Answer:
a struggle for existence, variation and inheritance. These are said to be the necessary and sufficient conditions for natural selection to occur.
Explanation:
A ___ is the reproductive part of the plant that covers and protects the seeds.
A. seed coat
B. fruit
C. flower
D. none of the above
Answer:
The correct answer would be pistil, which isn't one of the options, so pick option d., or none of the above.
Explanation:
Please brainliest answer :)
brief description of a sea otter
- - - - - - - - - - - - - - - - - - - - - - - -
Sea otters tend to inhabit the shores of the pacific (sometimes rivers, ponds, or lakes), a favorite habitat is the kelp forests on the coast of California. Mother otters even tie their babies (and sometimes themselves) in kelp leaves, keeping them near and preventing floating away when diving for food. This is a clear sign of intelligence, and they classify as mammals. Otters stay in groups led by a dominant male, but sometimes females will leave with their babies, or males will depart in search of their own group to manage.
- - - - - - - - - - - - - - - - - - - - - - - -
Have a good day/night!
~pinetreee
Cats' somatic cells have 38 chromosomes. Which of the following is true? A. 76 chromosomes B. 19 chromosomes. C. Their haploid cells have. D. 76 chromosomes .
It is true that if a cat's somatic cells have 38 chromosomes, the haploid cells have 19 chromosomes. Details about chromosomes can be found below.
What is meiosis?Meiosis is the process of division that results in the formation of daughter cells that are genetically different from the parent cell.
In meiotic division, the chromosome number of the parent cell reduces by half in the daughter cells or gametes.
This means that if a cat's somatic cells have 38 chromosomes, the haploid cells have 19 chromosomes as a result of meiotic division.
Learn more about meiosis at: https://brainly.com/question/11622266
#SPJ1
What abiotic aspects of an ecosystem can be affected by the biotic aspects?
Answer:
The abiotic factors will define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controling the biotic factors of an environment.
Explanation:
how the musculoskeletal and nervous system connected?
Answer:
your bones and muscles work together through a series of impulses and signals communicated between the brain and skeletal muscles
Explanation:
PLLZ HURRY! 65 POINTS! Which are the natural driving forces behind the carbon cycle? (Multiple choice answer BTW)
Answer:
Cellular Respiration and Photosynthesis are the driving forces of the carbon cycle.
HELP PLEASE 100 POINTS
Imagine researchers wanted to test different brands of sunscreen on pigs. Which of the comparisons would have the greatest effect on our ability to predict the efficacy of the sunscreen on humans?(1 point)
A.)Pigs and humans have similar amounts of hair covering their bodies.
B.)Pigs have immune systems that are very similar to those of humans.
C.)Pigs generally have slightly less mass than humans.
D.)Pigs and humans have very similar fat percentages in their bodies.
The comparisons would have the greatest effect on our ability to predict the efficacy of the sunscreen on humans is pigs and humans have very similar fat percentages in their bodies.
What is a sunscreen?Sunscreen is a cream that protect the skin from the UV rays of sunlight and prevent tanning of the skin.
Before, the products available for people, the products are generally tested on animals to verify any side effects or effect of cream.
Thus, the correct option is D.) Pigs and humans have very similar fat percentages in their bodies.
Learn more about sunscreen
https://brainly.com/question/20448560
#SPJ2
Unlike sound, light waves do not need a ◄)) medium (matter) liquid atmosphere gas PHAY B D) in which to travel through
Light waves do not need a medium in which to travel through from one place to another because light is an electromagnetic waves.
What is electromagnetic wave?Electromagnetic waves are those waves that requires no medium for their propagation. It is differ from mechanical waves because they do not require a medium to propagate.
So we can conclude that Light waves do not need a medium in which to travel through from one place to another because light is an electromagnetic waves.
Learn more about wave here: https://brainly.com/question/15663649
#SPJ1
The questions I need help with are in the photo
Answer:
Where do each of these reactions take place
- Photosynthesis takes place inside the chloroplasts
- cellular respiration takes place in the cell's mitochondria
Where do each of these three major steps take place (for eukaryotes)
- Glycolysis happens in the cytoplasm
- the Kreb's cycle takes place in the mitochondria
- the Electron transport chain occurs in the thylakoid membrane.
Explanation:
I really hope it helps!!!
A fox and an owl both eat forest mice. which type of relationship does the fox have with the owl?
mutualism
predation
competition
commensalism
parasitism
plaz answer quick
Answer:
Competition
Explanation:
They are both eating the same food, which means, in a given ecosystem, they essentially have to "share" food. If only one of the species existed in the ecosystem, they would have access all the forest mice. When two species eat the same food, they have to compete to make sure they can get to the mice first. "the early bird gets the worm"
Hope this helps!
Which mechanism of harm presents the greatest immediate threat at hazmat incidents?
A. Toxicity
B. Infection
C. Corrosivity
D. Energy release
Answer:
D.
Explanation:
it should be the energy release. I think that it’s this because, energy being released I think can cause death.
During the proliferative phase of the menstrual cycle,
The ovaries are works on developing the egg-containing follicles, the uterus is reacting to the estrogen made by the follicles, reva6mping the lining that was just rid during the last period. This is called the proliferative phase because the endometrium evolves thicker.
What is the proliferative stage?In the proliferative phase, the fibroblasts make collagen that rises wound stability, new epithelial cells cover the wound area, and capillaries join to form new blood vessels.
In the late phase, the production of new and collagen remodels the scar, blood vessels widen, and the epithelium.
Thus, The ovaries are working on developing the egg-containing follicles, the uterus is responding to the estrogen produced by the follicles, rebuilding the lining that was just shed during the last period
To learn more about proliferative stage click here:
https://brainly.com/question/965472
#SPJ1
The disappearance of many species during a relatively short time is known as _____.
Answer:
Extinction is the disappearance of all members of a species. A species is considered extinct from the moment the last individual dies.
Explanation:
Hope this helps
Answer:
Mass extinction.
Mass extinction is the term used for when a whole species disappears for good. Let's say I have a dinosaur species from tons of years ago. This dinosaur(1) notices something flying toward earth, and suddenly, boom. The dinosaurs all disappear because of a meteor in a short timespan.
Choose all the answers that apply.
Erosion:
removes fertile topsoil
is caused mainly by wind and water
can damage aquatic ecosystems
can decrease revenue from agriculture
is the breakdown of rock and other material
Answer:
Everything except can damage aquatic ecosystems
don't forget to mark brainlist
What characteristic do fossil fuels, soil, and sunlight all share?.
Answer:
They are all natural resources. They are all renewable resources.
Explanation:
What procedure did you use to complete the lab
The Lab Name Is Energy Transfer.
Answer: Energy transfer could come through condoctours (metal, or copper) to another object to power a bulb, speaker or any other electrical gizmo. (This can get a brainliest answer)
Answer:
Energy transfer is a process of passing energy into a source that lacks it, like a lightbulb. Energy can be transferred through conductors, that pass through the energy to the goal (lightbulb). Conductors are available inside of the cables you use to connect the power source and the lightbulb together, they are mostly metals, since they are good conductors. When you turn on your lightbulb, with it connected to the cable which is connected to the energy source, the energy passes through the conductor into the goal and turns on your lightbulb. There are other products to prevent energy transfer, they are called insulators, they stop energy transfer and keep it stored inside of them. An example of insulator is silicon, it stores the energy instead of transmitting it and keeps it stored inside without electrifying anyone when touching it.
ur wlcm :)
brainliest please?
What is the probability that a color blind woman marries a man with normal vision will have a color blind boy
Answer:
100%
Explanation:
The gene for color blindness is carried on the X chromosome. A woman who expresses the trait for color blindness has two copies of the allele for color blindness, one on each X chromosome. Since it is not carried on the Y chromosome, and boys always inherit their X chromosomes from their mothers, a son can only inherit a X chromosome with the allele for color blindness, meaning any son from this woman will be color blind.
Answer:
1/2
Explanation:
It depends on the hereditary gene that will dominate, whether the colour blindness or normal vision
Question 6 of 10
Which of the following is a function of your kidneys?
A. They send wastes removed from your blood to the large intestine.
B. They remove water from your blood when it is not balanced by
salts.
C. They add salt to your blood if you drink too much water.
D. They add water to your blood if you eat too much salt.
All organisms have the same basic needs.true or false
True
Explanation:
I learned this in science
begging for help!
Science helps people learn about the way the world works. What is the goal of technology?
A. to improve the way science operates
B. to make electronics for everyday use
C. to make things that solve problems
D. to design new scientific experiments
Which action is necessary to halt the decline in biodiversity?
A. continue using fossil fuels at the present rate
B. adopt laws that address issues of economy over environment
C. continue mining practices as they are
D. adopt ecological conservation practices
Answer:
Adopt ecological conversation practices
Explanation:
Gardeners often use chemicals to kill insects growing on their plants.
Which of the following is the most likely effect of these chemicals on
the environment?
A. The chemicals end up in the water supply and harm animals
living there.
B. The chemicals cause the plants to release harmful materials into the air.
C. Predators do not like the way the insects taste and change their prey.
D. The insects leave the gardens and move to other environments.
Hint Think about how other chemicals, such as fertilizers used by farmers,
impact the environment
Answer:
D is the correct answer please mark me brainliestAnswer:
D
Explanation:
What is the subject of catherine opie’s domestic series?.
Answer:
Abstract American photographer Catherine Opie combines portraiture and documentary photography in her photographic series titled Domestic. At the center of this series lies the idea of community and the question of how community is constructed, a theme which unites Opie’s seemingly disparate bodies of work.
Explanation:
Catherine Opie's Domestic series focuses on the subject of domestic life and the concept of home.
Opie is an American photographer. She explores the idea of domesticity and the various aspects associated with it, such as family, gender roles, identity, and the spaces we inhabit.
Through her photographs, Opie captures intimate and often thought-provoking scenes within domestic settings. She portrays everyday objects, interiors, and individuals, highlighting the complexity and diversity of domestic life.
Opie's Domestic series challenges traditional notions of the domestic sphere and raises questions about the societal expectations, relationships, and personal narratives within the context of the home.
Learn more about Catherine Opie, here:
https://brainly.com/question/14393726
#SPJ6
Which of the following statement about energy and nutrients in an ecosystem is true?
a Energy and nutrients flow in one direction through an ecosystem.
b. Energy and nutrients cycle through an ecosystem
C Energy cycles through an ecosystem, while nutrients flow in one direction
d. Nutrients cycle through an ecosystem while energy flows in one direction
Please select the best answer from the choices provided
h
A
D D
ОВ
0 0
D
Read the paragraph from the section “Sivert’s Story.”
Sivert's Story illustrates how gender equity and parental support and care can help in the training of their children.
What is the main idea in Sivert's Story?Sivert's Story is the story about a man who breaks the norms of the society by going on a paternal leave in order to help his wife take care of their baby while the wife returns to work.
It is not common for fathers to go on paternal leave to take care if their babies so that the wife can return back to work.
Therefore, Sivert's Story shows how gender equity and parental support and care can help in the training of their children.
Learn more about gender equity at: https://brainly.com/question/9873909
#SPJ1
give two examples of conductors and insulators of heat
Answer:
Solution 2: Conductors: Copper, aluminum, and iron. Insulators: Wood, water and air.
Explanation:
hope it will help
A cell line that has acquired the ability to divide indefinitely is called:.
Answer:
It becomes a continuous cell line.
Explanation:
This occurs in finite cells.
:)
The maximum number of years a human can live is called:.
Lifespan is an indicator that measures the average of the maximum number of years a human can live.
What is lifespan?It is the number of years that a newborn can live according to the standard of mortality by age of the population of its country.
In other words, it is a concept that only makes sense for one generation and is obtained as part of a mortality table that refers to the average number of years that a person is expected to live after birth.
Therefore, we can conclude that lifespan is an indicator that measures the average of the maximum number of years a human can live.
Learn more about lifespan here: https://brainly.com/question/11445304
#SPJ1
When an animal eats, food stays in the stomach for a period of time. When a unicellular organism, such as paramecium, takes in food, the food is contained in which organelle?.
When a unicellular organism, such as a paramecium, takes in food, the food is contained in a specialized organelle called the "food vacuole." The food vacuole is a membrane-bound sac within the cytoplasm of the unicellular organism.
Phagocytosis is the process by which the unicellular organism surrounds and engulfs solid particles, such as food particles or other microorganisms, forming a food vacuole. It forms by engulfing and enclosing the food particles during the process of phagocytosis, which is a type of endocytosis.
Once the food vacuole is formed, it fuses with lysosomes (organelles containing digestive enzymes) to digest the ingested food and break it down into smaller molecules. These smaller molecules are then used for various cellular processes, including energy production and growth, within the unicellular organism.
To know more about unicellular organism:
https://brainly.com/question/15299967
#SPJ3
what is the name of one of the lower chambers of the heart that receives blood from the upper chambers and pumps it into the arteries?