antibiotic resistance

1.Today, scientific advances are being made at an astounding rate, and nowhere is this more evident than in our understanding of the biology of heredity. Using DNA as a starting point, are there limits to the knowledge people should acquire? Defend your answer. Because genetics is important to so many aspects of human behavio ...continues

Immune System

Hi, I need assistance with the following questions. I need references provided so that I can understand the responses. PLease do not respond if you don't provide references. Thanks for your assistance. 1.The immune system is composed of several types of cells whose coordinated, concerted effort is required for screen ...continues

Are viruses alive?

I need assistance with this question. Please provide references so I can do further research. Please do not respond if you do not provide references. Thank You. Argue for or against the statement, "Viruses are alive." The internal structure of many protists is much more complex than that of cells of multicelluar organisms. D ...continues

AP Biology: Practice Test Review

AP Biology Test Review We are doing a mitosis and meiosis lab. I need help on these concept questions. 1. Why is it more accurate to call mitosis "nuclear replication" rather than "cellular division"? 2. Explain why the whitefish blastula and onion root tip are selected for a study of mitosis. 3. List three major diff ...continues

AP Biology: Practice Test Review

The effects of pH and temperature were studied for an enzyme-catalyzed reaction. The following results were obtained. a. How do (1) temperature and (2) pH affect the activity of this enzyme? lii your answer, include a discussion of the relationship between the structure and the function of this enzyme, as well as a discussi ...continues

Are Viruses alive?

1. Are Viruses alive is this a true statement? The internal structure of many protists is much more complex than that of cells of multicelluar organisms. Does this mean that the protist is engaged in more complex activities than the multicellular organism? If not, why should the protistan cell be much more complicated?

You are a geneticist working for a firm that specializes in plant biotechnology

You are a geneticist working for a firm that specializes in plant biotechnology. Explain what specific parts (fruit, seeds, stems, roots, etc.) of the following plants you would try to alter by genetic engineering, what changes you would try to make, and why, on a) corn, b) tomatoes, c) wheat, and d) avocados. Only a few hundr ...continues

Dichotomous Key, taxonomic category to which a specific organism belongs

(See attached file for full problem description) --- In the animal kingdom, you can place animals in categories based on certain differences in the characteristics that each possesses. If you know what critical traits to look for, it is possible to separate any animal into its proper taxonomic category. Use this dichotomous ...continues

Dichotomous Key, taxonomic category to which a specific organism belongs

Please see attached document. --- In the animal kingdom, you can place animals in categories based on certain differences in the characteristics that each possesses. If you know what critical traits to look for, it is possible to separate any animal into its proper taxonomic category. Use this dichotomous key to help deter ...continues

Eco Systems

Ecosystems can change over time in a process known as natural succession. When an ecosystem is disturbed, both the physical (abiotic) and living (biotic) characteristics may be altered. Disturbances may be natural (e.g., a fire started by lightning) or anthropogenic - human caused (e.g., a fire started by a campfire.) Choose ...continues