Answer: (EXAMPLES). Human body temperature - The hypothalamus of a human reacts to temperature fluctuations and responds accordingly. If the temperature drops, the body shivers to bring up the temperature and if it is too warm, the body will sweat to cool down due to evaporation.
Human blood pressure - When blood pressure increases, signals are sent to the brain from the blood vessels. Signals are sent to the heart from the brain, and heart rate slows down, thus helping blood pressure to return to normal.
Human metabolism - When a human is hungry, metabolism slows down to conserve energy and allows the human to continue living with less food.
Regulation of blood sugar in humans - When blood sugar rises, insulin sends a signal to the liver, muscles, and other cells to store the excess glucose. Some is stored as body fat, and other glucose is stored as glycogen in the liver and muscles.
Production of human red blood cells (erythropoiesis) - A decrease in oxygen is detected by the kidneys and they secrete erythropoietin. This hormone stimulates the production of red blood cells.
Explanation: Since we all know, A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?
Answer:
its probably somehting abt competition :)
Explanation:
they fight for a limited resource which is competing
Answer:
These are examples of competition because the organisms are fighting for resources.
Explanation:
They are all fighting for the same things so it would be a competition.
Explain how electric fields make pollination efficient in plants.
Answer:
Electric field around flowers may help bees find nutritious blooms. Scientists report that bees and flowers appear to have a charged communication. In addition to a flower's color and scent, its electric field may also bring in bees, a new study shows
Explanation:
hope it helps
Answer:
hope it helps you stay happy
Pls help I’m literally so confused
Answer:
IT IS D
Explanation:
i did this and it was d
Answer:
D
Explanation:
Which is an example of a beneficial mutation?
Which would most likely be the resulting phenotype of the offspring?
Answer: Examples of beneficial mutations are HIV resistance, lactose tolerance, and trichromatic vision.
Answer: one that changes the color of a rabbit, allowing it to hide from predators.
Explanation:Need brainliest award
what is the message of your study of the symbol of hypothetical elements?
Can you help me with biology?
Answer:
Explanation:
1. They can be only used once
2. ribosomes
3. hyper tonic
Bat wings, a human hand, and a whale flipper are all ________________structures. Explain WHY?
Butterfly wings and bat wings are examples of _______________ structures.
The mouths of horseflies and mosquitoes are examples of _______________ structures.
A _______________ structure is one that does not currently have a function in the organism. Give an example.
Comparing structures of embryos is an example of __________________.
If embryos share a common structure, what does that say about their evolutionary relationship?
How would the protein sequence of two closely related species compared to the protein sequences of two unrelated species? Give an example of each here.
Answers:
1.blank: Homologous
why?: They all have similar structures passed on from a common ancestor. Although they all have different functions now, they still all have the same basic pattern of bones.
2.blank: Analogous
why?: Butterflies and bats are both unrelated organisms but they both have similar structures. However, unlike homologous structures, analogous structures do the same job (help the organism fly) but are structured entirely differently because they evolved in the two species independently and did not share a common ancestor.
3.blank: Homologous
why?: (see question 1 ^)
4.blank: Vestigial
example: An example of a vestigial structure is a human's tail bone.
why?: Over time humans evolved and our tail bones shrank as we adapted. While we still have one, it serves no purpose in our lives today.
5.blank: Embryology
why?: Embryology is the branch of science and medicine that is focused on the development and study of embryos. Scientists in this field study the prenatal development of gametes, fertilization, and development of embryos and fetuses.
6.answer: They share a common ancestor
why?: Embryos of many different species can show evidence of sharing a common ancestor based on the similarities and structures of them all. Similar structures during development support common ancestry. For example, all vertebrae embryos develop gill slits and tails but not all develop into those structures. Over time as organisms evolved their structures changed with them.
7.answer: If the protein sequence of two species is closely related the two species are most likely similar, but the protein sequences of two unrelated species are not similar meaning these two species are very different. By comparing the positions of amino acids on protein chains you can determine how similar the species are. The less different the positions are, the more alike and related they are.
why?: For example, humans and chimpanzees only have one position on the amino acid chain where they are different but if you compare humans and moths there are 31 different positions.
