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
VLD [36.1K]
4 years ago
12

What are tube feet?

Biology
1 answer:
Margarita [4]4 years ago
6 0

Answer:

Explanation:

(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.

You might be interested in
Suppose a drug is developed that blocks K+ leakage channels. The drug prevents ions from passing through those channels. If this
Sav [38]

Answer: 1. The resting membrane potential would become less negative (more positive).

Explanation:

Resting membrane potential is a voltage carried by a resting (non-signaling) neuron, or called as resting potential, across its membrane.  The resting potential is determined by ion concentration gradients across the membrane, and the permeability of the membrane to each ion form.  

In a resting brain, there are gradients of concentration across the Na+ and K+ membranes. Forces shift their gradients down through channels, resulting in a separation of charges that provides the potential for rest. The membrane is much more permeable to K+ than to Na+, so the resting potential is similar to K+'s potential for equilibrium.

Hence, the correct option is 1. The resting membrane potential would become less negative (more positive).

7 0
3 years ago
Answer this please :)
STALIN [3.7K]

Answer:

Tidal energy is used for the production of electricity from water.

Explanation:

In tidal energy, tides of water is used as a source of energy which is converted into other forms of energy, especially for electricity production. It is low cost electricity production method. Tidal plants are installed inside the water on the shore of sea where tides are in great amount. The energy produced from it is clean because it does not pollute the environment.

3 0
3 years ago
Read 2 more answers
State two features in the nephron that facilitate ultrafiltration​
valentina_108 [34]

Answer:

The glomerulus is a knot of cappilaries inside the Bowman's capsule. ... Podocytes are cells that have 'foot-like extensions' which are wrapped around a capillary. This increases the surface area for filtration.

Explanation:

6 0
3 years ago
How do magnetic and electrical components of electro magnetic waves travel in relation to each other?
Anna [14]

Answer:

A

Explanation:

5 0
3 years ago
Read 2 more answers
Define decline to show its scientific meaning
svetoff [14.1K]

A decline is a situation in which a security's price decreases in value over a given trading day and subsequently closes at a lower value than its opening price!!

6 0
3 years ago
Read 2 more answers
Other questions:
  • Within a population of fish, ____________ exists in the form of body color. Some fish are orange and some fish are red.
    13·2 answers
  • What would happen if decomposition did not occur?
    5·1 answer
  • Oceanic crust is generally lower in elevation than continental crust because oceanic _____ is _____ than continental crust.
    10·1 answer
  • Which statement BEST describes how low species biodiversity affects ecological resilience?
    5·1 answer
  • Which gas is responsible for global warming and Which gas is responsible for ozone layer depletion?
    11·1 answer
  • PLEASEEEEEEE HELPPPPPP
    6·1 answer
  • Which part of the cell cycle is disrupted when you get a sunburn?
    14·1 answer
  • What are the student’s observations and inferences before he starts his investigation?
    5·1 answer
  • Defined forestry and its important in nepal?​
    7·2 answers
  • What are the three<br> parts of the hair SHAFT?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!