How can scientists tell what a star is made of?

How Can Scientists Tell What A Star Is Made Of?

Answers

Answer 1

Answer:

i believe the answer is c

Explanation:

hope this helps :) have a nice day !!

**please let me know if this was wrong**

Answer 2

Answer: C

Explanation: I hope it helps! :)


Related Questions

Ventricles are chambers of heart which are:​

Answers

Answer:

they are chambers located below the two atria.

the right ventricle receives deoxygenated blood whereas the left receives oxygenated blood which opens up into the aorta

How many categories are there on the Modified Mercalli Scale?

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Answer:

i hope this helps!!?

Explanation:

Giuseppe Mercalli (1850-1914) originally developed the scale, with ten levels. In 1902, Adolfo Cancani extended the scale to include twelve levels. August Heinrich Sieberg completely rewrote the scale. For this reason, the scale is sometimes named Mercalli-Cancani-Sieberg scale, or MCS scale.

Answer:

awsten knight

Explanation:

A diagram of a human skeleton. ​

Answers

Answer:Here is a detailed form of the human skeleton.Hope it helps!

Use a punnett square to calculate the following:

George is the youngest child in a family that includes 4 children. All of the children have the recessive phenotype-attached earlobes. However both parents have unattached earlobes, the dominant trait. Use the letters G. g and answer the following:

What is the genotype of the mother?

What is the genotype of the father?

What percentage of the offspring would express the recessive trait?

Answers

Answer:

Father - Gg

Mother - Gg

25 percentage

if four cells went through mitosis at the same time how many daughter cells would be formed? ​

Answers

Two cells would be formed

3. Which type of fossilization occurs when a sticky substance from plants captures and preserves an organism?

Permineralization
Mold
Fossil Resin
Tar

Answers

Answer:

Fossil Resin

Explanation:

The type of fossilization that occurs when a sticky substance from plants captures and preserves an organism is Fossil Resin.

Fossil resins are usually trapped in the resin that some trees and plants including amber, copal, and retinite exude.

Amber is also a fossil resin. Under the right conditions, resins polymerize and turn into copal. Copal matures into amber after several million years.

do boys lose the ability to scream after puberty ? not shout scream​

Answers

Answer:

weird question but I don't think so-

Answer:

No, They do not.

Explanation

As you get older, your larynx grows and your vocal cords lengthen and thicken, resulting in a deeper voice. Your voice can "crack" or "break" as your body adjusts to the new equipment. However, this procedure only takes a few months, it does not affect a boys ability to scream.

ASAP Help Please!! Why is bread soft and airy?
o Bacteria secreting lactic acid is breaking up the gluten
o Yeast is secreting alcohol and dissolving the gluten
o Yeast is secreting CO2 causing bubbles in the dough
o Bacteria is eating up some of the gluten

Answers

Answer:

Yeast is secreting CO2 causing bubbles in the dough

Explanation:

Answer:

option b

Explanation:

Yeast is secreting CO2 causing bubbles in the dough

what comes out from capillaries

Answers

Answer: Blood moves very slowly through capillaries. As the blood moves through a capillary, nutrients, oxygen, and food leave the blood and enter the body cells. The blood also picks up wastes and carbon dioxide.

Explanation:

Just want to make sure these are correct (if one is wrong then there should be another wrong answer)

Answers

Answer:

I think they're correct

Which trait is considered dominant?
HURRYYYY PLEASEEEEEE FASTTTT

which trait is considered dominant?

The trait that is hidden or covered up by the recessive trait.

The trait that is the most specific.

The trait that masks or covers up another trait and appears
any time its allele is present at least once in the gene pair.

The largest trait someone can have.

Answers

Answer:

D. The largest trait someone can have

Explanation:

This option makes the most sense to me because the dominant trait is the largest trait you can have, that is used the most often in your genetic code.

I hope it helps and is correct!

I thinks it’s C but I’m not sure. It could also be B. I’m pretty sure it’s not A or D. Sorry

A recognizable group of stars in the night sky, that appeared change position throughout the year is called?

Answers

constellations because they change position through the sky and they’re a recognizable group of stars

Answer:

Constellation

Explanation:

A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky.

Which of the following is true about environmental hazards to humans?
A)
Children are more at risk than adults because they take in more air per unit mass than adults.
B)
Adults are most at risk because they have the highest exposure to environmental hazards.
C)
Elderly people are most at risk because their immune systems do not perform efficiently.
D)
Children are least at risk because they have well functioning immune systems.
E)
Adults are most at risk because they take in more pollutants relative to their size than children.

Answers

Answer: A)

Explanation:

Children are at a higher risk of suffering negative effects from environmental hazards than adults, because children do not have fully developed immune systems. In addition, children have a higher exposure to environmental hazards, because they spend more time outside, on average, than adults. Children also take in more air per unit mass than adults, which means that they also take in more pollutants relative to their size.

ill) Age changes in white blood cells include decreases in the number and rate of release
of stored cells, rate of movement, ability to be chemically attracted to areas, and
proportion of cells capable of performing phagocytosis. Explain how these changes will
affect the human body.
(2) PLEASE HELP... Reliable answer will receive brainliest.​

Answers

Answer:

it will reduce the ability of white blood cells to guide against disease

please help in your own words i’ll mark brainliest

use an analogy to explain the sequence of events in the replication of DNA

Answers

Answer:

- There are three main steps to DNA replication: initiation, elongation, and termination.

