Which sequence best represents the flow of energy through an ecosystem?

Sun → green plants → herbivores →carnivores

when a person is injected with a vaccine

they be able to quickly fight this microbe in the future

Line B represents the

the carrying capacity of the environment

S, G & I will be in the cell. G & I will also be out

Why would bacteria become resistant to an antibiotic?

bacterial cell had a mutation allowing them to be resistant

An athlete might believe that there is a benefit to blood doping with red blood cells because

it could improve the delivery of oxygen to the muscles

the mice with the black trait had an adaptive value

These cells regulate...

Water and gasses going into a plant leaf

Which processes are responsible for the variations between the Galapagos Finches?

mutations and natural selection

This process is called _______ and an example or a result of this is _____________

genetic engineering, mass producing insulin

Which statement best describes an ecosystem maintaining a state of approximate equilibrium?

Nutrients from decayed organisms arerecycled in a ecosystem.

Considering the hypothesis “Does the pH of water affect the growth of radish plants?”

radish seed growth is the dependent variable

a muscle cell has the same DNAas a nerve cell, but they perform different functions because

different parts of the DNA areused in each type of cell

Which sequence best represents sexual reproduction?

meiosis → gametes → fertilization → zygote

organelles → tissues → organs → organ systems → organism. This can be completed by inserting

“cells →” between organelles and tissues

Which factor would be least likely to contribute to the development of a new species?

many resources within the environmentoccupied by the species

What is the function of the placenta?

exchange materials between the mother and fetus

This is an example of

Negative feedback to maintain homeostasis

Which of the following statements is true regarding the nucleus of a sex cell and body cell

body cell has full amount of genetic info, sex cell has half

"Does the pH of water affect the growth of radish plants?"... What would increase validity

repeating the experiment several times

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Living Environment Regents Review

