A nebula is composed of dust and gas, but what are the elements in a nebula?

Answers

Answer 1
Nebulae are made of dust and gases—mostly hydrogen and helium. ... Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.



Hope this helps !
Answer 2

Answer:

the person above has correct

Explanation:

"Nebulae are made of dust and gases—mostly hydrogen and helium. ... Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star."


Related Questions

How is the egg transferred from the ovary to the uterus?

through muscle contractions
by using special hairs
by producing estrogen
through secretions of glands

Answers

Answer:

by using special hairs

Explanation:

When an egg pops out of an ovary, it enters the fallopian tube. Once the egg is in the fallopian tube, tiny hairs in the tube's lining help push it down the narrow passageway toward the uterus.

Answer:

B: By using special hairs.

Explanation:

I went on to edge reviewed my test and the answer was right.

Hope this helps!

How is volvox life different than euglena life?

Answers

Answer:

Paramecium have cilia to move/eat, but euglena have flagella to move. How are euglena and volvox similar and different? Both can make their own food using chloroplasts (autotroph), but euglena can also hunt for their food. Both also use flagella to move, but volvox move together in colonies.

Explanation:

What is the Kreb Cycle and what happens during that stage in the cellular respiration?

Answers

Answer:

The sequence of the response of many living cells that produce energy during aerobic respiration. It occurs in mitochondria, consumes oxygen, produces carbon dioxide and water as waste products, and converts ADP into energy-rich ATP.

which combination of alleles could be produced in a gamete of an individual that has the genotype AaBbcc? A) abc B) AB C) Aa D) ABC

Answers

Answer:b. AB

Explanation:

Scientists use zebra fish to study human genetic diseases because zebra fish and humans share many of the same genetic diseases.

Which statement describes why zebra fish experience similar genetic diseases as humans?

Answers

Answer:

The answer is: zebra fish have nucleotide sequences similar to those of humans

Explanation:

A. zebra fish have an omnivorous diet similar to that of humans (wrong)

B. zebra fish have nucleotide sequences similar to those of humans (right)

C. zebra fish go through embryonic stages similar to those of humans (wrong)

D. zebra fish produce gametes through a process that is similar to that of humans (wrong)

Why is shoulder most susceptible ro joint dislocation?​

Answers

Answer:

The muscles and ligaments around the shoulder tend to be stretchy and relatively vulnerable (compared to those around the hip). Thus the shoulder is relatively easy to dislocate. The hip is much harder to dislocate even though it is also a ball and socket joint.

Answer:

The shoulder's muscles are stretchey and like elastic in some ways, and then it is easy for someone to dislocate it.

Explanation:

Hope this helps, Have a nice day, and Merry Christmas

during internal fertilization, and embryo forms inside the female's body
True or False?

Answers

Answer:

Explanation:

mi belive the answer is true but i not sure sorry

Answer:

True

Explanation:

Internal means inside, therefore the embryo forms inside the female's body.

How many chromosomes do human somatic cells (body cells) have?

Answers

Answer:

46

Explanation:

Answer:

46

Explanation:

Why do cells need to carry out cellular respiration?

Answers

they need to because this is how they convert chemical energy from oxygen into ATP which helps them reduce waste

Amylase becomes denatured at a temperature of 80c. During an experiment to study the effect of varying temperatures on enzyme activity, amylase's reactivity with starch was measured at a body temperature of 37c and then again at an increased temperature of 42c. How would this increase in temperature affect the experiment?

Answers

Answer:

The rate of reaction will increase

Explanation:

Temperature is known to affect the rate of the reaction. Generally, chemical reactions depend on thermal activation. It means that an increase in temperature also increases the kinetic energy of the reactants. Increasing the temperature increases the reaction rate due to the increase in the number of molecular collisions between reactant molecules. The speed of a particle is directly related to its kinetic energy and thereby an increase in temperature also results in an increase in the amount of collisions between molecules per unit of time.

explain how and why an earthquake occurs in thorough detail. You should also be identifying the four labels below within your explanation. A good answer would be longer than a paragraph (but < 3)

Answers

Answer:

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.

Sometimes an earthquake has foreshocks. These are smaller earthquakes that happen in the same place as the larger earthquake that follows. Scientists can’t tell that an earthquake is a foreshock until the larger earthquake happens. The largest, main earthquake is called the mainshock. Mainshocks always have aftershocks that follow. These are smaller earthquakes that occur afterwards in the same place as the mainshock. Depending on the size of the mainshock, aftershocks can continue for weeks, months, and even years after the mainshock!

Pls help me I don’t have much time left I’ll give brainliest

Answers

Answer:

A. 10 N right. I believe this is the right answer

Which temperature air would have the lowest pressure?
100 degrees F
75 degrees F
50 degrees F
35 degrees F ?

Answers

Answer:

35

Explanation:

it can be 35 I'm 90% sure

What is the answer for this?

Answers

The last one
The color change is to help hide from predators

plate tectonics explains

Answers

Answer:

From the deepest ocean trench to the tallest mountain, plate tectonics explains the features and movement of Earth's surface in the present and the past. Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.

