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Stella [2.4K]
3 years ago
10

What is the difference between food chains and food webs?

Biology
2 answers:
Gwar [14]3 years ago
7 0
It should be the second option: food chains show a single path of energy in an ecosystem, and food webs show all the overlapping food chains in that ecosystem. 
slamgirl [31]3 years ago
3 0
I believe the answer would be B. A food chain would show the direct path, but a food web would show all of the possible options? I hope that makes sense... 
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The ______ chambers of the vertebrate heart are called atria. lower upper middle none of the above
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Upper. Hope this helped!
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2 years ago
What are the roles of the axon and dendrite?​
erma4kov [3.2K]

The axon, or nerve fiber, is an extension of the neuron that drives the electrical signal from the cell body to the synaptic zones. Along the axon, this signal consists of action potentials.

The other extensions of the neuron are the dendrites that lead the signal from the synapses to the cell body (to be then driven to the axon). The neurons most often have a single axon and several dendrites (the influx can come from several directions, or several dendrites, but always converge towards the axon).

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2 years ago
Habitat fragmentation is<br> caused by
liraira [26]

Answer: human activity

Explanation:

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2 years ago
In cats, the gene for Calico (multicolored) cats is an x-linked trait that is
hichkok12 [17]

Answer:

Considering the <u>whole progeny</u> (100%), there will be

  • 25% Black male kittens, XBY
  • 0% Calico Male kittens
  • 25% Calico female kittens, XBXR

Explanation:

<u>Available data:</u>

  • The gene for Calico (multicolored) cats is an x-linked trait and codominant
  • Calico Females receive a "B" and an "R" gene, and have black and orange splotches on white coats. Their genotype is XBXR.
  • Males can only be black or orange, but never calico. Their genotype is XBY and XRY

Cross: a female calico cat with a black male

Parentals)   XBXR    x    XBY

Gametes)  XB  XR       XB   Y

Punnett square)    XB        XR

                   XB   XBXB   XBXR

                    Y      XBY      XRY  

F1) Among the whole progeny:

  •     2/4 = 50%  will be black (female XBXB and male XBY)
  •     1/4  = 25% will be Calico (female XBXR)
  •     1/4  = 25% will be Orange (male XRY)  

   Among females:

  •    1/2 = 50% of females will be black, XBXB
  •    1/2 = 50% of females will be Calico, XBXR

   Among males:

  •    1/2 = 50% of males will be black, XBY
  •    1/2 = 50% of males will be orange, XRY        
7 0
2 years ago
What is the general term for the biochemical makeup of the antigens of the rh system?
Lynna [10]

Protein is the general term for the biochemical makeup of the antigens of the rh system.

<h3>Protein </h3>

Proteins are substantial biomolecules and macromolecules made up of one or more extended chains of amino acid residues. Among the many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, responding to external stimuli, giving cells and organisms structure, and transporting substances. Proteins differ from one another principally in the order of their amino acids, which is determined by the nucleotide sequence of their genes. This causes proteins to fold into a certain 3D structure, which controls their activity. The term "polypeptide" refers to an ordered chain of amino acid residues. One or more lengthy polypeptides must be present in a protein.

Learn more about Protein here:

brainly.com/question/17095120

#SPJ4

3 0
1 year ago
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