Options for the questions are not given. They are as follows :
A ) 1,2,3
B) 2,3
C)1 ,3, 4
D)1
E) 1 through 4
Answer:
C) 1,3,4
Explanation:
Some aphids make black walnut trees their habitat in the forest and only prefer to mate with aphids who have the same habitat. This is an example of reproductive isolation since these aphids now have different mating preferences and hence are isolated from rest of the aphids. The isolation occurred on the basis of difference in habitats so it is also an example of habitat isolation. Since the mating is prevented all together it is also an example of prezygotic barrier i.e. formation of zygote is inhibited. However, it is not an example of allopatric speciation since the aphids are not separated geographically from each other. They are present in the same area but have different habitat preference. Hence, option C is correct answer.
Answer: These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation.
Hope that helped
The answer to this question would be: coconut oil and dairy.
Coconut oil has been advertised to have a improve cholesterol but actually, it has a combination of bad cholesterol or LDL and good cholesterol or HDL. As far as I know, the research is not concluded yet to tell whether it really has more benefit for your cholesterol level, but another option is less likely to be true.
Answer:
1. Binding of insulin to the alpha subunit of the insulin receptor
2. Activation of insulin receptor tyrosine kinase
3. Phosphorylation of IRS proteins
4. Activation of PIP3-dependent protein kinase B (PDK1)
5. Phosphorylation of phosphinositide 3-kinase (PI-3K)
6. Conversion of PIP2 to PIP3
7. Activation of Akt
8. Glut4 receptors transported to cell membrane
C) all the offspring will be genetically identical.
Explanation:
During binary fission, all the offspring will be genetically identical and little to no variation occurs.
Binary is an asexual form of reproduction which does not involve the combination of gametes from the parents.
- During binary fission, the parent simply divides to produce young ones.
- In this process, the offspring replicates the genetic component of the parents making it identical.
- The offspring is a direct copy of the parents.
- It is only in sexual reproduction that genetic materials are exchanged between the parents and offspring. This leads to genetic variation.
Learn more;
Asexual reproduction brainly.com/question/9424950
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