A student is studying calcium, a highly reactive element that humans need for strong bones. Which characteristic of calcium is most closely related to its chemical reactivity?

Answers

Answer 1

Explanation:

it's very reactive which helps to make strong bones


Related Questions

Many research studies have shown that different species may possess some of the exact same genes but show vastly different traits. How can that happen?

Answers

Answer:

Mutation can occur or the order in which these genes appear are in different order. Genetic variation can also occur.

Negative feedback loops:
a. decrease rate
b. increase rate
c. reverse change
d. reinforce change

Answers

Answer:

the answer would be c

Explanation:

hope it helped

What is the function of the DNA

Answers

Answer:the function is direction to build life

Explanation: i’m smart

Answer:

DNA is a information molecules.

It stores instructions for making other large molecules called proteins

these instructions are stored inside each of our cell.

distribution among 46 long structure called chromosomes

PLS PLS HELP

An area surrounded by tall mountains contains a very large, isolated population of green and white peacocks. During the mating season, the male peacocks demonstrate flashy feather displays to attract females, who usually choose green peacocks over white ones. A biology student tabulates the following information.

Genotype

Plumage Color % of Population Allele Controlled Phenotype
FF or Ff
Dark green

84%

F (dominant)

Dark green plumage

ff
White

16%
f (recessive)

White plumage
Using this information, the student plans to use the Hardy-Weinberg equation to predict the allele frequencies in future peacock generations. Why would her research advisor have a problem with this? (2 points)

Group of answer choices

The student needs the percent of the population with the Ff genotype in order to find the F frequency.

Her research advisor would first want her to find the males' mating success rate for the calculations.

The peacocks are sexually selective when choosing mates, so future allele frequencies may drift.

Since the peacock population is isolated, its alleles would shift away from Hardy-Weinberg equilibrium.

Answers

Answer:

The peacocks are sexually selective when choosing mates, so future allele frequencies may drift.

Explanation:

A freckled man marries a woman without freckles. They have four children, two with freckles, and two without freckles. What are the genotypes of all these people?

Answers

Answer:

The genotype of the father: Ff

The genotype of the mother: ff

The genotype of the two children without freckles: ff

The genotype of the two children with freckles: Ff

Explanation:

Freckles (F) are is dominant trait, so one dominant allele in the genotype of an individual will cause he/she to have freckles.  Since the father has freckles, but only two of his children has freckles; that means that he has a heterozygous genotype.  In the Punnett Square, the offsprings' genotypes are shown, as well as the parents'.

A freckled man marries a woman without freckles, and they have four children, two with freckles and two without, so the genotype of the parents are Ff, ff and the children with freckles are Ff, while the freckleless are ff types.

What is the significance of the freckle trait?

There are both dominant and recessive traits that determine the person's quality, such as freckles, which are dominant over being freckleless. When the parents with freckles cross with the parents without freckles, they will produce half the freckles and half the freckleless. The parent with a freckle is heterozygous (Ff), so two types of gametes will be produced, such as F and f, and will form Ff and ff offspring when crossed with the freckleless parent (ff).

Hence, a freckled man marries a woman without freckles, and they have four children, two with freckles and two without, so the genotype of the parents are Ff, ff and the children with freckles are Ff, while the freckleless are ff types.

Learn more about the freckle here.

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distinguish between absorption and reabsorption in the mammalian body​

Answers

Answer:

Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream. This process is known as reabsorption, because this is the second time they have been absorbed; the first time being when they were absorbed into the bloodstream from the digestive tract after a meal.

Explanation:

state two differences between tastic and nastic movement in plants​

Answers

Answer:

Explanation:

Tactic movement;

Movement is directly towards/away from stimulus

Stimuli consist of light/heat/chemical

Nastic movement;

non-directional movement

stimulus is touch/tugor pressure.

Explanation:

1.Movement is directly towards/away from stimulus

2.Stimuli consist of light/heat/chemical

for tastic movement

Which group of pictures best represents a population?
А.
В.
C.
D

Answers

Answer:

C

Explanation:

because a population is a group of the same species that lives in a given area

necesito hacer una infografia en mi computadora y nose como pueden ayudarme

Answers

Answer:

Identify the audience for your infographic.

Collect your content and relevant data.

Choose your desired infographic template.

Download your template to PowerPoint.

Customize your infographic.

Include a footer with your sources and logo.

Add an embed code and Pinterest button, and publish it.

