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laila [671]
3 years ago
6

Why do leaves fall off of trees during fall and winter

Biology
2 answers:
Natalija [7]3 years ago
8 0
Because the trees go into a different state during the seasons
TiliK225 [7]3 years ago
6 0
as the days grow shorter and colder, those changes trigger a hormone in leaf-dropping trees that sends a chemical message to every leaf that says, in essence, "Time to go! Let's part company!"
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The eggs released by sponges during reproduction have proteins on their surfaces that prevent sperm from different sponge specie
Sladkaya [172]

gamete incompatibility?

4 0
3 years ago
Plss answer all! Help!
vladimir1956 [14]

Answer:

there are two types of cell one eukaryotic cell that have true nucleus (genetic material enclosed in membrane) and membrane bounded organelles and other is prokaryotic cell that donot have have true nucleus (genetic material dispersed in cytoplasm) and membrane bounded organelles.

similarities between PC and EC is that both contains cell membrane, ribosomes (not a membrane bounded organelle) .

examples of PC are bacteria , paramecium,fungi etc

examples of EC are plant and animal cells

there are two names for cell membrane i.e plasmalemma, cell surface membrane,

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3 0
2 years ago
Develop a hypothesis regarding how using contaminated or purified water might affect plant biodiversity. which pot do you believ
Juli2301 [7.4K]
Contaminated water such as polluted water can sometimes cause an explosion of new plant growth by providing necessary nutrients and food and at other times it can kill or harm plants such as by raising or lowering acidity. Plants need at least good levels of potassium, nitrogen and phosphorus for healthy growth and by corollary, biodiversity. I believe that water which contains these elements, even if it be contaminated with the right contaminants will aid in biodiversity by enhancing growth. On the other hand, if there is too much salt, for example in the water it will prevent growth and inhibit photosynthesis.
8 0
3 years ago
In muscles, ATP is generated by glycolysis from two sources of glucose. One source is glucose that is broken down from glycogen
fgiga [73]

Answer:

The answer is B a net 2 ATPs are always generated per glucose regardless of its source

Explanation

Glycogen breaks down in the muscle so as to have enough glucose for muscle contraction and it produces 2ATPs

Glycogen also breaks down in the liver to release enough glucose which gets to the blood stream and is then taken up by other cells. It also produces 2ATPs at the expense of 6ATPs

3 0
3 years ago
Which statement best explains why herbivores are not considered parasites
Finger [1]

Answer:

Hello There!!

Explanation:

The answer is=>Parasite means that the organism must live inside (intracellular) or on the outside body of the organism (extracellular). The herbivores do not live on the host (plants) for its survival. They just eat the plants and fruits for getting energy. Therefore, the herbivores cannot be called as parasite.

hope this helps,have a great day!!

~Pinky~

5 0
3 years ago
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