Flagged Science Qs

Question 1

Which of the following is correct about mitosis and meiosis?

a- mitosis involves a single round cell division and meiosis involves 2 round cells

b- mitosis increases genetic variation while meiosis stabilizes genetic variation

c- mitosis is responsible for producing sex cells, while meiosis produces vegetative cells

d- mitosis lead to the production of diploid daughter cells, while meiosis leads to the production of haploid daughter cells

e- mitosis involves asexual reproduction, while meiosis involves sexual reproduction

Answer 1

D and E

Question 2

The process of mitosis is an important part of _____ reproduction, and it helps in producing daughter cells, which are ____ to the parent cells.

Answer 2

asexual; identical

Question 3

Mitosis leads to the production of ____ diploid daughter cells; meiosis produces ___ haploid daughter cells

Answer 3

2 diploid daughter cells;

4 haploid daughter cells

Question 3

Mitosis helps in the growth and development of ____ reproducing organisms, while meiosis is only involved in the process of _____ reproduction…

Answer 3

sexually; sexual reproduction

… it helps sexually reproducing organisms by generating genetic variation and diversity.

Question 4

What is secreted by the kidneys that create blood?

Answer 4

Erythropoietin

(it stimulates bone marrow to make red blood cells)

Question 5

Adrenal glands on the kidneys secretes ______ and readies the body for ____ or ____ response

Answer 5

Adrenaline; fight-or-flight

Question 6

Aldosterone is secreted by the _____ and works in conjunction with renin to control _____ pressure

Answer 6

adrenals glands (above kidneys); blood pressure

Question 7

_____ is secreted by the kidneys to help ____ blood pressure

Answer 7

Renin: regulate

Question 9

A student predicted that CO2 released during respiration is higher in concentration than CO2 present in the atmospheric air. To prove this, fresh lime water was taken in two test tubes A and B. Two corks with two holes were fitted in these tubes. In test tube A, the student exhales air, and in test tubes B, the student injected air through a syringe.

Is lime water in test tube A turned milky faster than test tube B? T/F?

Answer 9

True

(Lime carbonate has calcium hydroxide that mixes with CO2 and forms calcium carbonate that makes that milky color. CO2 concentration is higher in exhaled air than in the atmosphere air, lime water in test tube A turns milky faster than test tube B).