The process that results in Ms. Milly’s wilting lettuce becoming firm is osmosis. The explanation is below.
OSMOSIS:
- Osmosis is the process by which water molecules move from a region of high concentration to a region of low concentration via a semipermeable membrane.
- According to this question, Ms. Milly, occasionally sprinkles water on her wilting lettuce and notices that they became firm.
- The firmness of the lettuce is as a result of the movement of water into the leaf cells due to a process called osmosis.
Learn more at: brainly.com/question/13655668?referrer=searchResults
The best answer would be:
The first option.
Air moves in a direction that creates land breezes.
If you'd like to know more about this, you can read on:
The arrows show how air moves as land breezes are created. In coastal areas, land cools much faster than water, so what happens is the air above it gets cooled down. When this happens, it becomes more dense moves downwards towards land. This causes high pressure and cause winds to blow outwards towards water (ocean).
Answer:
Option C, ppAa is indicative of white axial flowers.
Explanation:
It is given that Purple color (P) is dominant over white color (p). Thus in order to have a flower of white color , the flower must be homozygous recessive with an allele pair having two recessive alleles.
Similarly, Axial (A) is dominant over terminal (a) flower. Thus, a flower can be axial in two cases -
a) when both the alleles are same i.e AA
or
b) when one allele is A and the other one is a i.e Aa
Considering the above cases, all possible allele combination that will produce white axial flower are as follows -
ppAA, ppAa
Thus, option C is correct
Answer:
True
Explanation:
An atom is stable because of a balanced nucleus that does not contain surplus energy. If the forces between the protons and the neutrons in the nucleus are unbalanced, then the atom is unstable. Stable atoms retain their form for ever, while unstable atoms undergo radioactive decay.
Answer:
D
Explanation:
This involves a dihybrid inheritance I.e. two genes are being passed on. During meiosis, specifically, the Prophase stage, homologous chromosomes (similar but non-identical chromosomes received from each parent) line side by side. According to the question, one chromosome contains A and B alleles and its homologue, received by the other parent carries a and b alleles. This means that the diploid individual has a genotype AaBb for that gene.
According to Mendel's law of independent assortment, the alleles separate independently of one another into gametes. I.e. allele A and a separates into the gametes without affecting alleles B and b of the other gene.
Crossing-over, which is the exchange of chromosomal segment occurs between the two homologues. Hence, the exchange of chromosomal segments containing alleles in the individual will possibly produce four gametes with the genotypes: AB, Ab, aB, ab.
