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marin [14]
3 years ago
8

What are the four main elements found in living things?

Biology
2 answers:
katrin2010 [14]3 years ago
5 0
I know that carbon is one
BaLLatris [955]3 years ago
3 0

The 4 main elements are:

1. Carbon

2. Hydrogen

3. Oxygen

4. Nitrogen

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By the end of the eighth week, the embryo, which is only 1 inch long and weighs just 1 gram, __________.
daser333 [38]

Given what we know, we can confirm that the statement in the question is in fact true, by the end of the eighth week, the embryo is only 1 inch long and weighs just 1 gram.

<h3>What else do we know about the embryo in this time frame?</h3>

During the first eight weeks, the embryo undergoes many changes. At this time:

  • The legs and arms have formed.
  • The fingers and toes are beginning to develop.
  • It begins to be called a fetus.
  • It is developing the lungs and lymphatic system.
  • and much more.

Therefore, we can confirm that the statement that by the end of the eighth week, the embryo is only 1 inch long and weighs just 1 gram, is in fact true.

To learn more about embryology visit:

brainly.com/question/1255159?referrer=searchResults

4 0
2 years ago
The body's nervous system is made up of the brain, the spinal cord, the retina, and many other nerves. The circulatory system is
lilavasa [31]
I believe the answer is D
6 0
3 years ago
Read 2 more answers
Name the part of brain responsible for controlling each activity
stich3 [128]

Answer:

The cerebellum.

Explanation:

The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.

7 0
3 years ago
Read 2 more answers
Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. In addi
ivolga24 [154]
This is a di-hybrid cross example. You can use a large punnet square to work out all the possible phenotype combinations in the offspring, however the shortcut is the 9:3:3:1 ratio. The phenotype outcomes of this ratio can be inferred directly with dominant alleles filling the 9 ratio. The 3 ratios are one dominant and one recessive for each of the two genes, and finaly the 1 ratio is recessive allele for both genes.

Like so:
9 Polka dot tail and long eye lashes
3 Polka dot tail and short eyelashes
3 Solid tail and long eye lashes
1 Solid tail and short eye lashes

The answer is D.


4 0
4 years ago
Are species diversity a part of biodiversity
8_murik_8 [283]

yes they are you are right

8 0
3 years ago
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