Soaring is a science when birds remain airborne and moving without flapping their wings. They are maintaining thrust and gliding downward but staying aloft
Soaring birds is where the birds can maintain flight without wing flapping, because they using rising air currents. Many gliding birds are able to lock their extended wings by means of a specialized tendon. Some land birds such as vultures and certain hawks, sustain flight for long periods without flapping their wings.
For example soaring California Condor spreads its primary feathers so that each acts as a small, high-aspect-ratio wing. This reduces turbulence at the wingtips and helping the condor to stay aloft circling slowly in thermals.
Vultures have a low aspect ratio (ratio of length to width of the wing) which generally produce a lot of drag. Vultures overcome the problem of by flying with their primary feathers extended, creating slots between them. Each primary serves as an individual high-aspect-ratio wing. This high-aspect-ratio reducing wingtip turbulence and lowering the stalling speed of the wings. This helps vultures to circle in thermals, maintaining thrust by gliding downward, but staying aloft by sinking at a rate slower than the hot air rising.
Grade: 9
Subject: biology
Chapter: animals
Keywords: birds
If the base sequence on a DNA molecule is ATC then UAG will be the mRNA sequence.
The four nucleotides found in mRNA — A, U, G, and C — can be combined in a total of 64 different ways because codons are three-letter structures. These 64 codons are made up of 61 amino acid codons and three stop signal codons, which signal the completion of protein synthesis.
A codon is a specific sequence of nucleotides on an mRNA that denotes either a stop signal during protein translation or a specific amino acid. A nucleobase (also known as base), a sugar, and a phosphate group make up a nucleotide.
To learn more about mRNA codons, refer to:
#SPJ2
The DNA molecule is composed of two long complementary chains of nucleotides. The complementary DNA sequence of CGTA is GCAT.
The DNA molecule is composed of two antiparallel strands of nucleotides linked together by hydrogen bonds.
In DNA, there are four types of nucleotides, each containing one different nitrogenous base (i.e., Adenine, Guanine, Cytocine and Thymine).
In RNA, Thymine bases are replaced by Uracil bases.
According to the base pair rules, Adenine (A) always pairs with Thymine (T), whereas Cytosine (C) always pairs with Guanine (G).
In conclusion, the complementary DNA sequence of CGTA is GCAT.
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Explanation:
The complementary DNA strand of the sequence ATGC will be TACG. The complementary base pairing in DNA is as per the...
They will gather qualitative data using a meter stick and a graduated cylinder
B) A meadow replacing a pond in its flood plain.
C) A climate gradually changing over many eons and becoming colder.
D) The replacement of a native species of animal with an invasive species.
Answer:
its b
Explanation:
They contained toxins or pollutants that eliminated natural competitors of the zebra mussel.
They contained few or no natural predators of the zebra mussel.
They contained few or no natural species occupying the niche filled by the zebra mussel.
Answer:
They contained few or no natural species occupying the niche filled by the zebra mussel.
Explanation:
All the available options are capable of contributing to the success of the zebra mussel in the United State water.
However, it is not true that the United State water contained few or no natural species occupying the niche filled by the zebra mussel. The zebra mussel are exotic species that got into the United State water around 1991 and were able to outcompete the native species and multiply rapidly, a characteristic of an invasive species.
Abundance of prey for the zebra mussel will ensure that their population thrives due to adequate availability of food.
The presence of toxins or pollutants that eliminate natural competitors of the zebra mussel will enable their population to thrive due to lack of competition for resources, provided the toxins/pollutants are not toxic to the zebra mussels themselves.
The presence of few or no natural predator will also enables the population of zebra mussels to thrive because that is another limiting factor removed.