Close

Users questions

What type of fish went extinct during the Cretaceous period?

What type of fish went extinct during the Cretaceous period? The Cretaceous-Tertiary extinction The other lineages of “marine reptiles” — the ichthyosaurs, plesiosaurs, and mosasaurs — also were extinct by the end of the Cretaceous, as were the flying pterosaurs, but some, like the ichthyosaurs, were probably extinct a little before the end of the […]

Read More

Why is nuclear power not a renewable energy?

Why is nuclear power not a renewable energy? This is because although the energy itself, produced by the nuclear power plants is renewable, the fuel used and required, is not. Uranium is the preferred fuel for nuclear fission in nuclear power plants. These processes produce renewable energy, although the materials are not easily available. What […]

Read More

What do ecologists model with an ecological pyramid?

What do ecologists model with an ecological pyramid? An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem. What are ecological pyramids discuss in detail the types of ecological pyramids? An ecological […]

Read More

What do cellulose and chitin have in common?

What do cellulose and chitin have in common? Similarities Between Chitin and Cellulose Both are linked through covalent β-(1→4)-linkages. They are insoluble in water. Both form crystalline nanofibrils or whiskers. The main function of chitin and cellulose is to provide structural support. What do Starch chitin and cellulose all have in common? Starch, glycogen, cellulose, […]

Read More

What happens when neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neuron?

What happens when neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neuron? When neurotransmitter molecules bind to receptors in the plasma membrane of the receiving neuron, ion channels in the plasma membrane of the receiving neuron open. If a signal from a sending neuron makes the receiving neuron more negative inside, […]

Read More

How do fungi digest their food quizlet?

How do fungi digest their food quizlet? How do fungi digest food? Fungi secrete digestive enzymes that break down organic matter into nutrients which are absorbed by the fungus. Fungi digest their food by absorption (they absorb it externally); fungi digest organic matter outside their cells walls. How do fungi metabolize? Fungi release digestive enzymes […]

Read More

What are the 10 essential amino acids?

What are the 10 essential amino acids? Ten amino acids, namely L-arginine, L-histidine, L-isoleucine, L-leucine, L-lysine, L-methionine, L-phenylalanine, L-threonine, L-tryptophan, and L-valine, were shown to be essential for the parasite’s development. Which of the 20 amino acids are essential? Your body needs 20 different amino acids to grow and function properly. Though all 20 of […]

Read More