Which makes viral infections difficult to defeat

(A) The immune system must attack the body's own cells

(B) Macrophages work slowly

(C) Viruses live outside of cells

(D) Viruses are attacked by a nonspecific immune response

When during the cell cycle do chromosomes first become visible? a.) during interphase b.) during cytokinesis c.) during prophase d.) during the G1 phase

If a woman's egg cell that is fertilized by a sperm contains a mutation, who would this mutation affect?

In a population of lizards, 25 percent have dark coloring and 75 percent have light coloring. over time, the environment where the lizards live becomes forested.

What is 3.7 plus 5.023 what is the answer?

Very small and very large babies are most likely to die, leaving a narrower distribution of birth weights. this is an example of

If a diet does not provide adequate carbohydrate to meet immediate energy needs, the body compensates by altering its metabolism of other nutrients. insufficient dietary carbohydrate can lead to elevated levels of ketone bodies.

If an enzyme-mediated reaction were carried out at a temperature that was higher or lower than optimal, the vmax for the reaction would probably be

Which of the following is not a mechanism of microevolution? Group of answer choices migration (gene flow) natural selection speciation genetic drift

What weather factor is also a measurement of energy held within the air? Humidity Pressure Temperature Wind

What is the probability that, in an organism with a haploid number of 12, a sperm will be formed that contains all 12 chromosomes whose centromeres were derived from maternal homologs?