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user100 [1]
4 years ago
13

What type of organism makes up the oldest known fossil?

Biology
1 answer:
choli [55]4 years ago
8 0
Blue-green algae from South Africa at 3.2 billion years old.
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Will the cell (circle) shrink or swell in this solution (beaker)?
spin [16.1K]

Answer:

75% H20

25% solute

Explanation:

Hypertanic. Isotonic. 75% 25% ... When a cell is placed in this solution, water will enter the cell by.

7 0
3 years ago
HELP WILL GIVE BRANLIEST AND EXTRA POINTS! (Question 4)
weqwewe [10]

Answer:

a

Explanation:

it has a soft outside

8 0
3 years ago
Nuri lives in an area where there is little rain and not many plants. The daytime temperatures can be much higher than nighttime
LUCKY_DIMON [66]
I thinl she lives in the desert

4 0
3 years ago
Read 2 more answers
In two or more complete sentences explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps.
Basile [38]
First of all you have to make both sides of the equation equal

KClO3 -------- KCL + O2

this is the way i would do it first

K - 1                K - 1
Cl - 1               Cl - 1
O - 3                O-2   From this we can see that the oxygen of both don't equal

So than from this we would need to find the common factor of the oxygen which is 6. So we would multiply 3 by 2 to get 6 as well as 2 by 3 to get 6.
The equation will now look like
K - 1                         K - 1
Cl - 1                        Cl - 1
O - 3 (2) = 6             O - 2 (3) = 6

so the final answere:

KCl2O3 --------- KCl + 3O2
5 0
4 years ago
Read 2 more answers
What type of muscle contracts and relaxes to control the movement of the contents?
Brut [27]

Smooth muscles are the type of muscle that contracts and relax to control the movement of the contents.

<h3></h3>

What are Smooth muscles?

Because it lacks sarcomeres and as a result, striations, smooth muscle is an involuntary non-striated muscle (bands or stripes). Its two subgroups are single-unit smooth muscle and multi-unit smooth muscle. A syncytium is the collective contraction of the sheet or bundle of smooth muscle cells that make up a single-unit muscle.

Smooth muscle makes up the walls of hollow organs including the stomach, intestines, bladder, and uterus as well as the blood and lymphatic vessels, as well as the tracts of the respiratory, urinary, and reproductive systems. The ciliary muscle, a type of smooth muscle present in the eyes, changes the shape of the lens by dilation and contraction of the iris.

To learn more about smooth muscles, visit:

brainly.com/question/9883108

#SPJ4

8 0
2 years ago
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