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Advocard [28]
3 years ago
9

A small mass of tissue that is made up of Purkinje fibers, ganglion cells, and nerve fibers, that is embedded in the musculature

of the right atrium, and that originates the impulses stimulating the heartbeat called as?
Biology
1 answer:
Nadusha1986 [10]3 years ago
5 0

Answer:

It is called the S-A node, or rather sinus node.

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Which statement is true? *
AlladinOne [14]

Answer:

B.

Explanation:

potential energy changes into kinetic energy

8 0
3 years ago
What is the complementary base sequence of the DNA strands of the template strand reads TTGCACG
Nadya [2.5K]

So there are four types of nucleotides in DNA:

  1. Adenine
  2. Cytosine
  3. Guanine
  4. Thymine

And the complements are:

  1. Adenine ⇄ Thymine
  2. Cytosine ⇄ Guanine

<u>Using this information, the complementary base of TTGCACG is AACGTGC.</u>

3 0
4 years ago
Read 2 more answers
Stem cells are undifferentiated cells that have the ability to continue to grow and divide in their non-specialized state for lo
strojnjashka [21]

Answer:

The correct answer will be option-D

Explanation:

Stem cells are the cells which have the ability to form different types of cells. They differentiate and specializes to perform different functions in the body and thus forms the different cells.  

The differentiation and specialization are controlled at the gene level by different patterns of gene expression. The pattern of gene expression is not fully understood during development but research have shown that the gene expression is influenced by the different environmental signals and internal regulators.

Thus, option-D is the correct answer.

4 0
3 years ago
Question 1:
SpyIntel [72]

Hello. You forgot to enter the necessary data for this question to be answered. The data are shown in the figure attached below:

Answer:

Red-capped Robin is the group of Robins that share a more recent common ancestor with the Norfolk Island robins.

Explanation:

Red-capped Robin is the group of Robins that share a more recent common ancestor with the Norfolk Island robins, this can be seen by the degree of genetic similarity between these two species, since the Red-capped Robin has 98.2% of genetic similarity .

When two species have the same common ancestor, these species have great genetic similarity and the more recent this ancestry is, the greater the genetic similarity between the species.

3 0
3 years ago
Which of the following abiotic factors affects the ocean by creating disturbances that move energy through the water? Nutrients
vova2212 [387]

Answer:

\huge \boxed{\mathrm{Waves}}

Explanation:

Waves affect the ocean by creating disturbances that move energy through the water.

As the wind blows on the surface of the ocean, waves are created that transmit energy through the water from a starting point to an end point.

7 0
3 years ago
Read 2 more answers
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