Answer:
20 ( B )
Explanation:
Given data:
a and b are 10 map units apart
b and c are 20 map units apart
a and c = 30 map units apart
<em>condition </em>; Triple heterozygote testcrossed
number of progeny = 1000
<u>Determine the number of double crossover result </u>
P( crossover between a and b ) = 10/100 = 0.1
P( crossover between b and c ) = 20/100 = 0.2
p( double crossover ) = 0.1 * 0.2 = 0.02
hence number of double crossovers = number of progeny * 0.02
= 1000 * 0.02 = 20
The three scientific principles of sustainability are: (1) dependence on solar energy, (2) Biodiversity, and (3) chemical cycling.
dependence on solar energy - the energy imparted to the earth system by the sun. The sun warms the planet and provides energy that plants use to produce nutrients. The sun also powers indirect forms of solar energy such as wind and flowing water.
biodiversity -
Answer:
♡Technically, You need an example of each definition.♡
-- Here is the answers.
Explanation:
✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:*
1. One cell for a Phagocyte is called amoeba.
2. A cell that produces antibodies is called B lymphocytes.
3. A cell which produces histamine in an allgeric response is called antigens.
4. A cell that allows the secondary response to be faster than the primary immune response is called Antigen‐specific T cells.
5. A cell which differentiates to form a plasma cell is called B cells.
6. A cell that destrosy cells which are infected with a pathogen (in cell mediated response is called cytotoxic, helper, and suppressor T cells.
Hope I could help you, sorry I am late! :(
Have a great day! (´｡• ᵕ •｡`)
✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ: *✧･ﾟ:* ✧･ﾟ:
Answer AND Explanation:
As the population increases, the amount of resources are depleted. Inadequate resources makes the population growth to stop. With a high population, death rate increases due to starvation and diseases which spread more easily in a large population. There may be a decrease in birth rate due to fewer matings and abortions resulting from social stress.
It keeps the water in the plant, so it keeps the water from evaporating and killing the plant