I included some extra information in this for you so you hopefully can learn something too! I hope this helps and if you have any questions on what I put or anything else, let me know. :)
HELP!!!! 50PTS!!!!!!
A species of fish is unintentionally introduced into a marine ecosystem. The species has a similar diet to an existing fish species, creating competition for food. Which of the following must occur for the existing species to be more resilient in the environment? (3 points)
Individuals within the existing species' population must evolve traits that provide a survival advantage.
Individuals should have less genetic diversity to become more similar and evolve in the same direction.
Natural variations in phenotype must be present in the existing species' population.
The existing species must reduce its rate of reproduction to produce only the most fit offspring.
in cellular respiration where do the products go?
Answer:
The products of cellular respiration are carbon dioxide and water. Carbon dioxide is transported from your mitochondria out of your cell, to your red blood cells, and back to your lungs to be exhaled.
A group of mice becomes separated by the formation of a river. Over time, the northern mice became smaller and whiter, while the southern mice became larger and browner. This is an example of:
Answer Choices:
-divergence
-homology
-gigantification
-industrial melanism
This is an example of gigantification.
What is meant by evolution?
Evolution is the change in the features of a species over several generations and depends on the procedure of natural selection. The theory of evolution is based on the idea that all species are related and gradually change over time.
Thus, this is an example of gigantification.
To learn more about evolution click here:
https://brainly.com/question/2725702
Potassium-40 has a half-life of 1.3 billion years. If a rock was
determined to be around 3.9 billion years old what percentage
of the original potassium-40 would be left in that rock sample?
Answer: The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.
What is the relationship between ATP and mitochondria?
Answer:
mitochondria produces energy in the form of ATP molecules
illustrate the cellular respiration pathway
Explanation:
Cellular respiration is a collection of three unique metabolic pathways: glycolysis, the citric acid cycle, and the electron transport chain. ... In order to move from glycolysis to the citric acid cycle, pyruvate molecules (the output of glycolysis) must be oxidized in a process called pyruvate oxidation.
PLEASE HELP
Many plants have the ability to respond to herbivores. Some plants produce substances
which are distasteful or toxic in response to an herbivore attack. Which of these is the LEAST correction description of the plant system interactions involved?
A. Carbon dioxide diffuses through stoma into leaf tissues, where it is fixed into organic compounds
which may serve as building blocks for chemical defenses.
B. Root systems obtain water and key minerals from the soil where they are transported to the affected site.
C. Shoot systems carry carbon dioxide, water and nutrients from leaves directly to the affected
plant part, where chemical defense molecules are produced.
D. Chemicals found in a herbivore's saliva trigger chemical messengers which trigger production of
defense molecules
Answer:
I'm pretty sure that the answer is d :)
Explanation:
<3
Answer:
yeah
Explanation:
Mechanical Defenses
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves). They discourage animals by causing physical damage or by inducing rashes and allergic reactions. Some Acacia tree species have developed mutualistic relationships with ant colonies: they offer the ants shelter in their hollow thorns in exchange for the ants’ defense of the tree’s leaves.
There are many stars in the; our sun is one of them during the day, we cannot see the other stars in the sky. However, at night, we can see the other stars in the sky which is a reason why we only see our sun during the day time and other stars at night? A. The sun is the biggest star B. The sun is the closest to earth C. The sun is the brightest star D. The sun has the most gravity
Answer:
c
Explanation:
What type of cells are found in your body?
Answer:
There are over 200 different cell types in the human body.
Explanation:
Types of cells in the human body.
Stem cells Embryonic stem cells Adult stem cells
Muscle cells Skeletal Cardiac Smooth
Cartillage cells Chondrocytes
Bone cells Osteoblasts Osteoclasts Osteocytes Lining cells
Skin cells Keratinocytes Melanocytes Merkel cells Langerhans cells
hope this helps.
HELP I WILL GIVE BRAINLIEST
The main point of this page is..???
