All categories

3 years ago

What is the largest organelle in plants

2 answers:

7 0

The nucleus is often the largest organelle in a plant cell. It is enclosed by a double membrane called the "nuclear envelope". The nucleus serves to protect DNA information and is perforated with holes called nuclear pores. Inside the nucleus is a special structure called the nucleolus.

Serhud [2]3 years ago

7 0

Nucleus because pften largest in all plant and nothing really is as bih

You might be interested in

Where can you find ribosomes in the cell?

ziro4ka [17]

Answer:

Ribosomes are found 'free' in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER.

Explanation:

In a mammalian cell there can be as many as 10 million ribosomes. Several ribosomes can be attached to the same mRNA strand, this structure is called a polysome.

5 0

3 years ago

Which class of hydrocarbons contains at least one carbon-carbon triple bond?

butalik [34]

Answer:

Alkenes, A hydrocarbon with at least one carbon–carbon double bond that is unsaturated. An unsaturated hydrocarbon with at least one carbon—carbon triple bond between two carbon atoms is known as an alkyne.

Explanation:

8 0

3 years ago

Which of these observations illustrate the developmental plasticity of the human nervous system?

likoan [24]

When activity at a synapse correlates with the activity of other synapses, that synaptic connection is reinforced. A person suffering from phantom limb pain following amputation may stop feeling pain after viewing a reflection of the remaining limb in a mirrored box.

3 0

3 years ago

Which main-sequence on the Hertzsprung-Russell diagram are the least massive?

xxTIMURxx [149]

The Hertzsprung-Russell diagram is one of the most important tools in the study of stellar evolution. Developed independently in the early 1900's by Ejnar Hertzsprung and Henry Norris Russell, it plots the temperature of stars against their luminosity (the theoretical HR diagram), or the color of stars against their absolute magnitude

Depending on its initial mass, every star goes through specific evolutionary stages dictated by its internal structure and how it produces energy. Each of these stages corresponds to a change in the temperature and luminosity of the star, which can be seen to move to different regions on the HR diagram as it evolves. This reveals the true power of the HR diagram – astronomers can know a star’s internal structure and evolutionary stage simply by determining its position in the diagram.

The Hertzsprung-Russell diagram the various stages of stellar evolution. By far the most prominent feature is the main sequence (grey), which runs from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) of the diagram. The giant branch and supergiant stars lie above the main sequence, and white dwarfs are found below it.

3 0

4 years ago

Read 2 more answers

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes woul

slega [8]

Answer:

Option D, only II, III, and IV

Explanation:

Complete Question

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

I) Keystone predators have a marked effect on species diversity.

II) Green plants produce the oxygen we breathe.

III) The presence of land plants builds soil.

IV) The presence of diverse wetlands helps in flood control.

A) only II and IV

B) only I and III

C) only I, II, and IV

D) only II, III, and IV

Solution -

The services of ecosystem has been classified into four groups

a) Provisioning – Where essential abiotic and biotic substance are produces such as production of food and water, reproducing offspring etc.

b) Regulating – the ecosystems is controlled through environmental factors such as control of climate and disease

c) Supporting – Ecosystem support the activities that are essential for survival. Primarily includes all nutrient cycles, oxygen generation etc.

d) Cultural – Provide aesthetic view and recreational benefits

Option II co mes under supporting service of ecosystem

Option III co mes under Provisioning service of ecosystem

Option IV co mes under Regulating service of ecosystem

Hence, option D is correct

5 0

3 years ago