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
White raven [17]
3 years ago
11

What is the proper name for the electrical system in the heart?

Biology
1 answer:
borishaifa [10]3 years ago
7 0

Answer:

SA node

Explanation:

The SA node (called the pacemaker of the heart) sends out an electrical impulse. The upper heart chambers (atria) contract. The AV node sends an impulse into the ventricles. The lower heart chambers (ventricles) contract or pump.

You might be interested in
Iron rich deposits that formed about 2 billion years ago have red layers. Layers formed before then were not red. The red layers
Amanda [17]

Answer:

D. The biosphere change the lithosphere

Explanation:

The red formed due to oxygen which is produced by plants in the process of photosynthesis. This oxygen then reacted with iron atom and formed oxidized iron layers of sedimentary rock. So here plants are responsible for the formation of these layers and we considered plants as part of biosphere so we can say that biosphere is responsible for the change of lithosphere.

3 0
3 years ago
Can i get example of ecosystems that I can investigate during winter & how to do so?
Alika [10]

Answer:

there gonna freese and the animals are gonna be hibernating

Explanation:

6 0
3 years ago
You cross two red griffins with blue eyes and produce offspring that are: red with blue eyes, red with green eyes, white with bl
sergejj [24]

Answer:

The reason for the offspring to present these genotypes is that during the formation of the gametes, the alleles separate and are inherited independently, therefore they can generate several different phenotypic combinations.

Explanation:

In order for an offspring to present very different phenotypes, as shown in the question above, it is necessary that the two red griffins with blue eyes that were crossed are heterozygous. Thus it will be possible for the offspring to present a wide variety of phenotype, according to Mendel's second law.

Mendel's second law is called the Law of segregation. This law explains that the alleles (which determine the characteristics of individuals) are separated in the formation of gametes and inherited by the offspring of a cross independently, and can generate different combinations of phenotypes, when the parents of a cross are heterozygous.

8 0
3 years ago
You find that 21% of the population exhibits the recessive trait for eye color and the other 79%
GaryK [48]
It could be 99% or 100%
7 0
3 years ago
A woman with type AO blood is married to a type BO person. What proportion of their children will have: A blood? B blood? O bloo
Solnce55 [7]

ab blood it is science say

5 0
2 years ago
Other questions:
  • Molecules "pumped" in or out from low to high concentration:
    11·1 answer
  • How does the shape of a bacterium affect its ability to acquire nutrients and its mobility?
    9·2 answers
  • How latitude and longitude coordinates are used to locate positions on earth
    13·1 answer
  • When a____ air mass moves toward a warmer air mass, it causes a cold front. The ____ air rises, leaving ____ temperatures in the
    14·2 answers
  • An order is subdivided into several _____. divisions classes families species
    14·2 answers
  • Which statement is true for both photosynthesis and cellular respiration?<br> It occurs in consumers
    7·1 answer
  • Grows and regresses (it's shed) with each monthly cycle
    6·1 answer
  • Who eats plants ?and give example
    8·2 answers
  • How do engineers use stem to create roller coasters
    8·2 answers
  • Which body region should be avoided during myofascial release techniques? Lumbar spine Thoracic spine Knee Pelvis
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!