BIOLOGY HIGH SCHOOL

Which best describes a bacterium?

Answers

Answer 1
Answer:

The following options are attached to the question above:

A. A unicellular prokaryote

B. The shell surrounding a pilus

C. A type of virus

D. A particle that attacks viruses

ANSWERS

The correct option is A.

Bacteria are unicellular organisms, which have no true nucleus and they possess simple internal structures. They are microscopic organisms and they can be found in diverse places such as in the soil, ocean, in the human gut, in the air, etc. Bacteria are usually very small in size and large number of them usually exist together as a community. Bacteria are responsible for a large number of diseases in plants, animals and humans.



Answer 2
Answer:

Answer:

A unicellular prokaryote

Explanation:

Related Questions

In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that supported it in a book called On The Origin of Species. Which of the following is the scientific term is used to describe a testable model that seeks to explain natural phenomena? a) data b) hypothesis c) observation d) theory
Petroleum and coal can be mined from the continental shelf. True or false
Please help and explain!! Rain water has always been somewhat acidic. true or false
Which of the following is not a vascular plant?conifer fern moss flowering plant
Which macronutrient is vital for every function of the body? A.waterB.fatsC.proteinsD.carbohydrates

Smoking and severe sunburn are linked to cancer
genetic disease
infectious disease
food poisoning

Answers

Smoking and severe sunburn are linked to cancer.Getting a severe sunburn could lead to melanoma skin cancer and smoking could lead to lung cancer.
So the answer you are looking for is A. Cancer

I hope this helps!
smoking and severe sunburn are linked to cancer

Replacing a nitrogen base with another is an example of what type of mutation?

Answers

Answer:

The answer is c substitution

How does the frogs vestigial thumb help survival?

Answers


Frogs have their way of avoiding the predators like camouflage, squirting the poisonous liquid out of their system and through their vestigial thumbs. This organ helps them by avoiding predation by stealth which makes them quiet and silent in moving so that predators won't notice them readily. 

Final answer:

The frog's vestigial thumb may provide some vestigial functions like clinging or handling prey. Like opposable thumbs in primates, it's a remnant from evolution, and may aid in survival-oriented activities or serve no current significant purpose.

Explanation:

The frog's vestigial thumb, much like opposable thumbs in primates, is believed to be a trait left over from previous evolutionary stages. While its function in frogs is not fully understood, it is suggested that vestigial structures like the thematic thumb could still retain some functional or minimal purpose, potentially related to clinging or handling prey. For example, in primates, the opposable thumbs and toes are an adaptive trait providing the ability to effectively grasp branches, cling onto surfaces, and hold objects which contributes vastly to their survival in arboreal environments.

Although in frogs the thumb likely doesn't grant the same mobility or dexterity as in primates, its presence may still aid in activities like feeding, movement, or escaping from predators. Also, it's important to note that not all traits are formed for survival or adaptive purposes and could be neutral or nonadaptive, serving no current significant function or benefit.

Learn more about Vestigial Thumb in Frogs here:

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Which of the following causes a precipitate to form

Answers

I think it may be atoms combining in a solution to form a salid. Not sure though, sorry.

A chemical change happens to form a precipitate

If a cell has 46 chromosomes, how many will it have after meiosis?

Answers

it will have 23 chromosomes after meiosis
If a cell has 46 Chromosomes, how many will it have after meiosis It would have 23 Chromosomes

In a particular plant,green seed color is dominant to yellow seed color if a homozygous green seed plant is crossed with yellow seed plant what percent of the offspring would be heterozygous

Answers

100%

GG x yy

Gy Gy
Gy Gy
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The symbiotic relationship between a flower and the insect that feeds on its nectar is an example ofa. mutualism because the flower provides the insect with food and the insect pollinates the flower.b. parasitism because the insect lives off the nectar from the flower.c. commensalism because the insect does not harm the flower and the flower does not benefit from the relationship.d. predation because the insect feeds on the flower.
]Which of these statements best explains the origin of life on Earth? Primitive plants were created from living molecules. Plant cells were formed by the destruction of fossils in rocks. Non-living molecules were transformed into bacteria by chemical processes. Reproducing molecules evolved into living molecules by biological processes.
Do predators really kill only the old and sick prey? What evidence is there for this statement
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