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ASHA 777 [7]
3 years ago
13

Por que ate 1938 os cientistas acreditavam que os celacantos estivessem extintos? explique.

Biology
1 answer:
Alik [6]3 years ago
4 0

Answer:

O celacanto era há muito considerado um "fóssil vivo" porque os cientistas pensavam que era o único membro remanescente de um táxon conhecido apenas por fósseis, sem relações estreitas vivas, e que evoluiu para aproximadamente sua forma atual há aproximadamente 400 milhões de anos.

Explanation:

Espero que isso ajude !!

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Instead of using its own lungs, the fetus obtains oxygen and nutrients from the mother's blood.​ true or false
Reil [10]
True it gets that through the blood vessels in the umbilical cord
6 0
3 years ago
Given a population of 100 individuals where 15 are AA, 25 are Aa, and 60 are aa, what is
nata0808 [166]

Answer:

frequency of allele “A” is .39

frequency of allele “a” is .77

Explanation:

hardy weinberg equation

p^2 + 2pq + q^2 = 1 or (A+a)^2

p^2 =  (AA)

2pq =  (Aa)

q^2 = (aa)

AA -> 15/100 = .15

Aa -> 25/100 = .25

aa -> 60/100 = .60

if p^2 = AA = .15 then A = √.15 = 0.38729833462 = .39

if q^2 = aa = .60 then a = √.60 = 0.77459666924 = .77

wikipedia quoraAnkitGauba

6 0
2 years ago
The perimeter is<br>2/3 +3/4 +2/3 +3/4
kow [346]
The total perimeter is 2 5/6
5 0
3 years ago
A car moves with an initial velocity of 15 m s-1 and accelerates with constant acceleration 4 m s-
timofeeve [1]
Initia Velocity(u) :- 15m/s

Acceleration(a) :- 4m/s2

Time Taken(t) :- 50 Seconds

{ok a formula is there —->>> s = ut + 1/2 at2(it is ‘t’ square)….. now we will write like this and yeah don’t write this}

We Know,

s = ut + 1/2 at2

s = (15*50 + 1/2 *4*50*50)m

s= (750 + 5000)m

s = 5750 m

Therefore distance traveled is 5750 meters.

Hopefully this helps
5 0
3 years ago
Two geological features that make the state of Florida very fragile to environmental problems are:
Anastasy [175]

2 geological features of Florida state making it fragile is the Everglades and its bio-diverse nature.

Explanation:

The Florida state is one of three Everglades in the world to be marked as such due to its tendency of being in drought condition all the time due its draining capacity and location in its southernmost parts.

The other environmental condition which the state faces, is the bio-diverse nature of the state. It has endangered species population of cougar. It has been marked as the protected area for the panther species. Alligators too have been listed in the state for the endangered kind. Rest fills up the circuity of the state.

3 0
3 years ago
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