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
tensa zangetsu [6.8K]
3 years ago
8

A group of antelope leaving the herd in search of better grassland is an example of a. immigration. b. emigration. c. increasing

birth rate. d. decreasing death rate. Please select the best answer from the choices provided
Biology
1 answer:
adell [148]3 years ago
8 0
When you think about it - this is a similar case that happens in our species as well. You have groups of people who want to emigrate to different countries in hope for better grassland. 

They emigrate but are immigrants from the perspective of the grassland where they will be. 
You might be interested in
In ________ matter flows from one trophic level to another, and
Vika [28.1K]
1 is the answer because it’s talking about chemical
5 0
3 years ago
50 POINTS PLEASE ANSWER ASAP
Artyom0805 [142]

Answer:

I'm a bit confused with the question... it is worded weird.

Explanation:

By the looks of it the controlled variable is how far you dip the paper towel in the water, the independent variable is the bowl filled with water, and the dependent variable is the water climbing up the towel.

FYI: I'm not 100% positive, but I'm pretty sure these are correct for the most part. Sorry I couldn't be more help!

3 0
2 years ago
Which of the following can last for a lifetime?
Leya [2.2K]

Answer:

Natural immunization

Explanation:

3 0
2 years ago
Sodium ions, oxygen (O2), and glucose pass directly through lipid bilayers at dramatically different rates. Which of the followi
Elodia [21]

Answer:

The correct order, from fastest to slowest, for the passage of molecules and ions through the cell membrane is oxygen, sodium ions, glucose (option D).

Explanation:

The plasma membrane is a lipid bilayer, with glycoproteins and membrane proteins, which constitutes a semi-permeable barrier to the passage of substances into and out of the cell.

The speed with which a substance can pass through the membrane depends on its chemical properties -hydrophilic substances pass through with greater difficulty than lipophilic ones- requiring in some cases specialized transport mechanisms. The different rates with which a substance passes depends on this.

  • <em>Oxygen (O₂) </em><em>passes through simple diffusion, depending on a concentration gradient. It's the molecule that passes through the membrane the fastest. </em>
  • <em>In second place, there would be the </em><em>Na⁺ ions</em><em> -charged atoms- that cross the membrane by facilitated diffusion, through specific ionic channels. </em>
  • <em>The </em><em>glucose</em><em> molecule, being larger, requires the use of transport proteins, being its passage through the membrane slower with respect to oxygen or sodium.</em>

Undoubtedly, molecular weight and affinity for the plasma membrane are determining factors for the passage of molecules through the lipid bilayer.

Learn more:

Simple diffusion and active transport  brainly.com/question/6420224

4 0
3 years ago
6. Challenge: Based on the weathering patterns, guess the rock type shown in each photo. (Can anyone confirm or deny these answe
Sergeu [11.5K]

Answer:

A. = Shale

B = Granite

C = Sandstone

D = Limestone

Explanation:

Based on the weathering patterns, the rock type shown in each photo can be concluded to be as

A. = Shale: this is a form.of sedimentary rocks. It is formed from finely textured materials. Such as clay, quartz, and calcite minerals

B = Granite: this is derived from igneous rock. It has coarse texture features.

C = Sandstone: it is formed by a sand-sized grain of natural earth materials that form together

D = Limestone: it is also a form of sedimentary rock. It contains a large quantity of calcium carbonate it is formed from materials such as ancient corals and skeleton.

5 0
3 years ago
Other questions:
  • _________ blood enters the right atrium; it flows through a valve into the right ________, which pumps it through _______, which
    8·1 answer
  • Use the drop-down menus to complete the statements.
    12·2 answers
  • How we save cities from floos
    11·2 answers
  • 2. Your neighbor cannot understand why her new flowerbed now contains pink flowers. She
    5·1 answer
  • What kind of cell is shown in the illustration below?
    14·1 answer
  • Julio is studying the evolutionary history of desert cottontail rabbits, sea otters, and grizzly bears. All three species share
    15·2 answers
  • The three states of matter are modeled in the heating curve seen here. Identify ALL of the changes that must take place for a su
    9·1 answer
  • Discuss what conditions are necessary for thunderstorms to form, and what conditions are necessary for
    13·1 answer
  • Cuántos factores tiene los ecosistemas
    5·1 answer
  • Please please please help me with this!!! I don’t understand it!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!