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
Darina [25.2K]
3 years ago
14

Can new habitats increase or decrease variations

Biology
1 answer:
serg [7]3 years ago
7 0
New habitats increase variations
You might be interested in
Active and passive transport of solutes across a membrane typically differ in which of the following ways? A] Active transport i
olya-2409 [2.1K]
Out of the choices given, active and passive transport of solutes across a membrane typically differ because active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy. The correct answer is B. 
3 0
4 years ago
Where do the branches of the bronchial tree ultimately end? 2. list the steps of the pulmonary circuit of the cardiovascular sys
Aneli [31]
1. The branches of the bronchial tree ultimately ends at the alveoli.
Bronchial tree consist of bronchi, bronchioles, and alveoli. Bronchi are formed as the lower part of the trachea divides into two tubes. Bronchioles are smaller tube divisions of the bronchi. It walls contain smooth muscle and no cartilage. Alveoli are tiny ends of the alveolar ducts, which functions as the site for gaseous exchange. 

2. Blood flows from the left atrium; mitral (bicuspid valves), the left ventricle, aortic valve, aorta, veins and heart, right side of the heart, superior and inferior vena cavae, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary trunk, pulmonary artery, lungs, pulmonary veins, then back to the heart...

3. Arteries and the veins differ in structures and they way they functions; Arteries carry oxygenated blood away from the heart to the body (except pulmonary artery) while veins carry deoxygenated blood back from the body to the heart (except pulmonary veins). A structural differences includes; the veins contain valves while arteries lack. Arteries have narrow lumen while veins have wide lumen. Lastly, blood carried by veins has higher pressure compared to blood carried in vessels.

4. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and the bronchioles. Blood moves in and out of the lungs throgh the pulmonary arteries and veins that connect to the heart.

5. The cartilage rings of the trachea
They are strong but flexible tissues which support the trachea or the windpipe while still allowing it to move and flex during breathing. Additionally these cartilage rings are C-shaped to provide room for the esophagus, which lies along the back side of the trachea.

6. Functions of the larynx includes;
To protect the airway from choking on material in the throat
to regulate the flow of air into our lungs
The production of sounds used for speech 
Larynx is part of the respiratory system and is located between the pharynx and the trachea. Humans use larynx to breathe, talk and swallow. 

7. Structures that make up the pathway of air through the respiratory system starting with the external nares; We start with; External nares, nasal cavity, internal nares, nasopharynx, laryngopharynx,oropharynx, larynx, trachea, primary bronchus, secondary bronchus, tertiary bronchus, bronchiole, terminal bronchiole, respiratory bronchiole, alveolar duct, alveolar sac and alveolus. 
6 0
3 years ago
Help with junior biology assignment.
uysha [10]

Answer:

1.

a)dd

b) dd

c) 0%

2.

a) 25%

b) 75%

c) 25%

3.

a) 03

b) 0

c) tt

4.

a) FF x ff OR FF x Ff OR FF x FF

b) Because all the children have freckles

5.

a) 4:0

b) 100%

6.

a) 50%

b) Bb

c) 3 out of 6 (including parents)

8 0
3 years ago
Which one of the following statements presents a condition required for the hardy-Weinberg principle to be in effect?
Aleks04 [339]
The answer is random matting occurs!
5 0
3 years ago
Read 2 more answers
What color(s)of light will drive photosynthesis by green plan most efficiently?
Anestetic [448]
<h3>C.Green only</h3>

At low light levels, green leaves are most efficient at photosynthesis. But well yeah, in sunny days, red light will work the same as green light

5 0
3 years ago
Other questions:
  • Station 1! Help pls!
    15·1 answer
  • Which is not true of lipids?
    6·2 answers
  • When Ashley visited Central Park, she saw a group of swans in the pond. All of the swans were white except one. When she recount
    7·2 answers
  • Exit <br> Prokaryotic are different from all other organisms in that their cells...?
    12·1 answer
  • Which of the following is a factor that determines the rate of impulse propagation, or conduction velocity, along an axon?a) len
    8·1 answer
  • Which feature or property of water allows plants to draw liquid water up from their roots?
    11·2 answers
  • Another step in PCR requires small single-stranded DNA primers to anneal to a target sequence on denatured DNA. Two primers are
    11·1 answer
  • What two things can happen to pyruvic acid? Explain both
    5·1 answer
  • Describe how the researcher can identify when a climax community is reached.
    14·1 answer
  • A type of grass is planted in someone's backyard to look visually appealing but has a toxin that prevents local animals from suc
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!