Question 1

Question

Question 1
Chicken Dance GIFs | TenorIt is found that in cha-cha chickens, the allele for a double comb (A) is dominant to the allele for a single comb (a). A mother with the genotype Aa and a father with the genotype Aa produce an offspring.
What is the percent chance that the offspring will have a single comb?     
Word Bank:
7510025500
Blank 1: 
Question 2
A graph representing a population growth curve is shown below.

What does B represent on this growth curve?

a
a population's carrying capacity
 b
exponential growth within a population
 c
the lag phase of a population's growth
 d
linear growth within a population
Question 3
Due to stress from intraspecific competition, large numbers of female lemmings miscarry their young and fail to reproduce.

This is an example of (a)  _____________.

The Lemmings | The home for Grizzy and the Lemmings fans | Boomerang

a
density dependent limiting factor
 b
biotic potential
 c
habitat destruction
 d
density independent limiting factor
Question 4
Select all the factors that can affect a population that is growing too large.
Choose more than 1.
 a
immigration
 b
increased predation
 c
depletion of food
 d
increased space
 e
disease
Question 5
Chloe is investigating the population size of rabbits in a woodland ecosystem. She researches the known population of rabbits over 125 years and creates a graph representing the rabbit population with a solid line and the ecosystem's carrying capacity with a dotted line.

Based on the information in the graph, what conclusion can Chloe draw about the time period between 1800 and 1835?

a
The rabbit population had few limiting factors and the ecosystem was beyond its carrying capacity.
 b
The rabbit population had many limiting factors and the ecosystem was beyond its carrying capacity.
 c
The rabbit population had few limiting factors and the ecosystem had not yet reached its carrying capacity.
 d
The rabbit population had many limiting factors and the ecosystem had not yet reached its carrying capacity.
Question 6
Which of the following refers to a population reaching a size that can no longer be supported by available resources in the surrounding environment?

a
environmental resistance
 b
carrying capacity
 c
survivorship
 d
exponential growth
Question 7
The pyramid shows how biomass changes between trophic levels of an ecosystem.

image b95050928618458399679f086eb24478

Which explains how the biomass at the top of the pyramid will change if a fire destroys a large percentage of the grasses in this ecosystem?

a
It will increase because the amount of energy lost as heat between the first trophic level and second trophic level will decrease.
 b
It will increase because the fire increases the efficiency of energy transfer and prey aquisition at higher trophic levels.
 c
It will decrease because the amount of chemical energy photosynthesis generates will not be enough to support higher trophic levels.
 d
It will decrease because there will be a greater number of organisms at the second trophic level to support the higher trophic levels.
Question 8
The main reservoir of nitrogen can be found in the _____________.

a
Atmosphere
 b
Lithosphere
 c
Biosphere
 d
Hydrosphere
Question 9

a
heterozygous male
 b
normal female
 c
homozygous dominant
 d
heterozygous female
Question 10

What is the genotype for the individual II-3?

a
ee
 b
Ee
 c
attached earlobes
 d
EE
 e
unattached earlobes

GPT-4o mini · Answer

Here are the answers to your questions:

Question 1: To find the percent chance of the offspring having a single comb, we can use a Punnett square. The parents are both Aa, which means:

There is a 25% chance (1/4) for AA (double comb)
A 50% chance (2/4) for Aa (double comb)
A 25% chance (1/4) for aa (single comb)

Thus, the chance of an offspring having a single comb is 25%.

Blank 1: 25

Question 2: Without seeing the graph, it's difficult to determine for sure; however, typically in population growth curves:

Point B often represents the carrying capacity.

So, the answer is a. a population's carrying capacity.

Question 3: The miscarriage of young in female lemmings due to intraspecific competition is influenced by the density of the population. Therefore, this is an example of:

a. density dependent limiting factor.

Question 4: Factors that can affect a population that is growing too large include:

a. immigration
b. increased predation
c. depletion of food
e. disease

Increased space would not affect a large population negatively, so it is not included.

Question 5: If the rabbit population is shown to have a period of growth with the ecosystem's carrying capacity indicated, and the population was growing between 1800 and 1835, it likely means:

c. The rabbit population had few limiting factors and the ecosystem had not yet reached its carrying capacity.

Question 6: When a population reaches a size that can no longer be supported by available resources, it has reached its:

b. carrying capacity.

Question 7: If a fire destroys a large percentage of the grasses (the primary producers), the result would be that there is not enough energy to support higher trophic levels. Thus:

c. It will decrease because the amount of chemical energy photosynthesis generates will not be enough to support higher trophic levels.

Question 8: The main reservoir of nitrogen can be found in the:

a. Atmosphere.

Question 9: Without additional context (as you have not provided information about what this question is referring to), it is difficult to answer. If this pertains to genetics and inheritance (and you mean like in a pedigree), the options might correlate to specific traits related (for instance, certain dominant or recessive traits).

This question needs more context for a precise answer.

Question 10: Similarly, without additional context regarding what II-3 represents, it's hard to determine the exact genotype. However, if II-3 refers to a person showing a trait in a pedigree chart, you would choose the corresponding options that aligns with the trait (such as attached or unattached earlobes).

Thus it requires a specific family tree or pedigree information to answer accurately. Based on common knowledge:

If II-3 has attached earlobes, you might choose a. ee.
If II-3 has unattached earlobes (considering it's a dominant trait), you might choose b. Ee or d. EE depending if it's homozygous or heterozygous.

More context is needed to give a precise answer here.

If you have further details or clarifications about any questions, feel free to share!