Examlex
H.V.Wilson worked with sponges to gain some insight into what was responsible for holding adjacent cells together.He exposed two species of differently pigmented sponges to a chemical that disrupted the cell-cell interaction (cell junctions) ,and the cells of the sponges dissociated.Wilson then mixed the cells of the two species and removed the chemical that caused the cells to dissociate.Wilson found that the sponges reassembled into two separate species.The cells from one species did not interact or form associations with the cells of the other species.How do you explain the results of Wilson's experiments?
Nation's Exports
The goods and services a country sells to buyers in other countries, contributing to its gross domestic product (GDP) and economic health.
Balance of Payments
A comprehensive record of a country's international transactions over a period, showing the total trade of goods, services, and financial assets between residents and non-residents.
Overall Economic Activity
The total amount of production, consumption, saving, and investment happening in an economy at any given time.
Exports and Imports
Exports refer to goods and services sold by a country to other countries, whereas imports are goods and services bought by a country from other countries.
Q4: Which of the following statements concerning saturated
Q7: One mole (mol)of glucose (molecular mass =
Q16: Which of the following is true when
Q22: The light reactions of photosynthesis supply the
Q36: Living organisms increase in complexity as they
Q42: In the above diagram,the structure labelled B
Q50: When electrons flow along the electron transport
Q65: Plants that are capable of thriving in
Q68: The cell membranes of Arctic ice fish
Q84: Compared with ³¹P,the radioactive isotope ³²P has<br>A)a