4: One that produces asexually and has offspring that are genetically different.
If the environment changes, many members of a certain species may die and so it becomes less and less likely for that species to produce sexually, so it will die out. Furthermore, if the asexual species produces the same traits, that species will not adapt to changes in the environment and will also die out.
Hope this helps ^^
If the sister chromatids do not line up, then there wouldn’t be an equal amount of chromosomes in each of the daughter cells
Hello, that is a very good question!
Back then there was no such thing as 'birth-control', hence they never actually prevented pregnancies, of course there were services that provided 'different' penetration but that could also result in pregnancies.
The popular method of not giving birth [prevent pregnancy] was to kill the baby while still carrying [termination], in other words have a miscarriage.
There many various methods during that time (herbs, beating, old cloth hanger).
Hope this helped,
j548831
Answer:GCCGATTAGCGG
Explanation:
Chargaff base pairing rule state that the ratio of purines to pyrimidine in a specific DNA from any cell or specie must be equal in 1:1 ratio. In chargaff base pairing rule Cytosine C will pair with Guanine G on the complementary strand and Adenine A will pair with Thymine T on the complementary strand. C=G, A=T
So if the sequence 5' CGGCTAATCGCC 3' on the complementary strand will be
3' GCCGATTAGCGG 5'
Answer:
The leafhoppers eat plant tissues and, at the same time, they are eaten by spiders that are the food of large lizards. Finally, these lizards are the food of birds that are eaten by snakes.
Explanation:
The food chain starts with primary producers such as plants and algae (i.e., level 1), then goes through herbivorous species including insects and fish (level 2) and finally ends with carnivores such as rodents, snakes and hedgehogs (levels 3, 4 and sometimes 5, which depends on presence of larger predators). Thus, the trophic levels are represented by the number of steps of the food chain. In an ecosystem, the organisms can also be classified according to the mode of obtaining the food in producers (autotrophs), consumers (heterotrophs) and reducers (detritivores).