True or false? The effectiveness of the gaseous exchange surface in animals is increased by it being ventilated.

Answer: True 

Explaination:

The process of breathing, or ventilation , brings air to, and removes air from the exchange surface – the alveoli. The moving blood and ventilated surfaces mean that a steep concentration gradient can be maintained. This increases effective exchange.

Answer:

Effective food supply was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II.

One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds, they occupy different niches.

Explanation: with a great tolerance to a wide range of conditions the species would adapt and thrive which would allow it to reproduce and have all it needs to survive, grow, and take over.

A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.

The image shows a cross-section of land scape.

B)Phosphorus has a larger atomic mass.

As we move right in the periodic table, both atomic number and atomic mass increases. Magnesium comes under S-block elements (Group 2) and Phosphorus comes under P-block elements (Group-15).

The T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation. is random is a mechanism for evolution is often related to disasters is also called “migration” deals with movement between populations...

Angelica suffers from lupus disease.people with this disease are extremely sensitive to sun light.

Astronomers are able to detect the dimmer star because its gravity causes the bright star to . Astronomers can also spot the dimmer star by observing a phenomenon called a(n) binary.

The nerves and muscles communicated with each other to trigger her reflexive response…