Biology College

hello people of brainly

Hello People Of Brainly

Answers

Answer 1

Answer:

a scientist should observe the natural world without changing or destroying it

Related Questions

Molecular formula of 5 glucose molecule

Answers

i think it’s C30H60O30

what is vector in life sience​

Answers

“A vector is an organism that spreads infection by conveying pathogens from one host to another”

Which statement describes a constructive force that shapes Earth's surface?
Help meeee

Answers

Answer:

a volcano erupts, a river deposits gravel at a bend , plate movement creates mountains

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Which part of the carbon cycle shown in the figure contributes the most to the greenhouse effect?
(20 Points)


The decay process returns carbon dioxide to the soil.

The remains of dead organisms gradually change into fossil fuels.

Photosynthetic organisms remove carbon dioxide from the atmosphere.

A Burning fossil fuels and wood releases carbon dioxide into the atmosphere.

Answers

The answer is A hope that helps

Infer: In which part of Earth's core do
convection currents occur?

Answers

Answer:

mantle

Explanation:

Convection currents in the Earth occur in the mantle. The core of the Earth is extremely hot, and material in the mantle close to the core is heated..

In the beginning of "A Growing Problem," how does the author
introduce his argument that nonnative species should not live in
Florida?
O A. by comparing Florida to Southeast Asia
O
B. by comparing pythons to alligators
O
C. by referencing facts about the dangers of pythons
O
D. by referencing people's expectations of the Everglades

Answers

Answer:   D

Explanation:

i took the quiz

Answer:

D.

Explanation:

I JUST submitted the test

Match the descriptions with the correct phases of the ovarian cycle - progesterone levels are highest during this phase - menses occurs during the first part of this phase - LH levels peak during, or just before, this phase - This phase occurs approximately 14 days before the onset of menstruation - GnRH secretion is inhibited by estrogen secreted from the corpus luteum during this phase - This phase corresponds to the secretory phase of the uterine cycle - A follicle ruptures during this phase - The antrum of a follicle grows larger during the end of this phase A. Follicular phase B. ovulation C. Luteal phase

Answers

B that is what I put and I got it right

Here's a match of the descriptions with the correct phases of the ovarian cycle:

Progesterone levels are highest during this phase: C. Luteal phaseMenses occurs during the first part of this phase: A. Follicular phaseLH levels peak during, or just before, this phase: B. OvulationThis phase occurs approximately 14 days before the onset of menstruation: C. Luteal phaseGnRH secretion is inhibited by estrogen secreted from the corpus luteum during this phase: C. Luteal phaseThis phase corresponds to the secretory phase of the uterine cycle: C. Luteal phaseA follicle ruptures during this phase: B. OvulationThe antrum of a follicle grows larger during the end of this phase: A. Follicular phase

What is an Ovarian cycle?

The ovarian cycle is the monthly series of changes that occur in a female's ovaries, specifically in the development and release of an egg (ovulation).

The cycle is regulated by several hormones produced by the hypothalamus, pituitary gland, and ovaries, and is divided into three main phases: the follicular phase, the ovulatory phase (or ovulation), and the luteal phase.

Learn more about ovarian cycle, here:

https://brainly.com/question/14224887

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what type of joints make up the skull?

Answers

Answer:

The bones of the skull are highly irregular. Most of the bones of the skull are held together by firm, immovable fibrous joints called sutures or synarthroses. These joints allow the developing skull to grow both pre- and postnatally.

Explanation:

Answer:

какву врсту питања

kakvu vrstu pitanja

Explanation:

original source of energy for killer whale​

Answers

Answer:

food would probably be the best answer

describe the parts of a medical emergency card

Answers

there an emergency to the medical field

help pliz :3 I need your help and thank you <3​

Answers

Answer:

need to answer all??tell

is the long-term average weather over a large area

Answers

Climate is the long-term average weather conditions that occur in a particular region. Climate depends on how average weather conditions change throughout the year.

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David roller skates 42 Km in 3 1/2 hours. What is his average speed in kilometers per hour? Speed =​

Answers

Answer:

12km

Explanation:

This is pretty easy, all you have to do is divide 42 by 3.5 and then you get 12<3 hope that helps!!

