BIOLOGY MIDDLE SCHOOL

1. A DNA strand is made up of how many strands of nucleotides?2. Name one way that DNA and RNA differ.
3. Nitrogenous bases are held together by what type of bond?

Answers

Answer 1
Answer:

Answers:

1. 2 strands. (known as polynucleotide)

2. DNA is double stranded while RNA is single stranded.

3. Hydrogen bonds.

There are four types of them;

• Adenine and Thymine are double H-Bonds.

• Guanine and Cytosine are triple H-Bonds.

Additional:

Other DifferencesbetweenDNA andRNA:

•DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.

• DNA is stable under alkaline conditions while RNA is unstable.

•DNA is responsible for storing and transferring genetic information while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.

Ihopeit's helpful:)

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Answers

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hope this helps you

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Answers

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Lipids are very diverse in regards to function. Which of the following is NOT a function of alipid?
A Insulation
B. Structural support
C. Provide energy
D. Control metabolic functions

Answers

Lipids accomplish many different functions, such as energy provision, structure, and insulation, among others. However, they are not in control of metabolic functions. Therefore the answer is D.

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Lipids are amphipathic molecules with hydrophilic heads -negatively charged phosphate group- and hydrophobic tails.

Lipids are involved in several functions. Among others, we can mention,

  • Energy provision

In the organism, lipids constitute the energetic reserve of late or differed use. These are in the triacylglycerol form. Their caloric content is very high and represents a significant source of energystorage.

  • Water reserve

Aerobic combustion of lipids produces a great metabolic water quantity. Some desertic animals -camels- store fat in their tissues to produce water when needed.

  • Heat production

Some other animals produce a specialized adipous tissue called brown fat. Lipidic combustion in these tissues is decoupled from oxidative phosphorylation. Most of the energy derived from combustion is used for heat production.

Hybernating animals use this brown fat to produce energy during the long hibernation periods.

  • Structure

Two lipidic bilayers compose the cell membrane. They are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane. They can also provide protection and isolation for specialized tissues and organs.

  • Cell signaling

Lipids are involved in cell signals. They control the fluidity of membranes in the central and peripheral nervous systems, playing a role in electrical signals transmission and synapses.

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Related link:brainly.com/question/23093734?referrer=searchResults
i think it might be D.
Lipid does provide insulation.
Lipid provides structural support in the cell membrane.
Lipids act as an energy reserve.
However for the last option, lipid cannot control metabolic functions. it can only do so with the aid of a protein to form a lipoprotein.

Think of an activity that involves work. write about how work is transferring energy and where the transferred energy goes.

Answers

In work, there's the transferring of energy that happens. One example of it is the kinetic energy in which you are pushing or pulling something. The energy that comes from your body is being transferred to the object that you are pushing or pulling with.

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B. vestibule
C. on-the-job
D. performance

Answers

they are employing B. vestibule training

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Answers

The areas of texture, appearance and the type of pressure applied during crystallization determines whether a metamorphic rock is foliated or non-foliated. Foliated rock is formed if the pressure applied to the recrystallizing rock is unequal. If the pressure applied to the recrystallizing rock is equal all over, a nonfoliated rock will be created.
foliated metamorphic rocks have a layered or banded appearance that is produced by exposure to heat and directed pressure, non-foliated metamorphic rocks do not have a layered or banded appearance. 
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