Explanation:

can someone help me plzzzzz

Answers

Answer:join implant,glucose meter, inculin pump

Explanation:

Answer: Insulin pump ensures accurate doses

Joint implant offers the patient mobility

Glucose meter offers the patient control

Explanation: Insulin pump is correct  ik theat bc my brother is diabetic and uses one but the other two im not so sure sorry if im wrong

4) Aos poucos, as pessoas estão aderindo às lâmpadas de LED que são mais eficientes, pois
proporcionam a mesma energia luminosa de outras lâmpadas com menor consumo de
energia elétrica, ou seja, são mais econômicas. Sabendo disso, considere uma residência que
apresenta 8 lâmpadas fluorescentes compactas de 11 W que ficam acesas 5 horas por dia.
a) Qual o consumo de energia elétrica, em kWh, apresentado por essas lâmpadas em 1
mês (30 dias)?
b) Se cada uma das lâmpadas for trocada por uma lâmpada de LED de 7 W que
proporciona a mesma iluminação, qual será o novo consumo de energia elétrica, em
kWh, apresentado por essas lâmpadas em 1 mês (30 dias)?
c) Qual a quantidade de energia economizada em 1 mês (30 dias) com a troca das
lâmpadas?
d) Em um local onde o kWh custa R$ 0,50, qual o valor economizado anualmente na conta
de energia elétrica?

Answers

Answer:

umm I'm not sure how to answer this

What is molting????????

Answers

A dragonfly in its radical final moult, metamorphosing from an aquatic nymph to a winged adult.

In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is the manner in which an animal routinely casts off a part of its body (often, but not always, an outer layer or covering), either at specific times of the year, or at specific points in its life cycle.

Moulting can involve shedding the epidermis (skin), pelage (hair, feathers, fur, wool), or other external layer. In some groups, other body parts may be shed, for example, wings in some insects or the entire exoskeleton in arthropods.

What is the answer pleaseeee

Answers

Answer: c

Explanation:

Compare and contrast adaptations displayed by animals and plants that enable them to survive in different environments

Answers

Answer:

All organisms need to adapt to their habitat to be able to survive. This means adapting to be able to survive the climatic conditions of the ecosystem, predators, and other species that compete for the same food and space.

HELP!!

Question 1 (2 points)
What is the phenotypic ratio of the F2 generation?


Answers

Well i hope you understand what a ratio. First we take a look at how most of the color is black so thats our biggest next we look t what color is least which is orange now count the orange and the yellow and separate them!! Theres your answer :)

Answer:

9:7

Explanation:

We get the dominant phenotype in plants that have at least one dominant allele of EACH of the two genes; otherwise we get the recessive phenotype. So, the observed ratio in the F2 generation is 9:7.

So, this is your answer.

Fossils and Evolution On Study Island

A team of scientists are studying three different layers of sedimentary rock to learn about a particular reptile species. In the layer of rock that is closest to the Earth's surface, the reptiles' teeth fossils are found to be short and straight. In the layer below, the reptiles' teeth fossils are found to be long and straight. In the layer below that, the reptiles' teeth fossils are found to be long and curved.


Based on this information, the reptiles today most likely have
A.
long, straight teeth.
B.
no teeth.
C.
long, curved teeth.
D.
short, straight teeth.

Answers

Answer: short, straight teeth

Explanation: study island

limestone can be a very jointed type of rock. which drainage pattern would you expect to see as a result

Answers

The answer is Trellis

The drainage pattern one is expected to see in the limestone is trellis. The correct option is C.

What are trellis drainage pattern?

Trellis drainage patterns form when sedimentary rocks like limestone are rolled up or slanted and then stripped away to varying degrees depending on their strength.

The Rocky Mountains of British Columbia and Alberta are prime examples of this, with trellis patterns found in many of the drainage systems.

Thus, the correct option is C.

For more details regarding trellis drainage pattern, visit:

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The missing options of the question are:

A. DendriticB. RadialC. TrellisD. Rectangular

no links! pls help

What process is occurring in the illustration?


a) classic ecosystem


b) climax community


c) primary succession


d) secondary succession

Answers

classic ecosystem

Explanation:

because i love

Answer: D

Secondary Succession

Explanation:

I took the quiz.

An airplane flies from Minneapolis to Chicago in 62 minutes.
If it is 572,000 meters from Minneapolis to Chicago, what is the plane's average speed?
A. 2,000 m/s
B. 355 m/s
C. 154 m/s
D. 119 m/s

Answers

Answer:

154m/s

Explanation:

Average speed= distance(m)/time(sec)

Distance=572,000metres

Time=62×60=3720seconds

As=572000/3720=153.76aproximately154m/s

Why do your mitochondria come from your mom?

Answers

Answer:

the mitochondria in mammalian sperm are usually destroyed by the egg cell after fertilization.

Explanation:

Choose the mutation that you think has caused Calix’s calico fur coloring. Form a hypothesis to explain your reasoning. You will be able to revise your hypothesis as you collect more data. ( Ya'll i need a hypothesis )

Answers

The complete question is as follows:

Hypothesis Cas More Information: Here is a summary of the data, Mass of DNA Cat Res per Coll Mother Father Calix 1520 fg 1495 fg 1535 fg . The mass of an X chromosome is 40 fg. • Point mutations do not change the mass of DNA. • In chromosomal rearrangement, some daughter cells gain parts of chromosomes and some lose parts of chromosomes. • In nondisjunction, daughter cells gain a whole entire chromosome. Obe Exp Нур 는 Exp Point Mutation in Melosis Chromosomal Rearrangement Nondisjunction Choose the mutation that you think has caused Calix's calico fur coloring. Form a hypothesis to explain your reasoning. You will be able to revise your hypothesis as you collect more data.

