Carbon is ideally suited to form covalent bonds true or false

Answers

Answer 1
Answer: the answer is true hope i helped

Answer 2
Answer: false you can carbonise about anytype of surface or object 

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The adjustable opening in the center of the eye that helps control the amount of light entering the eye is called the __________.
Why do many earthquakes and volcanoes occur along the Ring of Fire?
20. Which of the following accurately describes carbon atoms? A. Carbon atoms are only found in two of the four main macromolecules. B. Carbon atoms only have three electrons available for bonding. C. Carbon atoms can bond to other carbon atoms. D. Carbon atoms can only form triple bonds with other carbon atoms.
In peas, yellow seed color (Y) is dominant to green seed color (y). A homozygous green pea plant is crossed with a heterozygous yellow pea plant. What is the predicted phenotypic ratio of the offspring? A.50 percent yellow, 50 percent green B.50 percent Yy, 50 percent yy C.100 percent yellow, 0 percent green D.100 percent Yy, 0 percent yy

What does a red shift in light from distant celestial objects indicate to a scientist on earth?

Answers


A red shift in light from a distant source is always assumed to indicate
that the distant source is moving away from us.  That would certainly
cause it, and we don't know of anything else that would, so it's the only
way we know to explain it.

Just about all of modern Cosmology, including the whole idea of the
expanding universe, is based on that interpretation of the red shift.

Understand this:  That interpretation does explain many things that
we do see in space, and it predicts things that we do find when we
look for them.  But that does not prove it, and there is no way to prove
it.  So it's perfectly correct to say that it's "only a theory".

Just like gravity, atoms, and the nature of light.


Predict what might happen to this river ecosystem in a boreal forest biome if a dam were built

Answers

if a dam was built it would flood the river. and perhaps could destroy the land. hope this helps. sorry it's not really explained well. 

Ron is observing an onion cell on a slide under a microscope. He sees chromatids being pulled to opposite ends of the cell. Which phase is he seeing?

Answers

The answer is anaphase.


Ron is obviously observing cell division - mitosis. Mitosis consists of four phases - prophase, metaphase, anaphase, telophase and cytokinesis.

1. Prophase: Chromatin in the nucleus condenses and chromosomes pair up

2. Metaphase: Chromosomes line up at the center of the cell. The sister chromatids are joined together.

3. Anaphase: The sister chromatids separate from each other to the opposite sides of the cells.

4. Telophase and Cytokinesis: Membrane forms around each set of chromosomes on two opposite sides of the cells and cell divides into two identical daughter cells.

 

Therefore, sister chromatids being are pulled to the opposite ends of the cell in anaphase.

Please take your time to see the picture and answer. (40 Points) ~Biology~In YOUR OWN WORDS, describe the functions of two of the membranes shown in the art of the amniotic egg.

Answers

The amnion, allantois, yolksac, and chorion are fluid-filled membranes that allow the embryo to survive inside the egg. The amnion, which is filled with amniotic fluid and provides the embryo with a stable fluid environment, surrounds and protects the embryo.

What is an amniotic egg?

A water-retaining shelled egg with four membranes that allows reptiles, birds, and egg-laying mammals to complete their life cycles.

There are membranes present, namely:

  • Extra-embryonic membranes: these are the membranes present in amniotic eggs that are not a part of the body of the developingembryo.
  • Inner amnioticmembrane: it usually surrounds the embryo.
  • The chorion: it surrounds the embryo as well as yolksac and aids in the exchange of gases.
  • The amnion: it helps to protect the embryo from mechanical shock as well as supports hydration.
  • The allantois: it usually stores nitrogenouswastes generated by the embryo as well as also facilitates respiration.

Thus, these are some membrane that is integral part of the amniotic egg.

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i did this last year lets do this wish me luck it helps how the baby adapts to it mother (2)would be it embryo forms and takes traits from it mother

A woman with Type O blood and a man who is Type AB have are expecting a child. What are the possible blood types of the kid? 2. What are the possible blood types of a child who's parents are both heterozygous for "B" blood type?

Answers

The possible blood type of offspring, when a woman with type O and a man who is type AB are expecting a child are A and B.

What are the types of blood groups?

There are four kinds of blood groups which are A, B, AB, and O, based on the presence of antigens in RBC. Blood groups A and B show co-dominance, while O is recessive.

When a woman with type O blood and a man who is Type AB are expecting a child, the possible blood types are A and B. 50% of the children would have A blood type, and 50% of children would have blood type B, which are heterozygous.

When Parents are both heterozygous for the B blood group, then the possible blood group of offspring would be 75% B blood type (25% are homozygous and 50% are heterozygous) and 25% O blood type.

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a) The child can only have Type A (50% chance) or Type B (50% chance) because type O is recessive and the man carries no recessive O gene.
b) The child could have a 75% chance of having Type B or a 25% chance of having Type O.

What are the main organs of the CNS? brain spinal cord peripheral nerves pituitary gland

Answers

The brain and spinal cord are the main parts of the CNS.