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12345 [234]
3 years ago
12

What is the answer to this question?"explain two difficulties an ecologist might have in counting a population of migratory bird

s. Develop and explain a method for estimating the size of such a population"
Biology
1 answer:
dimulka [17.4K]3 years ago
6 0
<span>It may be difficult for ecologists to determine the size of a bird population if that population migrates to different locations throughout the year. During migration, some birds may split off from the group and not return, others may die, and still others may join. Therefore, the bird population will be in constant flux. It is hard to know, when the birds return to their prior location, if the population consists of the same group of birds (in addition to deaths and births) or whether it has grown or shrank through other means. However, to estimate the size, an ecologist can track a migratory flock through several years, counting each year to get a general sense of the population size. Additionally, given one measurement, an ecologist could consider the average lifespan and birth rates of the population to extrapolate the size of the population in subsequent years.</span>
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One end of the rope is vibrated to produce a wave with a wavelength of 0.25 m. The
evablogger [386]

Answer:

3) 0.75m/s

Explanation:

The wavelength of a wave is calculated using the formula;

λ = v/f

Where!

λ = wavelength of wave (m)

v = velocity or speed (m/s)

f = frequency of wave (Hz)

According to this question, one end of a rope is vibrated to produce a wave with a wavelength (λ) of 0.25 m and frequency (f) of 3.0 Hz.

Using λ = v/f

v = λ × f

v = 0.25 × 3

v = 0.75m/s.

5 0
3 years ago
Describe the behavior of the frog heart that you can elucidate from the force recording (e.g., mechanical events). How can you u
Sladkaya [172]

Answer:

P wave and R wave

Atrial contraction = P wave

Ventricular contraction = R wave

Explanation:

The behavior of the frog heart from force recording  can be classified into ; P wave and R wave.

utilizing the ECG ( Electrocardiogram) data the aspect of the force recording that is due to atrial contractions is the ; P wave while the force recording that is due to ventricular contractions is the ; R wave  the ventricular contractions is also known as QRS

ECG is used to record the electrical activities of a heart at rest

3 0
3 years ago
What are domains in biology? Question 8 options: internet website classification system highest ranking of organisms in taxonomy
lora16 [44]

Domain is the highest ranking of organisms in taxonomy.

The correct option is b.

<h3>What do you mean by domain?</h3>

Domain is the highest ranking of the biological system.

In the system there are three domains

  • Archaea
  • Bacteria
  • Eukarya

This is the highest classification, after this further classification of living organism is done.

Thus, the correct option is B

Learn more about domain

brainly.com/question/1634690

7 0
2 years ago
What part of the cardiovascular system is responsible for the one-way flow of blood through the chambers of the heart?
Ilya [14]
It would be the atria i think

5 0
3 years ago
Fragmentation of habitats can be alleviated through the building of ________________ , which allow migrating animals to cross hi
deff fn [24]

Answer:

movement corridors

Explanation:

Animal movement corridors are elongated, naturally vegetated parts of the landscape used by animals to move from one habitat to another.

3 0
2 years ago
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