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Questions 51

Answers

1
Which sequence best represents the flow of energy through an ecosystem?
green plants → carnivores → consumers →herbivores
Sun → green plants → herbivores →carnivores
consumers → carnivores → herbivores →producers
Sun → herbivores → producers → consumers
2
Large ground finch with sharp billed ground finch
Compete
Don't compete
3
(2) represents _______ and (4) represents ______
Mitosis, Meiosis
Meiosis, Mitosis
Mitosis, Cloning
Differentiation, Meiosis
4
when a person is injected with a vaccine
they are injected with a live form of the pathogen
their red blood cells make antibodies against the vaccine
white blood cells make antibiotics against the pathogen
they be able to quickly fight this microbe in the future
5
Which ones are most closely related?
B and C
A and E
C and D
A and B
6
This cell division is ______ and x represents ______
Meiosis, polar bodies
Mitosis, diploid cells
Mitosis, sperm cells
Meiosis, spermatozoa
7
Line B represents the
Niche of the species in the environment
amount of biodiversity in the environment
number of populations in the environment
the carrying capacity of the environment
8
Forests are being cut and burned to clear land for homesand farmland. A negative effect is
destruction of the ozone shield
increase in the biodiversity of an ecosystem
increase in global warming
decrease in the average global temperature
9
Plant DNA was cut with a _______. Plant X has the most DNA in common with...
Restriction Enzyme, Plant 1
Restriction Enzyme, Plant 3
Recombinant Scissor, Plant 2
10
Structure X is a _____ and the chemical could be a ______
Hormone, receptor
Receptor, hormone
Cell, protein
Neuron, receptor
11
The concentration of potassium is higher in the cells than the fluid around it because of
diffusion
excretion
active transport
circulation
12
After 15 minutes...
S, G & I will be in the cell. G & I will also be out
G and S will be found in & out of the cell
G will be outside of the cell only
S will be in and out of the cell. G and I will be in
13
The whole thing is a _______ and A represents a _________
Worm, heart cavity
Gene, Chromosome
Chromosome, Gene
Gel electrophoresis segment, DNA banding pattern
14
Why would bacteria become resistant to an antibiotic?
a resistant and a nonresistant bacterial cell mated
bacterial cell evolved resistance bc the environment changed
bacteria become used to the antibiotic
bacterial cell had a mutation allowing them to be resistant
15
Which plant species appears to be most closely related to the unknown species?
2
1
3
16
What is the central idea of biology?
RNA --> DNA --> Proteins
DNA --> Amino Acids --> Carbohydrates
DNA --> RNA --> Proteins
Proteins --> Fats --> Carbohydrates
17
An athlete might believe that there is a benefit to blood doping with red blood cells because
it could increase the amount of training necessary
it helps deliver necessary nutrient molecules to the cells
it would help an athlete to fight disease
it could improve the delivery of oxygen to the muscles
18
Ozone depletion is caused by the release of _____ and can cause ______
pollution, an increase in biodiversity
CFC's, skin cancer
CO2, skin cancer
fossil fuels, genetic mutation
19
Overtime...
the mice with the black trait had an adaptive value
white became more favorable and dark became less favorable
the white mice camoflauged better with the environment
white was less favorable bc black mice died
20
These cells regulate...
Water into a plant's roots
Air flow out of the lungs
Water and gasses going into a plant leaf
Blood flow into the heart
21
Which processes are responsible for the variations between the Galapagos Finches?
mitosis and differentiation
mutations and natural selection
gene manipulation and overpopulation
competition and cloning
22
how is the normal chromosome number for humans maintained from one generation to the next
through fertilization
through gel electrophoresis
through ecological succession
through mitosis
23
This process is called _______ and an example or a result of this is _____________
genetic engineering, mass producing insulin
Selective Breeding, mass producing human growth hormone
Cloning, mass producing a desired crop
Recombinant bacteria, clone organisms
24
Which statement best describes an ecosystem maintaining a state of approximate equilibrium?
Nutrients from decayed organisms arerecycled in a ecosystem.
Mice are released in a field as food for endangered species
All frog species in a rainforest become extinct
A mutation causes bacteria to be antibiotic resistant
25
The cell was placed in _____ in process A, and _____ in process B.
iodine, salt water
salt water, iodine
salt water, distilled water
distilled water, salt water,
26
medium ground finch with vegetarian finch
Compete
Don't compete
27
A _______ in and out of the cell and B did not because it is too _____
Diffused, large
Actively Transported, small
Actively transported, large
Diffused, small
28
The release of CO2 from the burning of fossil fuels leads to
An increase in biodiversity
Global Warming
Ozone Depletion
Deforestation
29
Which type of organism helps to reduce atmospheric carbon dioxide?
decomposers
herbivores
producers
heterotrophs
30
___ is the enzyme and it is ________ a molecule
A, digested
A, synthesized
E, digested
E, synthesized
31
Considering the hypothesis “Does the pH of water affect the growth of radish plants?”
radish seed growth is the dependent variable
water is the dependent variable
pH is the dependent variable
growth of the radish plant is the independent variable
32
A finite resource in the environment that keeps a population from steadily increasing is
called ecological succession
known as a limiting factor
called dynamic equilibrium
knwon as a reproductive enzyme
33
a muscle cell has the same DNAas a nerve cell, but they perform different functions because
temperature variations within the body alterDNA
different parts of the DNA areused in each type of cell
different mutations occur in each cell type
proteins in each cell type change thestructure of DNA
34
Meiosis occurs at ____ and fertilization occurs at ___
B, C
D, B
A, D
B , A
35
What are the building blocks?
Sugars
Carbohydrates
Amino Acids
Proteins
36
Which sequence best represents sexual reproduction?
fertilization → gametes → meiosis → zygote
meiosis → gametes → fertilization → zygote
gametes → meiosis → mitosis → fertilization
mitosis → gametes → zygote → fertilization
37
Which stage is the most stable and biodiverse?
II
IV
I
III
38
Which group consists entirely of organic molecules
protein, fat, starches
water, starch, protein
protein, oxygen, fat
water, carbon dioxide, oxygen
39
organelles → tissues → organs → organ systems → organism. This can be completed by inserting
“proteins →” between tissues and organs
“populations →” between organs and organ systems
“cells →” between organelles and tissues
“molecules →” between organ systems and organisms
40
Which factor would be least likely to contribute to the development of a new species?
changes in the environment of the species
ability of the species to increase itssize by sexual repro
many resources within the environmentoccupied by the species
increased genetic variation within thespecies
41
What is the function of the placenta?
protect the fetus from physical harm
exchange materials between the mother and fetus
produce gametes by meiosis
store food to provide the fetus with nutrients
42
Which one focuses
A
B
D
C
43
The enzyme which works best in water is...
A
C
B
D
44
A job of these cells is to
Synthesize antiviral organisms
Synthesize antigens
Synthesize antibodies
Synthesize antibiotics
45
This is an example of
How enzymes work to maintain your blood sugar
Positive feedback to maintain the gases in your blood
Negative feedback to maintain homeostasis
What happens if you are diabetic
46
a hormone like adrenaline can only affect cells with
ribosomes that produce adrenaline
the appropriate antibodies
genes that break down adrenaline
appropriately shaped receptors
47
Which of the following statements is true regarding the nucleus of a sex cell and body cell
body cells and sex cells both carry half of the genetic info
body cell and sx cell have the same amount of genetic info
sex cell has full amount of genetic info, body cell has half
body cell has full amount of genetic info, sex cell has half
48
"Does the pH of water affect the growth of radish plants?"... What would increase validity
repeating the experiment several times
) placing one set of plants in sunlight and one in darkness
using two different types of radish seeds in each group
using the same pH for both groups of plants
49
DNA is transcribed to RNA at ______ and proteins are synthesized at _____
B, D
A, F
C, E
D, B
50
If cells here mutated the baby would inherit those genetic changes
B
D
C
A
51
Where organic compounds combine with oxygen to create ATP
E
D
H
F

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