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
balu736 [363]
3 years ago
7

Tetanic muscle contractions don't occur in a normal cardiac muscle because

Biology
1 answer:
Natalija [7]3 years ago
8 0
It doesn't occur because the refractory period lasts until the muscle finally relaxes. I'm in college, bio major. Hope my answer helps!
You might be interested in
What organelle is Excretory please help ASAP only if you know the answer
GenaCL600 [577]

Answer:

Vacuole

Explanation:

Good for you, I just got done with the cell in science so congrats!

;)

5 0
3 years ago
Read 2 more answers
Draw a 3d DNA for me plz
den301095 [7]
I can't draw very well. but, essentially the shape of DNA is a double helix and A pairs with T and T pairs with A. C pairs with G and G pairs with C. No matter what in DNA. What one side has the other side has. The other will always have the match to it on the other side

A= adenine
T=thymine
C=Cytosine
G=guanine

6 0
3 years ago
The greenhouse and enhanced greenhouse effects refer to the return of approximately ______ percent and greater than ______ perce
Sunny_sXe [5.5K]

Answer:

The greenhouse and enhanced greenhouse effects refer to the return of approximately <u>80</u> percent and greater than <u>80</u> percent of the heat radiated by Earth.

Explanation:

During natural greenhouse effect :

. Solar radiation reaches the earth

. Re-radiation of heat occurs

. Less re-emitted heat

. More heath escapes into space

Hence the greenhouse effect refers to return of 80% of heat radiated by Earth.

While during Human Enhanced Greenhouse effect :

. Solar radiation reaches earth

. Re-radiation of heat occurs

. More re-emitted heat

. Less heat escapes into space

Hence the enhanced greenhouse effect refers to return of more than 80% of heat radiated by Earth .

5 0
3 years ago
Characteristics such as a widow's peak or attached earlobes are determined by the genetic code. Which components of DNA are refe
sattari [20]
It may possibly be genes, I hope this helps!
7 0
3 years ago
Read 2 more answers
I need help with this
Inessa [10]

G...eventually the larger fish would catch on that these smaller fish are a problem.

8 0
3 years ago
Other questions:
  • During the cardiac cycle, the bicuspid valve closes:
    8·1 answer
  • Describe Crick's Central Dogma. Explain why this is an inference.
    5·1 answer
  • PLEASE HELP 12. Skates and rays have skeletons made of _____. 13. The series of dramatic changes in body form in an amphibian's
    6·2 answers
  • _________ are the source of antibody-producing cells.
    11·1 answer
  • Looking at a karaotype of a human, explain how to identify if the chromosomes belong to a male or a female.
    10·1 answer
  • PLEASE HELP!! Gas cloud 1 is likely to form a star. Gas cloud 2 is not. Based on this information, match the given conditions wi
    10·1 answer
  • Which molecule (carbohydrate, lipid, protein) supplies more ATP one broken down?
    10·1 answer
  • Which would probably have the greatest effect on a protein's function—a change to the primary, secondary, or tertiary structure?
    5·1 answer
  • The sides of the DNA ladder consist of alternating______ and phosphates
    14·1 answer
  • A female has a brother who is color blind and a mother who is not.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!