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IRISSAK [1]
3 years ago
13

Which is a need? A.shelter B.gum C.chocolate bar D.toys

Biology
1 answer:
Degger [83]3 years ago
8 0

Answer:

A-Shelter, the others are for enjoyment while shelter takes care of your physical state

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Draw a trophic pyramid using the animals in the Chesapeake Bat ecosystem. Include the percentage of energy at each level. In you
ArbitrLikvidat [17]

Answer:

four trophic levels

Explanation:

All food chains and webs have at least two or three tropic levels. Generally, there are a maximum of four tropic levels. Many consumers feed at more than one tropic level.

4 0
3 years ago
Most of the fatty acids in cells contain an even number of carbons with _____ carbon atoms per molecule.
Rom4ik [11]

Most of the fatty acids in cells contain an even number of carbons with 16 to 18 carbon atoms per molecule.

<h3>What are fatty acids?</h3>

Fatty acids are biomolecules which consist of a long non-polar hydrocarbon chain and a polar carboxylic acid head.

Fatty acid are found combined with glycerol molecules to form fats found in animals.

The oxidation of fatty acids produces large amount of energy for the body.

In conclusion. fatty acids are lipid molecules found in living organism that serve as energy stores.

Learn more about fatty acids at: brainly.com/question/17352723

#SPJ1

3 0
1 year ago
Clathrin coated vesicles bud from eukaryotic plasma membrane fragments when adaptor proteins, clathrin and dynamin-GTP are added
KonstantinChe [14]

Answer: Clathrin cages assemble, vesicles form but cannot be pinched of but no disassembly occurs so the vesicles remain coated in clathrin.

Explanation:

Endocytosis is a cellular mechanism that allows the introduction of extracellular material into the cell. Clathrin-coated vesicles act to incorporate different molecules that are recognized by specific proteins located in the clathrin-coated pits. Upon invagination of a portion of the plasma membrane, the material is transported to its final intracellular destination.

<u>Clathrin is a protein that forms the lining of cell membrane microcavities where various receptors are located. Once a particle is recognized by the receptors, invagination of the plasma membrane occurs, which then fuses to form an endocellular vesicle.</u> When vesicle budding occurs, the vesicle is detached from its attachment to the membrane with the help of a GTPase protein called dynamin. Then, the vesicle is freed from clathrin by the action of a type of ATP-ase called Hsp70-ATP and docks to late endosomes that are immediate precursors of lysosomes, fusing the membranes of both. The fission of the clathrin-coated vesicle is controlled by the GTPase dynamin and it has been proposed that dynamin acts by generating the necessary force to strangle the "neck" and cleave the vesicles from the membrane. So they are mainly involved in the cleavage of newly formed vesicles from the membrane of one cell compartment, their orientation, and their fusion with another compartment. Also, without the dynamin, vesicles are not freed from clathrin.

<u>In the absence of dynamin, vesicles are formed but the membrane fusion or pinching off will not occur. Then, invaginated coated pits will be found.</u>

7 0
2 years ago
Illustrate how body cavities distinguish branches of development of animals with bilateral symmetry.​
Katarina [22]

Answer: no body cavity—acoelomates; body cavity not completely lined with mesoderm—pseudocoelomates; body cavity completely lined with mesoderm—coelomates

7 0
3 years ago
If you set up an experiment and the results do not support your hypothesis, what should you conclude?
makvit [3.9K]
I think it would be D. because your hypothesis wasn't correct.
5 0
3 years ago
Read 2 more answers
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