animals obtain the energy they need from - Answer food provided by another organism
whales come to the surface of water because - Answer they cannot get oxygen from
water
malaria is transmitted by - Answer mosquitoes
which of the following is a source of carbohydrates? - Answer potato
forest managers sometimes start small fires in order to - Answer combust chemicals
harmful to the environment
which of the following is a characteristic of mammals? - Answer produce milk to feed
their young
a unit of measurement for volume is - Answer liter
which of the following is the source of energy for most ecosystems? - Answer sunlight
rainbows, sunsets, and blue skies are all the product of - Answer fluorescence
in science, work means that a force - Answer retains the energy in an object
which of the following was invented first? - Answer revolver
photosynthesis allows green plants to - Answer absorb water
as the light beam passes through the glass, it is - Answer refracted
which of the following is a process of cell division? - Answer mitosis
what is the name of this layer of the earth? - Answer mantle
which region of the periodic table contains the noble gases? - Answer A- far right
what gives an atomic nucleus its positive charge? - Answer protons
the planet mercury has no erosion on its surface because it has no - Answer
atmosphere
penicillin is obtained from a specific kind of - Answer mold
which part makes food for this plant? - Answer D- the roots
which of the following statements about subatomic particles is true? - Answer electrons
and protons are attracted to each other