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GenaCL600 [577]
3 years ago
5

Why was dark wing color advantageous for moths in the late 1800s in England?

Biology
2 answers:
Ivanshal [37]3 years ago
6 0
Back in the 1800's. There were 2 variations of moths. 1 with white and 1  with black. The black colored moths could blend in the with the coal mines to hide from predators. 
soldi70 [24.7K]3 years ago
5 0

Answer:

It offers camouflage and enable dark moths to avoid being predated.

Explanation:

<em>The dark wing color was advantageous for moths in the late 1800s in England because it enables them to perfectly camouflage and avoid the eyes of predators.</em>

Late 1800s in England is the era of massive industrial growth during which soot from industries covered the vegetation as a form of pollution in the environment.

Th dark bole of trees easily exposed white wing color moth to bird predator as white on black is easily discernable in the environment.

<em>However, the dark wing easily blends with the dark bole color of trees in the environment and makes it difficult for preying birds to see.</em>

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You have to choose between playing a team sport and taking music lessons because the practices overlap. what economic concept do
trapecia [35]

Time is scare is the economic concept this dilemma demonstrate.

<h3>Why Time is scare?</h3>

The time is scare because there is an over lap between the team sport or doing the music instruction. This demonstrates that there is not enough time to meet demand.

Two of the tasks require more time than is available. Both team sports and music courses cannot be played because of the lack of time.

Although there is a strong need for time, two things cannot happen at once. The need for time is great, but there is nothing one can do about it; she must choose between the two options presented.

To learn more about Time is scare visit:

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2 years ago
What is one essential amino acid which cats cannot produce but dogs can?
fgiga [73]
The essential amino acid for cats but not dogs is taurine. Taurine is an amino acid that is essential in the process of metabolizing fats. Cats need twelve essential amino acids compared to eleven needed by dogs. The deficiency of this amino acid is most diagnosed in cats ad it generally leads to blindness, deafness and heart failure in felines. 
7 0
3 years ago
Label the diagram: (parts of a frog)
Rainbow [258]
Frogs are amphibians, living both on land and in water. Their anatomy is very unique. Their bodies are similar to humans in that they have skin, bones, muscles, and organs. The body of a frog can be divided into a head, a short neck, and a trunk. The head contains the brain, mouth, eyes, ears and nose. The frog's head movement is limited due to the short, almost rigid neck. The trunk of a frog forms walls for a single body cavity known as the coelom. The coelom holds all of the frog's internal organs. Frogs have the same kinds of organs as humans and the same organ systems. For example, frogs have a long, sticky tongue which they use to capture food. They also have teeth, which unfortunately are very weak and rather useless. Humans have tongues and teeth as well (and a mouth of course).



If you closely examine the head of a frog, you will find the following: eye sockets, eyes, mouth, tongue, vomerine teeth, maxillary teeth, gullet teeth, external nostrils, internal nostrils, the glottis opening, eustachian tube openings, the tympanic membranes and the esophagus. The eyes, the mouth and the nostrils are all examples of a frog's external structures. In addition, a frog's external structures also include the webbed feet and the cloaca opening. The tympanic membranes or eardrums are exposed, but a frog does not have external ears. The internal structures of a frog include: the heart, the lungs, the kidneys, the stomach, the liver, the small intestine, the large intestine, the spleen, the pancreas, the gall bladder, the urinary bladder, the cloaca, the ureter, the oviducts, the testes, the ovaries and fat bodies. Again, the frog has organs that are similar to those of humans. For example, a frog has a brain, kidneys, lungs, eyes, a stomach, intestines and a heart. The one major difference between the anatomy of a frog and that of humans is that the is simpler than the anatomy of a man. Frogs don't have ribs or a diaphragm. Humans have both and a diaphragm (thoracic diaphragm) plays an important function in breathing and respiration. Breathing takes oxygen in and carbon dioxide out of the body. Respiration is the process by which our cells are provided with oxygen for metabolism and carbon dioxide, which is produced as a waste gas, is removed.


A frog uses its tongue for grabbing prey. The vomarine and maxillary teeth are used for holding the prey. The internal nostrils are used by the frog for breathing. The tympanic membrane is the eardrum. It is located behind the frog's eyes. The eustachian tubes equalize the pressure in the frog's inner ear. The glottis is a tube, which leads to the lungs, while the esophagus is a tube which leads to the frog's stomach. The stomach helps the frog break down food and the liver also helps with digestion (it makes bile). Bile (also known as gall) is a fluid secreted by hepatocytes from the liver of most vertebrates (humans and frogs are vertebrates). Hepatocytes are cells present in the liver, and they initiate the formation and secretion of bile. In many species, bile is stored in the gall bladder between meals. When eating, the bile is discharged into the duodenum. Bile, therefore helps with digestion. The duodenum, which is the first and shortest part of the small intestine, is responsible for the breakdown of food in the small intestine. Most chemical digestion takes place in the duodenum. The small intestine absorbs nutrients from food. The large intestine absorbs water. It also collects waste. You can also think of the cloaca as storing waste, as this part of the frog collects eggs, sperm, urine and feces. The cloaca (opening) is also where sperm, eggs, urine, and feces exit the frog's body. The spleen stores blood, while the kidneys filter the blood. The ureters carry urine from the kidneys to the bladder. The (urinary) bladder stores urine. The testes make sperm, while the ovaries makes eggs and the eggs travel through the oviducts.



A frog's skin is always moist. It is made up of two layers, an outer epidermis and an inner dermis. In addition to protecting the frog, the skin also helps the frog breathe. A frog will take in oxygen from the water through their skin. The oxygen in the water passes through their skin and goes directly to their blood. Frogs also have a pair of lungs which allows them to breathe when on land. A frog has very few bones. They make up the skeleton of the frog. The skull (head bone) is large and flat. The legs are long for jumping. In addition to being specialized for jumping, the bones in their upper and hind legs are also specialized for leaping. The muscles move the skeleton of the frog. The muscles help the frog jump and swim.

Now that we know the basics of frog anatomy, let's move onto the
5 0
3 years ago
Part i
evablogger [386]

Answer:

              1. When a rubbed ruler is brought close to the paper, salt and pepper they are not equally attracted as paper is lighter than pepper and salt, so it takes less effort for paper to overcome the force of gravity.

2. electrostatic induction is a phenomenon in which static electricity is generated in an object by bringing an electrically charged object near it. When a charged object is brought near to an uncharged body it causes electrical charges to redistribute in the body, resulting one side having excess of positive charges and other side having negative charges, as a result body become charged.  Electrostatic interaction also depends upon the nature and mass of body.  

b. the combination of fur cloth and rubbed ruler produce greatest effect. The reason is that when ruler is brought near to fur excess of electron will flow into fur.


7 0
3 years ago
Why is it necessary for the pancreas to secrete a high ph (basic) solution into the small intestine?
storchak [24]
It is necessary for the pancreas to secrete a high pH solution into the intestine in order to neutralize the acidity of the processed food particles [chyme] that are passed into the intestine and to provide a suitable pH for the enzymes in the intestines that will act on the processed food particles. 
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3 years ago
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