Answer:
Vertebrae
Explanation:
both birds and reptiles have a backbone or a <em>vertabrae. </em>therefore they are Vertebrates.
Hope this helped!
Capillaries are one cell thick and so this makes them very thin. capillaries are also arranged in networks known as capillary beds, and thus multiple capillaries are spread over a large area.
Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. ... It results in gametes that have unique combinations of chromosomes. In sexual reproduction, two gametes unite to produce an offspring.
Explanation:
A. xx
b.x+x+
c.x0x0
d.x+x0
e. x0y
