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3 years ago

Look at the food web shown above. Which of the organisms act as producers in this ecosystem?

2 answers:

8 0

There is no image of a food web but a producer is an organism that creates its own food. Producers are also known as autographs and they get their energy from the sun, chemicals, and water. They turn it into sugar called glucose. An example of producers are plants.

The answer is A. plants.

A plant is an example of a producer as stated above.

Best of Luck!

Levart [38]3 years ago

3 0

Answer:

Plants.

Explanation:

Producers is an organism in an ecosystem that can make its own food. Plants use a process called "Photosynthesis" in order to make the food it needs to survive. Other organisms have to eat a different organism in order to survive,

Thus, the answer is (A)

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Some rattlesnakes in a population have markings that help the snakes hide. The snakes with these markings catch more prey,live l

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3 years ago

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A soccer player is running at a rate of 6m/s. He then stumbles over an opponent's foot falling & rolling to a stop. This too

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Answer:

His acceleration was -1/5 m/s²

Explanation:

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3 years ago

Match the cell adhesion or junction with the appropriate choice. Drag the terms on the left to the appropriate blanks on the rig

pav-90 [236]

Answer:

The missing options are:

A) protein subunits associated with gap junctions.

B) a type of adhesive junction connecting an epithelial cell to the basal lamina.

C) collection of fibrous intracellular attachment proteins.

D) create a permeability barrier.

E) button-like points of strong adhesion between two cells.

F) hollow cylinders associated with gap junctions.

G) type of adherens junction connecting cells with the extracellular matrix.

H) intermediate filaments associated with plaques.

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments.

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms.

L) point of cytoplasmic contact between two cells.

M) anchors cytoskeleton of one cell with that of a neighboring cell.

Set of answers are:

A) protein subunits associated with gap junctions. Conexin

B) a type of adhesive junction connecting an epithelial cell to the basal lamina. Hemidesmosome

C) collection of fibrous intracellular attachment proteins. Plaque

D) create a permeability barrier. Tight junctions

E) button-like points of strong adhesion between two cells. Desmosome

F) hollow cylinders associated with gap junctions. Connexons

G) type of adherens junction connecting cells with the extracellular matrix. focal adhesion

H) intermediate filaments associated with plaques. Tonofilaments

I) collection of adherens junctions particularly associated with epithelial cells.

J) type of adhesive junction containing actin microfilaments. Adherens junctions

K) specialized modifications of the cell membrane in which two cells come together in multicellular organisms. Cell junctions

L) point of cytoplasmic contact between two cells. Gap junction

M) anchors cytoskeleton of one cell with that of a neighboring cell. Adhesive junction

Explanation:

Connexin: is a transmembrane protein that forms the gap junctions, they are also called gap junctions proteins.

Hemidesmosome junctions: these types of junctions are in the epidermis, specifically between the epithelial cells and the basal lamina of the epidermis.

Plaque: they are part of the adherens junctions, they are fibrous proteins that are attached to certain points of the extracellular matrix.

Tight junctions: are junctions between two epithelia, they are very restrictive and do not allow the passage of soluble molecules creating a permeability barrier.

Desmosomes: are very strong cell to cell junctions on the lateral sides of plasma membranes. They are in tissues that are under mechanical stress, such as the cardiac muscle.

Connexons: is a pore made of six connexin proteins in a gap junction. Connexons are the ones that connect two cells in gap junctions.

Focal adhesions: They connect the extracellular matrix with the cell, regulatory signs and mechanical force is transmitted through them.

Tonofilaments: tonofilaments are the ones that are associated with a plaque in adherens junctions, they are in epithelial tissues.

Adherens junctions: are cell to cell junctions where the cytoplasmatic face is connected to the actin cytoskeleton. They appear as spots forming the plaque or as zonula adherens, which are actin bands around the cell.

Cell junctions are protein complexes that connect two cells that are next to each other or a cell with the extracellular matrix. They have a lot of functions, such as pas information from cell to cell, or the exterior, form a barrier, synchronize cells, etc.

Gap junctions: are connections between the cytoplasm of two cells, molecules and, ions pass directly from one cell to the other.

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3 years ago

Any property that describes how a substance reacts with another substance when forming a new substance. The behavior of a substa

forsale [732]

Any property that describes how a substance reacts with another substance when forming a new substance is the Property of Reactivity .

Explanation:

The ability of substance to readily react with other substance to produce new product is called as reactivity.

It describes about different methods used by the reactants to form new product.

Sometimes one single reactant gives rise to two different products as in splitting of water during which the following reaction takes place:

H_2 O →2H_2 + O

On contrary, two substance combines together to give rise to one single product as:

2 Mg + O_2 →2MgO

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3 years ago

Most traditional sources of energy come from the______

madam [21]

Lithosphere because oil, coal, and natural gas are all located in the crust.

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