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Ivahew [28]
1 year ago
14

Worth 50 points

Biology
1 answer:
Nutka1998 [239]1 year ago
6 0

Given that organisms accumulate contaminants into their bioavailable fractions, we can conclude that the most likely outcome of this pollutant on the oysters is that <u>heavy metals will </u><u>bioaccumulate </u><u>in the oysters.</u>

Heavy metals that are often found in water include:

  • Lead
  • Copper
  • Arsenic
  • Cadmium
  • Manganese

and more.

Though some metals are water-soluble, this does little to lessen the negative impact of their presence in the water. Water is used as an essential resource for all life. Metals in high concentrations, even those soluble in water, have been shown to be <em>fatal </em>to many organisms, including oysters.

Though oysters would suffer to a degree from biomagnification, <u>which is the accumulation of toxins in an organism through the food chain,</u> this will most likely become a serious problem higher up on the food chain, as the oysters are consumed by predators.

The most likely outcome of these pollutants in the water is that the Heavy metals will bioaccumulate in the oysters. This is due to the fact that the oysters will absorb the metals from the water. At high enough concentrations, this will lead to a decrease in the number of oyster offspring, possibly even reducing it to half.

To learn more visit:

brainly.com/question/4450698?referrer=searchResults

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Which of the following is NOT one of the
Dimas [21]

The way that does not successfully classify protists is their size. Thus, the correct option is C.

<h3>What are Protists?</h3>

Protists may be defined as one of the diverse taxonomic groups and particularly a kingdom of eukaryotic organisms that are unicellular and sometimes colonial or less often multicellular and that generally include the protozoans, most algae, and often some fungi.

On the basis of the way that Protists reproduce, they can be subdivided into three types: Sexually reproducing protists, asexually reproducing protists, and conjugation-based.

On the basis of how protists get energy and food, they are again subdivided into three categories.

  • Animal-like protists: Heterotrophs that have the ability to move.
  • Plant-like protists: Autotrophs that have the ability of photosynthesis.
  • Fungi-like protists: Heterotrophs have cells with cell walls.

On the basis of the way that they move, they are subdivided into two types: Motile protists and non-motile protists. They generally move with the help of cilia, flagella, and pseudopodia.

Therefore, the size is not one of the following ways that protists are grouped. Thus, the correct option for this question is C.

To learn more about Protists, refer to the link:

brainly.com/question/2169979

#SPJ1

8 0
1 year ago
In the disease myasthenia gravis, the human body makes-by mistake- antibodies to its own acetylcholine receptor molecules. These
andre [41]

Answer:

Muscle contraction function.

Explanation:

The nerve endings possess synaptic acetylcholine vesicles ready to be released. The action potential depolarizes the presynaptic terminal and increases the concentration of axoplasmic calcium; Acetylcholine molecules are thus released, so that the concentration of the neurotransmitter at postsynaptic (nicotinic) receptors is temporarily increased. This is followed by post-synaptic membrane depolarization, muscle membrane action potential with increased rnioplasmic calcium concentration, and finally muscle contraction. Acetylcholine is hydrolyzed by acetylcholinesterase and resynaptic at the presynaptic level by cholinecetyltransferase. The etiopathogenesis of myasthenia gravis is autoimmune and there are antibodies against acetylcholine receptors that circulate in the blood, as well as a decrease in the number of receptors on the motor plates, that is, it is produced by the postsynaptic blockage of the myoneural plaque, that generates fatigue and localized or generalized muscle weakness that is characterized by the worsening of the contractile force of the muscle.

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2 years ago
for years, scientist have known that the major components of the plasma membrane were lipids and proteins. which model best desc
fredd [130]

Answer:

Explanation:

Look i am only 11 maybe you should sometimes ask your mom instead of strangers you do not know who be out here answering your question it could be a syco like me.

sincerly your scyco

8 0
2 years ago
Which two things cause the orbits of planets to be nearly circular
Alja [10]

Answer: Gravity and inertia

Explanation:

5 0
3 years ago
Below is a segment of a strand of normal DNA:
Ede4ka [16]
This would be an example of:
C) an insertion mutation.

Notice how the sequence contains the same letters as before, only an A is added to the beginning. Adding extra nucleotides is an example of an insertion mutation, a type of frame-shift also, because the reading frame will be thrown off downstream.
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