PHYSICS HIGH SCHOOL

The amoeba is a protozoan that moves with _____. flagella
cilia
pseudopodia
none of the above

Answers

Answer 1
Answer:

The amoeba is a protozoan that moves with the pseudopodia. Pseudopodia is known as the false foot. Thus, the correct option is C.

What is Pseudopodia?

A pseudopod or pseudopodia is a temporary arm-like projection of a eukaryotic cell membrane such as algae that is emerged in the direction of movement of the organism. These are filled with cytoplasm. Pseudopodia primarily consist of the actin filaments and may also contain microtubules and other intermediate filaments.

Pseudopodia are responsible for the amoeboid movement, which includes sliding or crawling-like form of locomotion. This motion is visible in amoeba. The formation of cytoplasmic projections, or pseudopodia, on the cell surface, pulling the cell along in the direction of food, is a characteristic of the microscopic unicellular protozoans known as amoeba.

Therefore, the correct option is C.

Learn more about Amoeba here:

brainly.com/question/28367813

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Answer 2
Answer: The amoeba is a protozoan that moves with pseudopodia.

Answer: Pseudopodia

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Using the value of atmospheric pressure at sea level, 1 × 105 Pa, estimate the total mass of the earth's atmosphere above a 5-m2 area.

Answers

Answer:

5×10^4 kg

Explanation:

pressure= force/Area

area= 5m^2

pressure = 1×10^5 Pa

1×10^5=mg/5 (weight will be the force)

5×10^5=m×10 (gravitational field strength of the earth)

5×10^5×10^-1 =m

mass=5×10^4 kg!

hope this helps!

What evidence did Alfred Wegener use to support his theory of continental drift?

Answers

Explanation:

Alfred Wegener was a meteorologist and geologist. He was inspired by a map of continents to start the journey of explaining Earth's geological history. He gave the theory of continental drift which says that the continents of Earth have moved relative to each other over time. He used following evidences to support his theory:

1. The facing side of South America's and Africa's shoreline interlocks perfectly. Which implies they must have been joined together in history.

2. Fossil of same type of reptiles found on different continents separated by huge oceans.

3. Matching the rock pieces on either side of the Atlantic oceans.

Answer: The correct answer is: coastline fits between different continents, similar rocks and fossils on different continents

Explanation: I took the test

The _________ ______ has the final say in both criminal and civil cases.

Answers

judge/court has the final say

What does trajectory mean?

Answers

Trajectory means the path that something follows.

It's almost always used to describe things that are dropped, thrown, or shot,
like the trajectory of baseballs, golf balls, and canon balls, or other things moving
under the influence of gravity, like comets, asteroids, and planets.  But it doesn't
have to be the path of something sailing overhead from one place to another.
You'll also hear about a person's 'trajectory through life'.
A trajectory is the path that a moving object follows through space as a function of time. The object might be a projectile or a satellite

a motorcycle accelerates from 15 m/s to 20 m/s over a distance of 50 meters. what is its average acceleration?

Answers

For this, you need the v-squared equation, which is v(final)² = v(initial)² + 2aΔxThe averate acceleration is thus a = (v(final)² - v(initial)²) / 2Δx = (20² - 15²) / 2(50) = 175 / 100 = 1.75 m/s²So the average acceleration is 1.75 m/s²

A large sphere has a mass of 175 kg and is suspended by a chain from the ceiling. The mass of the chain is 12.0 kg. What is the tension in the chain?1830, N1610, N1720, N1940 N.

Answers


Each point in the chain supports the weight of all the mass below it.

At the bottom end of the chain, the weight is  (175 x 9.8) = 1,715 N .
At the top of the chain, the weight is  (175 + 12) x (9.8) = 1,833 N .

The tension in the chain varies linearly from  1,715N  at the bottom
to  1,833N  at the top.
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