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shepuryov [24]
2 years ago
13

Which era is characterized by stromatolites as the most abundant fossil?

Biology
1 answer:
Novosadov [1.4K]2 years ago
7 0

Answer:

Precambrian

Explanation:

tromatolites were common in Precambrian time. Some of the first forms of life on Earth are recorded in stromatolites present in rocks 3.5 billion years old.

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Yes you need to call another ambulance because you need to take care of someone with a broken arm , head injury (also unconscious) you would need another ambulance to check on the pregnant woman and man with cuts and scratches.
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3 years ago
What do all carbonate minerals have in common?
mash [69]
They are on the periodic table
6 0
3 years ago
The polen grains in this plant causes asthama in man​
iragen [17]

Answer:

I hope this helps :)

Explanation:

Tree pollen is a common hay fever trigger. It’s the first pollen to be released during hay fever season, and levels are typically highest from late March to mid-May.

Around 95% of people’s hay fever is triggered by grass pollen, which tends to be highest between mid-May and July. In fact, there’s strong evidence that when grass pollen levels are high, people with asthma are more likely to need hospital treatment.

Hay fever can also be triggered by weed pollen, which is highest from the end of June until September.

Know your pollen triggers

You can be allergic to more than one kind of pollen across the year. Different pollens are released at different times, but our changeable weather makes it hard to predict exactly when. If you have hay fever symptoms all year round you might have non-allergic rhinitis.  

If you regularly get hay fever and take antihistamines, start taking them up to four weeks before you normally get symptoms. Starting them early means that when pollen starts being released, the medication has already built up in your bloodstream so you may be less likely to react.

If you usually use a steroid nasal spray, it can take up to two weeks to start working, so again, start using it before your personal pollen trigger is released.

7 0
3 years ago
Unlike an animals habitat, an animal's niche can be described by all of the following expect
BabaBlast [244]
An animals niche is its functional role in its ecosystem
8 0
3 years ago
How many chromosome would be found in dog gametes?
mezya [45]
In dog gametes, there are half the chromosomes contained in normal diploid cells. In the normal diploid cell of the dog there are 78 chromosomes, thus, in dog gametes, there are 39 chromosomes.
Similarly, in deer mouse brain cells there are 48 chromosomes since brain cells are diploid cells.
In gametes there are half of that number, so in deer mouse gametes there are 24 chromosomes.
7 0
3 years ago
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