23.5.2 Test (CST): Computer-Scored Unit Test Question 3 of 25
The function of the xylem in a plant is to transport:
A. eggs and sperm cells to the ovary of a flower.
B. dissolved sugar and auxins between the leaves and the flowers.
C. water and nutrients upward through the stem to the leaves.
tasd
D. starch and cellulose from the leaves to the roots.
SUBMIT

rocks and weathering-matching

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.