Where is most of the fresh water on Earth?

Tropism can be defined as the Choose one: A. ability to infect a particular type of cell within the host. B. mechanism of entry into a host cell for bacteriophages. C. emergence of a new type of virus. D. ability to infect a broad range of hosts.

Organizational strategy can be divided roughly into two categories: a. formulation and b. implementation. while there is legitimate crossover between the two, how would you characterize the issues involved in each effort?

How many different species are present after the addition of two?

Which example describe biotic and abiotic factors interacting with the environment? A a valley filling up with rain water b sunlight shining through a window c oxygen circulating in the atmosphere d dolphins communicating with each other

Decomposer serve a key role in the nitrogen cycle primarily because they break down plant and animal waste and release nitrogen into the atmosphere true or false

Dna stands for what in biology

Coal is used to produce energy. The harmful gases produced by coal are cleaned up by a method which needs a large amount of limestone. Predict and explain the long term effect on the environment of obtaining and using limestone.

True or false two genes may not segregate independently if they are on the same chromosmoe

Blood pressure rises and falls in a pattern corresponding to the phases of the

Immune system cells enter a resting phase after undergoing mitosis. when activated-for example, by an infection-they can reenter the sequence of events in the cell cycle that leads to cell division.