Hereditary diseases are mainly caused by

A. defective viruses.

B. weakened immunity.

C. abnormal chromosomes.

D. unhealthy lifestyle choices.

What is the ocean layer that shows a rapid decrease in temperature?

Given a population that contains genetic variation, what is the correct sequence of the following events under the influence of natural selection? 1. Well-adapted individuals leave more offspring than do poorly adapted individuals. 2.

Match each item to its best description A. solar nebula B. accrrtion disk C. Solar system May form after a supernova Does not spin A central star with planets around it

Scientists can use cells from one organism to produce a genetically identical organism by cloning. genetic engineering. artificial selection. gene manipulation.

Select all that apply. Characteristics of mitosis include the most common kind of cell division four daughter cells produced when parent cell divides same number of chromosomes in each daughter cell as in the parent cell different DNA in the

All ecosystems are affected by wildfires equally.

In order for an electrical message to be sent from the axon of one neuron to the dendrite of another neuron, it must transverse a space called the

Which object mos likely exerts the strongest gravitational pull on other objects

Which of the following is an inorganic compound? ammonia (NH3) glucose (C6H12O6) butane (C4H10) vinegar (C2H4O2)

Which type of fungal lung infection frequently results in productive cough with purulent sputum?