According to the information on the periodic table, which of the following could represent element X?
A. Aluminum (Al)
B. Sodium (Na)
C. Chlorine (Cl)
D. Nitrogen (N)
Answers
chlorine because it has 7 electrons on the outer shell
Related Questions
where in the bone are red blood cells made?
periosteum
compact bone
spongy bone
joint capsule
Answers
Answer:
red blood cells or formed in the red bone marrow of bones
Can someone plz help Me? :(
Answers
Answer:
C
Explanation:
I think it's c, but I might be wrong
What is the difference between sex-linked traits and autosomal traits in humans?
A.
Sex-linked traits only affect females, while autosomal traits affect both males and females.
B.
Sex-linked traits refer to genes that are on the X and Y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.
C.
Sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex.
D.
Sex-linked traits are passed on through the X and Y chromosomes, while autosomal traits are passed on through the other 22 chromosomes.
Answers
Answer:
the answer would be b
Explanation:
during which phase of mitosis are the spindle fibres formed around the sister chromatids?
Answers
Answer:
Metaphase
Explanation:
In prophase, spindle fibers start emerging from the centrosomes. In metaphase, the spindle fibers attach to the sister chromatids.
Which statement best describes these cells?
Х
Cell A
Cell B
Cell Blacks vacuoles while cell A has them.
DNA would not be found in either cell A or cell B.
Both cell A and cell
use energy release from ATP.
Both cell A and cell B produce antibiotics.
Answers
Answer:
cell blacks vacuoles while cell A has them
in an El nino event, surface temperatures of the pacific oceans are above average for at least a year. what effect, if any, would warmer temperatures have on the growth of a kelp forest ecosystem on the california coast?
Answers
El Niño is a phenomenon that impedes warm water to move westward and upwellings events. The kelp forest ecosystem is negatively affected by the rise in water temperature, lack of nutrients, and consequent effects.
-------------------------------
kelp forestThe kelp forest is a large population of brown algae that live in marine cool and relatively shallow waters rich in nutrients.
The population density is so high that they are considered to be marine forests, accomplishing many ecosystemic services, such as
absorbing CO₂, releasing a significant amount of O₂, protecting the coasts from waves erosion, and decreasing acidification.They are shelter and source of food for many different species, becoming one of the most diverse and productive habitats.
El Niño Event
The El Nino Southern Oscillation -ENSO- phenomenon occurs due to a complex system of climatic oscillations between the ocean and the atmosphere.
This phenomenon causes significant perturbations in the usual pluvial regimens in the tropics. It provokes
• dry seasons in areas where it usually rains
• rainy seasons in desertic regions.
ENSO phenomenon is dominant in the global climate system.
Under El Niño conditions
A tropical and weak stream in the Pacific acquires strength while the opposite streams debilitate. This change impedes warm water go westward, remaining on America's west coasts. Upwelling does not occur on the America's coasts. In some regions, temperatures rise, and unusual precipitations occur in desertic or dry areas -Atacama desert-. Other affected areas are Eastsouth Asia, Australia, and New Zealand, where there are fewer precipitations and cooler temperatures. Rainfall drops below the average, affecting crops and livestock. Effect of warmer temperatures on the kelp forest
The kelp forest is very sensitive to temperature changes. As a fact, the forest distribution depends on temperature as a limiting factor.
El Niño event has a damaging influence on these forests, not only because they reduce the availability of nutrients but also because they produce a significant change in water temperature.
Ocean warming negatively impacts algae reproduction, growth, and survivorship.
Algae are damaged by the temperature rise to the point of being eliminated.
Associated species composing the marine ecosystem are affected too since they have no refuge, food and live in environments with a higher concentration of CO₂, lower O₂, and more acidification.
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You can learn ore about El niño event at
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Need help ASAP with this answer
Answers
Answer:
C.
Explanation:
Animals found in the tundra include the musk ox, the Arctic hare, the polar bear, the Arctic fox, the caribou, and the snowy owl. Many animals that live in the tundra, like the caribou and the semipalmated plover, migrate to warmer climates during the winter.
I hopes it's help :)
How are these cells classified
Answers
2. Which organisms make carbon dioxide in the
atmosphere available for all living organisms in
the ecosystem?
Answers
Answer:
land plants, bacteria, and algae
Explanation:
What is the atomic number of the atom shown?