- In order to fit within a cell's nucleus, DNA is packed into tightly coiled structures called chromatin, which loosens prior to replication, allowing the cell replication machinery to access the DNA strands.

Plants and other autotrophs can not rely on photosynthesis alone for energy.
True or false

Answers

True they can’t rely on photosynthesis alone for energy

when people take a mineral and hold it up, what kind of test is that?
a) luster
b) cleavage
c) hardness
can someone plss help me??​

Answers

Answer:

Luster

Explanation:

luster is the only answer that has to do with light. Luster is measured by the way a mineral reflects light.

Cleavage has to do with breaking minerals apart along certain fracture lines. Cleavage is not the answer.

Hardness is a test where one mineral is used to scratch another. The one that does the scratching is harder than the one that is scratched.  

What is the significance of crossing over?

Answers

Answer and Explanation:

Crossing over is the switching of genetic material (DNA), which occurs in Prophase 1.

This all happens in Meiosis, which is the process of the formation of sperm and egg cells.

The paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

#teamtrees #WAP (Water And Plant)

Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.

3'-GTGCACCTGACT-5'

Which sequence of mRNA is the correct transcription of this DNA?

Answers

Answer:

The correct answer is - 5' CACGUGGACUGA 3'

Explanation:

Transcription is one of the important processes in protein synthesis that involves encoding the genetic information of DNA into an mRNA molecule that takes it to the ribosome and translates it to amino acids.

The transcription from DNA to mRNA occurs in a complementary manner for the nitrogenous base which means adenine converts to uracil and thymine converts to adenine similarly guanine and cytosine convert in each other.

Thus, 3'-GTGCACCTGACT-5' will be translated as:

5' CACGUGGACUGA 3'

Answer:

B

Explanation:

i just the test

The spiders mentioned in the paragraph are
A
Parasites
B
Carnivores
C С
Scavengers
D
Herbivores
©2021
Illuminate Education TM, Inc.

Answers

Answer: the answer is C, Carnivores

Explanation: it says that spiders eat other insects, which makes them a Carnivores. I also have the same quiz in Illuminate but that's not really important, I just thought that it was cool that we go to the same school :)

plz help asap! The availability of which of the following factors would directly limit the productivity of the Calvin cycle?


CO2
Light
Water

I only
II only
I and II only
II and III only

Answers

Answer:

II and II only

Explanation:

i just took the quiz and i got an A

whats the structure and function of the effector

Answers

Answer:

Effectors include muscles and glands - that produce a specific response to a detected stimulus.

Explanation:

Effectors are parts of the body - such as muscles and glands - that produce a response to a detected stimulus. For example: a muscle contracting to move an arm. muscle squeezing saliva from the salivary gland.

which of the following is NOT a way in which a lake can become a
forest? *
A. The plants are eaten by many animals.
B. Dead leaves settle to the bottom.
C. The soils dry out.
D. The lake is filled with sediment.

Answers

Answer: A. The plants are eaten by many animals.

Explanation:

where does the pollen go

Answers

Answer:

To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.

Explanation:

To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.

How does cytokinesis in animal cells differ from cytokinesis in plant cells?

Answers

Answer:

Cytokinesis occurs differently in animal and plant cells. In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form. In plant cells, a cell plate forms along the equator of the parent cell.

Explanation:

Cytokinesis occurs differently in animal and plant cells. In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form. In plant cells, a cell plate forms along the equator of the parent cell.

whats the location of a nerve impulse?

Answers

Answer:

the place where the axon of one neuron meets the dendrite of another, using chemicals called neurotransmitters

the testes in a man and the ovaries in a women are reproductive organs what is the main function of these organs in the process of reproduction
A. to pump blood through the veins and arteries of the human body.
B. to secrete waste products that are harmful to the human body.
C. to produce sex cells that join to form a developing baby.
D. to store iron that will be used to make red blood cells.

Answers

Answer:

to pump blood through the veins and arteries of the human body

Testes in man and ovary in female is a part of the reproductive organ which produce gametes, after fertilization to develop a baby, hence c is the correct option.

What are reproductive organs?

Female reproductive organs consist of the ovary which generates the ovum a female gamete that is responsible for fertilization.

Males consist of consisting of tests that generate the sperm male gamete which is responsible for fertilization.

Both organs are necessary to produce a gamete for fertilization which develops a zygote and makes the baby is developing of the cells.

Therefore, for producing sex cells ovaries and testes are important organs, hence option c is correct.

Learn more about reproduction, here:

https://brainly.com/question/11731747

#SPJ6

Fill in the blanks

Both anaerobic and aerobic respiration use
to produce ATP and NADH. In anaerobic respiration, NADH is regenerated to NAD+ by
, while in aerobic respiration, electrons from NADH are deposited in the
to regenerate NAD+. Anaerobic respiration produces
ATP per molecule of glucose compared to aerobic respiration.

Answers

Answer:1.A. Glycolysis;

2.A. fermentation pathways;

3.C. electron transport chain;

4.A. less.

Explanation:

The planets, comets, and meteors of the solar system are held
(in orbit by the Sun's.
fa. Gravity
16 Spring force
I. Friction
d. Tension

Answers

Answer:

Gravity

Explanation:

Gravity keeps the planets, comets and meteors in orbit around the sun. The sun is bigger and heavier than other planets etc, this causes the planets to be pulled and kept in orbit around the sun.

Hope this helps!

What happens to the size of plants during sucession?


they get bigger


they get smaller


there is no change in siz

Answers

Answer: They get smaller
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