What are the stuctues and functions of cell organelles, and how do theg mantain homeostasis?

Answers

Answer 1

Answer:

A nucleus is a membrane‐bound organelle in eukaryotic cells that functions to maintain the integrity of the genetic material and, through the expression of that material, controls and regulates cellular activities.

Answer 2

Answer:

Related Questions

A mushroom gains its energy by decomposing the tissues of dead organisms. Should mushrooms be classified as autotrophs, heterotrophs, in both groups, or in neither group, and for what reason?
ng cells require constant access to energy in order to remain alive. Which statement BEST describes why cells need a constant supply of energy? A) Without energy, cells would not be able to access food resources. B) Without energy, cells would be forced to enter into a state of dormancy. C) Energy is required to process genetic information--without an active DNA molecule, cells will be unable to function. D) Energy is required in order to maintain homeostasis--without a constant, organized internal state, the cell will die.
How does carbon dioxide level affect oxygen production
The Milky Way is held together by a black hole's gravitational force. Since the stars near this black hole move at a high speed, what can youinfer about the black hole?A. Its locationB. Its sizeC. Its depthD. Its speed
A forest is cut down to make room for a housing development. Which population is most likely to survive? A. raccoons, which can eat a variety of foods B. woodpeckers that need to nest in a particular tree C. large predators that need to hunt over a wide area D. salamanders that hibernate in rotting logs

Why are mass extinctions important to geologic time?

Answers

Mass extinctions are important to geologic time because they wiped out many species all at once, and using the dinosaurs as an example, it causes new life forms or new ways of evolution to come about.

10. What happens to atmospheric pressure as a person rises in altitude?O A. It decreases
O B. It's unaffected by changes in altitude,
O C. It increases
OD. It changes based on the time of year.
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Answers

Answer: A: Decreases

Explanation: The pressure is the ratio of the weight of the air to unit area. So, as the height increases, the pressure decreases.

The answer is a as it decreases when someone rises in altitude

Why can't plants and animals use the nitrogen directly from the atmosphere?Answer
A.There is not enough of it in the air.
B.Nitrogen gas contains the element in an inert, unusable state.
C.They do use it directly from the atmosphere.
D.Plants and animals do not need nitrogen for their life processes.

Answers

The answer is C, because of the nitrogen cycle.

I would think it is B...

2 adaptari ale pelicanului la mediul acvatic

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1. Adaptation processes occur to help species survive and thrive in the ecological balance of life.
2. Structural adaptations are physical features of an organism that adapted through time. An example of this are the bills of a bird and the fur of bears that they generally need for their survival; birds for hunting, and bears to protect them from low climate areas.

Sulfur trioxide is a covalent compound. Which is the chemical formula for sulfur trioxide? A. SO3 B. (SO)3 C. S3O D. S3O3

Answers

Answer:

Sulfur trioxide is a covalent compound. Which is the chemical formula for sulfur trioxide? A. SO3 B. (SO)3 C. S3O D. S3O3

Explanation:

Sulfur trioxide = SO3, is a chemical class that, however, is composed of sulfur and oxygen atoms.

The answer is: A. SO3.

The formula for Sulfur Trioxide is A. SO3

This plant cell has an angular shape, unlike an animal cell, which is rounded. What two plant cell features help give this cell its shape?A) cell wall and DNA
B) cell wall and large vacuole
C) cell membrane and cytoplasm
D) cell membrane and many vacuoles

Answers

Answer:

B) cell wall and large vacuole

Explanation:

A plant cell has tough and rigid cell wall made of cellulose. Presence of cell wall imparts the plant cells a definite angular shape. The angular shape is also the result of presence of large vacuole in the center of the plant cell. The vacuole is filled with water and electrolytes and serve to determine the shape of the plant cell.

You know that there is a difference between plant cells and animals cells. The plant cells have a cytoplasm while the animal cells do not. Therefore the answer must be C.

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Which best describes the age structure of a population with zero population growth?4 The majority of people are of prereproductive ages in a broad-base pyramid age structure diagram.The age-structure diagram would be narrow at the bottom and top with a broader middle.The age structure would be broad at the top in postreproductive ages and narrow downward in an inverted pyramid.The age-structure diagram would be column-shaped with all age classes approximately equal.

In each trial, you will add an indicator to themystery food sample. But you will also add theindicator to a known substance and water. Why isthat important? Check all reasons.