Answer:
The Main point of the page is to explain Celestial Objects to audiences who didn't know before.
Explanation:
It's a page to deeper to understanding of Celestial Objects or floating rocks :)
Answer number 5 HURRY PLEASE
Answer:A) the fossil records shows that organisms have changed very little over time
Explanation:
What is true about two different cell types in the body?
Answer:
Option B
Explanation:
In cell differentiation, the objective is to differentiate cells based on their functions and the organs they are going to form. In this exercise, the cells need to get on and off to define the type of the cell and its function. Hence options A, C is important for cell differentiation. Information from DNA is transferred to mRNA for cell differentiation; hence option D is also correct. While option B has no role in cell differentiation loss of DNA segment could cause mutation i.e. deletion.
Hence, option B is the correct answer
Orbits of the planet are
A) elliptical with earth at one of the foci
B) elliptical with the sun at one foci
Answer:
Elliptical with the sun at one foci
i really need someone to help!! i’ll give brainlist and 50 points!
Answer:
the polar bear walks 30 seconds per minute
All of the cells have__________ DNA
A. Identical
B. Different
Answer:
A. Identical DNA
is the answer
HELP I'LL GIVE BRAINLIEST
Which statement best describes a required component of cell differentiation?
A. The transcription of the myoD gene.
B. The selective loss of certain genes from the genome.
C. The production of tissue-specific proteins.
D. The movement of cells.
*Urgent*
According to the food web shown above, what is the relationship between the wheat, the grasshopper, the frog, and the snake?
A. The snake directly consumes the frog, the grasshopper, and the wheat.
B. The grasshopper consumes the wheat, and the snake consumes the frog, but there is no connection between the other organisms.
C. The wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
D. The wheat is directly consumed by both the grasshopper and the frog, and the frog and the grasshopper are directly consumed by the snake.
Answer:
The wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
Explanation:
A food web is a model that can be used to better understand the feeding relationships between organisms in an ecosystem. Arrows in a food web start at a food source and end with the consumer.
So, in the food web shown in the question, the wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
Answer:
Explanation:
Which types of substances need energy and active transport
Answer:
Explanation:
Types of active transport include ion pumps, such as the sodium-potassium pump, and vesicle transport, which includes endocytosis and exocytosis. Cell transport helps cells maintain homeostasis by keeping conditions within normal ranges inside all of an organism's cells.
Remains, impressions, or traces of an organism that lived in the past
O Sedimentary Layers
O Fossils
O Diversity
Extinction
O Fossil Record
Answer:
FossilsExplanation:
Remains, impressions, or traces of an organism that lived in the past Fossils.Answer :
Fossils
Fossils are the remains of living things turned into mineral stones
There are many kinds of fossils. Fossils can be divided into several parts
Sory if wrong :)
Couples who both have normal colour vision and have a child with colour blindness. Explain how this may happen, and state that the sex of the colour blind child must be.
Answer:
because of the sex with the wrong way so the child is colour binld
Glycolysis, or the breakdown of glucose, is a process used by almost all organisms as a way to release energy stored within glucose molecules. This energy can then be stored in cells as ATP, which powers cell processes when needed. What does this show, in terms of the evolutionary history of cells using glycolysis?
Answer:
It was one of the earliest metabolic pathways.
Explanation:
The evolutionary history of cells using glycolysis shows that It was one of the earliest metabolic pathways which is used by nearly all of the organisms on earth for the production of energy for the survival, growth and development. The first organisms used this pathway for the generation of energy and with the passage of time, new pathways are also formed as the organism evolved so we can conclude that glycolysis is the first pathway used by the earliest organisms.
PLEASE HELP ME WITH QUESTIONS 7-8 ASAP!!!!!! DON’T PUT ANY LINKS!
(a) Identify the cellular location where PDC is most active.
Answer:
The mitochondria
Explanation:
Answer:
Explanation:
The mutation will result in the translation of an inactive/nonfunctional Trp-T enzyme.
• The mutation will result in no translation of the Trp-T enzyme.
• The mutation will result in no/reduced production of I3PA