the chemical bonds were broken when they were digested and the chemical composition of the food was changed
Answer:
B.Trees C.Animals & D.Plants are all biotic factors
Explanation:
A biotic factor is a living factor on an ecosystem, the sun is an abiotic factor because it is nonliving.
Answer:
A) AFP binds to ice crystals and forms a nonpolar shell that prevents covalent bonding between water molecules to form a larger crystal. By limiting crystal growth, the cell would not freeze solid
Explanation:
Water is a "polar" molecule, which means that electron density is unevenly distributed. Water has a partial negative charge, near the atom of oxygen due to the unshared pairs of electrons and partial positive charges, near the atoms of hydrogen. Because water is polar and the protein is nonpolar, their molecules are not attracted to each other this is want prevents the ice crystals from forming.
Group of genes that are regulated together
Genes usually have related functions
E. coli <span>have cluster of 3 genes that must be turned on before it can use lactose as food</span>
Given question is incomplete. Complete question has been attached.
Answer:
C. Excessive potassium has diffused out causing hyperpolarization.
Explanation:
The nerve action potential can be divided into following stages:
- Stimulus is detected by the cell in resting stage.
- Sodium channels in the membrane open from where influx of sodium ions occur which is called depolarization
- After a while, sodium channels close and potassium channels open from where efflux of potassium ions occur which is called repolarization.
- The membrane potential further lowers due to continous efflux of potassium ions which is called hyperpolarization.
- After a while potassium channels close and membrane returns to its resting stage.
In the given figure, stage 4 depicts hyperpolarization because the membrane potential has dropped to the lowest point below -70mV. Hence, option C is correct.