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RideAnS [48]
3 years ago
7

Describes the type of muscle action that causes the heat to beat?

Biology
1 answer:
e-lub [12.9K]3 years ago
8 0

The atria and ventricles work together, alternately contracting and relaxing to pump blood through your heart. ... The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles. The SA node sets the rate and rhythm of your heartbeat.

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The____of cattle and other ruminants includes a pouchlike structure called a(n)____, where bacteria help break down the animals
Alex_Xolod [135]

Answer:

The stomach of a cattle and other ruminants include a pouch like structure called a recticulum, where bacteria help breakdown the animals food.

Explanation:

Cattle is a ruminants and ruminants animals are animals that can chew the cord and have four chambered stomachs. Their stomachs are rumen, recticulum, abomasum and omasum. The abomasum is considered the true stomach because it has a structure similar to that of non ruminants. Recticulum is the second chambered stomach that is pouch like and it contains bacteria they help breakdown food. It collect the small digests molecule and move them to omasum.

3 0
3 years ago
Which Earth sphere does the following image most clearly represent?
NARA [144]
If the image contains life forms and living things, then it is the biosphere.
If the image contains frozen water bodies, such as the arctic tundra, it is the cryosphere.
If the image contains soil and other solid abiotic components of the Earth, then it is the geosphere.
If the image contains water in the liquid form, then it is the hydrosphere.
5 0
3 years ago
Why are AT pairs are easier to pull apart than GC pairs during the unwinding process
Mice21 [21]
Initiator proteins break hydrogen bonds separating short length of DNA, AT base pairs are held together by fewer hydrogen bonds than GC pair. Thus AT pairs are easier to pull apart, At rich regions are typically found in the replication origins. Replication origins are site at which DNA is first opened.
5 0
3 years ago
According to Darwin’s theory of evolution, how are the finches that live on the Galapagos Islands similar to members of a family
Elis [28]

Answer: All of the finches share common ancestors

Explanation:

4 0
2 years ago
Read 2 more answers
Which two (2) statements are correct examples of the “structure determines function” relationship among specialized cells in an
Nady [450]

Answer:

A and E are the correct.

Explanation:

Examples of the structures that determine function:

a) <u>Chloroplasts </u>only found in plant cells. They work to fix the CO2 in the presence of <u>light energy</u> (sunlight) and convert the reactants into <u>sugar molecules (carbohydrates</u>) that can be used by cells for metabolic functioning.

e) <u>Sperm</u> is the male reproductive cell. Motile sperm cells have a tail-like structure that typically <u>move via flagella</u> and requires a water medium in order to swim toward the egg <u>for fertilization</u>.

Other options are not correct because <u>they don't explain their function according to their structure</u>.

6 0
3 years ago
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