A) 3
B) 13
C) 14
D) 27
Answers
Answer: B - 13
Explanation: :)
Answer:
I think B
Explanation:
Please help me with this it’s so hard
Answers
Answer:
1: Frond's
2:Pistil
3:Gametes and spore's
4: photosynthesis
5: Spore
6:Stigma or ovule
7:Ovary
Hope this helps!
3. A strain of cells undergoes a mutation that increases the permeability of the inner
mitochondrial membrane to hydrogen ions.
a) What effect would you expect this mutation to have on the process of cellular
respiration? 12
b) Assuming the mutant cells can survive, how might the metabolic requirements of
these cells differ from those of a non-mutant strain of the same variety? 12
Answers
A mutation that involves the permeability of the inner mitochondrial membrane to protons (H+) will affect the amount of ATP. If mutant cells can survive, then they will need more energy to create a suitable gradient.
Cellular respiration is a series of metabolic reactions by which aerobic cells can generate energy in the form of ATP by using the chemical energy stored in the foods.
Cellular respiration can be divided into three sequential stages: glycolysis, the Krebs cycle (also called the acid citric cycle) and oxidative phosphorylation.
During oxidative phosphorylation, the transport of electrons across the inner mitochondrial membrane is coupled to the generation of an electrochemical proton (H+) gradient, which is then used to generate ATP by means of a protein complex known as ATP synthase.
Learn more about oxidative phosphorylation here:
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which organism has a central brain
1 hydra
2 sponge
3 flatworm
4 fish
ASAAAPPPPP
Answers
Answer: flatworm
Explanation:
Which pair of archaeological techniques provide the most similar information about an artifact?
А.
floatation and horizontal position
B.
vertical position and carbon-14 dating
D.
horizontal positioning and vertical positioning
C.
carbon-14 dating and screen sifting
Answers
The pair of archaeological techniques that provide the most similar information about an artifact are carbon-14 dating and screen sifting, which is option C. Carbon-14 dating is a technique used to determine the age of an artifact based on the decay of carbon-14 isotopes.
Archaeological techniques are used by archaeologists and other researchers to gather information about artifacts and other cultural and historical materials. Different techniques are used depending on the nature of the artifact and the specific research questions being asked. The two archaeological techniques that provide the most similar information about an artifact are carbon-14 dating and screen sifting.
Learn more about archaeology here.
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MPF stands for mitotic promoting factor and this is a[n)...
A. proto-oncogene
B. oncogene
C. cdk-cyclin complex
D. tumor suppressor gene
Answers
state one way of monitoring the activity of the heart other than measuring pulse
Answers
Answer: fitness tracker or a strap that you put against your chest
Explanation:
what is mauna loa volcano intensity?
Answers
Answer:
And over time, volcanoes made from low lava viscosity are wide and have a shallow slope; these are known as shield volcanoes. Classic examples of shield volcanoes are Mauna Kea and Mauna Loa in Hawaii, as well as Olympus Mons on Mars. When lava has a high viscosity, it's very thick and doesn't flow very well at all.
9,600 cubic miles
Mauna Loa is the largest volcano on Earth with an estimated volume of 9,600 cubic miles (40,000 cubic kilometers). It makes half of the area of the Island of Hawaii. Mauna Loa began to form nearly a million years ago. There is a caldera, Mokuaweoweo, at the summit and rift zones extend to the northeast and southwest.
Explanation:
where in the respiratory system does gas exchange occur?
Answers
Answer:
lungs
Explanation:
its were the oxygen and carbon dioxide is being separated
3. Name the division of the peripheral nervous system that is activated in each of these
examples:
a. You are startled when a friend pulls a practical joke and spooks you with a loud sound.
b. You move your arms and legs to take an evening walk.
c. Your stomach makes a gurgling sound as it digests your lunch.
d. Feeling a little stressed? You take a few breaths to calm down.
e. You are at the line, waiting for you race to start, and your heart begins to pound.
Answers
A startle reflex (a), digestion (c), breathing (d) and heart pumping (e) are responses of the ANS, while arm/leg movement (b) is a response of the SNS. They are major divisions of the PNS.
The peripheral nervous system (PNS) serves to connect the central nervous system to different organs, limbs, and skin.
