Organelles are specialized structures that perform various functions in the cell. What is the function of the nucleus in plant cell? Structure that organizes motion of chromosomes

Structure that contains DNA and regulates genes

Stack of membranes that packages chemicals

(This is 7th grade science).

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons