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
snow_lady [41]
3 years ago
8

What initiates the contraction of cardiac muscle?

Biology
1 answer:
weeeeeb [17]3 years ago
5 0
Intercalated disks support the synchronized contraction of cardiac muscles
You might be interested in
The Punnett square shown presents a cross between two piranhas. Both parents have large teeth.
Llana [10]

Answer:

The correct answer would be C)  75% large-toothed and 25% small-toothed.

It can be explained with the help of the law of dominance which states that the dominant allele expresses itself completely over the recessive allele in the heterozygous condition.

So, the genotype TT, as well as Tt, will result in the production of dominant trait or character in the offspring.

Thus, three (1 TT and 2 Tt) out of four offspring would have large teeth and only one offspring (tt) would have small teeth.

Hence, we can conclude that 75% of the offspring will have large teeth and only 25% will have small teeth.

8 0
3 years ago
Read 2 more answers
Which structures are considered part of the reproductive system?
Katarina [22]

Answer:

Ovaries, Uterus, Testes

Explanation:

Ovaries are what carry the Zygote's (eggs) and the Uterus is where a fertelized grows into a baby. If the egg is not fertilized in a certain amount of time the egg becomes infertile, the body goes through a 3-7 day cycle of menstruation. The Testes are the organs (balls) which carry sperm cells, which will fertilized a healthy egg.

3 0
3 years ago
What is the primary source of stem thickening in plants?
Ipatiy [6.2K]
The primary source of stem thickening in plants is the vascular cambium. It is a plant tissue located between the phloem and the xylem and in the root of a vascular plant. It is the source of secondary growth or the radial growth of the stem of a plant.
7 0
3 years ago
How are bacteria classified
valentinak56 [21]

bacteria are classified as microbes

8 0
3 years ago
The ___ separates the heart into two parts. HELPP
seraphim [82]

Answer:

The septum

Explanation:

The septum is a thick wall of muscle that divides the heart. It separates the left and right sides of the heart.

8 0
2 years ago
Other questions:
  • 9. Biodiversity is valuable partly because it (1 point)
    11·1 answer
  • Wireless internet is an example of telecommunications. Please select the best answer from the choices provided T F
    10·1 answer
  • How Many Enzymes Does A Cell Contain ? And Do They Perform The Same Function ?
    15·2 answers
  • You are going to mix a gallon bucket of window cleaner. The instructions direct you to mix 1 part cleaner to 3 parts water. How
    14·1 answer
  • In which situation is a chemical reaction occurring? A. ice melts B. a nail rusts C. a glass breaks
    15·1 answer
  • Can someone answer my question and be my friend What bird can fly backwards
    14·2 answers
  • Why do you think many world leaders have<br> imposed a ban on human cloning<br> experiments?
    14·1 answer
  • What is one byproduct of slash-and-burn clearing of the rain forest that is harming the atmosphere?
    13·2 answers
  • Which subatomic particle determines an element's atomic number?
    7·2 answers
  • 2 On a hot day, dogs sweat through their paw pads
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!