Answer:
In a stable population, if all the other factors are equal then the birth rate should be equal to the death rate in order to maintain the stability.
Explanation:
The birth rate is described as the number of births taking place in an area per year. Death rate is described as the number of deaths taking place in an area in a year.
In order to maintain a stable population, the birth rate should be equal to the death rate. If there are more number of births than the number of deaths, then it would mean more competition for resources like food, water etc.
Answer:
Parental genotypes: RrBb, RRBB
Offspring phenotype: Running and black hair
Explanation:
Given, Running (R) is dominant over waltzing (r)
Black hair (B) is dominant over brown hair (b)
Parent 1: Heterozygous running, heterozygous black = RrBb
Parent 2: Homozygous running, homozygous black = RRBB
When they mate ( RrBb X RRBB ) :
Gametes produced by RrBb = RB, Rb, rB, rb
Gametes produced by RRBB = RB
Offspring:
RB Rb rB rb
RB RRBB RRBb RrBB RrBb
All offspring mice will be running mice and will have black hair because all the four types of genotype at least have one dominant allele for both the genes.
The answer is C my good friend :)
Answer:
The correct statements about nutrition for older adults are:
1-Many older adults have difficulty absorbing vitamin B12 from food.
2-Severe arthritis can impact mobility as well as diet choices.
Explanation:
Many older adults have difficulty absorbing vitamin B12 from food bacause With as human grows older, it can become harder to absorb this vitamin.
Yes, it's possible for Severe arthritis to have impact on mobility as well as diet choices, It can result in chronic pain, inability to do daily activities and difficult to walk as we grew older.
This make option 1 & 2 the right answer.
Herbal supplements are not safe to manage health conditions irrespective of age factors, because the proportions of the chemical combinations in the herbs are not in right amount.
Also, in older adults , exercise will not increase risk injury. The sole purpose of exercise is to maintains of the body and a healthier life.
Answer:
Sunlight provides the energy needed for photosynthesis to take place. In this process carbon dioxide and water are converted into oxygen (a waste product that is released back into the air) and glucose (the source of energy for the plant).
