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DerKrebs [107]
3 years ago
7

The Cretaceous-Tertiary extinction, the most famous of the Big Five, has been attributed to what major event(s) that triggered t

he extinction of the dinosaurs? an asteroid hitting the earth massive volcanoes erupting around the world rapid growth of forests on land surfaces falling sea levels increased competition from mammals
Biology
2 answers:
polet [3.4K]3 years ago
5 0

This question has a two part answer. The first part is that an asteroid hitting the earth and the second part is massive volcanoes erupting around the world.

inna [77]3 years ago
3 0

Answer:

The correct answers are "an asteroid hitting the earth" and "massive volcanoes erupting around the world"

Explanation:

The Cretaceous-Tertiary extinction was an event that take place approximately 66 millions years ago responsible of taking the life of about three-quarters of the plant and animal species on Earth. Two different events are the ones that contributed to this massive extinction: an asteroid hitting the earth and massive volcanoes erupting around the world. The asteroid was 10 to 15 km wide, impacted on Mexico's Yucatan Peninsula, and caused global environmental damage. This damage inlcude triggering the eruption of most active volcanos in the world.

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Calculate the frequency of homozygotes for an allele at a locus in a population at Hardy–Weinberg equilibrium if the frequency o
seropon [69]

Answer:

0.0225

Explanation:

According to the given information, the gene under study has two alleles. The frequency of one allele is 0.15. The locus is at Hardy–Weinberg equilibrium. This means that the sum of the frequencies of two alleles would be one. The frequency of homozygotes for an allele in the population is calculated as the square of the frequency of that allele.  

Therefore, if the frequency of one allele in the population is = 0.15. Frequency of homozygotes for this allele in the population would be = 0.15 x 0.15 = 0.0225

5 0
3 years ago
which of the following statements by the patient indicates the need for further teaching about anastrozole___.
Colt1911 [192]

The correct option is B :  I should not touch the pills with bare hands.  If a caregiver administers your medication, they should think about using gloves or administering the tablets straight from the bottle into the cap, a tiny cup, or your hand.

They shouldn't handle the pills in any way. The hands should always be washed before and after administering the drug.

People you help with drugs may come into close proximity with you. Indirectly, COVID-19 is spread by contacting a surface, an object, or the hand of an infected person after coming into close proximity to an infected person (within two meters).

To stop the spread of the virus, protect ourselves as workers, and ensure the safety of the individuals and families we support, it is crucial to take infection prevention and control precautions when providing medical support to people.

Learn more about to anastrozole visit here;

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Full Question :

which of the following statements by the patient indicated the need for further teaching about anastrozole

A. I should not touch the pills with bare hands

B. I may experience worse fatigue while taking this medication

C. I need to report any new pain or swelling in my legs

D. I can put anastrozole in a pill box with my other medications

5 0
1 year ago
Are organisms with one cell
Agata [3.3K]
An organism with one cell is a unicellular organism
An organism with more than one cell is a multicellular organism

"Uni"= one
"Multi"= more than one/multiple
3 0
3 years ago
Read 2 more answers
Convection currents for weather start from when the Sun heats up the air. true or false
kotykmax [81]

Answer:

True.

Explanation:

Convection currents for weather start from when the sun heats up the air because convection. Current is a form of heating where the lighter warm or less dense material rise above the denser or more dense material because the more dense materials cool and sinks downward giving rise to sea breeze. This convection current lead to circulation pattern on Earth

3 0
3 years ago
Choose one of the three fossil fuels – coal, oil or natural gas – and describe:
xxMikexx [17]

Answer:

coal is the source of energy and it is formed in the dark mines and there are the fossiles of the ancient tree and animals ect

2. we use the coal in everywhere coal is used in industry and also for petrol and this is very low source on earth

hope ur help and mark me brainlist

7 0
3 years ago
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