Vestigial structures are often homologous to structures that are functioning normally in other species. Therefore, vestigial structures can be considered the evidence for evolution, the process by which beneficial heritable traits arise in populations over an extended period of time.

5 0

3 years ago

A roofer needs to get a stack of shingles onto a roof. Pulling the shingles up manually uses 1,549 n of force. The roofer decide

AURORKA [14]

Answer:

$3.47$

Explanation:

Mechanical advantage is given by the ratio of output force by input force.

$F_o$ = Output force = $1549\ \text{N}$

$F_i$ = Input force = $446\ \text{N}$

So,

$MA=\dfrac{F_o}{F_i}\\\Rightarrow MA=\dfrac{1549}{446}\\\Rightarrow MA=3.47$

The mechanical advantage of the pulley's is $3.47$ .

5 0

3 years ago

BIG POINTS How can a single cell become a larger organism 4 to 7 sentences long.

velikii [3]

Answer:

the respective means of growth within an organism varies from organism to organism. For instance, multicellular organisms grow via a process of cellular division known as mitosis, while others (being unicellular) grow or reproduce colonially-speaking via a process called binary fission.

Explanation:

Hope this helps!!

4 0

3 years ago