1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yaroslaw [1]
2 years ago
15

Early one spring, a group of bird-watchers counted 30 different species of birds in a tract of forest. In the early spring two y

ears later, the bird-watchers counted 15 species in the same area. Which statement best summarizes this situation?
Birds follow different migratory paths each year.

The forest shows a decrease in biodiversity.

Human beings disrupt the presence of animals in ecosystems.

It is important to study living things to better understand the earth
Biology
1 answer:
Gemiola [76]2 years ago
5 0
The forest shows a decrease in biodiversity
You might be interested in
What is closer to the equator 10 degrees south or 20 degrees north
zimovet [89]

Answer:

10 degree north

Explanation:

Hope it helps:)

6 0
2 years ago
Which of the following most likely results in a decrease in a blackbird population
dexar [7]
Bright colors such as flowers or light green bushes/trees would result in an decrease in a blackbirds population because the blackbird wouldn't be able to blend into its environment due to the dark color it has, allowing many predators to spot it. So brighter colored environments would result in the decrease of the blackbird population.
3 0
2 years ago
Where is dna found in eukaryotic cells? why is this important?
Arturiano [62]

Answer:

nucleus and we need dna so we can figure out people in our past

Explanation:

8 0
2 years ago
Some reflexes, like the rooting, sucking and grasping reflex, are theorized to exist because
AveGali [126]

Some reflexes are theorized to exist because they have the survival value. Sigmund Freud First to theorize that we pass through different stages, behaviour is governed by the reflexes that we are born with, start to develop schemata, but need to develop permanence.

3 0
2 years ago
What cellular structures can be observed with the aid of light microscopy and electron microscopy?​
Serjik [45]

With a light microscope one can view the nucleus and endoplasmic reticulum, large vacuoles etc

The resolution of a light microscope is dependent on the wavelength of light that is the main beam of illumination. Light has approximately 0.4 um (UV)- 0.7um (Infrared) wavelength. Organelles smaller than about 0.5 um will be difficult to discern with a light microscope.

With an electron microscope one can view, in addition, even the ribosomes and mitochondria, chromosomes, tubules etc.

An electron microscope can discern very minute details of a cell. This is because its resolution is dependent on the very small wavelength of a beam of electrons which is approximately 0.002 um (about 10,000 times powerful than a light microscope)

8 0
3 years ago
Other questions:
  • 1) Lichens, represented by this symbiotic relationship, are responsible for _____________ or the establishment of a new site for
    6·1 answer
  • Which of the following is the amino acid that appears at the N-terminus of all newly translated prokaryotic and eukaryotic polyp
    5·1 answer
  • What term describes the form of a gene that produces a specific trait such as eye color?
    9·1 answer
  • Changing a river into a lake is basically what a large dam does. One reason we do this to create reservoirs of fresh water. Howe
    12·2 answers
  • How did the 1977 drought on daphne major cause evolutionary change in the medium ground finch population?
    8·1 answer
  • What are the seven classification levels in Linnaeus’ system?
    15·1 answer
  • Which would be the correct answer​
    5·1 answer
  • What important book did Lamarck write
    13·2 answers
  • Write a paragraph (7-11 sentences) explaining how chemistry affects your everyday life
    8·1 answer
  • What is the process of finding the complimentary strand of DNA is called?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!