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
ExtremeBDS [4]
2 years ago
15

A complex culture in which large numbers of human beings share common elements

Biology
1 answer:
Kobotan [32]2 years ago
6 0

Answer:

a

Explanation:

You might be interested in
A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inacti
jeka94

Answer:

D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.

In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.

3 0
3 years ago
An environmental scientists is least likely to be involved with which of the following?
o-na [289]

Answer:

Probably determining the best way to generate clean energy in Maine :)

5 0
3 years ago
Which one is incorrect?
Dafna11 [192]
A. Cellular Respriration starts with glycolysis is the answer
3 0
3 years ago
Fill in the blank.
hjlf

Answer:

1. Earth's ozone layer is responsible for absorbing infrared and ultraviolet rays from the sun.

2. Changes in the composition of the atmosphere have caused gradual changes in earth's climate, causing changes in plant and animal life that contributed to mass extinctions.

3. Chemical chlorofluorocarbons (CFCs) have been banned and replaced with hydrochlorofluorocarbons (HCFCs).

4. Naturally occurring volcanic eruptions can produce large amounts of gases which contain sulfur. These gases accumulate in the atmosphere in the same way as man-made sulphuroxides.

Sorry, but after that I don't know.

Explanation:

4 0
3 years ago
Read 2 more answers
Wild red wolves were once common in the southeastern United States. As
GrogVix [38]

Answer:

One is wolf Hunting

Explanation:

i don't know the other one Sorry ;(

3 0
3 years ago
Other questions:
  • Why do humans, as one of many on this planet, have the greatest potential to impact all other species?
    15·1 answer
  • Why might it be important to use different models at different stages of an investigation.
    6·1 answer
  • Receptors that provide animals with information from the external environment are located in the _____.
    14·1 answer
  • Animals are removed from an area. what effect would this have on the plants?
    8·1 answer
  • Describe the three steps of the lock and key model of enzyme function.
    11·1 answer
  • Producers are autotrophic. That is, they are able to feed themselves by converting carbon dioxide from the air and light energy
    5·1 answer
  • In word is the genus and which is the species of this scientific
    12·1 answer
  • In a population fulfilling all the assumptions of the Hardy-Weinburg equilibrium, allelic frequencies:
    6·1 answer
  • A researcher stimulates, with a small electrical charge, a portion of a cat's limbic system. The cat suddenly jumps and acts as
    8·1 answer
  • Select the best answer that describes how lionfish are impacting biodiversity in Florida. O Lionfish are consuming large quantit
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!