All of these are placental mammals except

a. porpoise.

b. mouse.

c. elephant.

d. opossum.

Energy possessed or transferred by machines is called: 1) potential energy 2) kinetic energy 3) mechanical energy

Gravity on Earth is 9.8 m/s2, and gravity on the moon is 1.6 m/s2. So, if the mass of an object on earth is 40 kilo, it's mass on the moon is _ kilo and it's weight on the moon is _ Newton's

What would most likely cause the future acceleration of the expansion of the universe? O radiation from the Sun O the existence of background radiation O the continued existence of dark energy O light shifts identified by the Doppler effect

What is the scientific name for a white lion?

Nuclear dna can be extracted from bones and teeth to determine personal identification. if, however, the nuclear dna is degraded or damaged, there is another substance which is more plentiful and durable that can be analyzed.

How are ecosystems named? by the climate it is associated with by the plants that inhabit the ecosystem by the surrounding city that is close by by the surrounding country that is close by

What term is used to describe an animal that eats herbivores? A. primary consumer B. primary producer C. secondary consumer D. secondary producer

Basic unit of structure and function in the nervous system is called

Marie's pulse, breathing rate, and mental alertness have suddenly increased. it is likely that marie is experiencing the:

What do bears do to survive the winter? hibernate migrate eat less food i would say a. is correct sharpen their claws