Answer:

The correct answer is - non-disjunction.

Explanation:

Calix's calico has an X chromosome gene that determines the color of fur. One allele forms orange fur and the other give rise to black. In heterozygous give rise to orange patches on black.

Mother has autosome and 2-X chromosomes.

Mass of 2 X chromosomes will be

= 40*2

= 80fg

So mass of autosomes = 1520-80

= 1440fg

Mass of sex chromosomes in father is = 1495-1440

= 55fg

So the mass of Y=55-40

= 15fg

It is clear that the mass of DNA of Calix is exactly 15 more than DNA of the mother. So we can say that Calix has an entire Y chromosome in extra.

So the answer is non-disjunction.

The right option is - non-disjunction.

Information regarding Calix’s calico:

It comprises of X chromosome gene that measured the fur color. In the case of heterozygous, it provides the increment with respect to orange that patches on black.

Since Mother has autosome and 2-X chromosomes.

So,

Mass of 2 X chromosomes should be

= 40*2

= 80fg

Now

The mass of autosomes should be

= 1520 - 80

= 1440fg

Now

Mass of s-ex chromosomes in father should be

= 1495-1440

= 55fg

Now finally the mass of Y is

= 55 - 40

= 15fg

Based on the above calculation, the mass of DNA of Calix should be 15 i.e. more than the DNA of the mother.

Learn more about the mutation here: https://brainly.com/question/8334911

A substace put in a space or cantainer to fill it, usually applied in wood to fill up cracks and grooves

Answers

Answer:

Glue and sawdust.

Explanation:

Glue and sawdust are the substances that applied in wood to fill up cracks and grooves. You can use the glue and sawdust method to fill the gaps present in the wood. This method is a quick and easy solution that successfully fill up the gaps and grooves on the wood. The method of using this method is, first fill the gap with a small amount of wood glue, then rub sawdust into the gap which attached the saw dust with itself and the gaps are filled.

Summarize the differences between early succession, mid-succession, and late succession?

Answers

On primary succession newly exposed or newly formed rock is colonized by living things for the first time. And in secondary succession an area that was previously occupied by living things

How is the Sun different from planets?
a. the sun produces its own light, but planets only reflect light.
b. the sun is spherical in shape, but planets are not.
c. the sun exerts a gravitational pull on objects around it, but planets do not.
d. the sun is made up of elements not found on any of the planets.

Answers

Answer:

A is correct! I want to be an astronaut when I grow up so trust me!

Explanation:

Answer:

The right answer is a (the sun produces its own light but planets only reflect light)

What does biodiversity mean ?

Answers

Answer:

biodiversity mean Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth.

Explanation:

Answer: Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans.

Explanation: Usually three levels of biodiversity are discussed—genetic, species, and ecosystem  diversity.

Genetic diversity is all the different genes contained in all individual

plants, animals, fungi, and microorganisms. It occurs within a species as

well as between species.

Species diversity is all the differences within and between populations

of species, as well as between different species.

Ecosystem diversity is all the different habitats, biological communities,

and ecological processes, as well as variation within individual ecosystems.

Can someone plz help me on this science its due today and STAAR test is next week

Answers

Answer:

answer is c

Explanation:

hope it helps!!!

Yep it’s c I can confirm it. Good luck on your test

Which of the following is not a benefit to humans from biodiversity?

A. Many medications are made from living organisms

B. Enjoyment from recreational activities

C. We have a variety of products produced for clothing, food, and other items

D. The weather is more comfortable

Answers

For me it's letter A.

Because B and C and D are benefits of biodiversity....So that's why,for me it's letter A.

Well,don't trust me if you don't want to

All you have to do is give me some inspiration and I'll give points cause I would really like some inspiration please​

Answers

Answer:

ZOOM PLZ COME WE R BORED

MEETING ID 798 4170 2552

PASSWORD:XCNeV3

Explanation:

Wild flowers swaying in a abandoned field in the Netherlands

Hope that helps not sure what kinda inspo u were looking for

Which most likely happens to the ovary of a flower after it is fertilized?

a. It produces pollen.
b. It grows into a fruit or vegetable.
c. It grows new sepals to attract insects.
d. It completes photosynthesis.

Answers

Answer:

It grows into a fruit or vegetable.

Having trouble with this textbook question. Can anyone help me out?
"You learned that the length of the cell cycle varies between cell types. Predict which of the three phases of the cell cycle varies"

Answers

Answer:

Oh well Thx that could really help

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