Two black mice are mated several times. They have produced 23 black and 8 white offspring. What can you say about the parents? a) both are pure black b) both are hybrid c) one is pure; the other is hybrid d) you can't make a conclusion

What evidence must be considered when determining whether or not a trait is an adaptation? (site 1)

The Seven Sisters, seven stars located more than 400 light-years away in the Taurus constellation can be seen here with Venus and another constellation, Orion. The seven stars stay grouped together but seem to move, like the planet Venus.

Propionibacterium A. produces propionic acid. B. produces lactic acid. C. is responsible for the holes in Swiss cheese. D. requires aerobic environments. E. produces propionic acid AND is responsible for the holes in Swiss cheese.

Drag the tiles to the correct boxes to complete the pairs. Match the phases in the cell cycle to the events that occur in each phase.

Why is the circulatory not involved in insect respiratory mechanisms?

What do a door and a venus flytrap leaf have in common

Where would be the best place to find an alpine glacier A) Antarctica B) Greenland C) the Himalayas D) the North Pole

The Sun is A. a very small star. B. a medium-sized star. C. the largest star in the universe. D. the same size as all the other stars.

6. The blood component that has the greatest affinity for oxygen is the a) Lymphocyte" (b) Leucocytes (c) Erythrocytes (d) Thrombocyte

According to the endosymbiosis theory scientist believe early eukaryotes form from prokaryotes why do scientist believe that prokaryotes existed earlier eukaryotes