Answer:
The answer is 9.
Explanation:
There are dominant and recessive genes for both the hair color gene and the gait gene in horses, B, b, T and t respectively.
If a black trotter is heterozygous that means it's genotype is going to be Bb and Tt, therefore it will possess both dominant and recessive genes for the two traits.
The allele combinations in the gametes it produces can be BBTT, BBTt, BBtt, BbTT, BbTt, Bbtt, bbTT, bbTt and bbtt .
I hope this answer helps.
Answer:
Four (4). BT, Bt, bT and bt
Explanation:
The hair color has two alleles, dominant B for black and recessive b for chestnut.
The gait also has two alleles, dominant T for trotter and recessive t for pacer.
Heterozygous black trotter will have the genotype BbTt.
Gametes usually have half the amount of allele of the parents
BbTt can have the the following allelic combination in its gamete: BT, Bt, bT and bt.
Hence, there are four (4) possible types of allele combinations for the two traits and they are BT, Bt, bT and bt.
You can see the attached image for the Punnet square analysis of the gametic alleles.
b. False
Answer:
B. False
Explanation:
Life history characteristics and survivorship patterns within a species are pre-set but may be changed according to the changes in environmental conditions needed for growth and reproduction. Allocation of energy to reproduction or other processes varies according to food availability, temperature, rainfall, etc.
Abundant resource availability favors the production of a large number of smaller offspring while limited resources make a population to produce a small number of larger progeny to increase the survival rate.
Example: Clutch size in birds is adjusted to obtain the maximum survival of progeny.
150,000
1.5 million
10 million
The number of currently described species on the planet is about: C. 1.5 million.
A species can be defined as a biological classification of related organisms that have similar characteristics and they are capable of breeding with one another in a cycle.
Some examples of species of various organisms include the following:
In conclusion, there are currently about 1.5 million species on planet Earth.
Read more on species here: brainly.com/question/15971107
Answer:
The correct answer will be option- 1.5 million.
Explanation:
Biodiversity refers to the variety of species and ecosystem present on the earth in which they are part of it. The biodiversity comprises of three components: species diversity, ecosystem and genetic diversity.
The number of species present on this planet is found to be around 1.5 million in which 17,000 new species are being added to the existing number.
Thus, option- 1.5 million is the correct answer.
Answer:
The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
Explanation:
Answer:
Towards the southern of the sound
Explanation:
As the motion of the source of sound is moving,the percieved sound frequency varies .this is known as Doppler effect.the sound waves emited by the sources tends to bunch up in front of the source and spread out behind the source.
Since the falcon is moving towards the sound,the frequency increases and so does the pitch of the sound
b. crustaceans
c. zooplankton
d. sponges
The creatures that do not gain energy from marine snow either directly or indirectly are known as Zooplanktons. Thus, the correct option for this question is C.
Zooplankton may be defined as an organism that is small floating or weakly swimming in nature anddrifting with water currents and, with phytoplankton, making up the planktonic food supply upon which almost all oceanic organisms are ultimately dependent.
The creatures of zooplankton are ultimately deriving their energy by consuming phytoplankton. So, among the options given, they are the creatures that do not gain energy from marine snow either directly or indirectly. While rays, crustaceans, sponges, etc. gain energy from marine snow either directly or indirectly.
Therefore, the creatures that do not gain energy from marine snow either directly or indirectly are known as Zooplanktons. Thus, the correct option for this question is C.
To learn more about Zooplanktons, refer to the link:
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