The minimum level of stimulation required to trigger a neural impulse is called the Read more
Which organisms belong to more than one food chain? Read more
How would you know if two chromosomes were homologous Read more
29) which feature do prokaryotic and eukaryotic cells share? Read more
14. nekton include all animals that live at or in the ocean bottom o move independently of ocean currents live both on land and in the water drift with ocean currents Read more
What is 18,000 expressed in scientific notation? 1.8 × 10–4 1.8 × 104 1.8 × 10–5 1.8 × 105 Read more
Meiosis terminology drag the labels from the left to their correct locations in the concept map on the right. Read more
Which of the following is an example of potential rather than kinetic energy? a) water rushing over niagara falls b) light flashes emitted by a firefly c) a molecule of glucose d) a crawling beetle foraging for food Read more
What structures allow water vapor to escape the leaves of a plant? Read more
Which is a key element found in all carbohydrates, lipids, proteins, and nucleic acids? a. ammonia b. carbon c. nitrogen d. legumes Read more
The data in the table has been converted into a bar graph, as shown below. amount of carbohydrates in fruit mc026-1.jpg mc026-2.jpg which reason provides the best explanation of why a bar graph was selected to show the data in… Read more
What two substances give the sponge support? Read more
The pigmented portion of the eye that has a rounded opening through which light passes is the Read more
Anton van leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms. anton van leeuwenhoek was the first microbiologist to use a microscope to examine environmental samples for the presence of microorganisms.… Read more
Which of these manufactures cellular membranes by adding membrane proteins and phospholipids to its own membrane? 1. nucleolus 2. rough endoplasmic reticulum 3. ribosomes 4. lysosomes 5. golgi apparatus Read more
Two common metamorphic rocks that typically lack foliation are and Read more
Cual es la tendencia de los metales al formar en lances Read more
Which of the following arteries sends branches to the stomach and liver? a. celiac artery b. superior mesenteric artery c. inferior mesenteric artery d. renal artery e. splenic artery Read more
Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. in animal cells, which of the following organelles contains these hydrolytic enzymes? a) peroxisome b) glyoxysome c) chloroplast d) lysosome e) central vacuole Read more
How many times does a typical person blink her eyes in a lifetime? mastering physics? Read more
Biologists divide mechanisms of reproductive isolation into Read more
The spheres that only earth has are a a.) hydrosphere and lithosphere b.)hydrosphere and atmosphere c.)hydrosphere and biosphere d.)hydrosphere and cryosphere Read more
Which best describes how a recession develops as demand and production decrease? Read more
By which process do plants lose their water to the atmosphere? Read more
G How do cytochromes donate and accept electrons? Each cytochrome has an iron‑containing heme group that accepts electrons and then donates the electrons to a more electronegative substance. Cytochromes donate electrons directly to the energy‑carrier molecules NAD + NAD+ and… Read more