Biology Middle School

1
The National Aeronautics and Space Administration (NASA) has designed many robots to help astronauts explore space. Some robots drive around like cars, some are just large arms, and some look like humans. All of these robots can accomplish tasks in space that are too difficult or dangerous for astronauts to do alone.

2

The most famous NASA robots are called the Mars rovers. According to NASA, the wheeled rovers are part of the Mars Exploration Program, “a long-term effort of robotic exploration of the red planet.” The newest rover, Curiosity, landed on Mars in August 2012. The size of a small car, Curiosity carries advanced equipment to analyze the soil and air on Mars. Curiosity has made many exciting discoveries about the planet's environment. Most importantly, it discovered that Mars contains the right ingredients to support life, including carbon, oxygen, and water. Curiosity has also found that astronauts on Mars would be exposed to dangerous levels of radiation. This discovery will help NASA protect its astronauts when they one day travel to Mars.

3

NASA is also building other robots. For example, the Robonaut2 looks like the upper half of a human. The human hand is a very complex and useful tool. It might seem easy for a person to press a button, grasp and lift an object, or turn a knob, but these tasks are very hard for a robot. However, a robot that could perform these tasks would be very useful to astronauts. The Robonaut2 is now being tested at the International Space Station (ISS). Eventually, NASA wants to add legs or wheels to the Robonaut2, which would allow it to move around outside the ISS.

4

Another robot on the ISS is a massive arm called Canadarm2. It can do repair work and transport objects too big for humans to move. Canadarm2 has even caught the Hubble telescope to allow astronauts to repair it. As technology develops, NASA will increasingly rely on robots. They will guide astronauts in new places, give them medical care, and do dangerous work for them. With their special equipment and considerable strength, robots can help humans explore new worlds.


Which sentence BEST explains how the author develops the central idea?

A.
He describes three different NASA robots and the work they do to support NASA.

B.
He explains how the Mars rovers are capable of important tasks like analyzing soil and air.

C.
He describes how NASA robots have human features that can do the work humans did in the past.

D.
He explains NASA's long term goals to incorporate more robotics in space exploration.






Which sentence BEST explains how the author develops the central idea?

A.
He describes three different NASA robots and the work they do to support NASA.

B.
He explains how the Mars rovers are capable of important tasks like analyzing soil and air.

C.
He describes how NASA robots have human features that can do the work humans did in the past.

D.
He explains NASA's long term goals to incorporate more robotics in space exploration.

Answers

Answer 1

Answer:

D,B,

Explanation:

Related Questions

What is the origin of the energy that all organisms need to carry out life functions?
A. food
B. producers
C. plants
D. the Sun

Answers

D the sun because it is the main leading producer for all living organisms

Answer:

D. The  Sun

Explanation:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part.  This process begins the flow of energy through almost all food webs. Food is sunshine stored in chemical form. Organisms use the stored energy in food to fuel all living processes.

help me w this please

Answers

It’s b
I don’t know the explanation I just did this and we went over the answers soooo
The answer of your question is b

Describe the process of decomposition during hurricane sandy. no links

Answers

The decomposition is a process that occurs when the organisms are dying. The process stars shorty after the death of the organism. The decomposition occurs  by abiotic and biotic processes, with the abiotic happening through hydrolyses, while the biotic happening because of the microorganisms. This process is part of the nutrient cycle, and it is crucial for the recycling of the finite matter. The decomposition is also what has enabled the formation of the soils, as the soils are a mixture of sediments and decomposed biomass.

Red and white blood cells are produced inside the __________ of bones. This is an interaction between the skeletal, circulatory, and immune systems.

A. Marrow
B. Spongy Bone
C. Compact Bone
D. Liver

Answers

i believe the answer is A
A marrow
this is correct because red and white blood cells deal with bone marrow

Describe the process of decomposition. (hurricane sandy 2012)

Answers

The decomposition is a process that occurs when the organisms are dying. The process stars shorty after the death of the organism. The decomposition occurs by abiotic and biotic processes, with the abiotic happening through hydrolyses, while the biotic happening because of the microorganisms. This process is part of the nutrient cycle, and it is crucial for the recycling of the finite matter. The decomposition is also what has enabled the formation of the soils, as the soils are a mixture of sediments and decomposed biomass.

Please answer this question for branliest tysm

Answers

Answer:

D.

Explanation:

Nutrients and energy can help you with memory, health, and many other things.

