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Name one thing that Darwin observed on the Galapagos Islands that supported his theory of evolution by natural selection

Answers

Answer 1
Answer:

Name one thing that Darwin observed on the Galapagos Islands that supported his theory of evolution by natural selection similar but not identical species of finches inhabited islands near the Galapagos.

What did Darwin observe in the Galapagos Islands?

In the archipelago, Darwin observed birds with different beak shapes, which he later discovered were all finches. Looking closely, he noticed that each beak shape helped in a way of feeding: wide and robust beaks for eating hard seeds, those more tapered for insects and larvae.

Darwin saw that variation and selection produced adaptations not only in the structure of the feet, but also in the shape and size of the beaks.

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Answer 2
Answer:

Darwin discovered that different species of finches lived on different islands. These different species had different looking beaks. Some meant for berries, some meant for nuts, and some meant for bugs.

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If you spilled a bottle of bleach in the laundry room and your mother smelled it in the living room, what would have taken place?osmosis
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diffusion

Answers

Answer:

Diffusion

Explanation:

The strong smell is diffusing from one part of the home to the other.

Chromosome iv in drosophila is a very small chromosome and carries a tiny amount of genetic material. fruit flies that are trisomic for chromosome iv have no apparent phenotypic abnormalities, and they retain their fertility. among the genes on chromosome iv is one for which a recessive allele ey produces the "eyeless" phenotype. a male that is trisomic for chromosome iv and has the genotype + + ey is crossed to a diploid eyeless female with the genotype eyey.

Answers

If I assume that random segregation of chromosomes takes place during spermatogenesis and all sperms are viable then I will take the male through meiosis.
The three chromosomes are +, +, ey
Then you double them into sister chromatids which is ++, ++, eyes.
If I consider all possible alignments during metaphase as, the three homologous pairs and gather at the metaphase plate.
Remember that any two of the three pairs will join together and odd pair out will line up at the metaphase plate with no partner pair.
There are three different arrangements which are possible for the three homologous pairs. 
Two of the three possible arrangements will segregate and make two sperm with +ey and two sperm with +. The other arrangement will segregate and make two sperm with ++ and two sperm with ey.
When meiosis is being done, then the sperm genotypes and their proportions are, 
1/3+ey, 1/3+, 1/6++, 1/6ey 

Today in class, a student asked whether the positive charge of the presequence of proteins being imported into the mitochondria was inhibitory for entry into the intermembrane space because of the positive charge present in this compartment of the mitochondria. How do proteins get past this? Wouldn't the net positive charge be inhibitory to import through the TOM complex?

Answers

Answer:

Mitochondrial proteins enter the organelle through channels formed by membrane proteins present in its inner and outer membranes.

Explanation:

All the biological membranes have lipid bilayer with the non-polar core that does not allow entry of charged and large substances. Mitochondrial proteins are synthesized in the cytosol and the unfolded proteins bind to the chaperons that deliver them to the receptors present in the outer mitochondrial membrane.

The receptor moves the protein to the membrane channels formed by integral membrane proteins of inner and outer mitochondrial membranes. The proteins enter the intermembrane space and are targeted to the inner membrane through channels while chaperons are left outside only.

he __________ system works with the nervous system to protect important organs such as the brain and spinal cord. A) skeletal B) lymphatic C) endocrine D) cardiovascular

Answers

The skeletal system since the brain is apart of the skeletal system.

Answer:

The correct answer would be skeleton

Explanation:

I  had the same question

9. The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again.

Answers

Answer:

his blood pressure is higher

Explanation:

Because your blood pressure is lower when rested because your blood doesnt need to go as fast when rested

Why is it important to wear a condom?

Answers

It is important to wear a condom during intercourse, because of various things. Preventing pregnancy, avoiding possible STD's, etc are all reasons to wear a condom during intercourse.

Hope this helps!
To prevent STD's, (Sexually transmitted diseases) and pregnancy.
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