Answer:
A. Plant cells have cell walls and chloroplasts, Animal cells do not.
Explanation:
Answer:
A.
Explanation:
Predators hunt prey. (Obviously). As such, they help control the population of that particular prey-species. If the predator species is removed from the equation, 2 times are changed. Long term & short term. Long term includes lower populations due to lack of resources. Short term includes overpopulation due to lack of threat.
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.
Answer:
prevents secretion of upper air passage
Explanation:
to prevent foods and drinks from falling down the airway which is called aspiration and may lead to pneumonia
So that it can protect exposed tissue, a layer of meristematic cells, cork cambium, or phellogen rises from the cortex.
