Which of the following statements is true? (there may be more then one answer)

1. all multicellular organisms have circulatory systems.

2. all multicellular organisms have specialized cells.

3. All multicellular organisms have skeletal systems.

Explain the difference between using dna profiles to determine paternity and to match a tissue sample with a suspect

He graphic shows the island of Krakatoa, which disintegrated in 1889, due to the largest volcanic eruption in recorded history. In the century since the eruption, the island has re-formed from lava flows.

How will the movement of water affect a cell if it is transfered from hypotonic solution to a hypertonic solution?

What is the main significance of the biogeochemical cycles? affect global weather patterns enable the evolution of diverse life forms recycle and redistribute nutrients to support life act as cleaning mechanisms that purify the environment create

Describe how homologous chromosomes are different from sister chromatids

When a protein is denatured, why does it lose its functionality?

This is a rotating machine that converts the kinetic energy of the wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a grinding stone, the machine is usually called a windmill.

In what way are slime molds similar to kelp?

What does not exist in a supersaturated solution

When dust and ash particles from a volcanic eruption block out sunlight and reduce solar radiation, earth experiences the. This results in temporary climate cooling