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
harina [27]
3 years ago
11

Why might humans purposefully cause disturbances in an ecosystem? Explain

Biology
1 answer:
irina1246 [14]3 years ago
8 0

Alot of humans might not now they are even harming the systems by smoking or littering.

You might be interested in
A certain mRNA molecule has the following sequence:
jarptica [38.1K]
A. There are 4 codons
Idk B
7 0
3 years ago
Women who take fertility drugs to assist in becoming pregnant have increased chances of giving birth to
Nata [24]

The correct answer is option (d) that is dizygotic twins.

The dizygotic twins also known as non-identical twins or fraternal twins, that is, two siblings who come from distinct eggs or ova, which are discharged at the similar time from an ovary and are fertilized by different sperm.

4 0
3 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
When the following crosses of pea plants, give the flower color of offspring and ratio expected (blue is dominant) A cross of bl
arsen [322]

Answer:

the right awnser is 3 b and 1 w vote brainliest this is right.

Explanation:

7 0
3 years ago
What would happen to a cell if it underwent all the activities at once? Please help me
nadezda [96]
If a cell was to undergo all the activities, eg cell division my mitosis, it results in growth. When we were still zygotes, cell division happened by mitosis resulting in the grown ups we are now. Over division results in growth of cancer cells. And if the body exercises, Lymphocytes are produced more, resulting in more of them circulating in blood preventing disease attacks
3 0
3 years ago
Other questions:
  • Advantages of evergreens
    7·1 answer
  • Why do hydras use its stinging cells?
    5·2 answers
  • What skill is a scientist using when they record the sounds that dolphins make? a. analyzing data b. making a hypothesis c. draw
    6·1 answer
  • Kokkokko12 help me with these question
    11·1 answer
  • How may the height of a water table create a spring
    9·1 answer
  • 8-4 Discounting the Transverse Carrier Model. At one time, membrane biologists thought that transport proteins might act by bind
    9·1 answer
  • 20. A solution of pH 2.8 is?<br> A. acidic<br> B. basic<br> N. neutral
    13·1 answer
  • which of the following is true about the Earth’s layers? A The asthenosphere is the thickest of Earth’s layers. B All of the lay
    13·1 answer
  • Help me with the picture
    9·2 answers
  • I need help TnT
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!