Answer:
34
Explanation:
it's atomic number is the same as it's number if protons
2- Clasifica los siguientes sistemas en abierto, cerrado o aislado:
a. una cazata de helado c. una lata de arvejas e. un vaso con jugo
b. una bolsa de 1kg de arroz sin abrir d. un termómetro f. un perro
3- Clasifica los siguientes sistemas en homogéneo y heterogéneo e indica el número de fases:
a. limonada con hielo c. agua y aceite e. agua gasificada
b. agua y acetona d. tierra, arena y piedras f. café con leche
4- En un laboratorio se realiza un experimento para estudiar la flotabilidad de cuerpos
en el agua.
a. Indica qué partes componen el sistema y cuál es el ambiente.
b. Clasifica el sistema como abierto, cerrado o aislado.
c. ¿En qué estado físico está cada componente del sistema?
d. ¿Cuántas fases tiene?
e. ¿Es homogéneo o heterogéneo?
5- El recipiente de la imagen tiene agua coloreada y está tapado.
a. Identifica qué partes componen el sistema.
b. Clasifica el sistema en abierto, cerrado o aislado.
c. ¿El sistema es homogéneo o heterogéneo?
d. Si enfriamos el recipiente hasta obtener hielo,
¿cambiará la masa del sistema? Justifica
6- Se está estudiando la vida de los peces en una pecera que se encuentra encima de una mesa en el laboratorio.
a. Dibuje lo descrito arriba y señale cuál es el sistema, el límite y cuál es el ambiente.
b. Clasifique el sistema según la interacción con el ambiente, justificando su respuesta.
c. ¿Es homogéneo o heterogéneo?
Answer:
Las respuestas se dan a continuación.
Explicación:
1) Una búsqueda de helado y un vaso con jugo es un sistema abierto, un perro es un sistema aislado mientras que una bolsa de 1 kg de arroz sin abrir, un termómetro y una lata de guisantes es un sistema cerrado.
2) la limonada con hielo, el agua carbonatada, el agua en acetona y el café con leche son sistemas homogéneos mientras que el agua y el aceite, la tierra, la arena y las piedras son sistemas heterogéneos.
3) El recipiente de la imagen tiene agua coloreada y está tapado.
B. el sistema está cerrado.
C. El sistema es homogéneo.
D. Si enfriamos el recipiente a hielo, la masa del sistema no cambiará.
4- Se estudia la vida de los peces en una pecera que se encuentra sobre una mesa en el laboratorio.
a. El sistema es abierto y el medio ambiente es acuático.
B. Es un sistema heterogéneo.
Land from which water runs off into streams is known as a
1 watershed
2 divide
3 channel
Answer
The answer is watershed and that is an area that catches all the rain and snow.
*PLEASE HELP*
Which of the following best describes the role of the nervous system?
A. responds to all internal and external stimuli
B. detects only stimuli from outside an organism
C. responds only to stimuli occurring inside an organism
D. detects internal and external stimuli at the cellular level
I think it is A! The nervous system reacts to all internal/external, such as hormones, touch, sound, disease, etc
Why do cells need to carry out
cellular respiration?
A. to obtain water
B. to release the energy in food
C. to make copies of itself
Answer:
B
Explanation
They have to realease things somehow
The pH of a solution is a measure of how acidic or basic it is. The greater the pH, the more basic the solution is. Corals and other marine invertebrates require less energy to make their exoskeletons and shells when ocean water is slightly basic. As carbon dioxide concentrations in Earth’s atmosphere rise, ocean water absorbs carbon dioxide and becomes more acidic. This process is called ocean acidification. How do you think ocean acidification will affect the coral reef?
Explanation:
Because coral reefs have limestone (calcium carbonate), the coral reefs will be greatly affected. The increase in hydrogen ions in the ocean will corrode the coral reef, making it inhabitable for species. This will affect the crabs that get their food and the community that lives within in it. Making countless of species to loose their lives and their way if living.
Alice wanted to see if a new premium gasoline would give her more kilometres per litre. She filled her car with the new gasoline and went on a long trip. When she calculated her mileage, she discovered that she has gone 40 kilometres further on this tank of gas than she went on a tank of regular gas when she was driving around town as usual. She decided to buy the premium gas from then on to get better mileage. What are the errors in this experiment?
Answer:
She didn't cover the same distance for the new premium gasoline and regular gas
Explanation:
Easy question about plant water loss?
Answer:
B,C,F
Explanation:
Please help ;(
question and answer options in photo
zoom in if needed
Thank You :D
Answer:
B Decomposers
Explanation:
There is nothing to eat the dead animals/ leaves for when they die
Answer:
I believe the answer is, B
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?
