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
Salsk061 [2.6K]
2 years ago
13

Which of the following best predicts and justifies how the proportion of the Tibetan population with big blood vessels living in

the mountains will change over the next 1,000 years (assuming conditions remain stable)?
Question 2 options:

I predict that the proportion of individuals with big blood vessels living in the mountains will decrease because there is a variation in blood vessel size and those with the smaller blood vessels can store more red blood cells than larger vessels, so more oxygen can be moved to the body cells. Therefore, they have a better chance of surviving and passing this trait on to their offspring.


I predict that the proportion of individuals with big blood vessels living in the mountains will stay the same because there is a variation in blood vessel size and that variation will remain in a population. The is what is so cool about humans, we are all so unique.


I predict that the proportion of individuals with big blood vessels living in the mountains will increase because there is a variation in blood vessel size and those with the bigger blood vessels can deliver more oxygen to the body cells and therefore have a better chance of surviving and passing this trait on to their offspring.


I predict that over 1,000 years, the proportion of individuals with big blood vessels living in the mountains will not change because a change can’t happen to an individual, an individual can only increase the amount of red blood cells it makes, not its blood vessels.

Biology
1 answer:
inysia [295]2 years ago
7 0

Answer:

Over 1,000 years, the proportion of individuals with big blood vessels living in the mountains will not change because a change can’t happen to an individual, an individual can only increase the number of red blood cells it makes, not its blood vessels.

Explanation:

You might be interested in
-
Tems11 [23]

When the disease has been throuh you or you had your vaccination done. The immune system recognize the disease and make antibodies.

5 0
2 years ago
Please help me answer this its for a module 7 biology review
GREYUIT [131]
<em>1. </em><span><em> the theory that Earth's outer shell is divided into several </em></span><em>plates</em><span><em> that glide over the mantle</em>
<em>2. I am not sure</em>
<em>3. </em></span><span><em>Earth's mantle contained convection cells that dissipated radioactive heat and moved the crust at the surface</em>
<em>4. </em></span><span><em> supercontinent that existed during the late Paleozoic and early Mesozoic eras.</em>
<em>5. </em></span><span><em> the </em></span><em>theory</em><span><em> that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "</em></span><em>plates</em><span><em>" that move around across the earth's surface relative to each other, like slabs of ice on a lake.</em>
<em>6. </em></span><span><em>Africa and South America.</em>
<em>7. I am not sure</em>
<em>8. </em></span><span><em>a small area or region with a relatively hot temperature in comparison to its surroundings.</em>
<em>9. </em></span><em>As the plate moves over a fixed spot deeper in the Earth where magma (molten lava) forms, a new volcano can punch through this plate and create an island. </em>The Hawaiian Islands are believed to be formed from one such 'hot spot'.
8 0
2 years ago
Give the source of information (author, title, source,pages
Mila [183]

There are microorganisms that are able to live in extreme environments under adverse conditions of pH, temperature and salinity. These microorganisms are classified as extremophiles.  Within the group of extremophiles there are halophilic bacteria, which are those capable of living in extremely saline environments.

One biological factor that all living things are subject to suffer from is osmotic pressure. Halophilic microorganisms have developed mechanisms to adapt to saline environments where osmotic pressure acts with great intensity on individuals. These bacteria change the chemical composition of their membranes and also accumulate osmoprotective compounds in their cytoplasm to compensate for osmotic stress.

RAMIREZ, N; SANDOVAL, AH  y  SERRANO, JA. Las bacterias halófilas y sus aplicaciones biotecnológicas. Rev. Soc. Ven. Microbiol. [online]. 2004, vol.24, n.1-2 [citado  2019-09-22], pp. 12-23 . Disponible en: <http://ve.scielo.org/scielo.php?script=sci_arttext&pid=S1315-25562004000100004&lng=es&nrm=iso>. ISSN 1315-2556.

6 0
2 years ago
Which of these is not a characteristic of stomata?
EleoNora [17]

Answer:

I believe its C

Explanation:

Hope this helps!  

6 0
2 years ago
Read 2 more answers
What do high and low air pressure systems mean in terms of density?
Arada [10]

<span>There are two physical differences between Low pressure systems and </span>High pressure systems.

First, is the circulation surrounding them.

Secondly, is the atmospheric motion that they cause.

Low pressure systems circulate counter-clockwise. High pressure systems circulate clockwise. These "motions" are the building blocks in our atmosphere. They give us our weather.

A Low’s counter-clockwise circulation forces air upward (ultimately resulting in condensation, cloud formation and ultimately precipitation). A High’s clockwise circulation causes a sinking motion in the atmosphere, resulting in fair/clearer and often sunnier skies. 

5 0
3 years ago
Other questions:
  • Local winds are created by _____.
    10·1 answer
  • A geneticist crossed pure breeding black mice with pure breeding brown mice. All the 992 mice in F1 generation had black coats.
    13·1 answer
  • Turtles, lizards, snakes, and crocodiles are which of the following? select one of the options below as your answer:
    10·2 answers
  • Do plant cells perform cellular respiration?
    8·1 answer
  • At each stage of production, sterility of the preparation is a major consideration. When considering appropriate measures to imp
    11·1 answer
  • What is the name given to the earliest intracellular vesicle that contains material opsonized by macrophages?
    14·1 answer
  • Which factors are involved in earthquake formation? Check all that apply. plates moving rocks breaking stress that decreases fau
    10·2 answers
  • A geologist finds four layers of sedimentary rock. She determines that no geologic events have shifted the layers. She labels th
    9·2 answers
  • Question6
    13·1 answer
  • what is the evidence that richard wrangham put forward to support his hypothesis that intraspecies aggressiveness was common in
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!