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Questions in biology

[Free] Human evolution - comparing primates

[Free] Which of the following conditions are NOT applicable to the Hardy-Weinberg Equilibrium?

[Free] Where does embryo development take place in oviparous animals?

[Free] The Siberian Husky is a medium dog, weighing between 16-27 kg (35-60 lbs). These dogs have strong pectoral and leg muscles, allowing them to move through dense snow. If they had heavier muscles, they would sink deeper into the snow and move slower. Yet, if they had lighter muscles, they would not be strong enough to pull sleds and equipment. This is an example of which type of natural selection? A) Directional selection B) Stabilizing selection C) Disruptive selection

[Free] Why do you think parasitism exists, despite one of the organisms being harmed by the relationship?

[Free] Describe the main features that define life in the material sense.

[Free] Traits of vertebrates include: A. An endoskeleton made of bone or cartilage. B. An excretory system that includes a pair of kidneys. C. A system of muscles that enable movement. D. All of the above

[Free] What characteristic of amphibians necessitates that they live near water?

[Free] Eukaryotic organisms that are neither fungi, plants, nor animals are members of which kingdom? a. Animalia b. Plantae c. Fungi d. Protista

[Free] What is the food chain in a temperate ocean? Describe the general food interaction of plants and animals. Draw an example.