Biology Middle School


_____ travel away from the
heart and carry oxygen-
rich blood to the body.
A. Arteries
B. Veins
C. Bones
D. Nerves

Answers

Answer 1

Answer:

Arteries

Explanation:

Arteries carry out blood from the heart to other organs and needed tissues

Veins bring back blood to the heart to reuse

pls mark brainliest

Answer 2
A. Arteries
They carry blood from heart

Related Questions

need help. please help as quickly as possible

Answers

The answer is c i think i’m not completely sure but i think it is
i'm pretty sure the answer is C

Solve the Venn Diagram please

Answers

nervous system - brain

respiratory - lungs

circulatory - heart

circulatory and respiratory - supplies blood w oxygen

nervous and circulatory - regulates other systems

nervous and respiratory - ^^^^^^^^^
maybe the other person is right but idrk

Which action best demonstrates the transformation of mechanical energy to heat energy?

digesting a meal

burning a candle

rubbing hands vigorously

melting a piece of ice in sunlight

Answers

Answer:

rubbing hands vigorously

Explanation:

you can try it your self right now you know like when your outside playing with snow?and you rub your hands?it makes heat.thats is my explantion:)

!!!PLEASE HELP THIS IS THE QUESTION!!!
Briefly describe the phases of cell division

Answers

Answer:

Prophase: Chromosomes become visible as paired chromatids and the nuclear envelope disappears

Metaphase: Sister chromatids are aligned in the middle

Anaphase: Chromatids are split apart and move toward opposite ends.

Telophase: Reverse of prophase and mitosis ends.

Explanation:

More: (If the answer was too breif)

Prophase

• Chromatin condenses into

chromosomes

• Appear as sister chromatids

• Nucleoli disappear

• Mitotic spindle begins to form

• Centrosomes begin to move to opposite ends

• Nuclear envelope begins to breakdown or fragment

Metaphase:

• Centrosomes at opposite ends and mitotic spindle

fully formed

• Sister chromatids (chromosomes) align across

the middle and spidle are attached to both sides

Anaphase:

• Sister chromatids (chromosomes) are split apart and move away toward opposite ends

• Cytokinesis begins during the later stages of anaphase

• Cleavage furrow develops when cytokinesis begins

Telophase:

• Chromosomes become less condensed

• Spindle disappears

• Nuclear envelope forms

• Mitosis ends

• Two daughter nuclei have formed

• Cytokinesis continues

• Usually finishes after telophase

heyyy can someone pleasee fill in the blankss

Answers

Answer:

the moon is one-fourth the size in earth diameter (write fraction in the blank.) the distance from the moon to the earth is  385,000  earth diameters. one of the limitations of this model is that it does not describe the movement of the earth and the moon in each of their orbits. complete the sentences below to add that information to the model it takes 27 days to orbit around the earth. the moon orbits earth in a  Circle

hi hi hi!!! i’ll lay this out so it’s easier to read! school can be so stressful and i hope your doing okay!

answer 1: 1/4
answer 2: 30
answer 3: about 27 days
answer 4: it’s orbiting in a circle... prograde direction!

i hope that was easy on the eyes to read, feel free to message me for any more explanation or clarification! ♡

Kenji must conduct a scientific investigation for a science project. Which step should Kenji complete first?

Answers

Answer:

Kenji must conduct a scientific investigation for a science project. Which step should Kenji complete first?

Develop a testable question based on research or prior knowledge.

Explanation:

scientific method

Kenji must pick what her science project should be about first

Continental crust is composed of
A. metamorphic rock
B. igneous extrusive rock
C. sedimentary rock
D. igneous intrusive rock
PLEASE HELP 15 POINTS

Answers

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C. Sedimentary Rocks

this is worth 30 points, help is much appreciated!

Answers

Answer:

A

He has to gather information to present to have a good graph presentation

Then,he will be able to get good remarks

Hope this help!

The answer to this has to be A

What is eutrophication

Answers

Answer:

Eutrophication, dystrophication or hypertrophication, is when a body of water becomes overly enriched with minerals and nutrients which induce excessive growth of algae. This process may result in oxygen depletion of the water body after the bacterial degradation of the algae.

Explanation:

hope this helps junior

Plz help me answer these questions

Answers

Answer: It replicates in the mitosis phase

srry if im wrong i looked in my science text book

Explanation:

I need help. please quickly answer if possible

Answers

Answer:

what do you need help with I might be able to help.

Explanation:

What do you need help with? I might be able to help you

Explain why different mating systems exist.​

Answers

Answer:

.Mating systems are important to understand because they reflect the result of natural selection on mate choice, and ultimately on strategies for maximizing individual reproductive success

Explanation:

this is science for periodic table..please help

Answers

Answer:

strontium

Explanation:

because it is in the alkaline earth metals section

First one on the right

Ok, I have one more question for the day and this is it. I'm so close to passing but I missed this question the last 2 times. Please help!!

Answers

Answer: B
Explanation:
the answer is B hope this helps :p

Which layer of Earth’s mantle is the hottest?

Asthenosphere
Atmosphere (not a part of mantle)
Lithosphere
Mesosphere
looks who's back with more questions- it's user catdogbarkbark

Answers

asthenosphere
:)))rr i m
Lithosphere I think sorry if I’m wrong good luck

PLEASE HELP ME !!!



Which statements are patterns in the fossil record?

(Select all that apply.)


Earth’s climate has changed between hot and cold over time.

The number of organisms living on Earth shows a slow and steady increase.

The gas ratios in the atmosphere have changed over time.

Fossils belonging to the same animals are seen only on connected continents, such as North and South America.

