<h2>Answer:</h2>
The option D is correct.
<u>B cells are memory producing cells.</u>
<h3>Explanation:</h3>
As B cells are the specific receptor cell, after immunity to certain infection of the foreign particle, there is a function of acquired immunity is the protection of the body from that particular infection for the whole life which is done by <u>memory cells of B lymphatics.</u>
<span>A single gene can only influence a single trait is a FALSE
statement. Genes is a factor to the inherited traits. In human genetics there
is dominant trait that a person can inherit from their parents. Diseases and
disorders can be passed through genes by the family.</span>
The reason that provides the best explanation of why a bar graph was selected to show the data in the table is that Bar graphs are used to compare separate items.
A bar graph is a visual tool that uses bars to compare data among categories. It may run horizontally or vertically such that the longer the graph the greater its value. A bar graph or bar charts uses bars to show comparisons between categories of data. It will always have two axis, one being generally numerical values, and the other describing the types of categories being compared.
In excreted urine, a reliable "marker" that a pregnancy has initiated is human chorionic gonadotropin (hCG).
<h3>
What is human chorionic gonadotropin?</h3>
- The trophoblast cells that surround a developing embryo.
- Eventually give rise to the placenta after implantation generate the hormone known as human chorionic gonadotropin, which helps women recognize pregnancy.
- Some pregnancy tests can detect the HCG's presence.
- The placenta secretes a hormone known as human chorionic gonadotropin throughout pregnancy (HCG).
- It tells the body to stop menstruation and makes the uterine lining thicker to support an embryo in development.
- After fertilization, HCG levels increase and stay elevated for another 10 weeks or more of pregnancy.
- As accurate as blood tests are urine testing.
- An individual is pregnant if their HCG level is high.
- An individual is not pregnant if a qualitative HCG test is negative.
- After a few days, a person should repeat the test if they still believe they are pregnant.
Learn more about human chorionic gonadotropin here:
brainly.com/question/28025179
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