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
WINSTONCH [101]
2 years ago
8

PMTA are the 4 stages of...

Biology
1 answer:
Archy [21]2 years ago
7 0

Answer:

premarket tobacco application (PMTA) is an application that must be reviewed and approved by the Food and Drug Administration before a new tobacco product can be legally marketed in the United States.

Explanation:

You might be interested in
Which of the following is a normal process of photosynthesis that could not occur if all reaction centers were inactivated by a
Arturiano [62]

Answer:

A. donation of excited electrons by chlorophyll a to a primary electron acceptor

Explanation:

Photosystems are structures located at the thylakoid membrane that act to harvest energy light in order to convert it into chemical energy. Each photosystem is composed of a light-harvesting complex and a core complex, which in turn is composed of a reaction center. The photosynthetic reaction centers are multi-protein complexes that use light energy to catalyze the electron transfer across the chloroplast thylakoid membrane against a thermodynamic gradient. Moreover, antenna pigments are pigments that capture the energy from photons in order to transfer energy to other pigments in the photosystem (e.g., chlorophyll B and carotenes are antenna pigments, whereas chlorophyll A is the core pigment). Light energy absorbed by antenna pigments in the photosystems is transferred to the reaction center chlorophyll A molecules, thereby exiting electrons in the reaction center. A reaction center consists of two chlorophyll A molecules, which donate electrons to the primary electron acceptor.

4 0
2 years ago
Antibodies, B-cells, killer T-cells, and helper T-cells are all examples of what part of
wlad13 [49]

Answer:

b    whit blood cells

Explanation:

6 0
2 years ago
Help asap <br> 6th grade science
Elan Coil [88]

Answer:

true.......

Explanation:

.........

4 0
3 years ago
Read 2 more answers
Systemic lupus erythematosus (SLE or lupus) is distinct from other autoimmune disorders because Systemic lupus erythematosus (SL
Alina [70]

Answer:

All these responses are correct

Explanation:

The systemic lupus erythematosus (SLE) is an autoimmune disorder that may be linked to both environmental and genetic factors. This disease is caused by the own immune system (i.e., antibodies) that is directed against the body's tissues in a healthy person.

7 0
3 years ago
If you were looking through a microscope, how would you be able to tell if you were looking at a eukaryotic cell? Explain and/or
miss Akunina [59]
Eukaryote cells have a nucleus of course , and also you’ll see that its larger and has a cell membrane .
8 0
3 years ago
Read 2 more answers
Other questions:
  • What were the observations that darwin made that led to his theory of evolution?
    14·1 answer
  • Al of it please !!!!!!
    13·2 answers
  • How does organic farming help control hazardous wastes?
    15·1 answer
  • A diagram of the digestive system is shown below.
    11·1 answer
  • A DNA strand with the sequence A-T-T-G-C-T would be complementary to which of the following? *
    12·1 answer
  • CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION THANK YOU:)
    14·1 answer
  • El alcohol en gel Es la única manera de enfrentar al virus de la pandemia, en cuestión de higiene?​
    9·1 answer
  • Time Span of the renewability of fuels is a major factor when considering what type of fuel to use in a project. Fossil fuels, i
    7·1 answer
  • What type of atoms will ionic bonds be found between
    10·1 answer
  • Which is the following is true about the properties of the mantle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!