Blog

Because most species of animals are diploid, each individual possesses:

Which of the following are not included in asexual reproductive processes or behaviors in animals?

Which of the following is a plant organ?

The origins of life are hard to determine because of the lack of fossils. However, in 1967 Lynn Margulis arrived at a theory for the origin of eukaryotic organisms termed the endosymbiotic theory or endosymbiosis. This theory is well accepted today as the origin of eukaryotes. The endosymbiotic theory states that:

Which of the following animal tissues best protects the animal body by resisting abrasion on the body surface?

A increase in the level of which hormone  promotes fruit ripening, releases seeds from dormancy and causes leaf abscission and fall in the autumn?

What must two individuals accomplish if they are of the same species?

Hagfish, lampreys, sharks, and tuna fish are all chordates that can also be classified into which group?

Tropisms in plants are __________ while nastic movements are __________.

Plant regions of continuous growth are made up of ________.