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
Klio2033 [76]
3 years ago
15

Why is a stimulus required for a muscle to contract?

Biology
1 answer:
Charra [1.4K]3 years ago
7 0
When an individual muscle fiber receives a threshold stimulus, it contracts as much as possible. ... a threshold stimulus is the minimum amount of energy needed to make a muscle fiber contract.
You might be interested in
All cell membranes are primarily composed of _____________.
dezoksy [38]
Cell membranes are made of phospholipids to keep the cell's water (cytoplasm) in and everything else out. so your answer would be D <span />
7 0
3 years ago
Read 2 more answers
The presence of which of the following characteristics differentiates prokaryotic and eukaryotic cells?
ipn [44]

Answer:

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.

Prokaryotic Cell

Unicellular

Lysosomes and Peroxisomes absent

Microtubules absent

Endoplasmic reticulum absent

eukaryotic Cell

Multicellular

Lysosomes and Peroxisomes present

Microtubules present

Endoplasmic reticulum present

8 0
3 years ago
Maintaining homeostasis keeps the internal environment in the body functioning properly. Many organ systems work together and ma
Varvara68 [4.7K]

Answer:

D

Explanation:

However, the organ systems also work together to help the body maintain homeostasis. For example, the cardiovascular, urinary, and lymphatic systems all help the body control water balance. The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure.

4 0
3 years ago
Which statement accurately compares archaebacteria and eubacteria?
Readme [11.4K]

Answer:

maybe

Explanation: both idk for sure sry i tried

3 0
3 years ago
Which of the following is true for a water molecule
MArishka [77]

Answer:

The oxygen atoms have electrons more often than hydrogen.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Substances that go IN to a chemical reaction is called what?
    8·1 answer
  • What kingdom did carolus linnaeus originally use for his classification system
    13·1 answer
  • Why do giraffes have long necks?
    5·2 answers
  • What does the independent variable mean
    11·2 answers
  • For separate ecosystems to be classified as the same type of biome they must
    14·1 answer
  • a car moves takes in fuel releases energy from fuel gets rid of waste through the exhaust pipe is a car living thing​
    9·1 answer
  • Which is the correct diagram of an atom , hint (i’m putting a picture)
    8·1 answer
  • What is a theory that explains how species developed and diversified on earth ?
    5·1 answer
  • What are organic compounds
    11·1 answer
  • The diagram below shows four labeled structures of an animal cell.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!