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3 years ago

Which of the following best explains how human activities can directly contribute to landslides

1 answer:

4 0

Removing plants from hillsides eliminates the root structures that anchor soil. Indeed the roots of trees, further to anchor the tress to the floor, serve as a net to which the soil attaches preventing the soil of been washed and removed by rainstorms.

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In cats, the gene for Calico (multicolored) cats is an x-linked trait that is

hichkok12 [17]

Answer:

Considering the <u>whole progeny</u> (100%), there will be

25% Black male kittens, XBY
0% Calico Male kittens
25% Calico female kittens, XBXR

Explanation:

<u>Available data:</u>

The gene for Calico (multicolored) cats is an x-linked trait and codominant
Calico Females receive a "B" and an "R" gene, and have black and orange splotches on white coats. Their genotype is XBXR.
Males can only be black or orange, but never calico. Their genotype is XBY and XRY

Cross: a female calico cat with a black male

Parentals) XBXR x XBY

Gametes) XB XR XB Y

Punnett square) XB XR

XB XBXB XBXR

Y XBY XRY

F1) Among the whole progeny:

2/4 = 50% will be black (female XBXB and male XBY)
1/4 = 25% will be Calico (female XBXR)
1/4 = 25% will be Orange (male XRY)

Among females:

1/2 = 50% of females will be black, XBXB
1/2 = 50% of females will be Calico, XBXR

Among males:

1/2 = 50% of males will be black, XBY
1/2 = 50% of males will be orange, XRY

7 0

3 years ago

What do the function and structure of the forelimbs of the 4 animals tell us

marin [14]

Answer: biomarker: A substance used as an indicator of a biological state, most commonly disease.

trace fossil: A type of fossil reflecting the reworking of sediments and hard substrates by organisms including structures like burrows, trails, and impressions.

fossil record: All discovered and undiscovered fossils and their placement in rock formations and sedimentary layers.

strata: Layers of sedimentary rock.

fossiliferous: Containing fossils.

Explanation: hope this is what you mean if not ill try again

8 0

2 years ago

Information found on the chromosome of an organism would MOST affect which statement?

ryzh [129]

Letter C, the third option.

Explanation

4 0

3 years ago

What is the problem with earth's atmosphere?

goldfiish [28.3K]

Answer:

Each layer has a different temperature range and contains different mixtures of gases and moisture. Human activities on Earth's surface can create changes in the atmosphere. Pollution, acid rain, and holes in the ozone disrupt how the atmosphere normally functions.

8 0

3 years ago

Pls help! I need to turn this is by tomorrow

photoshop1234 [79]

There are lots:

Biology and Medicine - cloning and expression of human insulin in bacteria (stopped having to produce it from pig pancreases); Watson & Crick discovery of the structure of DNA; gene therapy in humans

Chemistry - determination of the exact number of molecules in a mole (Avagadro's number); discovery of radioactivity (Rutherford); the invention of nylon (DuPont); Boyle's law (behavior of gases)

7 0

3 years ago