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Pie
3 years ago
5

4. What are carbon dioxide levels now? How often in the past 650,000 years have they been that high?

Biology
1 answer:
fgiga [73]3 years ago
4 0

Answer:

Explanation:

Scientists at the Mauna Loa observatory in Hawaii say that CO2 levels in the atmosphere now stand at 387 parts per million (ppm), up almost 40% since the industrial revolution and the highest for at least the last 650,000 years.

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Will mark brainliest
MariettaO [177]

Answer:

Well , I think the answer is B

This represents a closed system,and one benifit is that the risk of passing disease between other species is lower than in open system

But still I prefer you to check it out in your book

6 0
3 years ago
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Why is the axon of a ganglionic neuron called a postganglionic fiber?
ivolga24 [154]

Away from the ganglion The axon of a ganglionic neuron is called a postganglionic fiber because it carries impulses. an accumulation of extracellular fibrillar proteins and abnormal dendrites and axons.  A “ganglion” is essentially a living relay. The inputs are “pre-ganglionic” and the outputs are “post-gangionic.” Simple.

7 0
3 years ago
Which is true of high resistance wires?
EastWind [94]
B. The thinner a wire is, the more resistance is will have.
8 0
3 years ago
What type of chromosomal abnormality can lead to multiple copies of a gene, some of which can incur mutations that can lead to t
koban [17]

A trisomy is a chromosomal condition characterized by an additional chromosome. A person with a trisomy has 47 chromosomes instead of 46.

Trisomy means the presence of an extra chromosome in some or all of the body's cells. This results in a total of three copies of that chromosome instead of the normal two copies. For example, Down syndrome (trisomy 21) is caused by having three copies of chromosome 21 instead of the usual two copies.

This genetic condition is the result of a genetic mutation where your cells don't divide as they should. You can't prevent this abnormality from happening during cell division.

To learn more about trisomy here

brainly.com/question/15114915

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4 0
2 years ago
During the stage of a plant's life cycle where it is a haploid structure, the body of the plant is correctly referred to as a(n)
olganol [36]

Answer:

The haploid structure of the plant, during a stage in plant's life cycle, is known as the <u>gametophyte.</u>

Explanation:

The life cycle of plants includes a haploid generation and a diploid generation. Both the structures are multicellular.

The diploid structure of a plant is known as sporophyte. This structure produces spores via meiotic division.

Whereas, the haploid structure of the plant, known as the gametophyte, is formed from spore and produces haploid gametes.

6 0
3 years ago
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