What is a mutagen?

O

A. A way to test for chromosomal mutations

O

B. An environmental agent that changes DNA

O

O

C. A mutatign that is inherited from parents

D. A type of mutation involving chromosomes

Which best describes the negative impact of human water use? A. Food can be produced in dry areas. B. Increased runoff carries fertilizers. C. Food can be produced through drought years. D. Water can improve the livelihood of farmers.

Marissa is walking along the beach and finds an unknown organism on the shore. It has bilateral symmetry, a nongelatinous, segmented body that is bigger than 0.5 mm, an exoskeleton, and jointed appendages.

What are the two categories of behavior? Provide an example of each.

Can non disjunction lead to trisomy

The scientific name for a polar bear is Ursus maritimus. The scientific name for an American black bear is Ursus americanus. Which of the following statements is true? 1Polar bears are part of the maritimus genus.

Within which structure does the placenta normally develop

A 29-year-old female presents with fever, cloudy urine, flank pain, and hematuria. these signs and symptoms support which diagnosis

What is the term for a male reproductive cell?

What happens if people keep killing sharks and who wants to stop it and how may do we kill a year

In which conditions did the water move through the cell membrane when the cell was surrounded?