D - spine alignment and foot size.
Late australopiths had an S-shaped spine that allowed for balance when standing. Shorter and less flexible toes made pushing off the ground much easier.
In frogs, different mating seasons are a barrier to reproduction.
Answer:
Biotic and Abiotic factors
Explanation:
Biotic factors such as predators can limit the population size.
Abiotic factors such as drought,torrential rainfalls,climate change,dessication etc.
Answer: Sinusoid capillaries
hope this helps!
Answer:
Hope this helps
Explanation:
In an ocean ecosystem, many types of fish and turtles are herbivores that eat algae and seagrass. Sea urchins are powerful primary consumers in kelp forests.
