Blood is just red.
Blue blood in diagrams is just used to distinguish between deoxygenated and oxygenated blood but there’s no such thing as hving blue blood.
The occlusion of the y-port could cause laryngeal, or a trauma to the tracheal mucosa. Any foreign object that touches the air passages, especially with an occluded tracheotomy tube can damage or block the airways. It is important to do this procedure with care.
Answer is in the file below
tinyurl.com/wpazsebu
Answer:
The environment cannot influence that trait.
Explanation:
Heritability refers to the measure of the differences in the gene of a person and how the genes are influenced by the environmental factors and controls the trait.
The heritability is counted between 0 to 1 which is counted on the measure of how the gene is influenced by the environment.
In the given if the heritability is very high that means close to 1 therefore it means the trait is controlled only by the genetics of the person and least influenced by the environmental factors.
Thus, the selected option is correct.
Answer:
Part a:
Whales and sharks share a common ancestor for superficial characteristics
Part b:
The vestigial pelvic bone of whales and dolphins indicates that they descended from an ancestor that lived on land.
Explanation:
Part a:
Whales and sharks possess similar body shapes and fin positions not because of descent from a common ancestor but due to their shared aquatic habitat. Whales share more characteristics with humans than with sharks. This indicates close phylogenetic ties (ancestral similarities) between humans and whales whereas sharks and whales have evolved independently. If they shared a common ancestor, they would have similar anatomical characters as well.
Part b:
Vestigial Structure:
A vestigial structure is an anatomical characteristic that is believed to have served a specific function for an organism in the past but as the organism evolved, the structure lost its function.
Pelvic bones are required by animals to move their lower limbs to be able to walk on land. Whales possess vestigial pelvic bones because they have evolved from an ancestor that lived on land.
