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dlinn [17]
3 years ago
14

The following table shows some characteristics of an eclipse which was observed from a certain location on Earth.

Biology
1 answer:
Aloiza [94]3 years ago
3 0
Part 1: The eclipse observed was a lunar eclipse. The sun is usually not visible during these eclipses. The moon is new during a solar, but full during a lunar. It is red during a lunar eclipse due to a reflection of the Suns light behind earth. It happens more often because Earths shadow is larger than the moons. The umbra is larger as well, so it lasts longer than a solar eclipse.

Part 2: The moon is in the full moon phase. The Earth is in between the Moon and the Sun. The umbra of Earths shadow is cast directly on the moon, casting out the suns light. A tint of the reddish color shines around earth from the Sun making the dark moon appear red. The moons axis is slightly tilted , so the umbra does not hit the moon every month. But when it does? It creates a lunar eclipse.
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Like all flowering plants, the snapdragon must be pollinated to reproduce, but its flowers are closed. A bumblebee has just enou
Lelechka [254]

Answer:

<h2>Coevolution</h2>

Explanation:

Coevolution : It is the influence of closely associated species on each other in their evolution, they affect each other.

In coevolution , two or more species reciprocally affect  evolution of  each other by natural selection.

 

Coevolution Examples:

There are lots of examples of coevolution, some are here

i) coevolution of Predator-Prey , this relationship is one of the most common examples of coevolution.

ii) coevolution of  Herbivores and plants,

iii)  coevolution of Acacia ants and Acacias and

iii)  coevolution of Flowering Plants and Pollinators and many others.

5 0
3 years ago
Polypeptides and proteins must fold properly to be functional. Hydrogen bonds between the oxygen and nitrogen atoms of the pepti
valkas [14]

Answer:

The correct answer is option 3. "secondary structure".

Explanation:

The secondary structure of polypeptide and proteins refers to the second order of folding, including common structures such as beta sheets, alpha helix, as well as turns and loops. The hydrogen bonds between the oxygen and nitrogen atoms of the peptide bonds are crucial to secondary structures, as these hydrogen bonds form and stabilize the aforementioned common structures.

4 0
3 years ago
Flatworms use a system of canals and tubes with the ______ as their excretory organ.
Kazeer [188]
<span>Flatworms use a system of canals and tubes with the mouth as their excretory organ. They belong to the Phylum Platyheminthes. </span><span>Flatworms can be cut in half creating two individuals by binary fission. Binary fission is a type of asexual reproduction in which the offspring has the same features and characteristics of the parent. During binary fission, the DNA replicates into two and goes at the end of each membrane. And then the cell membrane divides into two daughter cells. Then cytokinesis follow.</span>
6 0
3 years ago
Birds and mammals have a four-chambered heart, but most reptiles have a three-chambered heart. How does this fact affect the con
eduard

Answer:

The animals present body structure is due to evolution. It is seen in each part including the structure of the heart. The vertebrate heart becomes complex from a simpler form.  

Invertebrates, the heart of fishes is two-chambered having one auricle and one ventricle. The deoxygenated blood gets purified in the gills. They are aquatic and no lungs for breathing. The hearts pump a mixture of oxygenated and deoxygenated blood to the body.  

The amphibians and reptiles have 3 chambered heart as they lead terrestrial mode of life. The gills modified into the lungs.  The left auricle receives pure blood and the right auricle receives deoxygenated blood. The blood purified in the lungs and in the ventricle, both types of blood get a mix. The ventricle pumps the mixed-blood throughout the body.

In the case of birds and mammal, the heart is 4 chambered and the oxygenated and deoxygenated blood are separated. These two are higher vertebrates. No mix of pure and impure blood, the body receives only the oxygenated blood.

This shows to construct the phylogenetic tree of vertebrates - the fishes should be in the bottom, and above it amphibians, reptiles, then, mammals and birds on the top branch of the tree. As the chambers and structure of the hearts modified one after another.

6 0
3 years ago
How do the lipids allow the body to survive?
tiny-mole [99]
Lipids help allow the body to survive because they store energy, the insulate and protect, they help with digestion and absorption, they help with the cell wall structure and lastly, they help hormone production along.
7 0
3 years ago
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