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
mash [69]
3 years ago
12

PLZZZZZZZZZZZZZZZZ HELPPPPP

Biology
1 answer:
wlad13 [49]3 years ago
3 0

Answer:

1. A

2. A

3. i dont know

4. D

5. E

6. B

7. D

8. B

9. i think skin? i dont know

10. B

11. C

12. i dont know

13. A - i think

14. A

15. B

16.i dont know

17. A

18.D

19. D or C

20. C

You might be interested in
Conventional fossil fuels are harmful to the environment. Alternative solutions include using nuclear energy or solar energy. A
Ivan
B solar power plants can be easily set up over small tracts of land
8 0
3 years ago
In the last stage of cellular respiration, oxidative phosphorylation, all of the reduced electron carriers produced in the previ
zhenek [66]

The correct answer is:  

Net Input: NADH, ADP, O₂

Net Output: NAD⁺, ATP, and H2O

Not Input or Output: Pyruvate, Glucose, Acetyl CoA, Coenzyme A and CO₂.

NADH together with FADH2 are reduced electron carriers that transfer their electrons and turn back into NAD+ and FAD.

Electrons are transferred to O2 and H2O is produced.  

ADP can be described as precursor for ATP synthesis, since it receives phosphate group for the formation of ATP. This process is possible thanks to H ions gradient and enzyme ATP synthase.

3 0
3 years ago
Соотнеси процессы протекающие при охлаждении с обозначенными участками​
tamaranim1 [39]

Answer:

what i don't understand

8 0
3 years ago
QUESTION 1
nata0808 [166]

Answer:

According to the sliding-filament model of contraction, the muscle contraction occur due to the myosin heads propel the actin myofilaments toward the center of the sarcomere. This pulls the Z disks closer together, shortening  sarcomere and the entire muscle

Explanation:

In the muscle fiber there are two proteins that facilitate the process of contraction, myosin and actin. Myosin is thicker and more abundant than actin, and its interaction is responsible for the process of muscle contraction.

Both molecules, myosin and actin, form bonds -called cross bridges- where the myosin heads produce the mobilization of actin towards the center of the sarcomere. Z discs are associated with actin myofibrils, so they come close, and promote the shortening of the sarcomere.

This process requires the action of calcium ions, which depolarize the muscle cell and consume energy in the form of ATP.

It should be noted that the myosin and actin molecules do not change their length, but their action causes the muscle fibers to shorten during contraction.

Learn more:

Types of muscle contraction brainly.com/question/7117064

7 0
4 years ago
The palisade layer _____.
mariarad [96]
The answer is C, the primary location for photosynthesis.

The palisade cells contains a lot of chloroplast, which contains a pigment called chlorophyll, which can trap light and turn them into energy source for the plant. This process is called photosynthesis. It is how the plant mainly make food and keep them growing.

Palisade cells are the main location for photosynthesis as they have the most chloroplast number usually in a plant. They can absorb sunlight efficiently thus photosynthesis is efficient.

So, the answer is C.
3 0
3 years ago
Other questions:
  • Which process(es) of the water cycle— precipitation, evaporation, condensation, runoff, percolation or transpiration— that might
    8·1 answer
  • when the gravitational pulls of the sun and moon partially cancel each other out,Earth experiences a _____tide.
    15·2 answers
  • How many primary tissue types are found in the human body?
    5·1 answer
  • A purebred wingless red-eyed fruit fly is crossed with a purebred winged sepia- eyed fruit fly to produce F1 flies.
    14·2 answers
  • Chlorine has seven electrons in its valence shell. It accepts an electron to complete its octet and become a chlorine ion. What
    5·1 answer
  • Describe how the plant absorbs ingredients and gets rid of its waste
    12·2 answers
  • Tall trees create shade over smaller trees, causing the smaller trees to experience changes in sunlight.
    13·2 answers
  • 1. Osmosis and diffusion are same phenomena.​
    15·2 answers
  • What are the range biodiversity ecosystem services
    12·1 answer
  • The way that organisms are
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!