Explanation:
To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down. ... Whales do the same thing as they swim, showing their ancient terrestrial heritage.
Cetaceans are fully aquatic marine mammals belonging to the order Artiodactyla, and branched off from other artiodactyls around 50 mya (million years ago). Cetaceans are thought to have evolved during the Eocene or earlier, sharing a closest common ancestor with hippopotamuses.
Answer:
True
Explanation:
Ice pellets are rain drops that have frozen <em><u>before</u></em> they hit the ground.
(They freeze while they're still in the air)
Answer:
A. acquired traits can be passed to offspring.
Explanation:
Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
Answer:
D?
Explanation:
Labs are often measured directly for accurate results.
Hey there Lorin!
Long period comets come something called the OORT CLOUD.
Short period comets come from the kuiper belt.
-Steel jelly
