1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mash [69]
2 years ago
6

Pls help me??????????

Biology
1 answer:
castortr0y [4]2 years ago
5 0

Answer:

Your answer is B). Massive stars undergo a supernova at the red giant phase.

You might be interested in
On a footpad, which layer of skin is the thickest?
grandymaker [24]
A. Stratum corneum is the layer of skin that is the thickest.
4 0
3 years ago
Read 2 more answers
Someone help and answer. Cellular respiration and photosynthesis are related because
stich3 [128]

Answer:

B

Explanation:

The products of one reaction are the reactants of the other reaction.

A) is incorrect because cellular respiration does not make gulcose

C)Photosynthesis does not require oxygen

D) Photosynthesis does not make carbon diozide

B is the only right answer

5 0
2 years ago
Read 2 more answers
What do organsims and organelles have in common? (other than being living things)​
Salsk061 [2.6K]

Answer:

they both have dna and other stuff

Explanation:

yea

5 0
2 years ago
Minerals have a crystal structure, yet, crystals are relatively rare. What are the reasons for this?
Licemer1 [7]

Answer:

What are relatively rare are crystals of a size visible to the naked eye, and also showing most of the faces that reveal the internal symmetry of their atomic pattern.

Explanation:

Being crystalline, i.e. having a regularly repeated three-dimensional atomic pattern, does not mean that a mineral necessarily formed under conditions where it could nucleate (i.e. assemble as the tiny cluster of atoms that is the “seed” of a single crystal) and keep growing large flat faces until a regular shape becomes visible to the observer.

To a crystallographer who can seek proof of internal atomic order by X-ray diffraction, the actual size of a solid made of highly ordered matter is irrelevant. Specific techniques (variants of X-ray diffraction methods, or polarizing microscopy) can reveal that a solid material is made of a single crystal (i.e. a uniform atomic pattern is repeated in the same orientation anywhere throughout the solid) or consists of many crystals (the same pattern occurs, but it is oriented differently in what are considered individual crystals regardless of their individual shape or size).

For precision, a crystallographer or a mineralogist will use terms such as “monocrystalline” (the atomic pattern has a single orientation throughout the entire specimen, regardless of shape and size) and “polycrystalline” (the specimen is an aggregate, or collection, of “domains” or “grains” in which the atomic pattern is in an orientation different from its neighbours).

A perfect single crystal of quartz, broken in several chunks, doesn’t lose its internal atomic pattern, only its external “habit” (the overall shape imparted by the flat faces that grew, layer by layer, along directions controlled by the rate of addition to the atomic pattern). Each individual broken chip of quartz is considered “monocrystalline” by the mineralogist, even if none ofo them is the whole original crystal.

Most igneous and metamorphic rocks are polycrystalline, i.e. entirely made of crystals, often tightly packed and interlocked. You may discern individual grains mostly when light reflects off surfaces exposed by breaking along preferred directions within some minerals, or because grains from different minerals contrast in colour or luster. Few of the grains will have a regular geometric shape, despite each one being a single crystal. In the case of an igneous rock, some of the well-formed crystal are typically minerals who grew early from the still-liquid magma. Most of the other minerals simply filled the remaining space. If an igneous magma was “gassy” or “watery”, those volatiles may have remained trapped in the last stages of crystallization and formed late pockets in which a few crystals of exceptional quality grew from the remaining dilute magma and had the space needed to fully develop perfect faces. In many rocks, it is later fractures that provided an “open space” in which crystals could grow larger and with well-developed faces from hydrothermal fluids (overheated ion-rich waters), for the future delight of collectors.

3 0
2 years ago
How are species introduced to new ecosystems?
Igoryamba
They start as single cell orginisms then they evolve from there. 

hope that helps

8 0
3 years ago
Read 2 more answers
Other questions:
  • Both plants and animals need water to start cellular respiration true or false
    8·1 answer
  • Imprinting is a form of what behavior that
    8·2 answers
  • Explain the difference between chromosomes, chromatids and chromatin. (3-4 sentences)
    6·1 answer
  • The gradual change and buildup of organisms in an environment
    11·2 answers
  • Need help with this ??
    7·2 answers
  • Stacey book to vegetables one of them is Scaley with a few birds which parts did she buy
    15·1 answer
  • Genetic engineering occurs when scientists
    12·1 answer
  • How does farming affect biodiversity
    11·1 answer
  • What are the four structures of the joint​
    9·1 answer
  • What is the total magnification with each objective?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!