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LiRa [457]
3 years ago
7

A __________ is a set of parts that function together as a whole. A) biosphere B) climate zone C) system D) habitat

Biology
1 answer:
klio [65]3 years ago
7 0

C) a system is a set of parts that function together as a whole

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All parts of nonvascular plants must be near water because they have…
tiny-mole [99]

Answer:

B) Tiny roots.

Explanation:

:)

(:

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Hope this helps!

<3

-Josh

brainliest if correct?

7 0
2 years ago
Using at least 3 steps explain how to make a wet mount slide with an Elodea plant​
Masja [62]
Step One - Obtain a clean microscope slide.

Step Two - Place a drop of liquid on the slide. This is the “wet” part of the wet mount. The liquid used depends on the type of cell being viewed:
If examining a plant cell, tap water can be used.
If examining an animal cell, physiological saline (or contact lens solution) must be used, because if plain water is used, the cell will explode from osmotic pressure. Unlike plant cells and bacteria, animal cells have no cell wall to structurally support them.

Step Three - Obtain the specimen to be used. Some introductory biology classics for viewing include:
Skin of an onion bulb: In order to view the cells, a very thin layer of skin must be obtained. Take a single layer of onion and bend it towards the shiny side. After it snaps, pull gently, and a transparent layer of skin, similar to Scotch tape, will appear.
Elodea leaf: Elodea leaves are two cell layers thick. The cells in one layer are smaller than the cells in the other, so elodea leaves can be used to better understand a microscope's depth of field.
Cheek cells: Human epithelial cells can be obtained by gently rubbing a toothpick on the inside of the mouth, and then swirling the toothpick in the physiological saline on the slide.
Pond water: Obtaining some water from a pond makes wet mount preparation a breeze, since the water and the specimens are both included.
Hope this helps
8 0
3 years ago
_____are commonly called producers
defon

Answer:

Autotrophs

Explination: They are called this because they use the energy and simple inorganic compounds to produce organic molecules.

5 0
3 years ago
From what you should now know about bacterial taxis and nodule formation, predict how a rhizobium would respond to a flavonoid.
andreev551 [17]

Answer;

-The bacterium would exhibit positive chemotaxis.

Explanation;

-Chemotaxis is the movement of cells or organisms in response to chemicals, whereby the cells are attracted (positive chemotaxis) or repelled (negative chemotaxis) by substances exhibiting chemical properties.

Flavonoids play a crucial role as signal molecules in promoting the formation of nodules by symbiotic bacteria commonly known as rhizobia. The roots of leguminous plants use positive chemotaxis to attract rhizobia. Flavonoids are the chemicals associated with attraction of Rhizobium bacteria.

6 0
3 years ago
Read 2 more answers
How do rivers affect the land they flow through
Minchanka [31]

River water contains minerals and nutrients that can be beneficial to plants on the land, helping them to grow.

4 0
3 years ago
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