D

They take nutrients and sometimes store energy

What is Hemoglobin? Where is it found? What part does it play in the color of blood?

Answers

Answer:

Hemoglobin is protein in red blood cells that is made up of four chains.Each of these chains contains a compound known as heme, which in turn contains iron, which is what transports oxygen in the bloodstream.

PLEASE HELP ME ASAP!!! I AM GIVEING 10 EXTRA POINTS AND WILL MARK BRAINLYIES TO THE BEST ANSWER.
Think about the climate that you live in. How does your climate relate to the air and ocean currents?

Answers

Answer: Ocean currents can affect the climate of nearby land. Cold ocean currents make nearby land colder and warm ocean currents make nearby land warmer. Places near the ocean experience moderate temperatures year round due to the fact that water has a high specific heat, meaning that it cools and warms slowly. Places further inland have a higher temperature difference between seasons because land has a low specific heat which means that it cools and warms quickly. Ocean currents influence rainfall patterns. Warm, moist air associated with warm ocean currents increase precipitation.

bye im too lazy for this

Answer:

If you are closer to a ocean current, you can experience moderate temperatures year round because the water has a  specific temperature. his would make the land near the ocean take longer to heat up and cool down. Ocean currents affect the climate of the land near it. They move warm and cold water currents around the globe. Cold ocean currents make nearby land colder and warm ocean currents make nearby land warmer.  Places further from the coast have a higher temperature difference between seasons because land has a low specific heat which means that it cools and warms quickly. Of course weather you are closer or further also changes things. If you are closer to the equator you have higher temperatures, and the further away you get, the colder it gets. Ocean currents also influence rainfall patterns. Perspiration normally happens near the ocean, so the air will be humid and moist due to the water in the air going up to make clouds. If you are near a warm air current, you will get more warm ail on top of that. However, if you are closer to a cold air current it will be colder. If you are close to both, you are likely to experience tornadoes and hurricanes due to the warm and cold air currents coming together.

Explanation:

Explain how the behavior of solitary bees and social bees increases their chances of reproductive success.

Answers

Answer:

Working alone, the female collects building materials for the nests and food for the larvae, then builds an individual cell for each egg. She lays each of her 20-30 eggs on top of a ball of pollen stuck together with nectar. She builds a partition wall, then repeats the process until the tube or hole is full.

Explanation:

Match each sound wave property with its observable effect.

*Answers may be used more than once.
Properties:
amplitude
wavelength
frequency
Observable Effects:
volume
pitch

Answers

Frequency- pitch
Wave length- pitch
Amplitude- pitch

Which type of niche applies to the clownfish?
A. broad niche
B. medium niche
C. common niche
D. narrow niche

Answers

Answer:

Explanation:

broad niche

answer: medium niche im pretty shore

The test: To understand if the ACTN3 protein affects running ability, researchers conducted a test. They recruited a group of competitive runners and measured the level of ACTN3 protein molecules each runner had in their bodies. Then, they had the runners participate in a sprint (a short-distance run). During the test, the runners sprinted as fast as they could for 100 meters.
Evidence: Scientists found that the runners who sprinted the fastest had the highest amount of ACTN3 protein molecules in their bodies.

Do you think that this evidence shows that the ACTN3 protein determines running ability? Explain your ideas using the words protein, trait, and feature in your response.

Answers

Answer:

The ACTN3 gene encodes the alpha-actinin-3 protein which is present in fast-twitch muscle fibers. ... Although having one or two variant forms of the ACTN3 gene does not have any harmful effect, an individual's ACTN3 genotype does affect their athletic ability.

hope that helped

Explanation:

Answer:

The ACTN3 gene encodes the alpha-actinin-3 protein which is present in fast-twitch muscle fibers. ... Although having one or two variant forms of the ACTN3 gene does not have any harmful effect, an individual's ACTN3 genotype does affect their athletic ability.

What is one-way water moves through the nonliving parts of an ecosystem during the water cycle?
A. Sweating
B. Evaporation
C. Photosynthesis
D. Transpiration

Answers

C. Evaporation

hope this helps :)
Your answer would be B

Which of the following organisms will be connected to primary consumers in a food web?
herbivores
producers
phytoplankton
plants

Answers

Answer:

The Answer is Herbivores

Explanation:

Herbivores are considered Primary Consumers because the organisms that eat the producers are the primary consumers. They tend to be small in size and there are many of them.

the answer is herbavores

What two Units do Astronomers use to calculate Distance to Stars

Answers

Answer:

astronomical unit (AU) and light years

Explanation:

True or False: Limiting factors can help within an ecosystem by preventing populations from becoming too large.

