Which continent or continents did the Homo ergaster occupy 1.6 million years ago?

Africa

Africa and Asia

Europe and Africa

Europe, Africa, and Asia

What accounts for the way most traits develop in organisms?

What two electrolytes are shed through the skin during the regulation of water and electrolytes for thermoregulation in the? body?

If negative selection of T-lymphoctyes in the thymus never occurred, what would likely happen? The specificity of the immune system would improve. T-lymphocytes would bind self-antigens. Mature T-lymphocytes would lack CD proteins.

Atoms are the smallest particle of an element that retains the original characteristics of the element.

Endothermic reactions give off heat as they proceed true or false

What happened at Chernobyl? (first to answer this will be marked as the brainliest)

2 cycles most closely related in their role in sustaining life

Which statement explains the difference between multiple alleles and polygenic inheritance? A. Multiple allele means more than one gene contributes to the phenotype and polygenic inheritance means more than two forms of the same gene in the

Select all that apply. Which of the following are characteristics of Cnidaria? radial symmetry acoelomates bilateral symmetry coelomates asexual reproduction sexual reproduction

Which of the following correctly arranges the planets by the size of their diameter? A) Uranus < Neptune < Mercury < Earth B) Earth < Mercury < Neptune < Uranus C) Mercury < Earth < Saturn < Jupiter D) Jupiter < Saturn < Earth < Mercury