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Questions in biology

[Terjawab] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Terjawab] How might an increase in the population of one species affect the populations of other species in an ecosystem?

[Terjawab] Which of the following properties of water is the result of strong forces of attraction between water molecules? A. Cohesion B. Specific heat C. Transpiration D. Adhesion

[Terjawab] The part of the nervous system that serves as an endocrine gland by directing the release of hormones that regulate the pituitary hormones is the:

[Terjawab] Which BEST characterizes the concept of drive states? A. We are motivated by survival instincts. B. We are motivated to keep a steady internal state. C. We are motivated to seek a stimulated state. D. We are motivated to be independent beings.

[Terjawab] Complex carbohydrates are comprised of which of the following? A. Disaccharides B. Oligosaccharides C. Polysaccharides D. All of the above

[Terjawab] Discuss the locations and importance of DNA and RNA.

[Terjawab] The organisms that push carbon to the bottom of the ocean are known as what? Why is this important to the ecosystem?

[Terjawab] What best defines identical twins? A. Twins that share 100% of their genetic material and come from one fertilized egg B. Twins that develop from two separate eggs and two separate sperm C. Twins that are born on the same day but have different fathers D. Two Babies that are simple "wombmates"

[Terjawab] Which statements are true about observations? (Select all that apply.) A. We naturally make observations about the world around us. B. Lab experiments rely on observations, but field investigations do not. C. Observations are only made in a laboratory setting. D. They are statements made based on something seen, noticed, or measured.