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
andriy [413]
2 years ago
13

Up, are then matched with their partner ar

Biology
1 answer:
quester [9]2 years ago
7 0
While stopping to get gas in The Valley of Ashes, Nick notices the eyes of whom staring down at them? (hint: there are 2 pairs of eyes watching)
You might be interested in
Which of the following is an internal stimulus?
pashok25 [27]

Answer:

the correct answer would be D or if not then B

Explanation:

For instance, light stimulation, heat stimulation, chemical stimulation, sound stimulation, etc. -The stimulus that comes from within an organism is the internal stimulus. Humor stimuli and neural stimuli etc (release of hormones such as thyroxine).

4 0
3 years ago
Read 2 more answers
In the lab, you isolate a chlorella mutant that is unable to switch xanthophyll pigments into the inactive, non-heat-dissipating
balandron [24]

Answer:

Option B, no, because the xanthophylls prevent the production of reactive oxygen species.

Explanation:

Complete question

In the lab, you isolate a chlorella mutant that is unable to switch xanthophyll pigments into the inactive, non-heat-dissipating form. if you released that mutant into a small pond shaded by trees, would the mutation spread, and why?

a) yes, because the xanthophylls prevent the production of reactive oxygen species.

b) no, because the xanthophylls prevent the production of reactive oxygen species.

c) no, because xanthophyll dissipates absorbed light as heat, and in low light environments, such dissipation would decrease photosynthesis and therefore growth.

d) yes, because the heat released by the xanthophylls would warm up the cells and enhance photosynthesis.

e) no, because mutations never spread in nature

Solution

Xanthophylls are oxygenated carotenoids which are very essential for photosynthesis of plant. They play a major role in harvesting light and in photoprotection. The structure of xanthophyll consists of conjugated double bonds and they are good at facing  reactive oxygen species (such as cholera vector) thereby damaging their DNA, restricting the cellular pathways by damaging the oxidation pathway. Hence, in presence of reactive oxygen species the light received by xanthophylls is not used to in photosynthesis but in quenching the reactive oxygen species .

Hence, option B is correct

 

6 0
3 years ago
What do ants eat?. Plz help :3
svetlana [45]
Sugar.....................
5 0
3 years ago
Read 2 more answers
Organism x has an enzyme optimum temperature of 37°C. Organism y has an enzyme optimum temperature of 41°C.
Tema [17]
The answer is D since organism x has a n optimal temperature of 37 degrees Celsius and when organisms y enzyme gets incorporated with enzyme x it will increase enzyme’s x temperature therefore enzyme x will denature meaning it will unfold and it will loose its properties hence loosing its activity because its temperature has been altered.
3 0
3 years ago
At the end of meiosis II, how does the DNA in each of the four new cells compare to the DNA from the original cell? A) half as m
Roman55 [17]

Answer:

A

Explanation:

Meiosis results in gametes with one half the number of chromosomes of the parent cell.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Where is the frog liver and what is the purpose of this structure?
    6·1 answer
  • Of these nonmetals, which one is likely to be the least reactive?
    11·1 answer
  • What surprised Mendel about his F1 generation plants?
    13·1 answer
  • Rosalind Franklin
    9·1 answer
  • Reddening, the effect of interstellar absorption on spectral lines is
    7·1 answer
  • This is a process by which substances are transported across cell membranes by means of protein carrier molecules.
    12·2 answers
  • C.s. is a 49-year-old male who goes to the health care provider because he is experiencing heartburn more frequently and it is k
    7·1 answer
  • What are the vertical bars on a climate diagram? What do they show?
    12·1 answer
  • PLEASE HELP MEEEE. A rigid layer that lies outside the cell's membrane is... *
    5·1 answer
  • HELP PLEASE If carrots were removed from the food web, how might the other populations be affected?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!