The photograph shows rockweed. Which feature allows rockweed to withstand the constant wave action of its environment?
A. The ability to carry out chemosynthesis
B. The ability to firmly attach to rocks
C. The ability to produce its own light
D. The ability to carry out photosynthesis

B

Explanation:

This is the answer because if the rockweed is able to firmly attach its self to the rocks it would be able to withstand the constant wave action

The tendency to firmly attach to rocks allows rockweed to withstand the constant wave action of its environment.

It is a brown alga and grows in the rich intertidal zone.

The holdfast of a rockweed permits it to withstand the constant wave action of its surroundings.

Holdfast is a tiny stem-like composition which allows the weed to anchor firmly to the rocks.

The rockweeds possess some of the advantages over the normal weeds that permits them to sustain in water like the intense developed root systems.

Thus, the correct answer is option B, that is, the ability to firmly attach to rocks.

To know more about:

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

answer; /// i believe the correct answer is (thrombocytopenia); (a)