1. Ensure all tabs on your Chromebook are closed before beginning your assessment.
2. You will be given 15 minutes to complete your Unit 6 Mid-Unit Assessment.
3. Please read all questions carefully and make sure to check your work before submitting.
1. Ensure all tabs on your Chromebook are closed before beginning your assessment.
2. You will be given 15 minutes to complete your Unit 6 Mid-Unit Assessment.
3. Please read all questions carefully and make sure to check your work before submitting.
Question 1
1.
On the diagram below, circle the dot that best represents the common ancestor of species A, B, and C.
Question 2
2.
Question 3
3.
A student made a wet mount slide of living onion root cells to observe with a microscope. The diagram below represents what the student saw.
When cells divide, the chromosomes become visible. As the student studied this slide, she determined that some of the root cells were dividing. Support the student’s claim by drawing a diagram in the box provided below of one specific cell on the slide where mitosis is clearly occurring.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
In the cell below, identify both the number and name of the structure in the cell that produces proteins.
1) Number of Structure
2) Name of Strucutre
Question 11
11.
Question 12
12.
Base your answers to questions 13 through 15 on the diagram below and your knowledge of biology. The diagram indicates some parts of the human female reproductive system.
Required
1
1
1
Potato plants reproduce both sexually and asexually. Depending on the desired outcome, potato growers use both types of reproduction. A grower would most likely want the potato plants to reproduce asexually when:
selectively breeding new potato varieties
there is a disease affecting similar potatoes growing in the area
environmental conditions in the area are changing
potatoes with the same traits are desired
Models A and B below illustrate two different methods of reproduction.
Which statement best describes the offspring that result from these methods?
Both models A and B produce offspring that have fewer chromosomes than the parent cells.
Both models A and B result in offspring that have more chromosomes than the parent cells.
Model A produces offspring with genetic information different from the parent. Model B produces offspring that are genetically identical to the parents
Model A produces offspring with identical genetic information to the parent cells. Model B produces offspring that are genetically different from the parent cells.
Which diagram below indicates that species D is more closely related to C than it is to either A or B?
Which two structures are directly involved in the normal development of a human fetus?
uterus and placenta
oviducts and ovaries
testes and ovaries
placenta and stomach
The diagram below represents a portion of a cell membrane.
The arrow indicates that the cell membrane is carrying out the process of:
respiration
cell recognition
diffusion
active transport
Which sequence best represents the correct order of events in the formation of a sexually reproduced individual?
embryo → zygote → gamete → fetus
zygote → embryo → fetus → gamete
gametes → embryo → fetus → zygote
gametes → zygote → embryo → fetus
Following fertilization, a zygote divides and soon becomes a multicelled embryo with many different cell types, as represented below.
Which statement best explains this development?
Specialization occurs, resulting in the formation of a great variety of cell types.
Genes are inserted into the zygote to allow for the formation of different cell types.
The expression of genes responsible for the different cell types is controlled by the placenta.
The genetic information in the zygote is divided to produce a complete set for each cell type.
Cells may divide abnormally and produce cells like some of those shown in the photograph below.
When cells such as the skin cells shown reproduce abnormally, it could be a sign of:
an immune response
dynamic equilibrium
cancerous cell growth
a cellular adaptation
As climate changes, which type of reproduction would most likely result in a greater chance of survival for a species?
sexual reproduction, with a short reproductive cycle
sexual reproduction, with a long reproductive cycle
asexual reproduction, with a short reproductive cycle
asexual reproduction, with a long reproductive cycle
Question 13
13.
Question 14
14.
State one function of organ B.
Question 15
15.
State one advantage of internal development for the human embryo.
The structure in which fertilization normally takes place is: