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
wel
3 years ago
8

A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every si

x months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six-month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred to change the population?
Yellowstone National Park expanded its borders.

A population of wolves was introduced into Yellowstone National Park.

The amount of disease in the deer population decreased.

More grass and shrubs were planted in Yellowstone National Park.
Biology
2 answers:
jenyasd209 [6]3 years ago
7 0
It is B a population of wolves was introduced into Yellowstone National Park
Setler [38]3 years ago
3 0
B. <span>A population of wolves was introduced into Yellowstone National Park
</span>
You might be interested in
How can karyotype analysis detect genetic disorders worksheet answers?
sasho [114]
The work sheet is for you to answer so you get smarter 
4 0
3 years ago
Cross-over involves the exchange of genetic information between
Ksju [112]

2 Homologous chromosomes in meiosis, and then replicate into sister chromatids.

Hope this helps, ( or is clear enough ) if not, comment below please!!!!

3 0
3 years ago
Help me pleaseeeeeeeee
seropon [69]

1. Behavioral

2. Structural.

3. Structural.

4. Behavioral.

5. behavioral.

6. Functional

I did my best on these, hope it helps!

4 0
3 years ago
What is photosynthesis? Please help :)
shutvik [7]

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Explanation:

7 0
2 years ago
Read 2 more answers
increasing intracellular cAMP leads to smooth muscle relaxation by: Group of answer choices inhibiting IP3 channels, leading to
kirza4 [7]

Answer:

1. Inhibiting IP3 channels, leading to decreased Ca2 in the sarcoplasm and reduced contraction.  

2. Increasing the relative activity of MLCP, leading to a decrease in tension.

3. Activating K channels, increasing K leaking out of the cell which hyperpolarizes it and decreases the likelihood of Ca2 entry.

Explanation

In smooth muscle, cyclic AMP (cAMP) mediates relaxation because cAMP inhibits a specific kinase required for myosin light chain protein (MLCP) phosphorylation, thereby triggering contraction in the smooth muscles. It has been shown that cAMP inhibits 1,4,5-trisphosphate (IP3)-dependent calcium ions (Ca 2+) release by activation of the cGMP-dependent protein kinase (PKG). PKG proteins act to modulate Ca2+ oscillations by stimulating sarcoplasmic Ca2+-ATPase membrane proteins, increasing Ca2+ in the sarcoplasmic reticulum stores and Ca2+ efflux from the cells, and activate voltage-gated potassium (K) channels, thereby leading to membrane hyperpolarization and reducing Ca2+ entry through Ca2+ channels.

6 0
2 years ago
Other questions:
  • The levels of water and salt in the blood are controlled by the
    8·2 answers
  • The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.
    8·1 answer
  • How are cyanobacteria related to the increases in oxygen levels of the atmosphere?
    5·2 answers
  • What is the approximate percent of oxygen by volume present in Earth's lower atmosphere?
    6·1 answer
  • Which of the following organisms have increased the amount of oxygen
    10·1 answer
  • Water is attracted to water and held together by hydrogen bonds. *<br> adhesion
    13·1 answer
  • Why are third parties important in a political system?
    12·1 answer
  • . What does the term mutation mean in regards to human genetics?
    9·1 answer
  • You have 12 distinct mice. Which is larger: A) the number of ways to separate them into 3 groups of 4 mice
    8·1 answer
  • The map of the United States shows the level of use of a common pesticide, Atrazine. Based on the data, which conclusion is accu
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!