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ZanzabumX [31]
3 years ago
11

What is the smallest unit of matter that has characteristic properties of its elements

Biology
1 answer:
sveta [45]3 years ago
5 0

Answer:

That would be an "atom".

Hope this helps. :-)

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When one opens a door, which part of the brain is responsible for sending signals to the arm muscles, causing one to open the do
omeli [17]
Answer M1 motor cortex
4 0
3 years ago
Suppose the femur bone of an animal has 1,000 atoms of carbon-14 when the animal dies. How many atoms of carbon 14 will be prese
shtirl [24]

Answer:

After 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.

Explanation:

The half-life of a radioactive isotope of an element is the time taken for half the atoms present in a given amount of the element to undergo decay or disintegration. For example, the half-life of carbon-14 isotope is 5730 years. This means that, if there are 100 atoms of carbon-14 present in a given sample of a material, in the next 5730 years, approximately, 50 atoms of carbon-14 will be left in the material.

Since the half-life of radioactive isotopes are constant, these radioactive isotopes are used in the determining the ages of ancient life-forms as well as rocks.

In the given example, after 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.

8 0
3 years ago
During anaphase II in Meiosis, what major event takes place Question 26 options: Sister chromatids are pulled apart. Chromosome
baherus [9]

Answer:

The correct answer is A.) Sister chromatids are pulled apart.

Explanation:

This is because during Anaphase II in Meiosis, the sister chromatids are pulled apart.

Chromosome pairs line up during Prophase I. <em>Not B.</em> When the chromosome pairs pair up this is also Metaphase I. <em>Not C.</em> When chromosome pairs are pulled apart, Anaphase I is occurring.

Hope this helps,

♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥

8 0
3 years ago
A mutation is made once in every __________________ nucleotide copied.
aliina [53]

10^9 this is the answer


4 0
3 years ago
Which Kingdom is represented by the following description: All are multicellular organisms, reproduce sexually or asexually, can
natta225 [31]

Answer:

Plants

Explanation:

They are multicellular organisms. In plants there are two types of reproduction :- sexual and asexual. Sexual reproduction happens when androecium and gynoecium both fuses and in asexual reproduction when only androecium or gynoecium is present in a plant. Androecium us a male part off flower and gynoecium is the female part of flower. Plants can't move that we all know and they are autotrophs coz they can make their own food in presence of sunlight, water, air and chlorophyll.....

I hope u will understand it :-) :-)

6 0
3 years ago
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