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VARVARA [1.3K]
3 years ago
5

Biology S1 Unit 1 Post-Test Study Guide

Biology
1 answer:
Arturiano [62]3 years ago
3 0

Answer:

Explanation: an independent variable is something you purposely change. And the effects that happen when you change the independent variable is called the dependent variable.

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Summary for mutations
Talja [164]

Answer:

A mistaken change in DNA sequencing or coding that could be harmful, not noticed or beneficial

Hope this helps!

4 0
3 years ago
Only 9 and 10 have to be answered! Thank you.
loris [4]

9: Well big groups of birds are often found competing for food, causing fights and even death due to the fight. If a flock of birds from population A goes to population B, there would be more competition due to birds wanting food and nesting places that are good.

10: Many species evolve to suit environmental changes, but let's say this change in the environment was bad. Pollution, species of aggressive animals, which would eat the food the animals need and cause a downgrade in food leaving the area bare, and hunting, which would bring humans to the area and cause them to camp out, eat the animals and wild vegetables, such,   can cause negative population changes. Due to these things birds could get sick and die off, causing population to go down. If trash and sewage are not cleaned up it could affect the birds food source and cause it to be bad for a long time, the aggressive animals would kill and eat the birds causing a continuous spiral of death, and hunting could cause them to die.

5 0
3 years ago
1. Tina is a microbiology student using an HOL kit for her online course. She shares a small apartment with her two cats, and ha
ad-work [718]

Answer:

A cabinet and a small closet.

Explanation:

A cabinet and a small closet are the best locations to incubate cultures because these location are safe from the cats interaction with the microbial culture. A cabinet consist of a cupboard with shelves or drawers for storing things. Closet is a tall cupboard which is used for storage things so due to height the cats can't reach to these place so the culture is safe.

4 0
3 years ago
which type of bond forms between an anion and a cation? A. nonpolar covalent B. ionic. C. polar covalent. D. hydrogen
Umnica [9.8K]

Ionic forms between an anion and a cation.

6 0
3 years ago
Read 2 more answers
what kind of ecosystem can this possibly be a freshwater ecosystem be Marine ecosystem sea grassland ecosystem none of the above
vivado [14]

The correct answer is: [C]:  

__________________________________________________

        →  " grassland ecosystem " .

__________________________________________________

{Since the organisms you mention:

 "zebra, lion, raccoon , grass, rat, Cricket crow" occur in the "grassland ecosystems" of Africa ; according to the following "food web" (diagram).

__________________________________________________

Hope this helps!

  Best wishes to you!

__________________________________________________

6 0
3 years ago
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