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saul85 [17]
3 years ago
6

A ______________ causes a living organism to react. A) population B) stimulus C) system D) variation

Biology
1 answer:
Nuetrik [128]3 years ago
5 0

B is the proper answer for this question.

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Which could be referred to as secondary growth of stems?
Neko [114]
Answer - An increase in the width of Stem

(Was answered before in the community)
Credit goes to [PeachSoda]

Reasoning Why I agreed - Plants can grow in the root tips which shows the progression of growth and thats why you would find a lot more plant cells because it will always keep growing.
8 0
3 years ago
Please help me i don’t understand
Eddi Din [679]
1. Biogeography, the study of the geographic distribution of plants, animals, and other forms of life. It is concerned not only with habitation patterns but also with the factors responsible for variations in distribution.

2. weathering and other natural forces break down the substrate, rock, enough for the establishment of certain hearty plants and lichens with few soil requirements, known as pioneer species. These species help to further break down the mineral-rich lava into soil where other, less hardy species can grow and eventually replace the pioneer species. In addition, as these early species grow and die, they add to an ever-growing layer of decomposing organic material and contribute to soil formation. This process repeats multiple times during succession. At each stage, new species move into an area, often due to changes to the environment made by the preceding species, and may replace their predecessors. At some point, the community may reach a relatively stable state and stop changing in composition. However, it's unclear if there is always—or even usually—a stable endpoint to succession.

3. I don’t have the video so I’m going to take. Wild guess. Just look up types of finches

4. Broadly speaking, different species are unable to interbreed and produce healthy, fertile offspring due to barriers called mechanisms of reproductive isolation.
These barriers can be split into two categories based on when they act: prezygotic and postzygotic.

I tried my best hope this helps :)
6 0
3 years ago
Please read the article Why Cats Have Nine Lives by Jared Diamond. Our analysis did not attempt to
kupik [55]

The author assumes that the question can be answered by applying principles of anatomy, physics and evolutionary biology. First reason he suggests is that cats are small and they have a favourable mass-surface area ratio. Next, he suggests that cats have soft tissues that absorb the shock and they land on all four limbs, dividing the shock. This is because of their body shape and its centre of gravity. He says that felines have this kind of body structure (that canines lack) because years of falling from trees etc. has evolved their body in this way.

5 0
3 years ago
1. After meiosis, ________(#) cells are created?
Bezzdna [24]
Number one is sex cells are created
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3 years ago
How much does the earth weigh? ...
torisob [31]

Answer:     5.972 × 10^24 kg

Explanation:

5 0
3 years ago
Read 2 more answers
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