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alina1380 [7]
3 years ago
7

Which statements describe hydrotropism? Check all that apply.

Biology
1 answer:
Simora [160]3 years ago
3 0

Answer:

Hydrotropism (hydro- "water"; tropism "involuntary orientation by an organism, that involves turning or curving as a positive or negative response to a stimulus") is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration.

Explanation:

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Morphine is considered a(n) ________ drug because it decreases pain.
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It would be considered an opioid.

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Non native species that takes over the nature environment of others
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What is an inherited trait that increases an organism's chance of<br> survival and reproduction? *
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3 0
3 years ago
We used new tags for the population estimate a year later. If we assume the tags stay on well over the year, what changes the pr
Naddik [55]
<h2>Mark and recapture method</h2>

Explanation:

Mark and recapture is a technique to measure the size of a population before fishing and hunting season;commonly used by fish and wildlife managers

  • It involves the marking of number of individuals in a natural population,returning them to that population followed by recapturing some of those as a basis for estimating the size of the population at the time of marking and release
  • Population size can be estimated as(N)=M*T/R

here,M=initially marked;T=total in sample second;R=marked recaptures

There are certain assumptions to this method

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  • The chance for each individual in the population to be caught are equal and constant for both the  initial marking period and the recapture period
  • One of the assumption of this method is that sufficient time must be given between the initial marking period and recapture period for all marked individuals but time period should not be very long
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If proportion of population changes then marked recapture method formula won't turn out be applicable

5 0
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