Answers

all of the above (needs to be twenty characters)
I think it’s A and B I could be wrong soo sorry good luck!!

Please answer! Biology stuff...

Answers

Answer:

make me brainest

Explanation:

the heart , blood, blood vessels form the circulatory system

HEELLPPP PWEASEEEEEE

Answers

I think it’s the second one on the left. Not completely positive but I think so!
It’s the second one!!!

Help Please, Images Attached.
Do not use for points, actually answer !

Answers

The mitochondria is the powerhouse of the cell

mitochondria (power of the cell house)

hope it somewhat helped :)

What are Potassium,Lithum & Sodium are they solids,liquid, or gases.

Answers

Yes I think they are all examples of solids I hope this helps you

Answer:

Solids

Explanation:

They are all solids

PLEASE HELP OUT !!

Which options describe patterns found in the fossil record?
(Select all that apply.)

Earth’s species have remained constant throughout time.
Links exist connecting the lineage of different species.
Most of the species that have ever existed on Earth are still alive today.
Mass extinction events occur periodically throughout time.

Answers

First and last is the answer
I think it’s the second one , and the last one !! Hope that helped ,,, if so mark brainliest please !

Which variables make a volcano such as Popocatépetl more “dangerous” than others?
1. frequent eruptions
2. location on a plate boundary
3. location near human settlements
4. super hot magma reaching surface
(A) 1 and 2
(B) 1 and 3
(C) 2 and 4
(D) 3 and 4

Answers

Answer:

I think it's B not sure though check in Google or read the book

Popocatepal is dangerous because it can kill or injure many civilians, and the lava is extremely hot. So the answer is D.

1. What energy sources and processes of energy drive the global circulation of water in the oceans?

Answers

Answer:

I really don't know I'm sorry dude but I needs the points

Answer:

The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.

Explanation:

Provide two ways the fossil record affirms the truth of Scripture. *

Answers

if the purse fit in to the thingy

Two students conduct the same experiment, but they get different results. What should the students do next? A. The students should check their procedure and tools for sources of error. B. Both students should throw out their data and start over. C. The students should compare data with other students and then use the data from the student who was closest to the rest of the class. D. The students should find the average of each data set and each report the average data.

Answers

Answer:

D is the answer

Explanation:

hope it helps

Hey there!

Let's solve your problem:

The answer is: A

If two students do the same experiment, but get different results, they should not throw it away. It may be a phenomenon and they both got different results. They should not compare to the rest of the class either. Finding the average of the data would not help either. The answer is A

Carbon has an atomic number of 6. What can you conclude about carbon from this fact?
A It has six protons. incorrect answer
B It has six neutrons. incorrect answer
C It's in group 6. incorrect answer
D It's in period 6. incorrect answer

Answers

Answer:

It has 6 protons!

Explanation:

Atomic number=Protons

Can I get Brainliest?

it has 6 protons
the atomic number (6) is how many protons it hasn't

Please help The question is in the picture linked to this question Thank you also it's about science

Answers

Plants use energy from sunlight to turn water and carbon dioxide into an energy-rich sugar called glucose which is then called photosynthesis and then photosynthesis takes place inside capsules in the leaf cells, called chloroplast.
Plants use energy form the sun there fore is plants

Deforestation is a source of anthropogenic, or human caused carbon dioxide emissions because cannot consume carbon dioxide moleculesGiven that plants and trees reduce the amount carbon dioxide in the atmosphere, what does this indicate about the relative rates of photosynthesis and respiration in plants

Answers

Answer:

Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth’s temperature, make up the food that sustains us, and provide energy that fuels our global economy. The carbon cycle. Most of Earth’s carbon is stored in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs through which carbon cycles. NOAA technicians service a buoy in the Pacific Ocean designed to provide real-time data for ocean, weather and climate prediction. NOAA buoys measure carbon dioxide NOAA observing buoys validate findings from NASA’s new satellite for measuring carbon dioxide Listen to the podcast Carbon storage and exchange Carbon moves from one storage reservoir to another through a variety of mechanisms. For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules. Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle. The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. Two-way carbon exchange can occur quickly between the ocean’s surface waters and the atmosphere, but carbon may be stored for centuries at the deepest ocean depths. Rocks like limestone and fossil fuels like coal and oil are storage reservoirs that contain carbon from plants and animals that lived millions of years ago. When these organisms died, slow geologic processes trapped their carbon and transformed it into these natural resources. Processes such as erosion release this carbon back into the atmosphere very slowly, while volcanic activity can release it very quickly. Burning fossil fuels in cars or power plants is another way this carbon can be released into the atmospheric reservoir quickly.

Explanation:

Summarize: In your own words, describe what heredity is and how it works in mice.
Give lots of points!

Answers

Answer:

Heredity is when you "get" from they mom/dad to their childs.

mice have 20 sets of chromosomes, making 40 chromosomes in to in all,and none are the same form of allele

Explanation:

In my own words heredity is when you get characteristics whether there mentally or physically from your parents or people before your parents. An example is when a mouses parents has red eyes and when the baby mouse is born it’s very likely the baby mouse will have red eyes too due to heredity.

Mindy made a study chart in science class. Which headings best complete the chart? X: Insertion Y: Substitution Z: Deletion X: Substitution Y: Insertion Z: Deletion X: Deletion Y: Substitution Z: Insertion X: Substitution Y: Deletion Z: Insertion PLEASE HELP

Answers

Answer:

X: Substitution Y: Insertion Z: Deletion

Explanation:

Answer:

B

Explanation:

X: Substitution Y: Insertion Z: Deletion.

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