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stira [4]
2 years ago
15

HELPPPP!!!! Changes in ecosystems can be attributed to natural causes, such as natural disasters, seasonal variations

Biology
1 answer:
qaws [65]2 years ago
4 0

Answer:

dam building, heavy industry, deforestation, irrigation, agriculture, infrastructure, construction, burning fossil fuels, mining, fishing, there is a few that is what I came up with for the ecosystems, and for the food chains and food webs hunting. Hunting interferes with the food chain because the predators are not getting what they want because humans are hunting. 

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Cell like this has just left the lungs. What colour will it be?
m_a_m_a [10]

Answer:

Within your blood, red blood cells have a specialized task. ... Your blood then transports carbon dioxide back to the lungs where you can ... They extend like tree branches into the lung.

Explanation:

HOPE IT HELP'S! C:

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7 0
2 years ago
PLEASE HELP ASAP (will give brainliest)
Paul [167]

Cladistics is a way of grouping the related branches based on sharing derived characters within the group. However these characters are not found in other species except by convergence. Phylogeny is a way of tracking evolutionary relationships based on shared characters based on artificially defined levels of taxonomy.

5 0
3 years ago
What structures do plants need that animals do not need? Why?
Alina [70]

Answer: a cell wall

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5 0
2 years ago
Which of these changes in today's world is a product of advances in biology?
Rom4ik [11]
<span>increased crop yields Because i looked it up lol
</span><span>
</span>
6 0
3 years ago
Some inbred strains of the weedy plant Arabidopsis thaliana flower early in the growing season, but other strains flower at late
RoseWind [281]

Answer:

a. Let us consider that L is responsible for late and l is responsible for early. From the mentioned data, it can be concluded that allele L or late is dominant over early. By crossing plants 1 and 4 we get the expected ratio of 3: 1, which shows that it follows Mendel's law of dominant.  

b. The genotype of all the four plants are:  

1st plant = Ll

2nd plant = ll

3rd plant = LL

4th plant = Ll

c. If the plant 1 is self-fertilized then the expected progeny will be 3 (late): 1 (early).  

In case if the 2nd plant is self-fertilized, the expected progeny will be only early.  

In case if the 3rd plant is self-fertilized, the expected progeny will be only late.  

In case if the 4th plant is self-fertilized, the expected progeny will be 3 (late): 1 (early).  

3 0
2 years ago
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