Which of these statement best supports the theory that salamanders may have evolved from certain type of fish

Trophic pyramids demonstrate the "10 percent rule of ecological efficiency. applying this concept to sustainability, at which level would humans have the smallest ecological footprint?

Definition of heterozygous

Compare the cancerous stomach tissue to the normal stomach tissue. How many cells are undergoing mitosis (prophase, metaphase, anaphase, telophase) for the normal stomach cells?

Select the correct answer. ALL Answers that You Put must be correct. Tyler is admitted to the hospital after an accident.

7. Small lipid molecules are in high concentration outside a cell. They slowly cross the membrane into the cell. What term describes this action? 8. Does it (answer to #7) require energy?

Which is the mechanism by which improper excision of a prophage from a bacterial chromosome results in packaging of bacterial genes near the integration site into a phage head?

The tundra biome has extremely cold temperatures during much of the year and a hard sublayer of permanently frozen soil called permafrost. Which of the following adaptations would plants in the tundra most likely have? A.

When plants of a particular species are growing too close to each other, crowding may eventually lead to mortality, known as self-thinning. this type of mortality is density-dependent. oscillating. exponential. density-independent. random?

the plant can either have a dominant allele or a recessive allele what would be a reason that is not a hardy weinberg equilibrium

What does DNA not contain?