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ankoles [38]
2 years ago
14

Even though Earth's South Pole receives

Biology
1 answer:
Inga [223]2 years ago
3 0
Earth's Energy balance describes how the incoming energy from the sun is used and returned to space. If incoming and outgoing energy are in balance, the earth's temperature remains constant. So it’s B
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which piece of DNA would have the highest tm one with a cytosine plus guanine comment at t 30% or a cystonie plus guane content
erik [133]

Answer:

50% G+C will have a higher Tm

Explanation:

The Temperature of Melting (Tm) refers to the temperature at which 50% of double-stranded DNA (dsDNA) is changed to single-standard DNA (ssDNA). In the double helix of DNA, Adenine bases always pair with Thymine bases through two hydrogen bonds, whereas Guanine bases always pair with Cytosine bases through three hydrogen bonds. In consequence, a DNA molecule containing a higher GC content is more stable than another DNA molecule containing a lower GC content. The Tm can be calculated as follows = 2 °C(A + T) + 4 °C(G + C) = °C Tm (this equation is useful for oligonucleotides of 14 to 20 base-length).

6 0
2 years ago
What is the purpose of a dichotomous key of the sort you might find in a field guide?
Serjik [45]

Good morning!! The purpose of both a dichotomous key and a field guide's purpose is to identify organisms. The only difference between the two is the a dichotomous key just uses descriptions to identify the animal with no pictures, but a field guide uses pictures to identify the organism. Another thing that separates the two is that the dichotomous key gives questions/descriptions that describe the organism, whereas the field guide uses a brief description of the animal. Hope I helped!!

4 0
2 years ago
Read 2 more answers
Chemical reaction equations, such as the one for photosynthesis, show the reactants and products of a reaction. How does this si
deff fn [24]
Well we have to say that It does not show that photosynthesis consists of many separate reactions.Have in mind that the simplified chemical reaction equation of photosynthesis is: <span>6CO2 + 6H2O ------> C6H12O6 + 6O<span>2. The problem is that this equation doesn't show the many other reactions involved in photosynthesis, including the the two important components, the light and dark cycle. I hope this is something very useful for you</span></span>
3 0
2 years ago
Give an example of mechanical and chemical digestion?
Karo-lina-s [1.5K]

Answer:

Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.

Explanation:

Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.

7 0
2 years ago
Read 2 more answers
Which of the following statements is correct regarding engineering maize plants with a herbicide-resistance gene using Agrobacte
Mariulka [41]

Answer:

b. The herbicide-resistance gene is cloned into the T-DNA region of the Ti-plasmid.

Explanation:

Ti-plasmid has the ability to introduce part of its DNA (t-DNA) into the genome of host plants. This is very important for the relationship of genetic manipulation in maize plants, with the aim of inducing a gene that promotes herbicide resistance. In addition, T-DNA has many genes that code for the production of plant growth phytohormones, which is extremely important for the cloning process to work. In this case, we can assume that the correct answer for yours is the letter B.

6 0
3 years ago
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