Peristalsis is the movement of food through the trachea by smooth muscle contractions.

Suppose a sound wave with a frequency of 444 Hz combined with a sound wave with a frequency of 436 Hz. How many beats would you

Tatiana [17]

Answer:

Explanation:

The sound wave has a wavelength of 0.773m.

Explanation:

To solve this problem we have to use the wave equation that is given below:

3 0

2 years ago

Two organisms have analogous structures. A student concluded that these organisms must have a common ancestor is the student cor

arsen [322]

Answer:

The student is wrong, just because the analogous structures of any two organism may have the same structure or even have the some relation between there way of operation or functions.

Explanation:

Analogous Structures:

As the similarity between two or more different organisms structure or any organ does not means that they have same ancestors or have the common origin from which the evolve into two different species. Now analogous structures are very much similar in there structure physically, but two different organisms may use them for the same function, which is astonishing to see or observe in way different species.

For example:

As the structure of the flipper of a Dolphin has similarity with the phalanges of a human being and with the wings of the bat. As all of them functions for the basic need of movement or locomotion from one point to another. While, all the three species are very much different in there features and are not the same obviously.

4 0

3 years ago

Why are the prefixes “mono” “di”, and “poly and the base “saccharide” good to use when describing the three types of carbohydrat

jolli1 [7]

Answer:

“Mono” denotes one, “di” denotes two, and “poly” denotes a large number.

What is the significance of these words in defining the

three forms of sugars?

These terms are used because they depict how the

molecule appears.

The molecule's base unit is called a "saccharide."

Explanation:

-

7 0

3 years ago

A first-hand source such as an experiment is called a _____.

IrinaK [193]

A first-hand source such as an experiment is called a primary source.

A primary source is where you can share new information or report on what you have discovered. Some primary sources are research data, interviews, audio recordings, and autobiographies.

A secondary source is where you describe and discuss about the primary sources. They are used to collect and gather primary source information. Some secondary sources are textbooks, review articles, and scholarly books.

A tertiary source is a source about summaries. A tertiary source can be used to look up information or get an overview about what it is you are wanting to know. Some tertiary sources are dictionaries, handbooks, encyclopedias, Wikipedia, and guidebooks.

6 0

3 years ago

Geologists, more specifically mineralogists, identify minerals based on ________. A. Optical properties. B. Solid properties. C.

Shkiper50 [21]

The minerals are mostly characterized by the Physical properties (D) which includes the hardness, lustre, density etc. The mineralogists check the detailed view of minerals by using high powered microscope.

The minerals are chemical compounds which are formed as a result of physical processes or geological processes. They mostly occur in crystalline form. For Example: Cacite, Sulfur, Quartz etc $.$

━━━━━━━━━━━━━━━━━━━━

5 0

3 years ago