Explanation:

hope this help

pick me as the brainliest

11. DDT is a pesticide that can't be broken down by organisms. If a farmer sprays
DDT on the strawberry plants above, which trophic level will contain the highest
concentration of DDT?
a. Producers
b. Herbivores
c. Second-order Consumers
d. Third-order consumers

Answer quickly plz

Answers

The answer is A. I did the assignment

Why do you think there are more nutrients at the bottom of the ocean?

Answers

Because of the salt and the natural things living in the ocean as well as the bacteria

Which of the following describes a mutual relationship?
(A) Which of the following describes a mutual relationship?
(B) Ants drink nectar from an acacia tree and protect the tree from harmful insects.
(C) A flock of seagulls fly together to reduce the amount of air resistance they feel.
(D) A grasshopper and a rabbit eat different types of plants to avoid competition.

Answers

Answer:

I think the answer is B-------

Vertebrates are complex animals, but they still share some characteristics with invertebrates. Mia volunteers at her city's aquarium for the summer. She likes observing the invertebrates. Which statement explains the pattern in the body structures of invertebrates, starting with the sponges and ending with echinoderms?

Answers

Answer: Their body structure becomes increasingly more complex.

Explanation:

In the classification of living things, all animals belongs to Kingdom Animalia. This is contains two main groups namely:

--> invertebrates and

--> Vertebrates.

The vertebrates are complex animals which are characterized with the presence of a backbone.

The invertebrates are less complex animals with no backbone. The phyla that exists in this group includes: porifera, coelenterata, platyhelminthes, nematodes,annelida, mollusca, arthropoda,echinodermata and many among others.

Their body structure becomes increasingly more complex from the phylum porifera to the phylum echinodermata. The Sponges are simple aquatic invertebrates that have ASYMMETRICAL BODIES (this makes them to lack specialised tissues that could prevent them from moving about). While the echinodermata have RADIALLY SYMMETRICAL body with body parts arranged around a central mouth and anus. They have a unique system of water canals for transport inside the body and numerous tube feet moving about.

compare the reproductive strategies of a short lived species such as a starfish and a long lived species such as a hippopotamus​

Answers

Answer:

Starfish reproduce every winter by ejecting there eggs into the water, since they only live on average 35 years they reproduce about 35 times in their lifetime. Only a couple of the eggs will fertilize and turn into a Starfish.

Hippos are the only mammals in Africa that reproduce in water, Hippos reproduce in May and through June. Hippos usually live to around 40 to 50 years, and most hippos through May and June reproduce more than one time.

Explanation:

Hippos strategies of reproducing are better than Starfish.

Which of the following blood cell's function is to carry oxygen?
red blood cells
platelets
B
white blood cells
D plasma

Answers

Answer:

the red cells are the ones that carry it

Explanation:

The red cels are the ones carrying it

why are plant cells undergoing cell division do not have a vacuole? Please answer this question within 1-2 hour/s

Answers

Answer:

because they can

Explanation:

Unfortunately brainly won't let me put the question for some reason, so I'll provide the question in the screenshot, please read...

Answers

I get you :-)

If supposedly there were air spaces in the palisade cell,it would have fewer chloroplasts that carry out photosynthesis.Hence photosynthesis won't be as effective.

Hope this made sense

During the process of meiosis, chromosomes are divided evenly, so that the sex cell receives ONE chromosome from each homologous set. What are these sex cells called?

Answers

Answer:  

Mitosis, Meiosis, and Inheritance

According to the RNA Hypothesis it is believed that all living things came from a common ancestor. What evidence supports this theory?
A. The RNA molecule has the same molecule controlling its replication in all living things.
B. The RNA molecule is able to self-replicate.
C. The RNA molecule is an inorganic molecule
D. The RNA molecule is considered the master copy of all living things.

Answers

Its A i can be Wrong

Answer:

D. The RNA molecule is considered the master copy of all living things.

can someone please help me answer this please?

Answers

Answer:

c

Explanation:

when things are big and closer together the grater the gravitatianl pull.

plz excuse my spelling i know this is right plz mark me brainlyest

What does the term “carbon cycle” mean?

Answers

Answer:

Carbon cycle is:

the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.

Which of the following is not an adaptation of birds to living in the chaparral biome?
A) ground-dwelling
B) crepuscular activity
C) nesting in trees
D) moisture-rich diet
E) migration during mating season
PLS HELP ASAP

Answers

The choice that isn’t an adaption is choice D because although having a moisture-rich diet is essential for birds, it isn’t required for them to obtain this adaptation when living in the chaparral biome. I hope this helps.

All organic compounds contain:

Question 9 options:

oxygen


hydrogen


chlorine


carbon

Answers

Answer:

D. carbon

Explanation:

all organic compounds consist of at least 1 atom of carbon which is then bonded to hydrogen, oxygen, nitrogen, etc.

Answer:

D) Carbon

Explanation:

Which of these is a ball and stick model?

Answers

The ball is the 3rd option I believe
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