DA 3 Review

Question 1

How many chromosomes are in a normal human karyotype?

Accepted Answer

46

Question 2

______ are the organisms that provide food for the rest of the ecosystem in the food web.

Accepted Answer

Primary producers

Question 3

Cell division is the process that makes

Accepted Answer

2 daughter cells

Question 4

DNA is shaped as a

Accepted Answer

double helix

Question 5

Cellular respiration is an aerobic process because

Accepted Answer

it requires oxygen

Question 6

The Earth has three main climate zones because of ...

Accepted Answer

Distribution of Sunlight

Question 7

___________ is the relatively constant internal physical conditions of an organism.

Accepted Answer

Homeostasis

Question 8

RNA contains the sugar __________ and base pairs __________.

Accepted Answer

ribose, AUCG

Question 9

One codon codes for

Accepted Answer

1 amino acid

Question 10

Carbon is so special because it can make ____ covalent bonds.

Accepted Answer

4

Question 11

Which type of symbiotic relationship benefits both organisms?

Accepted Answer

Mutualism

Question 12

What is the Earth's day-to-day temperature and precipitation?

Accepted Answer

Weather

Question 13

What are the products of meiosis?

Accepted Answer

4 genetically different N cells

Question 14

A female is ______ and a male is _______ (sex chromosomes)

Accepted Answer

XX, XY

Question 15

When does mitosis take place in the cell cycle?

Accepted Answer

M Phase

Question 16

What part of the plant absorbs sunlight for photosynthesis?

Accepted Answer

Pigments

Question 17

A population would increase when...

Accepted Answer

More individuals are born than die

Question 18

Haploid and diploid cells are represented by the letter

Accepted Answer

N

Question 19

A ___________ cell contains a nucleus and membrane bound organelles.

Accepted Answer

Eukaryotic

Question 20

An example of a homozygous allele would be

Accepted Answer

TT

Questions 20