![subject](/tpl/images/cats/biologiya.png)
Biology, 21.04.2020 23:02 kekebaby156
Like gymnosperms, many grasses and angiosperm trees are wind-pollinated. To conserve energy, these angiosperms do not produce complete flowers (complete flowers have all four of the basic parts). Which part would be unnecessary for wind-pollinated angiosperms?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 21:00
Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:00
To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)—two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:00
Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:30
Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d
Answers: 2
You know the right answer?
Like gymnosperms, many grasses and angiosperm trees are wind-pollinated. To conserve energy, these a...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 03:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 01.09.2019 03:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.09.2019 03:00
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 03:00
![question](/tpl/images/cats/biologiya.png)
Biology, 01.09.2019 03:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 01.09.2019 03:10
![question](/tpl/images/cats/istoriya.png)
History, 01.09.2019 03:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 03:10
![question](/tpl/images/cats/ekonomika.png)
Business, 01.09.2019 03:10
![question](/tpl/images/cats/biologiya.png)
Biology, 01.09.2019 03:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 01.09.2019 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 01.09.2019 03:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 01.09.2019 03:10