Answer:
D
Explanation:
Hope it helps#CARRYONLEARNINGEggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
What is Tomcod populations?A benthopelagic piscivore, the Atlantic Tomcod is also known as frostfish or tommy cod. Although large ones are allegedly caught less frequently than they once were in estuary rivers, it is still abundant around the seacoast.
Although anadromous, Atlantic tomcod do not migrate very far between fresh and salt water. In shallow brackish or fresh water, sand and gravelly bottoms are where eggs are laid. Masses of eggs sink to the bottom.
Within 24 hours of hatching, newly hatched larvae swim to the surface to breathe surface air before their pneumatic duct closes. Young-of-the-year may spend their first spring and summer in fresh or barely brackish water, but they eventually move into estuaries and nearshore waters.
Therefore, Eggs from tomcod without this allele can hatch in rivers with or without PCBs, and eggs from tomcod with this allele can only hatch in rivers without PCBs.
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What type of reproduction involves forming offspring from two
parents?
a Asexual
b Sexual
C Mitosis
int?
d Replication
Answer:
Sexual
Explanation:
Sexual reproduction involves two parents and produces offspring that are genetically unique. During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote. Meiosis is the type of cell division that produces gametes.
Hope it helps
Answer: Sexual, I believe.
Explanation:
If it were Asexual, it'd only involve one parent. Mitosis has daughter cells have the same number of chromosomes as parent cells (heavy emphasis on cells as in plural cells.) And replication is just copying a cell.
Forgive me if I'm wrong!
A sexually mature seahorse can produce thousands of offspring. What is the BEST reason overproduction of offspring by marine organisms is considered to be a reproductive advantage?
It increases competition.
It decreases competition.
It contributes to the organism’s biological success.
It causes stress on the environment which will apply stress to the creature to adapt.
Answer: D
Explanation:
There are large number of predators present in marine environment. Overproduction of offspring contributes the biological success of the organism.
What is overproduction?Overproduction is referred to the production of large number of species which can be physically supported by ecosystem.
Overproduction support survival of the fittest, by improving the genetic line.
Since the predators are more so, only that organism will survive who can adapt according to the that. This can contributes in organism's biological success.
Thus, the correct answer is C.
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Biologically speaking what is the only purpose of reproduction
Answer: To prevent extinction
Explanation: This is to say the main purpose of reproduction is for the continuation of species.
“Explain how chemical energy for use in the cell is generated by electron transport and chemiosmosis”
PLEASE HELP!!
*50 points to whoever can answer that question and draw a flowchart, thank you*
Answer: The ETC is the last part of cellular respiration. In the first steps of cellular respiration (glycolysis and Krebs cylce), electrons are freed from glucose derived molecules. In the ETC the electrons are passed on through a series of proteins in the inner membrane of the mitochondria. The electrons in a sense 'flow' to lower energy levels (see image), they lose energy in the process.
Energy produced by H+ travelling via ATP synthase and down a concentration gradient is used by chemiosmosis. ADP is phosphorylated with this energy to create ATP.
What is Chemiosmosis?Chemiosmosis is the passage of ions along their electrochemical gradient through a semipermeable transmembrane domain structure. Adenosine triphosphate is created when hydrogen ions pass a membrane during photosynthesis or cellular respiration. This is a significant example.
The process of ions (often H+ ions, commonly referred to as protons) diffusing across a membrane that is selectively permeable is known as chemiosmosis. Chemiosmosis produces a concentration gradient of a diffusing ion from across membrane, similar to osmosis. Potential energy that can perform work is present in concentration gradients.
Thus, energy produced by H+ travelling via ATP synthase and down a concentration gradient is used by chemiosmosis. ADP is phosphorylated with this energy to create ATP.
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Please I beg you help me. Contrast solids,liquids, and gases on the molecular level
gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place.
For each condon ,find the correct tRNA
The amount of energy available in the form of nonrenewable resources is finite. You can personally make a difference in making sure that the world continues to have enough energy to supply electricity to everyone who needs it. Today’s assignment is an opportunity to do research into ways that you can make an impact.
Your research will focus on creating a plan that you want to present to one of the following:
your family
a club or team that you are a part of
a community organization like your church or school
The purpose of your plan is to see the world’s energy last a long time. There are a couple of categories to consider, such as different ways to do the following things:
Use renewable resources (example: adding solar panels to a building)
Conserve energy (example: reducing the amount of electricity used)
Reduce, reuse, and recycle (example: planning a recycling drive)
Add “green spaces” (example: growing vegetables in a garden)
You need to find three websites related to your idea. Look for other individuals or groups that have accomplished a similar goal. Once you have found your websites, answer the following questions. Number each question and make sure to write your answers in complete sentences.
What project do you want to propose and who do you want to participate?
What are the three websites you found that helped you choose a project and/or described other people doing similar projects?
After reading their stories and thinking about your own ideas, describe your idea for your project. Think of your answer as your presentation of your idea to your group. Make sure to tell them what you want to accomplish and why it is important.
In your research, find a difficulty that others faced that you might need to consider. Explain the issue and how it might impact your plan.
Choose one story from your research that you found most inspiring. Share a quotation and explain why this was meaningful.
Answer:
This really was helpful I learn a lot which is meaningful
Molecules that do not contain carbon are called inorganic.
true or false
Answer:
The answer is false
Explanation:
because most carbon are harmful and are added by humans
List all the biotic and abiotic factors in figure 4
Answer:
1
Explanation:
In the gold rush of 1849, prospectors found a yellow mineral that appeared to be gold, but was harder and more brittle than gold. What is this mineral that came to be called “fool’s gold”?
Answer:
Pyrite
Explanation:
I hope this helps!
Answer:
Pyrite
Explanation:
I hope this helps!
Ok, do we live in or on earth?
Answer:
On, we live on the surface of Earth.
If we lived in it, we'd be near the core, or literally inside the earth's many layers.
Hope that helps! :)
-Aphrodite
Explanation:
What is the independent variable of great white sharks travelling distance?
Answer:
Each year, great white sharks migrate over long distances from their feeding grounds off the central California coast to other feeding grounds far away in the Pacific Ocean. ... That's one reason they migrate from one feeding ground to another, to take advantage of the seasonal bounty.
It's though that a shark can travel up to 50 miles in one day. While we cannot know this for certain as sharks have never been tracked this way, 50 miles is a good estimate
Why are organisms that reproduce sexually less likely to accumulate deleterious mutations ?
can anyone help me with this it would really help me out right now
Answer:
I think it's insects ....
The difference between pinocytosis and receptor-mediated endocytosis is that _____. Question 14 options: pinocytosis can concentrate substances from the extracellular fluid, but receptor-mediated endocytosis cannot. pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity. pinocytosis brings only water molecules into the cell, but receptor-mediated endocytosis brings in other molecules as well. pinocytosis increases the surface area of the plasma membrane, whereas receptor-mediated endocytosis decreases the plasma membrane surface area.
Answer:
The difference between pinocytosis and receptor-mediated endocytosis is that pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity.
Explanation:
Pinocytosis and receptor-mediated endocytosis are two types of endocytosis.
The first one consists of plasmatic membrane invaginations that capture extracellular fluid with different nutrients and sends it to the inside of the cell in vesicles. The second one, receptor-mediated endocytosis, consists of receptors on the outside of the plasmatic membrane and clathrin proteins on the interior side of the membrane. When the receptors are in contact with its specific molecule, a vesicle surrounded by clathrin proteins, is formed transporting specific molecules to the cell's interior.
Q.2. Describe the different phases of meiotic prophase – I. Mention the chromosomal events during each stage.
Prophase-I occurs over a long duration and involves several complicated changes in meiotic cell division. It is important because genetic recombineiion and variation in sexually reproducing organism occurs due to the events of this phase.
EXPLANATION:❈ Leptotene —
➥ The chromatin network opens out and threads become clear.
➥ The chromosomes are thin, slender and long.
➥ Chromosome number is diploid.
❈ Zygotene —
➥ Corresponding chromosomes become intimately associated.
➥ The process of pairing is known as synapse. It is so exact that pairing is not merely between corresponding chromosomes but between corresponding individual units.
➥ The chromosomes become shorter and thicker.
❈ Pachytene or Pachynema —
➥ The synaptic chromosomes become very intimately associated.
➥ The pair of chromosomes becomes short and thick.
➥ Crossing over occurs at this stage. Chiasmata are clearly seen.
❈ Diplotene —
➥ Homologous chromosomes start separating from one another.
➥ Chiasmata tend to slip out of the chromosomes. This is known as terminalisation of chiasmata.
➥ Chromosomes start separating out but the separation is not complete.
➥ Nuclear membrane and nucleolus start disappearing.
❈ Diakinesis —
➥ The bivalents condense further and get randomly distributed.
➥ The separation of paired chromosomes is almost complete.
➥ Terminalisation of chiasmata is almost complete.
➥ Nuclear membrane and nucleolus disappear.
Why cells divide and what happens to genetic material during cell division.
how do you know when a surface has produced more friction
Answer:
Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force.
Hard Rough Surfaces and Plowing
More plowing will result in a higher the friction coefficient, uplow, and thus higher sliding friction force.
