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crimeas [40]
2 years ago
12

What kind of organisms are rotifers?

Biology
1 answer:
jeka942 years ago
8 0

Answer:

Multicellular

Explanation:

they live in fresh water ponds and feeds off of some single cellular bacteria and organism.

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What muscle forms the labia of the mouth and controls most lip movement
almond37 [142]

Answer:

The correct answer will be-Orbicularis oris muscle

Explanation:

The muscle which is present in the mouth is known as the oribicularis oris which consists of various muscular fibres in a different direction.

The oris muscle is derived from the other facial muscles inserted into the lips and join with the lips controlling the movement of the lips. The muscle controls the movement by pulling down the corners of the mouth and the lips along with other muscles like the mentalis,  the triangularis and the risorius.

Thus, Orbicularis oris muscle is the correct answer.

6 0
3 years ago
Passive transpoet is the movement of particulars across the membrane from area of what to an area of what
diamong [38]

Answer:

Passive transport is the movement of particulars across the membrane from area of <u>high</u> to an area of <u>low</u> concentration.

Explanation:

Passive transport is a transmembrane cellular transport mechanism characterized by the fact that it does not require energy.

What enables passive transport is the concentration gradient of a particle, which moves across the membrane from a site of high concentration to a site of low concentration.

Two known forms of passive transport are <u>simple diffusion</u> and <u>facilitated diffusion</u>.

6 0
3 years ago
The root of a flowering plant absorbs water and mineral ions mainly through:__________A. the epidermisB. the root hairsC. the ph
fgiga [73]

B ) root hair cells I guess so.....

4 0
3 years ago
What is the primary function of antibody-mediated immunity??
KiRa [710]
Humoral immunity<span> or humoural </span>immunity<span> is the aspect of </span>immunity<span> that is </span>mediated<span>by macromolecules found in extracellular fluids such as secreted </span>antibodies<span>, complement proteins, and certain antimicrobial peptides. Humoral </span>immunity<span> is so named because it involves substances found in the humors, or body fluids.</span>
7 0
3 years ago
Where does the urea in the urine come from?
Vesnalui [34]

Answer:

Urea is produced when foods containing protein, such as meat, poultry, and certain vegetables, are broken down in the body. Urea is carried in the bloodstream to the kidneys, where it is removed along with water and other wastes in the form of urine.

Explanation:

8 0
2 years ago
Read 2 more answers
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