Which of the following could have been components of membranes that covered pre-cells in ancient earth

Which kind of action is a cause of air pollution? A. Poisons are released into a major river. B. Gasoline is burned by a car engine. C. Trash is dropped in a national wildlife preserve. D. Tuna are fished to extinction.

What are the six heaviest organs in the human body?

Mendels pea plants how do either purple or white flowers. This means that the plants A. Can self-pollinate B. have two recessive traits. C. have two alleles for the gene. D. Have two copies of a gene from one parent.

A group of nursing students are reviewing cerebral vascular disorders and risk factors in children. The students demonstrate understanding of the material when they identify which as a risk factor for hemorrhagic stroke?

Organize the steps of lipid metabolism by placing them in the correct order. Lipase breaks fat droplets into fatty acids and monoglycerides. Bile salts break apart large fat droplets. Lipoproteins pass through the cells and travel to the bloodstream.

Research scientists are trying to clone a gene. In order to accomplish this task they join two pieces of DNA. Which class of the enzymes below might accomplish this task? A: oxidoreductase B: ligase C: hydrolase D: isomerase E: lyase

What terminology would the nurse use to document a newborn who weighs 4,000 grams (8.13 lb) or more at birth?

Why does a caterpillar use captured light energy

A substance is on its fifth half-life. Which approximates the percentages of radioactive and stable isotopes, respectively? 96.9%; 3.1% 3.1%; 96.9% 12.5%; 87.5% 87.5%; 12.5%

Cephalopods are known for having highly developed nervous systems which includes a highly developed eye and the ability to change their coloration. Provide two ways that this is beneficial for organisms in this class.