Carbon, hydrogen, nitrogen and sulphur are elements found in living cells. Which is the least common?

A. Carbon

B. Hydrogen

C. Nitrogen

D. Sulphur

Which kind of teeth do mammals use to grind their food? A. canines B. molars C. incisors D. fangs

Most organisms contain the same condons true or false

Which of the following statements about the nucleus is true? A. The nucleus usually contains a nucleolus region which is where mitochondria assembly begins. B. The nucleus is surrounded by cell membrane that lets materials in and out. C.

One of the differences between a plant and animal cell can be found surrounding the outer cell structure of the plant cell. This part of the plant cell is made of specialized sugars called cellulose.

What does a nucleotide consist of? a polymer of nitrogenous bases nitrogenous bases and sugar sugar and phosphates a nitrogenous base, a sugar, and a phosphate

Where do you think this heat lamp is being used?

Battery disposal is a disadvantage of which form of energy?

If a cell has 4 pairs of chromosomes, after mitosis each daughter cell will have how many chromosomes?

Which two families of flowering plants provide protein for the majority of humans?

A. what are the primary abiotic factors that will affect life underwater? b. Explain how the abiotic factors such as depth, Temperature, and some other mentioned in the questions before affect aquatic organisms.