Answer:
the chemicals needed to produce molecules comes from the food which an organism eat.
Explanation:
hope this helps
Answer:
<em>The velocity can change by changing the direction</em>
Explanation:
If the direction changes, then the velocity changes even though the speed is constant. Hope this helps!
The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. ... The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
Answer:
Troposphere
Explanation:
The troposphere is the lowest layer of the atmosphere.
Answer:
Homologous structures provide evidence for common ancestry analogous structures show that similar selective pressures can produce similar adaptations beneficial features Similarities and differences among biological molecules in the DNA sequence of genes can be used to determine species relatedness
