Identify a specific structure in a single celled organism. State how that structure is involved in the survival of the organism

Answers

Answer 1

Answer:

Pseudopodia in amoeba is a specific structure in a single-celled organism.

What do amoebas do to humans?

Multiple of those contaminated show no signs at all—the amoeba lives calmly in their gut, providing on bacteria without causing trouble.

But in others, the parasite attacks the gut itself and can cause potentially fatal diarrhoea, intestinal ulcers, and liver spots.

Thus, Pseudopodia in amoeba is the answer.

To learn more about amoeba click here;

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Answer 2

Answer: A flagellum, is a structure in single celled organisms that pave the way for movement. In sperm cells for example, they can transport themselves so quickly due to the rapid movement of the flagellum.

Hope this helped.

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Is Euglena a prokaryotic or eukaryotic organism? explain

Answers

The answer is "Euglena is an eukaryotic organism".

The main difference between prokaryotic cells and eukaryotic cells is presence of true nucleus and membraned organelles.Eukaryotic cells have true nucleus and membrane bound organelles such as chloroplasts, mitochondria, but prokaryotic cells have cyclic DNA instead of true nucleus and lack of membraned organelles.Euglena has a true nucleus and membrane bound organellessuch as chloroplast. Hence, Euglena is classified as eukaryotic organism.

A feild biologist is tracking the populations of lynx and rabbits in a predator-pray relationship. he displayed his data in a graph. what is likely to happen to the line showing the pray population if there is a rapid decline in the predator populationA.it will go down sharply
B. it will go up sharply then go down sharply.
C.it will go up gradually and then level them off
D. will continue to go up and down as it has
please help

Answers

Answer: C, It will go up gradually then and then level off.

Explanation: Without predators to hunt them, the prey population will rise until there is not enough food to sustain them all, meaning their population will cease to grow.

Choose all the answers that apply.Which of the following increases erosion?
clearing forests
leaving fields unplanted
careless farming
contour plowing
crop rotation
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Lost soil nutrients can be replaced through _____.
contour plowing
recycling
crop rotation
erosion

Answers

the first one is contour plowing

Answer:

First one is

-careless farming

-leaving fields unplanted

-clearing forests

And the second is

-crop rotation

Explanation:

What is the basis of the metric measurement system?A) Its measures are based on divisions that are powers of ten.
B) It is based on European measurement standards.
C) It is the only scientific measurement system.
D) It is based on the wavelength of krypton-86 radiation.

Answers

Answer:

The answer is:

A) Its measures are based on divisions that are powers of ten.

Explanation:

The explanation for why this is the answer is that it is true and obvious that the metric measurement system relies on certain divisions and prefixes that are based on the powers of ten such as "centi-" or "milli-". In short, the metric measurement system's basis is being able to have it's measures somewhat "altered" or "adjusted" by these particular prefixes to fit the item or subject or object being measured.

This food web represents a community along the coast of Alaska

Answers

Answer:

The correct answer is option A.

Explanation:

A food chain displays how every living organism gets its food, and how energy and nutrients are transfer from one to another.

Food webs exhibit the relation between plants and animals connection in different ways. A food web is a natural interconnection of a food chain in an ecosystem.

Thus, only option that match with the picture that is plant eaten by rock ptarmigan eaten by a bald eagle that is option A.

Answer:

the answer would be A

Explanation:

What is important in helping living things survive.Explain why living things need nitrogen.

Answers

Nitrogen makes up part of the proteins and DNA in our and other organisms cells.

Sunlight.
Living things need nitrogen because it forms a part of the proteins and DNA that are found in cells. Animals get nitrogen from eating plants and other animals and just like animals, plants require nitrogen to grow and survive.

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