments each have a pair of swimmerets, which create water currents and function in reproduction.

It is of the pair of legs that bears the large chelae in decapod crustaceans. It is a very delicious and nutricious food item. Some people are allergic but max people has no problem with this Cheliped .

From the above discussion we can conclude that at that celebratory dinner for a recent publication, that marine biologist ordered the Cheliped of lobster claw appetizer.

To know more about the  lobster claw please click here : brainly.com/question/10006169

#SPJ4

4 0
1 year ago
Why are the mutations generated in a species' gene pool important? A. The mutations reduce variation. B. The mutations prevent i
Schach [20]
<span>Mutations generated in a species gene pool important because mutations cause evolution.</span>
4 0
3 years ago
Why does the reduction of the dye DCPIP work best using the chloroplasts whose outer envelopes have been damaged during preparat
Stolb23 [73]

Answer:

NADP is the cofactors in photosynthesis which loses electrons,becomes reduced(NADPH) in photosynthesis. It transfer  electrons  in reduced form(NADPH) into the stroma of the chloroplast. The H is splits into e- and H+

These electrons for the ETC chains, generates the PMF for pumping H+ as protrons into the thylakoid  intramembranes.

Outer membrane covers  the intramembrane space, between these two membranes layers. The protons in the intramembrane space generate the electrochemical gradient for the supply of  the energy used by ATPase synthase for ATP synthesis from phosphorylation with ADP.

The chloroplast is made up of both the outer and inner membrane,separated by the intramembrane space. The walls of the intramembrane space is guided by the outer envelope. 

Therefore with the outer envelope removed, the intramembrane is exposed,more protons(H+) are released, but can not be held in the outer envelope to form electrochemical gradients,beacause the intramembrane space is now permable.

Thus   the rate of reduction of DCPIP is faster.The  color changes to colorless increases when reduced , from blue color.

Explanation:

7 0
3 years ago
You are going to mix a gallon bucket of window cleaner. The instructions direct you to mix 1 part cleaner to 3 parts water. How
Lerok [7]
Well,  . . 
Let's divide the gallon into 4 Quarts.

if 1 part cleaner need to be mixed every 3 parts of water, it's means  that you need about 1/4 gallon of cleaning solution

hope this helps
5 0
3 years ago
Other questions:
  • What time period is called the Age of Mammals?
    6·1 answer
  • At the time of Mendel’s pea plant experiments, no one knew how organisms formed gametes. As Mendel studied the inheritance of tw
    10·1 answer
  • During the inflammatory process the first thing that happens is
    8·1 answer
  • Based on the DNA which populations do you think live in closer proximity to each other. What do you expect to see when comparing
    13·2 answers
  • The ___ reaction of photosynthesis puts carbon dioxide into the form of carbohydrates. light or dark
    12·2 answers
  • you ride your bike to a friends house that is 5 km from yours. it takes half an hour to do this . what is your speed?
    12·2 answers
  • An aging gentleman suspects that his hearing is failing. He sees a specialist who performs this test to determine the precise na
    9·1 answer
  • DNA is sometimes called the blueprint of life. why do you think that is?
    6·1 answer
  • 2. _______ are deep valleys with cliffs or steep slopes along their sides. Canyons Volcanoes Ranges Alluvial fans
    13·2 answers
  • The physical appearance of long horns is an example of what scientists would call a phenotype
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!