Answer:
The physical properties of matter can be measured precisely using tools, such as a triple beam balance, a graduated cylinder or beaker, a metric ruler, timing devices, or a thermometer.
The correct answer is:
The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species.
Aneuploidy is a phenomenon when there is the presence of an abnormal number of chromosomes in a cell (an extra or missing chromosome). Usually it appears as a result of improper cell division (chromosomes don’t separate) and it can cause many genetic disorders.
Polyploidy refers to a state when there are more than two sets of chromosomes (one from mother one from father). Triploid (three sets of chromosomes) and tetraploid (four sets of chromosomes) chromosomes are examples of polyploidy. This phenomenon is most common in plants.
Answer:
they are chambers located below the two atria.
the right ventricle receives deoxygenated blood whereas the left receives oxygenated blood which opens up into the aorta
Answer:
Spore can survive under unfavorable conditions as they are covered by a hard protective coat. Spores can grow to produce new plants and does not require sexual interaction with another organism. Due to their small size and light weight, they can be dispersed easily.
Spores can remain dormant till favourable conditions become available. b. Spores help an organism to tide over the bad phase. Spores can be spread through water, air or animals and thus is good for the spread of an organism to more places.
Explanation: hope this helps bro! (:
Answer:
c The trees will grow and the forest will be restored to its original form.
Explanation:
The ashes from the old trees will serve as nutrient for the new plants. its restores back the ecosystem because the old tress and ashes will decay which will return nutrient to the soil.
the new seedlings will be exposed to fresh air and sunlight which improve there germination.