Answers

Answer:

TRUE

Explanation:

Answer:

True.

Explanation:

( I hope this helps you. )

Scientists are concerned about the overuse of antibiotics because it could lead to certain diseases becoming ________________ to these drugs.

A. Vulnerable
B. Resistant
C. Larger
D. Vaccine

Answers

Answer:

Resistant

Explanation:

They wouldn't be worried about it being vulnerable to the drugs because that is what they want. For the disease to be affected successfully.

B. Resistant
If you overuse a medication the disease will become resistant causing it to not take effect to the drugs.

Which type of weathering do you think is more rapid in your area? Justify your answer. PLEASE HELP MY MOM IS MAAAAD AND IM DOING OVERDUE WORK JUST PUT WHATEVER PLEEEEEAAAAASSSSSEEEE

Answers

Answer:

chemical weathering

In warmer climates, chemical weathering is more rapid because the chemical reactions that dissolve rocks and minerals are accelerated by warm temperatures.

Answer:

physical weathering

Explanation:

I live in a very cold environments and physical weathering is most rapid in  cold places  

Evidence: Scientists found that the runners who sprinted the fastest had the highest amount of ACTN3 protein molecules in their bodies.
Do you think that this evidence shows that the ACTN3 protein determines running ability? Explain your ideas using the words protein, trait, and feature in your response.

Answers

Answer:

yes

Explanation:

help please, parathyroid glands produce hormones that are essential to the proper function of which system

Answers

Parathyroid glands are important for controlling calcium levels and keeping your bones strong so D

Edge notes
I took notes on the climate section so hope it helps

Answers

Thanks for the points and nice profile pic

can i get some help with these 3 questions .

Answers

Answer:

1. D. Burning Coal and Natural Gas

2. D. Larger; Louder

3. D. It has a lower pitch and is quieter than the first note.

Explanation:

Not 100% certain of number 3, but I'm pretty certain it is correct. 1 and 2 are for sure correct.

“Coronavirus Is Mutating”, what could be the reason for it? (Research) and tell your answer in your own simple words

Answers

Answer:

Explanation:

Coronavirus is mutating because as more people are getting the virus, that gives that virus a change to mutate and form a different strand. When a virus hijacks a person cells, it causes that cell to start producing the DNA of the virus, but because human cells where not made to produce the DNA of a virus, mistakes happen, thus slightly changing the DNA of the virus which can then cause a new strand of the virus to appear.  

Help please? Im stuck.
Just say A, B, C, or D. Thanks!

Answers

A is the answer trust me I used to be a teacher

anyone could help it would be great

Answers

Answer:

water and soil

Explanation:

water and soil is your answer

Can someone help me with this question ill give you brainliest

Answers

B) gravitational attraction

Answer:

I believe it is C) There is a magnetic attraction between the Earth and the Moon.

Explanation:

Magnetic and gravitational attraction are totally 2 different forces.

If I just gave you the wrong answer, I'm so sorry. :(

Which of the following sets of equipment can be used to analyze the effects of human activity on a watershed?

A) Water testing kit, triple beam balance
B) Water testing kit, beaker, hotplate
C) Hotplate, beaker, graduated cylinder
D) Water testing kit, hand lens, notebook

Answers

Answer:

the answer is d

Explanation:

i’m not sure but i believe it is A

PLZ HELP ME!

What is the best description of chromosomes by the end of anaphase II of meiosis?

1.The chromosomes coil and become more compact.


2.The chromosomes split apart at the centromere.


3.The chromosomes reach opposite sides of the cell, incorporating into two haploid nuclei.


4.The chromosomes line up in the middle of the cell.

Answers

Answer:

I believe it is 2. the chromosomes split apart at the centromere

answer : number 2
hope this helps you out !

PLZZ

Which is NOT a characteristic of a vertebrate?

A-have blood

B-have exoskeleton

C-have a nervous system

D-have backbone

E-have protective skin covering

Answers

The answer is B to your question
Answer is B.............

PLEASE HELP WILL GIVE BRAINLIEST!! Please please only answer if you know or can help!! I need help know if what i already put is correct or how i can fix it and also the answer to question E. THANK YOU!

Answers

Answer:

U cant answer E if others are wrong or unknown

Explanation:

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