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Bingel [31]
3 years ago
13

Bacteria can be classified by shape. For the following bacteria species, give their basic bacterial shape.

Biology
1 answer:
Ugo [173]3 years ago
7 0

Streptococcus pyrogenes : Round (or) Ovoid

Paenibaccilus polymyxa:

Aquaspirillum bengal: Helical

Explanation:

  • Streptococcus pyogenes are gram positive, Round shaped, Anaerobic growth bacteria, Non-motile bacteria.
  • Aquaspirillum bengal is helical  in shape with  its composition of  deoxyribonucleic acid  and cytosine. It is Gram negative and chemo-organotrophic. It is also motile with the help of flagella.
  • Paenibacillus polymyxa is also known as Bacillus polymyxa which is  capable of fixing nitrogen. It is found in soil, plant tissues and marine sediments. It has a major role in forest ecosystems and potential future applications as a biofertilizer and biocontrol agent in agriculture.
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Using complete sentences, answer the questions below. please help!
Art [367]

An atom is the smallest known unit and it is present in all the matter. The space occupied by atom is divided into two components: the nucleus and orbitals. The nucleus is the center of the atom, and orbitals surround the nucleus.

Location of protons-

Protons are positively charged particles within atoms. Each atom has at least one proton. The number of protons determine the identity of an atom.Protons reside in the nucleus of the atom.

Location of Electron-

Electrons travel around the nucleus in the orbital. Electrons are negatively charged particles. In a neutral atom, the number of electrons and protons are same. Though they are much smaller than protons but have the same strength charge.

Location of Neutrons-

Neutrons are located with protons in the nucleus. They have no charge and have the same mass as protons. Not all atoms have neutrons, and the number of neutrons is not usually the same as protons or electrons.

Part B-

I agree with Jane's statement as an aluminium atom has a dense central nucleus surrounded by negatively charged electrons, The protons and neutrons are closely packed in the center an 13 electrons are surrounding this center.

7 0
3 years ago
Discuss the relationship between food webs and trophic levels.
Damm [24]
The tropic level is each level of hierarchy in an ecosystem and the primary source of energy left over after an animal is consumed from the lowest level up. a food web is a system of inner locking interdependent food chains.
Hope it helped
8 0
3 years ago
A(n) is a molecule, cell, or organ that directly carries out a response to a stimulus and restores homeostasis.
anastassius [24]

Answer:

Red blood cells and the heart causes response to stimuli

3 0
2 years ago
Rosa drew a flow chart of the carbon cycle. Flow chart of the carbon cycle with 4 boxes connected by arrows. Box 1: carbon dioxi
leonid [27]

Answer:

(a) X: Producers undergo photosynthesis. Y: Decomposers return carbon to the soil and release waste.

Explanation:

<em>(a) X: Producers undergo photosynthesis. Y: Decomposers return carbon to the soil and release waste. </em>

<em>(b) X: Decomposers return carbon to the soil and release waste. Y: Producers undergo photosynthesis. </em>

<em>(c) X: Decomposers take in carbon dioxide. Y: Producers absorb carbon through their roots. </em>

<em>(d)X: Producers absorb carbon through their roots. Y: Decomposers take in carbon dioxide. </em>

<u>Box 2 (X)  would be the process through which producers fix carbon dioxide to produce their own food, the carbohydrate. T</u>he process is otherwise known as photosynthesis and can be represented by the following equation:

6CO_2 + 6H_20 --> C_6H_1_2O_6 + 6O_2

<u>Box 4 (Y) would be the process of decomposition.</u> Both producers and consumers eventually die and decompose in the soil. During this process, some of the carbon returns to the soil as organic matters while the process of microbial decomposition releases carbon dioxide into the atmosphere.

The correct option would be (a).

3 0
3 years ago
3. RNA contains which of the following bases:
Tju [1.3M]

Answer:

D) Adenine, Guanine, Cytosine, and Uracil

Explanation:

RNA shares three of the nitrogenous bases of DNA: Adenine, Guanine, and Cytosine. However, instead of thymine, it has Uracil!

5 0
3 years ago
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