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valentinak56 [21]
3 years ago
13

If you help me I'll mark you as a brain list

Biology
1 answer:
lisabon 2012 [21]3 years ago
5 0

Answer:

picture is of a heart

superior venacava bring deoxy blood to left ventricle which goes to lungs becomes oxygenated carried by atrium to heart which pumps blood to body

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PLEASE ANSWER FAST!!!What characteristic makes osmosis different from diffusion?
Papessa [141]
B. Net movement in osmosis is from areas of higher concentration to areas of lower concentration. Net movement in diffusion occurs from areas of higher concentration to areas of lower concentration.
6 0
3 years ago
Read 2 more answers
What would win in a fight? A Grizzly Bear or a Silverback Gorilla?
vazorg [7]

Not that that would ever happen, but most likely a Gorilla due to strength.

8 0
3 years ago
In Year 1, suppose a new predator that could not differentiate between the light green and dark-green lizards was introduced on
Oksanka [162]

Answer:

C. The ratio would not show any changes in the following year.

Explanation:

Since the introduced (and only) predator can not differentiate between the tone of the lizards (dark and light), you can assume it will feed from them in an equal proportion, so the ratio between dark green and light green lizards will not be affected.

6 0
3 years ago
Is the movement of water along the concentration gradient
Nuetrik [128]

Answer:

<em>- Is the movement of water along the concentration gradient: </em><em>Osmosis</em><em>. </em>

<em>- Is the use of energy to move the particles against the concentration gradient: </em><em>Active transport</em><em>. </em>

<em>- Is the movement of particles by diffusion without energy: </em><em>Simple diffusion</em><em>. </em>

<em>- Is the movement of particles along the concentration gradient: </em><em>Passive transport</em><em>.</em>

Explanation:

The mechanisms of cellular transport involve all the processes that the cell carries out to incorporate substances into its interior or send them to the extracellular space, through its semipermeable cell membrane.

<h3>- Osmosis</h3>

Is a type of transport that consists of the passage of water from a space with a lower concentration of solutes to one with a higher concentration, in order to reach equilibrium, following a concentration gradient.

The concentration gradient is given by the difference in concentration between two substances, which indicates the direction in which molecules, such as water, should move from one place to another.

<h3>- Active transport</h3>

Unlike passive transport mechanisms, which depend on a concentration gradient that determines the movement of particles, in active transport there are two characteristics that define it:

The passage of substances into the cell against a concentration gradient.

The use of energy to carry out this process.

In this case, the passage of substances through the cell membrane will be according to the requirements of the cell, or when they cannot pass through the membrane.

<h3>- Simple diffusion</h3>

According to the characteristics of the cell membrane, some substances can pass freely through it while others require special mechanisms. When a molecule is able to pass through the membrane without the use of special mechanisms or energy we speak of simple diffusion.

In a cell membrane, whose composition is by hydrophobic or non-polar lipid molecules, simple diffusion allows the passage of non-polar molecules, gases and alcohol.

<h3>- Passive transport</h3>

Refers to the mechanism of entry and exit of substances from the cell that does not require the use of energy.

The mechanisms involved in the passive transport of the cell are simple diffusion, osmosis, facilitated diffusion - which requires special conveyors or channels - and ultrafiltration, which depends on hydrostatic pressure. Examples of substances using this mechanism are lipid molecules, water and electrolytes.

Learn more:

Lipidic bilayer and cellular transport brainly.com/question/6955159

3 0
3 years ago
Calculate the displacement of the volleyball in sample problem 2f when teh volleyballs final velocity is 1.1 m/s upward
insens350 [35]
The givens are as follows:
initial velocity (vi) = 6 m/sec
acceleration = -9.8 m/sec^2 (the negative sign refers to the direction)
final velocity (v) = 1.1 m/sec
initial position (xi) = 0 meters

Now, we will use the equations of motion to get the displacement as follows:
v = vi + at
1.1 = 6 - 9.8t
9.8t = 6-1.1 = 4.9
t = 0.5 sec

x = xi + vit + 0.5at^t
x = 0 + (6)(0.5) + 0.5(-9.8)(0.5)^2
x = 1.775 meters
6 0
3 years ago
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