Biology

The random change in the frequency of a gene is

Two ways bacteria cause disease is by using the cells of the organism they infect as food and by

What is the correct sequence of structures in the asexual reproduction of a water mold?

In sexual reproduction of the watermold, the hyphae form two structures, called the antheridium and the oogonium. These strucutures produce male and female nuclei, which then

Which protozoan's sexual reproduction is described below? Meiosis produces gametes. Then gametes from two organisms fuse to form a new organism with a new combination of genetic material.

Genetic drift is most likely to affect a population that is

In a prokaryote cell

The presence of a nuclear membrane, photosynthetic capability, and a multicellular for can be characteristics of members of which kingdom(s)? I. Animalia II. Protista III. Plantae

In eukaryotic cells, chromatic is found in the

Plantlike protists that have pectin in their cell walls and gold-colored chloroplasts, and store food as oil rather than as starch, are called

In a ciliate, such as a paramecium, what are trichocysts used for?

Unlike true fungi, funguslike protists:

Why are viruses considered parasites?

When a mosquito carrying the sporozoan Plasmodium bites a human, Plasmodium sprozoites enter the bloodstream and infect liver and red blood cells and multiply. The infected cells burst, releasing parasites into the blood stream. This process causes the disease:

Fossil evidence for evolution shows that: