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Taya2010 [7]
3 years ago
8

Successful breeding is limited to the gametes of the same created “kinds” of organisms.true or false

Biology
2 answers:
elena-s [515]3 years ago
8 0
Pretty sure its false, will get back to you c:
Lana71 [14]3 years ago
3 0

The right answer is True.

The experiments nevertheless showed that fertilization between two different species was not possible, because of the specificity of the carbohydrate moiety ZP3 glycoprotein (specific for a given species, the protein part being very conserved during the evolution) involved in the fertilization process. This specific recognition mechanism is especially useful for animals with external fertilization, as some fish or amphibians: the female lays her eggs in the middle, and the male comes to deposit his sperm.

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The _____ theory of dreaming proposes that dreaming occurs when the cerebral cortex synthesizes neural signals generated from ac
jeka94

Answer:

The correct answer is- activation synthesis theory

Explanation:

The activation-synthesis theory tells us about the role of neuron in dream production during sleep. It was first proposed in 1977 by Allan Hobson and Robert McCarley which was psychiatrists at Harvard University.

This theory says that in REM sleep some neurons in the lower brains for example in the brain stem randomly activates due to change in neural signals and dream occurs when the cerebral cortex tries to interpret the meaning of these neuron signal changes.  

So the correct answer to this question is- activation-synthesis theory.

7 0
2 years ago
Overtime a species can change - due to environmental factors and geographic changes. Sometimes, these changes can lead to new sp
SVEN [57.7K]

Answer:

geographic isolation

Explanation:

3 0
3 years ago
Why cycus are called conifer? give its 3major characteristics features​
Licemer1 [7]

Answer:

Cycads /ˈsaɪkædz/ are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, therefore the individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly[3] and live very long, with some specimens known to be as much as 1,000 years old.[citation needed] Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group.

Cycads are gymnosperms (naked seeded), meaning their unfertilized seeds are open to the air to be directly fertilized by pollination, as contrasted with angiosperms, which have enclosed seeds with more complex fertilization arrangements. Cycads have very specialized pollinators, usually a specific species of beetle. Both male and female cycads bear cones (strobili), somewhat similar to conifer cones.

Cycads have been reported to fix nitrogen in association with various cyanobacteria living in the roots (the "coralloid" roots).[4] These photosynthetic bacteria produce a neurotoxin called BMAA that is found in the seeds of cycads. This neurotoxin may enter a human food chain as the cycad seeds may be eaten directly as a source of flour by humans or by wild or feral animals such as bats, and humans may eat these animals. It is hypothesized that this is a source of some neurological diseases in humans.[5][6]

Cycads all over the world are in decline, with four species on the brink of extinction and seven species having fewer than 100 plants left in the wild.[7] The plant has a very long fossil history, with evidence that they existed in greater abundance and in greater diversity before the Jurassic and late Triassic mass extinction events.

Explanation:

~Dr.Smiley~

(Jane)

8 0
2 years ago
Which is Not a feature associated with valley glaciers
cluponka [151]
I think its arroyo.
i hope this answer is correct and helps you :)
6 0
3 years ago
Read 2 more answers
Which of the following is NOT one of the characteristics animals share? a. cell differentiation c. unicellular b. movement d. re
victus00 [196]
The only logical answer would be C. Unicellular, but the answers seem to be all wrong. 
3 0
2 years ago
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