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
OleMash [197]
3 years ago
15

What is the species introduced into ecosystems, intentionally or unintentionally, and usually by humans? some can take over - pe

rhaps destroying - entire ecosystems. the lionfish is one example?
Biology
1 answer:
cupoosta [38]3 years ago
3 0

These are called invasive species (like the Giant African Snails in Galapagos for example.)

You might be interested in
Alone in the woods, Pedro hears a noise. He thinks he sees a bear coming toward him. His heart starts pounding and then, a momen
pishuonlain [190]
<h2>Cannon -Bard theory</h2>

Explanation:

  • Alone in the woods, Pedro hears a noise. He thinks he sees a bear coming toward him. His heart starts pounding and then, a moment later, he realizes how frightened he is. This sequence of events is BEST explained by the <u>Cannon-Bard t</u>heory of emotion.

According to Cannon-Bard theory, all the emotional expressions occur due to the stimulation of hypothalamic structures present in brain. This theory also states that feeling and physiological effects of an emotional stimuli occurs simultaneously.

Here, James thinks that a bear is coming, this is a stimulus. His heart starts pounding that is the physiological effect of the stimulus and the next moment he feels frightened which is a feeling.

So we conclude that in this case, the physiological effect and feeling of emotion occurred simultaneously. So these sequence of events is best explained  by Cannon-Bard's theory.

3 0
3 years ago
Read 2 more answers
What is an amniotic egg?
nalin [4]
<span>The amniote egg is a water proof structure composed of a shell, embryonic membranes, and the living embryo. </span>
6 0
3 years ago
Phalloidin is a toxin from a toadstool (mushroom). You are studying actin dynamics and the effect of phalloidin. You add G-actin
adelina 88 [10]

Answer:

Dissociation of actin subunits occurs.

Explanation:

When we add phalloidin to a solution containing G-actin, the phalloidin binds to actin filaments more tightly as compared to actin monomers which leads to a decrease in the constant rate of dissociation of actin subunits from the ends of the filament. This dissociation stabilizes the actin filaments through the prevention of filament depolymerization. So we can conclude that addition of phalloidin to actin leads to stabilizing of actin filaments.

6 0
3 years ago
Robert Hooke, pictured above, is best known for'-
artcher [175]

Answer:

English physicist Robert Hooke is known for his discovery of the law of elasticity (Hooke's law), for his first use of the word cell in the sense of a basic unit of organisms

some of his other inventions were universal joint, balance wheel, and the diaphragm

Explanation:

6 0
3 years ago
Which blood vessels supply deoxygenated systemic blood to the alveoli?
castortr0y [4]

Answer: The Pulmonary Arteries

Explanation: They are two pulmonary arteries with on serving each human lungs, which brings deoxygenated blood to the lungs from the hilium. The arteries go into the capillaries of the alveoli. Capillaries are the thinnest ,smallest blood vessel,they supply oxygen to single tissues in all parts of the human body.

7 0
3 years ago
Other questions:
  • How have amphibians adapted to living in desert environments​
    7·1 answer
  • Which Florida county is home to Cape Canaveral Air Force Station? Kennedy
    6·2 answers
  • If you were assigned the task of constructing a cladogram representing the evolutionary relationship between amphibians, turtles
    15·2 answers
  • What information did gregor mendel know before he started his experiments?
    13·1 answer
  • Complete the sentences by matching the names of trees to the appropriate blanks. To do this, drag the names on the lappropriate
    11·1 answer
  • How is the skeletal system like a machine
    6·2 answers
  • Why doesn't mom have to worry when her 4-year-old threatens to hold his breath till he dies?
    9·1 answer
  • Which best describes the pericardium?
    5·2 answers
  • 4. Deascribe the process of wound healing
    10·2 answers
  • An organism that reproduces sexually has a diploid number of 30. How many
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!