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babymother [125]
3 years ago
9

Only 9 and 10 have to be answered! Thank you.

Biology
1 answer:
loris [4]3 years ago
5 0

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.

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Subatomic particles in atoms that do not carry an electric charge are called
Serggg [28]
The correct answer is neutrons, they do not carry an electronic charge.

Hope this helps.
8 0
3 years ago
In active transport, molecules can be moved against their concentration gradient, what is required for this
babymother [125]

Answer:

Energy (in the form of ATP)

Explanation:

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6 0
3 years ago
Please answer all i need help quick
svet-max [94.6K]

Answer:

1. B

2. B

3. A

4. B

Explanation:

1. Species is smaller than kingdom, and domain isn't a group

2. Its kinda obvious

3. Not too sure on this one, but i think a is right

4. Pro means 'before nucleus', therefore it has no nucleus

3 0
3 years ago
Animals are distinguished from other groups of eukaryotic organisms in that they: (Select all that apply.)
RoseWind [281]

Answer: option A, B, C at correct

Explanation:

All animals have collagen. Collagen is found exclusively in all animals. It is the main structures protein that is found in the connection tissues of animals.

Animals do possess embryos that undergoes gastrulation where the digestive cavity and germ layers are formed, these then develop into certain tissue systems, organs etc

Animals are heterotrophs in that they are unable to symthesize their own food but rather depend on plants which are autotrophs for their food and they also lack cell wall which differentiates them from plants. Not all animals are mobile for example, sponges.

6 0
3 years ago
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