Phosphorescence is a phenomenon associated with which algal division

Answers

Answer 1

Answer: Phosphorescenceis related to fluorescence in that the phosphorescent does not re-emit theradiation it absorbs. It is a process in which the absorbed energy of asubstance is released relatively slowly inn the form of light. One example ofthis is the glow in the dark stick. The stick will glow even brighter if it isexposed in a light material. Another example that is a phosphorescentassociated in algal division are the Pyrocystis fusiformis. They are dinoflagellatesand can glow brighter at lighter conditions

Answer 2

Answer:

Answer:

Dinoflagellates

Explanation:

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Traits of vertebrates includea. an endoskeleton made of bone or cartilage. b. an excretory system that includes a pair of kidneys. c. a system of muscles that enable movement. d. all of the above
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Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?a. most living organisms can survive in environments with several different temperature and salinity levels
b. both aquatic plants and animals depend on dissolved oxygen for respiration
c. abiotic factors that impact an aquatic ecosystem include temperature, salinity, flow, and dissolved oxygen in the water
d. abiotic factors of an aquatic ecosystem determine what kind of life can exist in that environment

Answers

The answer is a. most living organisms can survive in environments with several different temperature and salinity levels.

Aquatic plants and animals depend on dissolved oxygen for respiration. The other abiotic factors that impact their life in an aquatic ecosystem are temperature, salinity, and flow and they determine the quality of their life. It is not true that most living organisms can survive in environments with several different temperature and salinity levels. On the contrary, a few species can live in environments with several different temperature and salinity levels, for example, some bacteria. The most organism can survive in a specific range of abiotic factors.

Answer:

most living organisms can survive in environments with several different temperature and salinity levels

Explanation:

An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of 30 year old men and women who were at rest were measured. On day one, each person was given a caffeinated soda. On day two, each person was given caffeine-free soda. One hour after drinking the soda, their pulse rates were measured. The participants in the experiment were all the same age and they were all given the same amount of soda. The dependent variable in this experiment is the (HINT: ______ depends on ______).

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Final answer:

In the experiment, the dependent variable is the pulse rate of the participants, which is expected to change based on the intake of caffeinated or caffeine-free soda.

Explanation:

In this experiment, the dependent variable is the pulse rate of the participants. This is what the researchers are measuring and observing, and it is expected to change in reaction to the manipulated variables (or independent variables).

In this case, the independent variable is the type of soda consumed: caffeinated and caffeine-free. The hypothesis being tested is that the intake of caffeine (via soda) leads to a higher pulse rate. Therefore, the pulse rate 'depends' on whether or not the soda consumed contained caffeine.

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The dependent variable in this experiment is the "Pulse rate" depends on "Amount of caffeine in soda"

Hope this helps!

Do you think it is wrong to traffic animals?

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of course it’s wrong

All of the following are positive aspects of PACs EXCEPT?A. Members of PACs have access to candidates and parties.

B. PACs allow their members to support a range of candidates with a single contribution.

C. Candidates receive contributions from so many PACs that the effect of any single PAC is diluted.

D. PACs allow organizations to form a close connection to the legislators they support.

Answers

The correct answer is option C, Candidates receive contributions from so many PACs that the effect of any single PAC is diluted.

Reason -

Different parties that contribute to a certain candidate assumes to at least have a recognition to their contribution but since there are several donors (big or small), usually the donors with small amount of donation get neglected and the effect of their contribution is felt diluted. This seems to generate a negative aspiration in the donor.

I think the answer is C

The Florida Everglades are one of the most diverse ecosystems in the United States and are home to many species of birds, reptiles, amphibians, and fish. Recently, scientists have investigated and determined that the population of pythons, which are from Asia, has increased greatly. What question is least likely to be asked based on these results?

Answers

This is recurring question. Since you didn't provide the choices I'll provide it including the correct answers based on the same question posted here before.

Options:
Are the pythons a new species?How can the python population be controlled?How quickly are pythons reproducing in the Everglades?How are the pythons affecting other animal populations?

The answer is "Are pythons a new species?"The Florida everglade is diverse in ecosystem, therefore, its obvious to have pythons in such an ecosystem.

Actin and myosin, found mostly in muscles cells, are made up of which type of macromolecule?Nucleotides
Proteins
Lipids

Answers

Answer: Proteins

Actin belongs to a family of globular multifunctional protein and myosin is a belongs a family of motor proteins. Both actin and myosin combines to form microfilaments. These are found in the eukaryotic cells. In humans and animals the combination of actin and myosin is responsible for contraction and relaxation of muscles in the presence of ATP.

Final answer:

Actin and myosin, which are primarily found in muscle cells, are macromolecules made up of proteins. These proteins are critical in muscle movement and function.

Explanation:

Actin and myosin are made up of proteins. Proteins are one of the macromolecules vital for building and repairing tissue. In the context of muscle cells, actin and myosin play a pivotal role. They interact to cause muscle contraction, a process vital for movement. Actin is a thin filament while myosin is a thicker one, and they slide past each other to cause the contraction of the muscle. Therefore, proteins have a substantial role in muscle movement and function.

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The events that lead to genetic drift are _______. a. always natural disastersb. random c. predictable d. related to human activities