Many paleontologists hypothesize that present-day whales evolved from ancient ancestors that had four legs and walked on land. Evidence for that
hypothesis would be a sequence of whale-like fossils
A. in which the oldest fossils had flipperlike appendages and the most recent fossil had four limbs.
B. in which the oldest fossil had four limbs and the most recent fossil had flipperlike appendages.
C. that indicate that the ancestors of present-day whales were wiped out during a mass extinction.
D. that indicate that whales evolved before animals with four legs.

Answer:

B

Explanation:

If the oldest fossils showed legs and the more recent ones had only flippers, it would show the change over time.

please help

9. why Energy released by aerobic and anaerobic respiration in animal are not same.​

No matter what phase water is in, the water molecules stay the same; they just move differently.”
Explain why this evidence matters:

Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.

Based on this passage, you can infer...

A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals

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Look at the diagram.
Which two structures are first to combine in translation?
20004
• 1 and 2
• 3 and 4
• 2 and 3
• 1 and 4

Due to sun damage, a skin cell acquired a mutation in DNA sequence in a gene essential for cell survival. This mutation, however, was not passed on to the offspring of the organism. Which explanation best accounts for this observation?

CO
Ecosystem productivity is principally limited by
a. sunlight and nutrient availability
b. water and nutrient availability
the availability of time and nutrients
d. none of the above
C.
Please select the best answer from the choices provided
A
B

The diversity of dogs today can be attributed to selective breeding,
O True
O False

The neurons that send signals from the brain to the body muscles are motor neurons
true or false ​

Study the image, and then choose the statement that best describes the image.