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devlian [24]
3 years ago
8

Which period had a special explosion of life forms?

Biology
2 answers:
fredd [130]3 years ago
7 0
Precambrian is correct answer
tiny-mole [99]3 years ago
3 0

Answer:

Explanation:

precambrian

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HELP!!! 25 POINTS! if the answer is right, ill make u brainliest
Varvara68 [4.7K]
The answer is B) Muscle fiber aka Fascicles this is what there called in the definition. 

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What is the difference between bioaccumulation and biomagnification?
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Bioaccumulation refers to the accumulation of a toxic chemical in the tissue of a particular organism.
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3 years ago
List two species that may be threatened by the construction of a solar power tower
DENIUS [597]

Answer: the question is incomplete,below is the complete question.

List two species that may be threatened by the construction of a solar power tower in the California Desert

The answers are, Desert torties, mountain yellow legged frog and Joshua tree.

Construction of a solar power tower in the California Desert will threaten the existence of Desert torties, mountain yellow legged frog and and Joshua tree.

Explanation: The construction of solar power towers in Mojave desert in California poses a threat to the existence of quite a number of plants.The Mojave desert houses the largest solar power plant in the world,creating the solar power tower will create job opportunities for people but at the same time endangering the existence of about 12 rare plants that are found in the region of which Desert torties, mountain yellow legged frog and Joshua tree are greatly included,these plants cannot co-exist with solar thermal mirror arrays,this brings a controversy between energy/electricity generation and wildlife/ecosystem conservation.

3 0
3 years ago
Help <br><br> someone that knows it
slamgirl [31]

Answer:

According to the image, the approximate QT interval is 0.4 seconds.

Explanation:

The QT interval is the space between the beginning of the QRS complex and the end of the T wave, which represents from the beginning of depolarization to ventricular repolarization.

Considering that the extandardized measurements of an EKG, where the paper circulates at a speed of 25 mm/s, 1 mm horizontal —measuring time— has an equivalence of 0.04 s.

In the image, there is 10 mm between the beginning of the QRS and the end of the T wave, so:

    0.04 seconds X 10 mm = 0.4 seconds.

Then, the estimated QT interval is 0.4 seconds.

7 0
3 years ago
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