What is the answer to this question if anybody knows i’m really finding it confusing

In Drosophila, red eyes is wild-type and purple eyes are mutant. Full-size wings are wild-type and vestigial wings are mutant. Flies with wild-type pr pr vg vg genotypes were crossed with double mutant flies with a pr-pr- vg-vg- genotypes. The F1 flies had pr pr- vg vg- genotypes. The F1 flies with heterozygous genotypes were crossed with double mutant flies with a pr-pr- vg-vg- genotypes One thousand offspring were typed. This cross produced 430 red-eye, wild-type wing flies, 65 purple-eye wild-type wing flies, 60 red-eye, vestigial wing flies, and 445 purple-eye, vestigial wing flies. What is the distance between the loci for purple eyes and vestigial wings in centiMorgans (map units)

Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them. When non-native earthworms are introduced, the thick layer of leaf litter disappears quickly, thereby altering biogeochemical cycles. You conduct an experiment to compare the nitrogen cycle in soils with and without non-native earthworms. Predict the results of your experiment.

If dogs has 78 chromosomes in each somatic cell, how many chromosomes does each dog sperm have?

Is it possible for 2 dog spend cells to simultaneously enter a dog egg? Why or why not?​

the picture shows a tropical rain forest with a large tree canopy that lets through very little sunlight. Which of the following is a form of life that survives well in this environment?

A. fungi that enjoy the dark forest floor and help to get rid of animal and plant waste.

B. mammals that need moist solid of the forest floor in which to lay their eggs.

C. plants that use moonlight to make food and energy for growth.

D. insects that require no water because rainfall is blocked by the canopy

For BRAINLIST
A squid is shown in the diagram.

Which structure is labeled X?


A mantle
B foot
C radula
D gill

what are some examples of heart healthy fats?​

PEASE HELPPP!!!

Identify the individual(s) in the Jones family whose genotype cannot be determined with the certainty (A_?)

Which of these climates is characterized by dense, lush vegetation, broadleaf plants, and high blodiversity?

A. Desert
B. Savanna
C Tundra
D. Rain forest

please help me here the picture

how does the soil environment support the earthworm in the students hand

A test tube is filled with water and a green plant called Elodea. When the plant is exposed to sunlight, it begins to produce bubbles. What is the most likely conclusion for the identity of the gas in the bubbles? Explain.

3. In most cells,
directs the production of a
which then enters a ribosome. The
molecule of
ribosome produces the final product,
Retroviruses do the opposite. They use the enzyme reverse
transcriptase to use a template of
to produce

7. How does distance affect the strength of an electric force?
A. Electric forces that are closer together are weaker.
B. Electric forces that are closer together are stronger.
O C. Electric forces have the same strength regardless of distance.
O D. Electric forces create their own strength depending on their charge.

Compare and contrast the outer core and the inner core. Mention 2 differences between the two cores.

i need help with my biology hw i will try to add a image

Write down the classes of foods digested in the gut from the mouth to the duodenum?​

Please Help need this soon.

A paternity suit involves a child whose blood type is AB. The mother is blood type B, the alleged father is O. Make a ruling on this case as to whether it is reasonably possible this is the biological father.

What can cause thermal expansion that results in a change in the density of ocean water?

a climate change
b freezing temperatures
c weathering and erosion
d addition of sediments

WILL NAME BRAINLYIST PLEASE HURRY
What are the three states of matter? What do the particles look like in each?

1. FIG 1 shows four organisms which belong to the class Myriapoda
(し
C
A
B
(a) Name the phylum to which the class Myriapoda belongs. State two reasons for your answer
[3]
(b) Give the names of organism A and D.A.
D..........
[2]
(c) Differentiate between A and Din terms of structure
.. [3]
2. FIG 2 shows four different organisms​

Floating sea ice is melting causing polar bears to swim further distances while hunting. A polar bears primary food source are ___________.

A group of researchers has made the claim that one particular butterfly species is the sole pollinator of a tree species and that consequently, the decline of the butterfly population will endanger the survival of the tree species. Data were collected and are summarized below. Which of the following data could best be used to either justify or refute the claim the researchers have made about the interdependence of the butterfly species and the trees?

Tree flower size Number of butterfly visits per flower per day Nectar energy per pollination visit (joules) Fruits per flower
Small 1 10 0.88
Medium 9 12 0.79
Large 55 13 0.85

a. The data comparing the fruits produced per flower with the number of butterfly visits are most useful in refuting the claim, because they show that the tree produces fruit even if the butterfly does not visit the flowers.
b. The data collected for large flowers are most useful in justifying the claim, because they show that a large number of butterflies visit flowers of this tree species, obtain energy from nectar, and cause fruit production.
c. The data comparing the number of butterfly visits with the size of the tree flowers are most useful in refuting the claim, because they show that the butterfly does not visit all types of tree flowers.
d. The data showing the nectar energy available for all sizes of flowers are most useful in justifying the claim, because they show that butterflies benefit from the relationship with the tree by obtaining energy from tree nectar.

Which type of mining would NOT be used to mine coal

which of tbe following are MAINLY energy sources? Choose all that apply
A. protein
B. glucose
C. triglyceride
D. amino acid
E. amylose

Please help and No Links!
​

An organism that survives an epidemic
would be an example of ...... (check your
notes)

Standard deviation refers to the __________. A. statistics used to organize, summarize, and describe sample data B. value within a given set of data in its original form C. average distance between variable scores and the mean in a set of data D. difference between the largest and smallest variable scores in a set of data Please select the best answer from the choices provided A B C D

Name three benefits of keeping plants at home.

How did Bourne believe that an object could be made to rise and sink at will?
a.
By increasing and decreasing volume
c.
Putting more force on the object than the buoyant force
b.
Using a series of weights
d.
Piping air in from the surface


Please select the best answer from the choices provided

A
B
C
D

David comes into the emergency room late at night with a cut that will not stop bleeding. His mother, Rose, is worried that he has a bleeding disorder, just like his grandfather. The lab is closed, so the doctor cannot order a specialized coagulation test. However, the hospital does have a sample of blood from a classic hemophiliac. What is the simplest test the doctor could perform using David's blood to determine if it is missing factor VIII activity

Look at the food web shown above.

Which organisms get energy from consumers?