The correct answer is option B
By seeing the graph we can easily say that we see a graph that is decreasing. We can predict that in the next 20 years the number of trees will be be reduced in number.
Due to decrease in the number of trees, the oxygen concentration will also decrease. The production of oxygen will decrease for sure as trees are main source of production of oxygen in the rainforest.
Answer:
red blood cells and nerve cells
Explanation:
The Hayflick Limit is a concept that helps to explain the mechanisms behind cellular aging. The concept states that a normal human cell can only replicate and divide forty to sixty times before it cannot divide anymore, and will break down by programmed cell death or apoptosis
this is for further explanation
b. polygenic traits
c. codominance
d. incomplete dominance
The right answer is A. multiple alleles.
The multiallelic genes contribute to the study of polymorphism and genetic variability of individuals as well as populations.
In multi-allelic genes, individuals are differentiated by several alleles that exist in several forms.
For example: in a certain region of the genome there may be a single nucleotide polymorphism (SNP), one can find either an adenine or a guanine (bi-allelic).
Answer:
It depends on the weight of teen before getting pregnant.
25 to 35 pounds should be weight gain for average weight girl , for underweight girl it should be 28 to 40 pounds and 15 to 25 pounds for overweight girl.
Explanation:
Nutrition , exercise is must for healthy teen pregnancy. All essential vitamins , minerals iron , calcium , folic acid should be in the diet. Low intake of essential diet leads risk of low weight of baby , also may be other health complications. Alcohol, smoking , drugs should avoid during pregnancy.
(1) mitosis of sex cells
(2) mitosis of body cells
(3) meiosis of sex cells
(4) meiosis of body cells
Answer: The correct answer is-
(2) mitosis of body cells.
Mitosis is a type of cell division in which a parent cell produces two daughter cells having same number of chromosomes as that of their parent cell.
It occurs through a series of 5 stages that are- Prophase, metaphase, anaphase, telophase, and cytokinesis.
It is responsible for the growth of organisms and the repair of damaged tissues (in case of multicellular organisms) as new, identical cells (that are identical to each other) are produced from the parent cell.
Thus, option 2) is the right answer.
Answer:
2) mitosis of body cells
Explanation:
B. Anemones
C. Statices
D. Gladioli