Answer:
pulmonary vein
Explanation:
The pulmonary veins
transfer oxygenated blood from the lungs to the heart.
It helps complete the pulmonary circuit, by receiving oxygenated blood in the alveoli and returning it to the left atrium.
The answer A. DNA in the nucleus controls all cell activity.
The two contrasts between seagulls and wild geese are migration and their sizes. One way they are similar is that they can both fly for great distances. The other way is that they are similar is that are both very large in size. The correct answer is A.
Answer:
Explanation:
a "y" shaped protein that helps destroy pathogens. Antibody is also know as immunoglobulin because it is used by the immune system
Answer:
Explanation:
quadrant to determine the population of plants. The quadrants is square in shape and its been marked with boundaries. It is place on a particular location to determine the number of plants.
Population of owl in 2000 =200 owl
Population of owl in 2004 =126 owl
Change in population = 200 -126=74 plants
There is a decrease by 74 in the number of plant.