Answer:
The backbone of the double helix is made up of SUGAR molecules and PHOSPHATE groups, and the two chains are joined together by hydrogen bonds between the NUCLEOTIDE BASES
Explanation:
DNA is a double helix structure. It looks similar to a twisted ladder. The backbone is like the sides of the ladder. They are made up of sugar molecules called deoxyribose and phosphate linked together. The nucleotide bases make up the rungs. Each rung is made up of 2 complimentary bases that are held together by hydrogen bonds.
The backbone of the double helix is made of sugar-phosphate molecules and groups. The two chains are joined by hydrogen bonds between the nitrogenous bases. These bases are adenine (A), thymine (T), cytosine (C), and guanine (G)
The backbone of the double helix, such as DNA, is made up of sugar-phosphate molecules and sugar-phosphate groups, and the two chains are joined together by hydrogen bonds between the nitrogenous bases
More specifically, the sugar is deoxyribose, and the phosphate group is a component of each nucleotide. The strands of the helix run in opposite directions, making them antiparallel. The nitrogenous bases that join the two strands are adenine, thymine, cytosine, and guanine - adenine always binds with thymine and cytosine with guanine.
#SPJ3
b. they are made up of atoms
c. they are made up of elements
d. they are made up of molecules
Food chains is a path that energy flows in an ecosystem and it usually indicate the level of eating within an ecosystem.
Producers are organism that usually absorb the sun’s energy and thereby convert the energy into food for growth and to make fruits or flowers. Examples include plants, algea
Primary Consumers: they are organism that only eat plants and can also be refers to as herbivores. However, example of herbivores includes grasshopper and bees.
Secondary consumers: they are organisms that eat both producers and primary consumers. They can be refers to as omnivores. Example includes beetle and wasp.
Level of Food chain
Plant---------Grasshopper---------Beetle
A food chain consisting of a producer, primary consumer, and secondary consumer includes grass as the producer, rabbits as the primary consumer, and foxes as the secondary consumer.
An example of a food chain that consists only of a producer, primary consumer, and secondary consumer is as follows:
In this example, the grass is the producer as it produces its own food through photosynthesis. The rabbit is the primary consumer as it feeds on the grass. The fox is the secondary consumer as it preys on the rabbit.
#SPJ6
Biotic components or biotic factors are any living organisms that affect another organism. These components shape an ecosystem which includes animals that consume organisms in question and its living food that the said organisms consume. Biotic components include human influence. Producers, consumers and decomposers usually comprise biotic components.
The biotic component of an environment are (a) plants and animals because only plants and animals are living
Biotic components are the living parts of an ecosystem. They include plants, animals, bacteria, and fungi. Biotic components interact with each other and with the abiotic components of the environment.
Abiotic components are the non-living parts of an ecosystem. They include air, water, soil, and sunlight. Abiotic components provide the physical environment for biotic components to live and grow.
So the answer is (a), plants and animals.
Find out more on biotic component here: brainly.com/question/22407203
#SPJ6
Complete question:
Which of these are biotic components of the environment?
(a) plants and animals
(b) soil and minerals
(c) air and water
(d) sunlight and temperature
b. decreased eutrophication
c. increased air pollution
d. oil spills
Answer:
it is B
Explanation:
I just took the test in edge