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
Anna007 [38]
3 years ago
8

Pow! a firecracker explodes close to you. your mouth drops open in surprise, a movement known as:

Biology
1 answer:
prohojiy [21]3 years ago
4 0
When the mouth opens wide and your chin drops, the movement is known as depression movement, which occurs in the <span>temporomandibular joint. This movement occurs naturally when we are surprised or shocked due to a certain event, it is also considered to be a common facial expression.</span>
You might be interested in
What are plankton and where do they reside?
oee [108]

Answer:

They are organisms (individual organisms called "plankters") that live in large bodies of water.

Explanation:

They reside in large bodies of water (oceans, lakes, etc). They are usually abundant in surface waters because all ecosystems of plankton live off input of solar energy.

5 0
3 years ago
Ouabain is a specific inhibitor of the active transport of sodium ions out of the cell and is therefore a valuable tool in studi
Kay [80]

Answer:

1. Part A: No

2. Part B: Yes

3: Part C : Yes

4: Part D : No

Explanation:

1) Part A: Facilitated diffusion of glucose into a muscle cell:

No; sodium ion co - transport is required for active transport of glucose but not for facilitated diffusion of glucose

2) Part B: Active transport of dietary phenylalanine across the intestinal mucosa:

Yes; co - transport of sodium ions drives the inward movement of amino acids and can only occur if sodium ions are actively pumped back out again.

3) Part C: Uptake of potassium ions by red blood cells:

Yes; uptake of potassium ions can occur only via a pump that couples the inward pumping of potassium ions to the outward pumping of sodium ions.

4) Part D: Active uptake of lactose by the bacteria in your intestine

No; active uptake of sugars and amino acids in bacteria is driven by a proton gradient.

3 0
3 years ago
As more information was gathered about the structure of the atom, atomic models changed over time. Maxwell Planck discovered tha
kenny6666 [7]
<span>Neils Bohr </span>developed a model of the atom (Bohr model) to explain how the structure of the atom changes when it undergoes energy changes. His major idea was that energy of the atom was quantized (this means that the atom could only have very specific amounts of energy) and the amount of energy in the atom was related to the electrons possession in the atom. In the Bohr model, electrons travel in orbits around the nucleus. The further the electron from the nucleus the more energy it has. Bohr used Planck's quantum concept of E=hv.
3 0
3 years ago
Earth Science anything helps
avanturin [10]

Answer:

The forest, maybe the atmosphereExplanation:

if you need more help

ask me

3 0
2 years ago
Which of the following techniques separates molecules based on size?
WITCHER [35]
Is size exclusion chromatography one of the choices?
4 0
3 years ago
Other questions:
  • When an amoeba eats, it does so by the process of endocytosis. which type of transport is this?
    11·1 answer
  • How do you put allele in a sentence
    13·1 answer
  • Avoiding sun exposure can reduce the number of flare-ups in a person with
    15·2 answers
  • Which is the best step to follow in the immediate aftermath of an occupational exposure incident to the eyes, nose, or mouth inv
    8·1 answer
  • 1. Marine scientists get information about aquatic populations from which of the following sources?
    15·1 answer
  • A gene that is normally transcriptionally active can be "silenced" if it is relocated (through experimental manipulation) to cer
    14·1 answer
  • The presence of a transit sequence directs a protein from the ________ to the ________. The presence of a transit sequence direc
    8·1 answer
  • Someone answer 8 pls
    6·2 answers
  • Which of the following scientists made major contributions to cell theory?
    12·1 answer
  • The two strands of dna are held together in a double helix by ______ bonds.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!