A giraffe has a really long neck and feeds on the leaves of plants. How is having a long neck an adaptation that helps the giraffe to survive? (2 points) a It allows the giraffe to eat the plants faster than other animals. b It allows the giraffe to get food from tall trees that other animals cannot reach. c It helps the giraffe keep balance as it eats plant leaves. d It helps the giraffe run faster when attacked by predators.
Answer:
B.) It allows the giraffe to get food from tall trees that other animals cannot reach.
Explanation:
-
One of the distinguishing characteristics of a giraffe is its long neck. The neck has several important roles and specific functions Feeding. With the aid of its long neck a giraffe is able to reach leaves fruit and flowers high up in Vachellia or Senegalia. Formerly Acacia and other sought after tree species. Giraffe are thus equipped to exploit a band of foliage. So answer would be B
_________ inherited traits that increase an organisms chance of survival, also determine an organism’s niche.
Answer:
adaptation
Explanation:
1 : the act or process of changing to better suit a situation. 2 : a body part or feature or a behavior that helps a living thing survive and function better in its environment. adaptation
Answer: Adaptations
Explanation: Got it correct on ECAD T1 Summer 2023 NM-Biology S2
2. Which of the following plants might be specifically chosen to attract tiger swallowtail butterflies to a garden?
a. milkweed
b. tulip poplar
c. aspen
d. nasturtium
Answer:
b
Explanation:
Common host plants attract tulip tree
I haven't really gotten into much detail about this subject.
Hope this helps!
What happens when a muscle contracts?
It shortens
It lengthens
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[tex]\sf\purple{It\:shortens. }[/tex] ✅Muscle contractions are defined by changes in the length of the muscle during contraction.When muscles contract, they become shorter, stiffer and thicker.[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
what are given off as by-products of cellular respiration?
a. carbon dioxide and water
b. energy
c. food
d. oxygen
2. Why do we need carbohydrates ?Name three sources of carbohydrate in our food
Answer:
Carbohydrates are the body's main source of energy. In their absence, your body will use protein and fat for energy. It may also be hard to get enough fibre, which is important for long-term health.
Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie etc.
Explanation:
brainliest pls
10 points for each valid answer! Thanks.
There are many technologies that reduce the amount of carbon emissions into our atmosphere. Identify some examples of these technologies.
Answer:
Biomass Energy
Explanation:
Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, etc. The energy from these organisms can be burned to create heat or converted into electricity.
Hope this helps! :)
Which sentence best supports the idea
that fossils help us learn more about
the history of the earth?
Natural geological processes
bring layers of rock to the
surface.
Most animals of our past did
not fossilize.
wit
Speac
The largest dinosaur fossil
ever found was of a
Brachiosaurus.
sroamed the
posed to
slowly
d, the remains
Paleontologists know about
the diversity of life that has existed since the beginning of time
Answer:
D the remains Paleontologists know about the diversity of live that has existed since the beginning of time
Explanation:
fossils assist in understanding of evolution throughout the billions of years that the earth has housed living beings. it allows us to even date history
6th-grade plants stuff. Need Help!
Answer: 1. The ozone in smog also inhibits plant growth and can cause widespread damage to crops and forests. 2. The differences between the dog breeds are due to genetic factors. The basset hound and chihuahua are much shorter than the other dogs. ... All dogs belong to the same species, so these differences are due to genetic variations. Each dog inherits genetic traits from its parents, such as the type or color of hair. The differences between the dog breeds are due to genetic factors. All dogs belong to the same species, so these differences are due to genetic variations. Each dog inherits genetic traits from its parents, such as the type or color of hair. This information is found in segments of DNA called gene.
Explanation:
An ecosystem that retains structure & continues normal functions even when environmental conditions change is?
Resilient
Resistant
Reductive
Reconciled
Answer:
Resistant
Explanation:
A good aspect of the ecosystem can either be resistant or resilient when there is a disturbance or a form of deviation from the regular occurrence in the ecosystem structure, function, or both.
For an ecosystem to be resistant means it maintains structures and goes on with normal functions despite the disturbance or alteration in environmental circumstances.
Hence, in this case, an ecosystem that retains the structure and continues normal functions even when environmental conditions change is RESISTANT.
When are chromosome mostly condensed
Metaphase is a stage of mitosis in the eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled stage (they are at their most condensed in anaphase).
which of these statements about the stars' apparent motion in the night sky are true? choose all that apply ( it could be more than one answer)
A. The orbit of stars around the sun causes stars to appear to move in the night sky.
B. The orbit of stars around the center of the galaxy causes stars to appear to move in the night sky
C. The rotation of earth on its axis causes stars to appear to move in the night sky.
D. The orbit of earth around the sun causes stars to appear to move in the night sky.
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