PLZ HELP BRAINLEST QUICK! Species: The purple loosestrife

1) What are some other species that occupy the same niche (eat the same things, use the same resources, etc) in the environment? In other words, what does it compete with?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity