Biology Middle School

PLEASE HELP! i will give the first person to answer brainliest! Just PLEASE help!

Anyone know the definition of Protozoan?

Answers

Answer 1

Answer:

Protozoa are single-celled eukaryotes

Explanation:

Eukaroytes are organisms whose cells have nuclei

Answer 2

Answer:

Protozoa are very small organisms which often live inside larger animals.

Related Questions

Please look at the picture and answer two boxes

Answers

Answer:

ok i looked      eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeee eeeeeeeeeeeeeeeeeeee eeeeeeeeeeee

write a mini-essay about Balanced & Unbalanced Forces

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Answer:

Forces have a magnitude (strength) and a direction. Forces can be represented as arrows with the length of the arrow representing the magnitude of the force and the head of the arrow pointing in the direction of the force.  Using such arrows, the resulting force (net force) and direction can be determined.

Forces acting on an object can be balanced or unbalanced.

Forces have a magnitude (strength) and a direction. Forces can be represented as arrows with the length of the arrow representing the magnitude of the force and the head of the arrow pointing in the direction of the force. Using such arrows, the resulting force (net force) and direction can be determined. Forces acting on an object can be balanced or unbalanced. Balanced forces will cause no change in the speed of an object.

Balanced forces acting on an object in opposite directions and equal in strength, as shown in the arrows below, do not cause a change in the speed of a moving object.
Objects that are not moving will not start moving if acted on by balanced forces.
For example, in arm wrestling where there is no winner, the force exerted by each person is equal, but they are pushing in opposite directions. The resulting force (net force) is zero. Or, in a tug of war, if there is no movement in the rope, the two teams are exerting equal, but opposite forces that are balanced. Again, the resulting force (net force) is zero. Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving. When two unbalanced forces are exerted in opposite directions, their combined force is equal to the difference between the two forces.
The magnitude and direction of the net force affects the resulting motion
This combined force is exerted in the direction of the larger force
For example, if two students push on opposite sides of a box sitting on the floor, the student on the left pushes with less force (small arrow) on the box than the student on the right side of the box (long arrow).
The resulting action (net force: smaller arrow to the right of the = shows that the box will change its motion in the direction of the greater force as shown below:

Before humans ever ventured into space, we fantasized about visiting—and even living on—other planets. As technology continues to develop, it may one day be possible for humans to call planets other than Earth's home. Space scientists have several possible Earth-like planets and moons insight, but one that is of high interest is Kepler-186f, a planet 500 light-years away. It orbits a star much like the Sun, and it orbits in a habitable zone: it is far enough from the star to allow for the pooling of water (if it is present) on the planet's surface.

Is being in a "habitable zone" enough to say the planet is habitable for human life? What characteristics would an Earth-like planet need to have to support life? What challenges would we face traveling to and colonizing Kepler-186f or other Earth-like planets outside of our solar system? Do you think scientists should spend time looking for Earth-like planets before we have the technology to visit them? Why or why not? PLEASE HELP ME!!! :((

Answers

Answer: yes because A habitable zone (HZ) in astronomy is a region of space where conditions are best for life to form as on Earth. Planets in these areas are the most likely to have extraterrestrial life. The habitable zone may also be called the "life zone", "comfort zone", "green belt" or "Goldilocks zone".

Explanation:

Explain how cell division is linked to cell theory.

Answers

All living things are organism

how would I write out cm before 1 on a metric ruler
ex : 8'4 cm

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In the metric system you multiply by ten so it should be centimeter to basic unit right? So it would be .1 or 0.1
i think it’s 0.1 ..?

Please give the correct answer

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Answer:

D

Explanation:

The answer is D I think :)

Which stage of the cell cycle involves cell growth and DNA replication?

mitosis
cytokinesis
interphase
prophase

Answers

Answer:

interphase aka "c"

Explanation:

During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.

So basically c

Biological control is used to control pests. Unfortunately there are risks involved if the biological control is a new species to the area. What are they?

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they can easily be a risk so for that u need to search it up
they can harm the environment and animals living in it

Need help pls asap question is in the pic.

Answers

i think the answer is c am not sure
C hejsjjshshshshshshshshhs

Which property of minerals is the least reliable for identifying minerals?
hardness
luster
streak
color

Answers

Answer:

color.

Explanation:

Although color is the most obvious of mineral properties it is the least reliable for identification purposes. This is because the color of a mineral can be altered by slight chemical impurities within its crystal structure.

The color of a mineral is the least reliable for identifying minerals. Therefore, option D is correct.

What are the properties of minerals?

A mineral species is identified by two distinct characteristics: its crystal structure and chemical composition. Each mineral has a unique three-dimensional arrangement of the atoms that make up its structure. Its physical characteristics, including cleavage and hardness, are impacted by its regular geometry.

Because they are composed of many elements, minerals have unique qualities. Iron, calcium, magnesium, silicon, carbon, phosphorus, oxygen, and many more naturally occurring elements can be found in minerals. Based on how many electrons each of these native elements have, they have various qualities.

The color of a mineral is the least reliable for identifying minerals. Therefore, option D is correct.

Learn more about minerals, here:

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