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Anna71 [15]
3 years ago
5

Which group of animals has existed the longest?

Biology
1 answer:
Hatshy [7]3 years ago
8 0
The answer is B) Perissodactyls
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List two diseases that are spread by insects and caused by protists, and name the protist that causes each disease.
Bad White [126]

Answer:

Malaria is a protist disease spread by mosquitos the protist who causes Malaria is called the Plasmodium parasite. Another disease is sleeping sickness spread by the tsetse fly the protist is caused by Trypanosoma brucei

Explanation:

6 0
3 years ago
Which statement about membranes is TRUE? Most plasma membranes contain more than 70% proteins sterol lipids are common in human
gulaghasi [49]

Answer:

Sterol lipids are common in human cell plasma membranes

Explanation:

Human plasma cell membrane contains sterol lipids and proteins which serves as structural maintainers of the cell.

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3 years ago
A common mechanism of injury for an anterior tibiofibular ligament sprain is When icing an athlete with an ice bag and elastic w
Andrej [43]

Answer:

The correct answer will be

1. Inversion

2. 20-25 minutes

Explanation:

The injuries of the ligaments of the ankle are common among athletes like the anterior tibiofibular ligament sprain (AFTL) or calcaneofibular ligament (CFL) which are caused by the inversion of the flexed foot.

These cases of ankle sprains are treated with the rest and applying ice to the injured area for approximately 20-25 minutes repeated for  3-4 times per day.

Thus, Inversion and 20-25 minutes are the correct answer.

4 0
3 years ago
Questions
Marat540 [252]

The decay of uranium isotopes is used to provide information about the age of Earth.

<h3>Explanation:</h3>

Isotopes of Uranium U-232, U-233 , U-234 , U-235 , U-236 , U-238 are used as fuel in nuclear reactors or as explosives for nuclear weapons. Uranium 238 is not very radioactive and it constitutes for nearly 99.3% of natural uranium on Earth and has the longest lifetime: its period is 4.5 billion years, about the age of Earth.

Use of radiometric dating techniques help in defining the age of substances (natural or man-made) using the known decay rates of radioactive elements. Each element has an  individual decay rate and half life time.

Two Uranium isotopes (U-238 and U-235) are used for radiometric dating. Both the isotopes have different decay rates and half life period. Both are unstable and radioactive. Since two different isotopes produce two different decay clocks (one as a reference to other), it is beneficial in accurately determining the age of samples. The age of earth (rocks or other natural elements) can be easily determined using Uranium isotopes.

4 0
3 years ago
What type of cloud is associated with hail?
Gnesinka [82]
And is B yes answer is B
6 0
3 years ago
Read 2 more answers
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