Answer:
After the flood the total number of beetles = number of beetles per hectare × 115 hectares = 8,855 beetles.
The carrying capacity is 14,600 beetles.
Explanation:
The fraction of offspring with black coat color and straight fur is 9/16.
Explanation:
Information given:
black coat colour and straight fur - dominant genotype BBCC, BbCc
yellow coat colour and curly fur - recessive genotype bbcc
Both the traits are independently assorted. The fur colour and fur type is not present on the same chromosome and are not sex linked.
The genotype of the parents are:
BbCc X BbCc
Punnet square shows:
BC Bc bC bc
BC BBCC BBCc BbCC BbCc
Bc BBCc BBcc BbCc Bbcc
bC BbCC BbCc bbCC bbCc
bc BbCc Bbcc bbCc bbcc
9 BLACK STRAIGHT
3 BLACK CURLY
3 YELLOW STRAIGHT
1 YELLOW CURLY
9/16 is the fraction of progeny to be black coat colour and straight fur.
Answer:constriction of pupil
Explanation:the circularly arranged smooth muscle fibers in the highlighted structure ie the iris causes constriction of the pupil.
The iris basically has ciliary muscles that control Lens shape ,this happens when the ciliary muscles under the signal of the parasympathetic nervous system contract leading to the constriction of the pupil and when these muscles relax then dilation of the pupil will occur
<u>Answer</u>: Thermal energy----> a polar bear breaks down stored fat to increase its temperature.
Mechanical energy-------> bat emits and receives sounds to locate prey.
Electrical energy------>eel releases a current to defend itself.
Radiant energy --------> a firefly produces a green glow from its abdomen to attract mates.
<u>Explanation</u>:
- <em>Thermal energy</em> is the energy created in the movement of particles that leads to the production of heat and thus, the temperature increases. Since the polar bears break down fat to increase temperature, the energy generated is thermal energy.
- The<em> mechanical energy</em> is defined as the sum of energy of motion and the position of an object . Thus the energy produced by the bat to locate its prey is mechanical energy.
- The energy associated with the production of electromagnetic radiation is<em> radiant energy,</em> thus the glow produced by fireflies is a form of radiant energy.
- The energy produced due to the movement of electrons is electrical energy. Thus, the energy produced by an eel in the form of electric current is <em>electrical energy.</em>
Answer and Explanation: The farmer has a pure-breeding line of tomato means the farmer has a tomato with genotype FFrrtt while the other line of tomato has genotype ffRRTT.
The cross between these lines gives a F1 generation of heterozygous full, red and axial or FfRrTt.
With an individual of F1 crosses with another individual of F1, the Punnet Square will be:
FfRrTt x FfRrTt
1) Dividing each characteristics, for simplicity:
F f
F FF Ff
f Ff ff
R r
R RR Rr
r Rr rr
T t
T TT Tt
t Tt tt
Analysing Punnett squares, we notice the line wanted (ffrrTT) will be produced, when an individual of F1 generation cross with another individual with the same generation.
