Answer:
c. the plant root growing down into the soil
Explanation:
The plant root going down deep into the soil is an example of positive gravitropism. Gravity pulls everything towards the center of earth i.e. downwards and roots follow the direction of gravity automatically by growing downward towards soil that is why it is known as positive gravitropism. In short we can say that root favors the direction of gravity.
Shoot on the other hand show negative geotropism/gravitropism i.e. it grows towards the opposite direction of gravity. Shoot grow towards upside direction i.e. away from the surface towards sky.
Answer:
c. folded layers
Explanation:
The rheology of the layers being folded determines characteristic features of the folds that are measured in the field.
Homologous types of chromosomes pair together to form a bivalent. They undergo synapsis which is the process of pairing. In each bivalent. there would be a total of two centromeres and four sister chromatids. crossing over is the term used for the physical exchange of material between two homologous chromosomes. A<span> chiasma</span><span> is the visible evidence that exchange of genetic material occured.</span>
Answer: Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up.
Explanation:
