50 points now will mark brainliest, rate, and

what is true of intercellular signals that do not go through direct connections between cells such as plasmodesmata?

a. an ion-linked channel to the nucleus opens up
b. the signal is transferred to an adjacent cell for signal transmission
c. a receptor molecule accepts the signal and transports it inside the cell
d. the signal fails to reach the inside of the cell and the cell does not respond

What does natural resource management aim at ?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.