Plants could not live if they were unable to get water and nutrients from soil. In some places, especially deserts, these resource are in short supply so plants must compete with each other for them. Which of the following is an actual strategy used by plants to keep competitors from being a problem? A) Having very spiky parts above ground

B) Releasing ‘plant poisons’ (herbicides) from their roots into the soil

A is your answer.

Explanation:

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answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above