BIOLOGY MIDDLE SCHOOL

Why are all the different parts of the cell necessary

Answers

Answer 1
Answer: Each one performs a specialized task for the cell. If they were without even one, the cell would die.

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2.Patsy is studying different kinds of weathering. She has four pans full of dried modeling clay. Some she adds water to. Some she freezes overnight, then lets thaw, as summarized in the table below: PanAdded Water?Froze the pan?1yesyes2yesno3noyes4nono Then she compares the clay in all four of her pans. The clay in pan #4 was the same at the end of the experiment as it has been at the beginning. The clay in pan #1 had changed and broken up more than the others.  Which of the following conclusions could Patsy have made? Frozen clay takes up more space than thawed clay does. Adding water to clay and then freezing it breaks the clay apart more than either freezing it or adding water to it alone. Adding water to clay and then freezing it helps plants to grow in the clay more than either freezing it or adding water to it alone. Wet clay takes up more space than dry clay does.
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The main producers in aquatic environments are _______.a.
phytoplankton
b.
zooplankton
c.
kelp
d.
fish

Answers

The correct answer is a. phytoplankton.

Phytoplankton or microalgae are unicellular photosynthetic organisms.Dinoflagellates and diatoms are the two classes of phytoplankton. They float on the surface of the ocean water and are primary producer in the ocean. They provide food for marine animals such as whales, shrimp, snails and jellyfish. In presence of many nutrients in the ocean, phytoplankton may grow out of control to form harmful algal blooms.

If we can't see air can fish see water?

Answers

No, fish cannot see water like we cannot see air. Did this help?

great question ! i guess they don't, since we don't see air. And air is kinda like water for them, so I'd say no they don't see water.

In algae, cyanobacteria, and plants, chlorophyll a absorbs all colors of light except for A) red.
Eliminate

B) green.


C) blue.


D) yellow.

Answers

B. Green


Chlorophyll is found in and around the photosystems embedded in the thylakoid membrane of the chloroplasts.

The chloroplasts are organelles found in eukaryotic algae. The chloroplasts in eukaryotic celss are contained in the cytoplasm together with other organelles.

Since the chlorophyll is insided the chloroplast which is inside the cytoplasm, it is safe to say that the chlorophyll of the green algae is spread throughout the cytoplasm of its cells.

Answer:

b

Explanation:

How do a cell reproduce?

Answers

Cells reproduce for 3 reasons- to make new kinds of cells (gametes or more specialized cell types), for repair, and for growth. 
IF IT HELP YOU PLZ PICK AS BESTT!!!!

While excavating an area in the desert, a scientist discovers the fossils of very large tress and ferns. What might the scientists conclude about biomes in this area?

Answers

Large trees and ferns need water to survive. This suggests that the biome was once very different from the desert it is today. #globalwarming lol

Answer:

stay safe out there in 2020. hope your all safe. Have a bless day.

Explanation:

DESPERATE NEED OF HELP Is mass conserved when 10 g of sodium hydroxide undergoes a chemical change during an interaction with 57 g of copper sulfate? Use complete sentences to support your answer by explaining how this can be demonstrated.(i dont need to use mathematical support, just basic answers)

Answers

Conservation of mass states that "Mass cannot be created or destroyed".  In all reactions of a closed system, mass is always conserved.  So yes, the mass is conserved in this example
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