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ladessa [460]
3 years ago
8

Identify the three main environmental problems.

Biology
2 answers:
mezya [45]3 years ago
6 0

Answer:

3 main enviornmental problems are pollution, climate change, and deforestation

Explanation:

Sholpan [36]3 years ago
3 0

Answer:

pollution and global warming and climate change

Explanation:

because it's bad for the animals if they eat the trash they will die. human activities have made global warming and climate change a global threat. the rising level of 02 and other greenhouse gases have caused an increases in average global temperatures , extreme weather events and rising sea levels and other negative changes

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If a branch is cut from a tree ,after some hours the stem remains firm explain<br> ?
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Answer:

The leaves no longer have water, which means that there is little osmotic pressure which keeps it turgid.

Explanation:

The stem still contains water because of the capillary action that occurs. However, since there is no strong attraction, the water cannot be pulled to the leaves.

4 0
2 years ago
Which of the following organisms was most likely the most recent common ancestor of all animals? a. multicellular algae b. multi
eduard

Answer:

b. multicellular fungus

Explanation:

In a recent study, it was discovered that there was a genetic relationship between multicellular organisms like protozoa and animals and fungi have a common ancestor as their ancestors had contact about 1.1 billion years ago.

Therefore, the organism that was most likely the most recent common ancestor of all animals is multicellular fungus

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2 years ago
A population of small fish lives in a lake with a sandy bottom. the major predator of these fish is a wading bird that hunts by
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The proportion of mottled fish will increase over time because of the construction company that dumps a load of gravel in the bottom of the lake which give it a mottled appearance that made the mottled fish invisible by their major predator which is the wading bird that hunts them by sight.

 





3 0
3 years ago
What would happen if the number of plants in a room where increases from 20 plants to 100 plants?
Nadya [2.5K]
I think you’ll be able to be able to breathe better
8 0
3 years ago
Describe the structure of a neuron. Include the cell body, dendrites, and axon in your description. How does the structure of a
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Answer: A neuron has three main parts: dendrites, an axon, and a cell body or soma , which can be represented as the branches, roots and trunk of a tree, respectively. A dendrite (tree branch) is where a neuron receives input from other cells. Dendrites branch as they move towards their tips, just like tree branches do, and they even have leaf-like structures on them called spines.

The axon (tree roots) is the output structure of the neuron; when a neuron wants to talk to another neuron, it sends an electrical message called an action potential throughout the entire axon.

The features of neurons help them to carry out their function efficiently:

they have a long fibre (axon) so they can carry messages up and down the body over long distances

in a stimulated neuron, an electrical nerve impulse passes along the axon

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at each end of the neuron are tiny branches (dendrons), which branch even further into dendrites - the dendrites receive incoming nerve impulses from other neurons

Explanation:

Hope this is helpful!!

4 0
2 years ago
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