What species first appeared to walk upright. erectus, habilis, neanderthals, australopithecines User: what is the first species to be on earth?

What do similarities in the early development of organisms suggest

In which way are the sympathetic and parasympathetic divisions of the autonomic system similar? (A) Both utilize two neurons per message. (B) In both, the preganglionic neuron is shorter than the postganglionic neuron.

Which events are likely to be catastrophic to an ecosystem? select the three correct answers. A-hurricane. B-steady population growth. C-seasonal flooding. D-introducing of an aggressive invasive species. E-tsunami.

Think about he bush in your backyard. Is it alive according to the characteristics of life? Why or why not?

Description of genetic engineering

Which element is classified as a noble gas? Sulfur, oxygen, argon or nitrogen

In horses, black hair color is dominant to chestnut hair color. If the black horse is homozygous, what is its genotype? If the black horse is heterozygous, what is its genotype?

describe one way a strawberry plant can benefit from the ability to use either mitosis or meiosis for reproduction.

What are deposits brought by flowing water known as

Identify white blood cells as part of the immune system