Which of these processes always causes a physical change of the shape of a material?

Which statement describes the proper procedure for identifying an organism by using a dichotomous key?

Zinaida [17]

Explanation:

A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts".

5 0

3 years ago

Potential results from changes in global phytoplankton populations are?

Dmitry [639]

Answer:

Declining populations of phytoplankton, the basis of the marine food chain, will alter the seawater hues, potentially decimating fisheries. The world's oceans are warming and growing more acidic as a result of climate change, and a provocative new study suggests they'll be changing color too.

Explanation:

Hope this is good :)

8 0

3 years ago

What are the advantages and disadvantages to sunscreens containing common active ingredients such as oxybenzone, octocrylene, an

aleksklad [387]

Sunscreens contain chemical ingredients in their compositions, such as avobenzone, oxybenzone, octocrylene, homosalate, octisalate and octinoxate, which have been linked to health problems such as hormonal disruptions, cancer, as well as liver and kidney changes.

<h3>What is oxybenzone, octocrylene, and homosalate bad for?</h3>

Oxybenzone, octocrylene, and homosalateto protect from UVA also penetrates deep into the skin. The penetration into the human body can cause several problems in human health such as

allergic reactions
cell mutation
deregulation of hormonal processes,
etc.

With this information, we can conclude that Oxybenzone, octocrylene, and homosalateto is considered a hazardous eye irritant and, as an allergen, is also known to cause skin allergies.

Learn more about Sunscreens in brainly.com/question/20448560

#SPJ

6 0

2 years ago

Fur color in animals is frequently controlled by more than one gene. However, brown fur in rabbits is dominant over white fur. A

vodka [1.7K]

Answer:

Please find how this is possible in the explanation below

Explanation:

This question is regarding a gene in rabbit coding for fur color. Brown fur (B) in rabbits is dominant over white fur (b). However, according to the question, a white female gives birth to all white rabbits, even though the father had brown fur. This is possible because the father is heterozygous for the brown fur i.e Bb.

Hence, in a cross between a heterozygous father (Bb) and a white mother (bb), the following gametes will be produced by the following parent:

Bb - B and b

bb - b and b

Using these gametes in a punnet square (see attached image), the probability of 1/2 of the offsprings will possess white fur (bb). Based on this result, the white female is able to give birth to all white rabbits because the male rabbit contributed the white allele (b).

7 0

3 years ago

Selects asample of n= 20 pregnant rats and mixes alcoholwith their food for 2 weeks before the pups are born.one newborn pup is

Dafna11 [192]

Your answer would be:

n = 20 pups is recorded.

known that the average birthweight for regular rats (without exposure to alcohol) is μ = 5.6 grams.

sample of n= 20 pregnant rats and mixes alcohol with their food for 2 weeks before the pups are born.

One Newborn pup randomly selected from each litter.

A.). What type of test you would use, to test the hypothesis that, alcohol consumption during pregnancy reduces birth weights? Answer, There is one treatment group, pups of alcohol-fed rats, which is being compared to a known population of regular rats, so the most appropriate statistical test is the z-test.

B.). Would you use a one - tailed, or two - tailed test? Answer, The independent variable is the alcohol condition whether, or not, / the pup’s mother received alcohol while pregnant; The dependent variable is the birth weight

C.). What would be an appropriate measure of effective, size to report?Answer, The scale of measurement for the independent variable is nominal. The scale of the dependent variable (birth weight) is ratio; effective size would be measured by Cohen's d, or r2.

Hope that helps!!!! : ) Answer: zx, Because, there is only one sample; and, it is compared to all the previous patients,/population. The σ, is given.

6 0

3 years ago