Question

What are BALEEN WHALES adapted for? Pg. 2 Aquatic Locomotion (swimming) Illuminate (investigate, illustrate {draw, diagram, print}, describe, and explain) what scientists have discovered regarding the adaptations for aquatic locomotion {swimming} present in a typical BALEEN WHALE (humpback whales and blue whales are both good examples). Include the torpedo shaped body, front limb {flipper for steering}, remnants of hind limbs {vestigial}, spine {flexibility, musculature, flexion-extension motion, tail flukes, etc.

Answer 1

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Baleen whales

A Baleen whale swims up and down Strokes of its powerful tail flukes. Muscles in the upper and lower regions of the caudal peduncle provide power The thick layer of blubber under the skin of a whale results in a streamlined, fusiform body, making a whale energy efficient for swimming. Fastest can reach probably approx speeds of 32 cph (20mph) other species travel at lower speeds. Gray whale migrate at about 10-11 kph (6-7mphy They feed in relatively shallow areas of continental shelf. Gray whales - 15-50m (50-1654) Humpback whales - 148m (48576) Fin whales - 355m(1165ft)

Baleen whales have slower heart rate while T dining when diving, blood is shunted S away from tissues tolerant of low oxygen levels toward the heart, lungs and brain.

Many baleen whales are identified by size and shape of the blow.

Right whales low bushy blow

Blue whales 9m (30 ft)

Gray whale Heart shaped

Mink whale No visible blow

Like all mammals, whales are warm blooded. A baleen whales core body temperature is about 36.6 - 37.2°C (98-99-78 I some arteries of the flippers, flukes and dorsal fin is surrounded by veins. This some heat from the blood travelling through arteries is a transferred to venous blood. rather than the environment. This phenomenon is called a counter current exchange"

Baleen whales have fused neck Vertebrae and unable to turn their head at all. Baleen whales have a blow holes. The hind legs are enclosed inside body . and are thought to be vestigial organs while swimming, baleen whales rely on their flippers for locomotion in a wing like manner similar to penguins.
Baleen whales with t A Baleen whale Swens up and down strokes of its powerful tail flukes. Muscles in the upper and lower regions of the caudal pedunce provide power The thick layee of blubbee under the skin of a whale results in a streamlined, fusiform body, making a whale energy efficien for swimming. Fastest can reach probably approx speeds of 32 [ph (20mpho other species travel at lower speeds Gray whate megrate at about 10-11 kph (6-7mphy They feed in relatively shallwo areas of - continental shelf. Gray whales - 15-50m (50-165 ft) Humpback whales- 148m (465 46) Fin whales - 355M C1165ft) Baleen whales have slower heart rate while diving when diving, blood is shanted 2 away from tissues tolerant of love on levels toward the heart, lungs and lot of lowo onegger CS Scannersraith, CamScanner

Many baleen whates are identified by size and shape of the bloo Right whales a low bushy blow Blue whales y qm (30ft) Gray whale > Heart shaped Mink cohale No visible blow like all mammals, whales are warm blooded. A baleen whales core body temperature is about 36:6. 37.2°C (98-gousa - y some arteries of the flippers, Hikes and dorsal fin is surrounded by veins. Thus some heat from the blood travelling thoonon arteries is transferred to venous blood. rather than the environment. This phenomeno is called a counter curent heat enchange" Two blowholes splanta dorsal fin S dorsal bai. Baleen ridge w canned with CamScaipectoral fins flukes

Baleen whales have fuced neck Vertebrae and unable to turn their head at all. Baleen whales have a blowholes. The hand legs are endosed inside body and are thought to be vestigial organs while swimming baleen whales rely on their flippers for locomotion in a wing like manner semilar to penguins CS Scanned with CamScanner