Which type of reproductive barrier separates a pair of jellyfish species

Question # 00645059
Subject: Biology
Due on: 03/04/2023
Posted On: 03/04/2023 12:56 AM
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1.

Which type of reproductive barrier separates a pair of jellyfish species that could interbreed except that one lives near the surface of the ocean and the other lives in the very deep sea?

hybrid inviability

gametic isolation

temporal isolation

behavioral isolation

habitat isolation

2.

What is the source of most variability found within populations?

mutations

gene flow

mitosis

organisms need traits so they get them

natural selection

3.

On a coral reef, it is difficult for very large knobby starfish to find enough food while very small knobby starfish have few defenses and are gobbled up by predators very quickly.  As a consequence, the majority of the knobby starfish on this reef are medium-sized.  This is an example of which type of selection?

stabilizing selection

frequency dependent selection

directional selection

disruptive selection

sexual selection

4.

It is believed that humans are currently causing the 6th mass extinction.

True

False

5.

A large population of finches lives in a forest.  The majority of these finches have red feathers on their chest and belly but there are a few with yellow feathers and a few with blue feathers.  A huge wildfire sweeps through the forest so quickly that most of the birds cannot escape.  Once the fire is gone, only a few finches remain and all of them have yellow feathers except one lone finch that has red feathers.  This is an example of:

the founder effect

gene flow

natural selection

sexual selection

the bottleneck effect

6.

In the evolutionary tree below, which letter represents the most recent common ancestor of giraffes and birds?

Evolutionary_Tree.jpg

Giraffes and birds are not related - that's crazy talk

C

B

D

A

7.

Structures, like the appendix in humans, that have little or no current importance to the organism yet are homologous to functional organs in another organism are called:

vestigial structures

comparative structures

embryological structures

biological structures

analogous structures

8.

The shift in fur color within populations of rock pocket mice that live on hardened lava flows is an example of:

sexual selection

frequency-dependent selection

stabilizing selection

disruptive selection

directional selection

9.

Where did Charles Darwin make some of his most important observations (about creatures like the marine iguana and giant tortoise)?

Andes Mountains

Great Britain

Galapagos Islands

Cuba

Costa Rica

10.

Comparative embryology has shown us that which of the following are traits that humans, mice, chickens, bats, alligators, and all other chordates share as embryos but not necessarily as adults?

a tail and gills

webbed feet and feathers

a backbone and an umbilical cord

scales and gills

fu and a tail

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Which type of reproductive barrier separates a pair of jellyfish species

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