Our lungs.
Hope this helps. c:
Answer:
180m! :D
Explanation:
If the speed of sound is 343m/s
The prey is at a distance d than it would take 2d for sound to get back to bat and time is 1s then
Speed=distance/time
340=2d/1
340=2d
180=d
Hope this is right lol
Answer:
your mom
Explanation:
hyhggfffffffffffffffffffffffa
Answer:
D
Explanation:
The only way for giraffes to evolve over time towards having long necks would be to have genetic differences that were gradually favored over time. As in, the giraffes that were genetically disposed to have necks just a bit longer eventually survived longer, because they could eat high leaves, while those with short necks died, and the long-necked giraffes reproduced more, which increased the allele frequencies of long necks in the species over time.
Never, never say A or B!! This is known as Lamarck's theory of inheritance of acquired characteristics, and it's simply wrong.
C is wrong, because the mutation must occur in the original zygote.
Answer:
66 P_ Q_: 9 P_ qq: 9 pp Q_: 16 pp qq
Explanation:
As the genes are 20 m.u apart, recombination frequency between P & Q genes will be 20% (As 1% recombination = 1 m.u).
Parental cross \rightarrow PP QQ x pp qq
Parental gametes \rightarrow PQ, pq
F1 \rightarrow Pp Qq
F1 gametes \rightarrow PQ (Frequency = 0.4), pq (Frequency = 0.4), Pq (Frequency = 0.1), pQ (Frequency = 0.1) (As non-recombinant gametes frequency will be 0.8 & recombinant gametes frequency will be 0.2)
See the attached table.
