If a boy exhibits a sex-linked trait that is carried on the X chromosome, what must be true?

His mother exhibited the trait

His mother had at least one allele

What is the term for a doctor who treats disorders of the bones, muscles, and nerves by aligning the vertebral column into its ideal position?

What would be considered a limited resource in the lower depths of the ocean

What can we infer from the stickleback fossil record about evolutionary processes occurring today? A. Evolutionary patterns observed in the fossil record are consistent with evolutionary processes occurring today. B.

Hamstrings is a collective name for the four muscles on the anterior and lateral aspects of the upper leg. Indicate whether the statement is true or false?

Who was the scientist who first proposed that all single-celled organisms should be put into their own kingdom? Anton van Leeuwenhoek Charles Darwin Carolus Linnaeus Ernst Haeckel

Which human activity has had the greatest impact on climate change? A. deforestation B. burning fossil fuels C. production of nuclear waste D. building skyscrapers

Check answers. 1. The active site A. Located in an enzyme (my answer) B. Is rich in amino acid C. Is located on a substrate D. A and B E. B and C 2. Anabolism is defined as the A. Sum of all chemical reactions B.

How are genetic characteristics associated with nonreproductive activities such as feeding affected by natural selection?

Smooth muscle is found in just one place in the body. true or false

Which of the following characteristics evolved independently in mammals and birds? A) bilateral symmetry B) amniotic eggs C) jaws D) bone E) endotherm