The PNS can be divided into Somatic Nervous System (SNS) and Autonomic Nervous System (ANS).
The Somatic Nervous System is responsible for controlling the voluntary movements of the body.
The Somatic Nervous System is responsible for regulating the involuntary movements (reflexes) of the body.
Learn more about the peripheral nervous system here:
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Most of the food and waste materials that move into and out of a cell pass through
A.receptor proteins.
c. enzymes.
b. marker proteins.
d. channel proteins.
Answers
Which of the following includes organisms that can use energy from the sun to make food?
Answers
Answer:
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.
Which planet has a dramatic greenhouse effect, no moons and acid in its' clouds? *
Options are
Mercury
Venus
Saturn
Neptune
Answers
Answer: venus
Explanation: Venus' thick atmosphere traps heat creating a runaway greenhouse effect – making it the hottest planet in our solar system with surface temperatures hot enough to melt lead. The greenhouse effect makes Venus roughly 700°F (390°C) hotter than it would be without a greenhouse effect.
Question 2 of 10
Which of the following is a description of a resource that belongs to a country
with a high carrying capacity?
A. Homes are small and house many people.
O B. Food is brought in from other places.
C. Water comes directly from bodies of water.
OD. Food is not always available.
SUBMIT
Answers
Answer:
c
Explanation:
cause it comes straight from the creek behind the houses
Carrying capacity defines the population size supported by a region. Water coming directly from water bodies suggests a high carrying capacity. Thus, option C is correct.
What is carrying capacity?Carrying capacity is the quantity of the organisms or the population that can be supported in a habitat without any degradation and damage to the environment. It is a crucial factor in ecology.
It can be high and low depending on the availability of water, food, and space. A high carrying capacity can support a large population than a low carrying capacity because of the abundant resources.
Small homes with large family members, imported food items, and scarcity of food are limiting factors that are not the property of the high carrying capacity, instead, abundant availability of water is the characteristic of the high carrying capacity.
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point mutations, such as silent, nonsense, and missense mutations, are caused by
Answers
Answer:
damage to DNA during replication process
refer to vs map: gene expression—flow of information from gene to protein tour. in which ribosome site would you find the uncharged trna?
Answers
Answer:
Elongation
Explanation:
Peptidyl Transferase takes the peptide chain (amino acids) from the tRNA in the P-site and attaches it to the amino acid in the A-site. The now-uncharged tRNA in the P-site is expelled from the Ribosome (possibly through the E-site). The Ribosome moves down the mRNA by one codon.
Would you support introducing Large Mouth Bass into California pond ecosystems in an attempt to control the American Bullfrog population?
Answers
The voyage of the H.M.S Challenger was important because (1 point)
O it was a race won by Americans, to demonstrate superior sailing and ship building skills
O navigators were able to circumnavigate the globe for the first time in history, demonstrating celestial
navigation skills.
Ophysicists, chemists, and biologists conducted experiments and gathered collections that changed
exisisting scientific knowledge about the oceans.
O the first known data gathered about ocean currents and the Gulf Streams influence on weather were
documented by biologists and meteorologists.
Answers
Answer:
Physicists, chemists, and biologists, conducted experiments and gathered collections that changed exisisting scientific knowledge about the Oceans.
Explanation:
Trust in me
what is an environmental concern regarding genetically modified plants that are resistant to herbicides and the other similar plants located near them?
Answers
Answer:
Biodiversity Loss
Which of the following are examples of sexual reproduction?
A yeast offspring grows out of the body of its parent in a process called budding.
A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
A bacterium copies its DNA and divides into two daughter cells in a process called binary fission.
A piece of a starfish is broken off and grows into a new starfish in a process called regeneration.
A frog releases sperm over eggs that were laid by another frog, and these cells fuse together. help :,)
Answers
Answer:
A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.
Explanation:
Sexual reproduction is brought about by fusion of male and female gametes. Reproduction where a part of an existing organism develops into another organism is asexual.
Which phase of the systems development life cycle would describe in detail the desired features of the system
Answers
Answer:
Phase 3
Explanation:
Phase 3 of the systems development life cycle describes the desired features and operations of the system. The objective of the systems design phase is to transform all requirements into detailed specifications covering all aspects of the system. It should also assess and plan for security risks. Finally, approval to progress to the development phase must be granted to complete the systems design phase.