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astra-53 [7]
3 years ago
5

Convection currents can be described best by:

Biology
1 answer:
s344n2d4d5 [400]3 years ago
8 0

Answer:

A.Hot air rising,cold air sinking

Explanation:

Hot air rises in a confined or closed space.That is one of the reasons why firefighters have some people crawl on the flour to get out. the smoke is hot air so it rises to the ceiling of the room, while cold air stays lower.

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A woman with color-normal vision, but whose father was color blind, marries a man with normal vision. They are expecting a child
kotegsom [21]

To know what happens here, you need to analyze the alleles.

If the father is color blind and the daughter is not, you can suppose that is a recessive allele.

You can tell she is a carrier only, and because we received one sexual allele from each parent. If they ask you about the gender, we can suppose a cross between Xx and XY being lower x the recessive allele (color-blind vision).

When you draw the Punnett square, you'll found the probabilities are XX, XY, Xx, and xY.

So, you have a 50% chance of having a boy and 25% chance of having a color-blind boy.

4 0
4 years ago
James is riding a bike down a hill. As he gets to the bottom, he applies the brakes to stop the
Gennadij [26K]

Answer:

The answer is D.

Explanation:

The friction of the brake rubbing the rim of the front tire causes the bike to slow down and stop.

8 0
3 years ago
What is the name of thespecific organelle that is studded with<br> ribosomes in a eukaryoticcell?
Alik [6]

Answer:

The (rough) endoplasmic reticulum

Explanation:

The endoplasmic reticulum is a system of interconnected membranes that functions in the synthesis of several membrane-related proteins and lipids. There are two types of endoplasmic reticulum in the eukaryotic cell;

  • Smooth endoplasmic reticulum
  • Rough endoplasmic reticulum

The smooth endoplasmic reticulum is actually smooth because it has no ribosome attachment while the rough endoplasmic reticulum appears rough due to the attachment by ribosomes.

<em>Therefore, the name of the specific organelle that is studded with ribosomes in eukaryotic cell is endoplasmic reticulum.</em>

5 0
3 years ago
Scientists can use mutants to study metabolic pathways. These organisms have a mutation in a gene encoding a metabolic pathway e
lisabon 2012 [21]

Answer:

Pyruvate kinase

Explanation:

Yeasts convert glycerol and sugars into glyceraldehyde 3-phosphate (G3P) through independent pathways. Then, G3P forms pyruvate and, in some circumstances, pyruvate is converted in ethanol, which can be used as energy sources. If the mutation affects any reaction before G3P formation, it will only affect yeast growing either on sugar or pyruvate but not both.

Pyruvate kinase is the only enzyme on the list acting after G3P is formed and before pyruvate is formed. All other options are enzymes acting only in the formation of G3P from sugars. Meaning that only pyruvate kinase mutants will lack the ability to grow on both sugars and glycerol.

6 0
3 years ago
What are biomes in wisconsin
frozen [14]
<span>Wisconsin is mostly made up of the temperate deciduous forest biomes, although temperate grasslands and a few other biomes also exist within the state</span>
7 0
3 years ago
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