BIOLOGY MIDDLE SCHOOL

The rungs of the DNA " ladder " are made up of the _____ The sides of the DNA "ladders " are made up of ______

Answers

Answer 1
Answer: The inside of the DNA or the horizontal "steps of a ladder" are made up of nucleotides (pyrimadine and purine) while the sides are a sugar-phosphate backbone.

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To function on their own, unicellular organisms must do whatA. Maintain Health Only
B. Get Energy, Maintain Health, and Reproduce
C. Select a Habitat, Maintain Health, Reproduce
D. Reproduce and Maintain Health Only

Answers

The right answer is Get Energy, Maintain Health, and Reproduce.

Bacteria need the energy to stay alive and reproduce, but the majority are not very demanding in terms of nutrients, they are said to be prototrophic.

A prototroph is a living organism capable of proliferating (living and reproducing) in a basal medium (minimum medium) without requiring the presence of particular growth factors. It synthesizes itself the substances necessary for its proliferation.

The correct answer is (b) Get energy, maintain health and reproduce.

The unicellular organisms must get energy from the food they eat. They  maintain their health and keep on reproducing to ensure their existence on earth. For example an unicellular organism like amoeba carry out digestion to obtain the energy from the food it engulf. The vacuoles present in their body helps to maintain homeostasis (health). The vacuoles only carries waste products out of the body. Amoeba reproduce by the process of binary fission. All the  above mentioned functions are carried by the amoeba to survive on their own.

What two things are needed for cellular respiration.

Answers

Oxygen and glucose are the reactants used in cellular respiration. The main outcome of cellular respiration is ATP, whereas the waste outcomes are carbon dioxide and water.

What kind of living things engage in cellular respiration?

In addition to algae and other protists, cellular respiration also occurs in the cells of animals, plants, and fungus. Due to the fact that oxygen is needed, it is frequently referred to as aerobic respiration.

While most anaerobic respiration (without oxygen) occurs in the cell's cytoplasm, most aerobic respiration (with oxygen) occurs in the mitochondria.

In eukaryotic cells, such as those found in plants, animals, and fungi, cellular respiration takes place in the cytoplasm and mitochondria. Cellular respiration occurs in prokaryotic cells as well, although it is far less complex and occurs in the cytoplasm.

a chemical reaction that uses oxygen to create energy from carbohydrates (sugars).

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Glucose and oxygen are the two things required for cellular respiration.

How can glaciers cause deposition

Answers

Glaciers can cause deposition by transferring sediment from place to place as it slowly moves along. 
Hope that helped you.

What r baby frogs called

Answers

Frogs lay eggs under water.  When they hatch they are called tadpoles.  After a time as tadpoles they undergo metamorphosis where they grow legs and lungs and become the little friendly hippidy hoppidy guys you see on your porch every night.
Baby frogs are called tadpoles

In which domains are ALL the organisms unicellular? A. Archaea and Bacteria
B. Bacteria and Eukaryota
C. Eukaryota and Archaea
D. Archaea, Bacteria, and Eukaryota

Answers

All three domains include unicellular organisms, archaea, bacteria, and eukarya.
D. Is the answer choice I would go with

Why are two recessive alleles needed for a recessive trait to be shown?

Answers

Because everytime the dominant one appears, it wins over the recessive, thats why the name is dominant. So the only way to one recessive caracteristic appear is if there are 2 recessive alleles because ir wont be Able to one dominant show himself
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