Birds and reptiles conduct internal fertilization and lay the eggs outside of the body.
<span>The
answer is ‘two sympatric species that eat
similar-sized seeds’. Sympatric <span>speciations occur
when a species population diverges without a physical barrier. Resources partitioning
could occur when individuals in a population compete for same resources. Some individuals
in that population may begin to utilize different resources to minimize the
competition (and avoid being competitively excluded from the population). Over time, this results in a divergence of the
populations that utilize different resources hence carving out different
niches. </span></span>
The superior vena cava is located in the upper chest region and is formed by the joining of the brachiocephalic veins. These veins drain blood from the upper body regions including the head, neck, and chest. It is bordered by heart structures such as the aorta and pulmonary artery.
The superior vena cava (and inferior vena cava) are veins that return deoxygenated blood from circulation in the body and empty it into the right atrium.
Answer:
C
Explanation:
The proton pump must continuously work against the concentration graident to maintain the electrochemical gradient. If this stops, the ions will flow down their concentration gradients, depolarizing the electrochemical gradient.
Answer:
string camera and tape
Explanation:
tape end of a string to a wall and film it while its moveing or just tape/glue string to paper
