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
Romashka [77]
3 years ago
7

SERIOUSLY I NEED HELP I AM TAKING A QUIZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Biology
2 answers:
Setler [38]3 years ago
8 0

c is the correct answer

dem82 [27]3 years ago
3 0

Answer:

cardiac

Explanation:

An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). This is a small mass of specialized tissue located in the right upper chamber (atria) of the heart. The sinus node generates an electrical stimulus regularly, 60 to 100 times per minute under normal conditions.

You might be interested in
This is some barrier to reproduction among a species of organisms. It often results in genetic change over time and the developm
Nataly [62]

reproductive isolation

5 0
3 years ago
Read 2 more answers
A terrarium is a small closed container in which a selection of living plants and sometimes small land animals, such as turtles
Dmitry_Shevchenko [17]

Answer:

ecosystem

Explanation:

4 0
3 years ago
Do only cars produce Carbon dioxide? True or False? (Explain why?)
balu736 [363]
Cars do not produce carbon dioxide gas emissions. Lighting in store parking lots uses more energy than lighting inside the store.
3 0
3 years ago
Which of the following statements correctly describes how Mendel accounted for the observation that traits had disappeared in th
Genrish500 [490]

Answer:

A) Traits can be dominant or recessive, and the recessive traits were "hidden" by the dominant ones in the F1.

Explanation:

Mendel discovered the fundamental theory of heredity: that inheritance involves the passing of genes (he called it discrete units of inheritance), from parents to offspring. Those genes are with two alleles in the genotype, one inherited from the father and other inherited from the mother.

When he cross-bred pure-bred parent (always produced offspring identical to the parent) plants dominant traits were always seen in the offspring, while recessive traits were hidden until the first-generation (F1) hybrid plants were left to self-pollinate. Mendel also noticed that in second-generation (F2) of the offspring 3:1 was ratio of dominant to recessive traits.

3 0
3 years ago
Name two of the tangible and/or intangible ways in which state governments improve society.
Mrrafil [7]
Two of the tangible and/or intangible ways in which state governments improve society regulation of currency and promotion of freedom and equality. I hope this is the answer that you are looking for and it comes to your help.
3 0
3 years ago
Other questions:
  • True or false: plants do not need cellular respiration because they carry out photosynthesis
    11·1 answer
  • During which phase of the cell cycle would the cell double all of its contents?
    11·1 answer
  • Prokaryotic cells are distinguishable from eukaryotic cells because prokaryotes do not contain:
    5·2 answers
  • Does anyone know this one ??
    9·2 answers
  • A 12 N force is used to pull a wagon 10 m to the left in 15 seconds. Which of the following represents the magnitude of the forc
    12·2 answers
  • Which of the following shapes is most similar to Earth’s orbit?
    11·1 answer
  • Which feature of the Sun is shown below? A. sunspot B. solar flare C. prominence D. magnetosphere
    14·2 answers
  • Environmental factors determine whether or not all genetic traits lead to health issues true or false?
    14·2 answers
  • ¿ Cuales acciones de limpieza deben realizarse en casa, para mantener un ambiente sano en su interior y entre quienes la habitan
    11·1 answer
  • why did the researchers add filtrate which macerated moss had been removed to control microcosms?(worth 5marks)​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!