Answer:
umm I'm not sure how to answer this
difference between blood and lymph
Explanation:
Hope this is helpful
[tex]\LARGE{\color{pink}{\textsf{\textbf{⠀❥คɴᎦᴡєя⠀}}}} [/tex]
Blood has RBC's, WBC's, platelets and a fluid called plasma. Whereas lymph has WBC's and watery fluid. They both have immune and also circulatory functions in them. One of the major differences between them is that blood flows through blood vessels and lymph through lymphatic vessels.
_________________
~ hαppч lєαrníng ~
HELP!!
Question 1 (2 points)
What is the phenotypic ratio of the F2 generation?
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.
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.
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)
A substace put in a space or cantainer to fill it, usually applied in wood to fill up cracks and grooves
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.
will give 15 points and brainliest just awnser like
1.ghkdigh
2.ighdf
3.ygf
and so on thanks!
Answer:
1.Law of conservation of energy
2. Energy transformation
3.Friction
4. electric, thermal
5. Kinetic, Potential
6. Potential, Kinetic
7.Kinetic
8.Radiant, electrical
9. Electrical
10. Radiant
can someone help me plzzzzz
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
Consumers in the reef can be further classified as filter feeders, or organisms that eat plankton by filtering water; grazers, or organisms that feed on organisms that don’t move; and predators, or organisms that eat other animals. List at least one example of each.
Filter Feeders -
Gazers -
Predators -
Answer:
Filter feeders-tubeworms, basket stars, clams,& sponges... there are many more
Grazers- Sea urchins, damselfish, surgeonfish & cobalt algae... and more
Predators- whales, sharks, barracudas, &dolphin... several more
Muliple choices
Hope this helps :)
Compare and contrast adaptations displayed by animals and plants that enable them to survive in different environments
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.
state two differences between tastic and nastic movement in plants
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
Identify 3 characteristics that plants share with algae.
Explanation:
I am sure you are clear. Thanks.
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.
Answer:
It grows into a fruit or vegetable.
1. what is carrying capacity?
2. What are the variables in carrying capacity?
3. What is a sustainable food source?
4. What is a lasting food source?
5. Why is it important to control the species population?
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?
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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Can someone plz help me on this science its due today and STAAR test is next week
Answer:
answer is c
Explanation:
hope it helps!!!
Which of the following is true about genes?
A.
In humans, genes are passed to an offspring from two parents.
B.
The genes of a particular organism can never change throughout its lifetime.
C.
Genes are made up of smaller molecules known as chromosomes.
D.
Genes are responsible for all the traits of an organism.
Answer:
i think its A
Explanation:
All of Earth's biomes considered together represent:
A. population
B. community
C. biosphere
D. ecosystem
All of Earth's biomes considered together represent biosphere.
What is a biome?A biome is an amalgamation of plants and animals with similar traits for their habitat. Biomes can be found in many different locations. They are biological communities that have developed as a result of the area's common physical climate.
What is a biosphere?The biosphere is a small area of the earth's surface where soil, water, and air work together to support life. Only in this region is life possible.
What is a population?A population is a collection of people who can interbreed, share resources, or compete with one another for those resources.
What is a community?A community is defined as a collection of individuals belonging to various species who reside in the same region.
What is an ecosystem?An ecosystem is a biotic and abiotic component-based functioning unit of nature. Air, water, and soil are examples of abiotic components. The biotic components are producers, consumers, and decomposers.
To learn more about biome and biosphere here,
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Which of the following mechanisms is the correct sequence of events that takes place during the plant responses to internal and external signals?
A) transduction, reception, and response
B) reception and transduction
C) reception, transduction, and response
D) reception and response
Answer:
C) reception, transduction, and response
Explanation:
Plant signaling means that information is conveyed from receptor systems to effectors within and between plant cells.
Signals can be of chemical form or electrical form.
Plant responses to internal and external signals take place in the following sequence:
Reception
Transduction
Response
So, option C) is correct
Drag the tiles to the correct boxes to complete the pairs. Identify the types of inheritance based on the expression of alleles in the organism. dominant recessive multiple presence of many alleles for the trait to be expressed  presence of two alleles for the trait to be expressed  presence of a single allele for the trait to be expressed 
Answer:
1-Dominent 2-Multiple 3-recescive
Explanation:
but pls try and work it out multiple times bc I got this but u might get differently
diagram represent the generalized animal cell
Answer:
penge like please at pa follow
Refer to the image attached.
Look at image please
Answer:
This is easy: 2 Hydrogen and 1 Oxygen!
Explanation:
H20 means 2 H and 1 O
Answer:
Explanation:
which of the following is correct about cells?
Answer:
The answer is the c part that states, in prokaryotes, there are no membrane-bound organelles.
The organelles are surrounded by the single or double membranes such as Lysosomes, mitochondria, nucleus, Golgi Bodies, chloroplasts, Endoplasmic Reticulum and so on.
However, these all are not present in the prokaryotes type of cell.
Explanation:
please mark this answer as brainliest