I think 12 km/hr
Not sure tho

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Similarities in DNA sequence can be seen in all species
A. Anatomical Evidence
B. Homologous Structure
C. Analogous Structures
D. Vestigial Structures
E. Fossil
F. Embryology
G. DNA/Molecular Evidence

Answers

Answer:

I think G.

Explanation:

It mentioned DNA and Molecular evidence and every living thing has that.

It’s homologous structure I don’t know for sure but that’s what I think

Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Which of the following mutations could lead to constitutive expression of the genes of the lac operon? A mutation in the lac-Z gene A mutation in the lac-Y gene A mutation in the operator sequence A super repressor mutation Submit Part B Which of the following best describes the biological role of the lac operon? View Available Hint(s) Which of the following best describes the biological role of the lac operon? It ensures that bacterial cells produce lactose only when no other food sources are available. It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment. It ensures that a cell produces enzymes involved in lactose metabolism in a constitutive manner. It prevents other sugars from being metabolized until all available lactose has been used. Submit Part C The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. View Available Hint(s) The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. True False

Answers

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

Even though chestnuts can regrow from their roots, this does not usually happen because
there are few root systems left in the forest.
chestnuts grow in regions prone to fires.
most forestry professionals no longer want to grow chestnuts.
new growth is stricken with the blight before it has the chance to mature.

Answers

Answer: New growth is stricken with the blight before it has the chance to mature.

Explanation:

American Chestnut trees can indeed regrow from their roots but due to the devastating effect of the chestnut blight, they have been unable to do this since the blight spread across the country.

The blight was introduced when Chinese chestnut trees were imported into the U.S. in the 20th century. It killed off most of the chestnut trees in the U.S. and attacks the tree again when it grows to around 6 meters bringing it down to its roots. This is why the American Chestnut is considered endangered.

Answer:

d

Explanation:

took the test


4. The barred owl has been moving into the habitat of the spotted owl. This could lead to a reduction in
the spotted owl population if the
O two owl species cannot interbreed,
barred owl is better adapted to habitat changes,
O barred owl is a secondary consumer
O spotted owl is dependent on local producers,
4th

Answers

I think it’s barred owl is a secondary consumer

The barred owl has been moving into the habitat of the spotted owl. This could lead to a reduction in the spotted owl population if the? barred owl is better adapted to habitat changes. Mangrove trees are affected by several factors.

Which of the following is an example of the endocrine system maintaining homeostasis? (3 points)

-Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response
-Discharging an excessive amount of hormones in the blood and not sending a signal to stop production
-Sending a message to the pituitary gland to start producing a hormone when the levels in the body are too low
-Using sense organs to get information about the outside world and direct an appropriate body response release

Answers

Answer:

-Discharging an excessive amount of hormones in the blood and not sending a signal to stop production

Explanation:

Endocrine system is regulated by negative feedback mechanisms that work to maintain homeostasis.

Concentration of hormones, and how they effect other body systems, are controlled in this manner.

For instance, the blood glucose regulation is controlled by insulin and glucagon, hormones produced by the pancreas.

What belongs there in the box

Answers

Answer:

Tissu

Explanation:

believe me my friend

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Choose one of the following scenarios and answer the questions provided. Support your answers using scientific reasoning and discussing possible impacts to individuals, society, and the environment. Be sure to also discuss any medical or ethical issues that may apply. (10 points)
Scenario 1:

Genetic engineering can be used to create more productive strains of farm animals. By adding genes to an animal's DNA, the animal can be made to produce milk or meat containing vital nutrients that would not be found naturally in those products. This provides a greater amount of nutrients per serving of milk or meat.

Do you think that this type of genetic engineering should be pursued? Explain your answer. (5 points)

What are some possible impacts (positive and negative) of this type of genetic engineering on individuals, society, and the environment? (5 points)

Scenario 2:

In the future, doctors may be able to evaluate your DNA to check for genetic markers related to specific medical conditions or harmful reactions to medications. Your personalized genetic profile could be kept on record and referred to in order to develop personal medical treatment based on your unique DNA sequencing. Scientists have found that just small variations in a specific section of your DNA can help determine how well some medications can work for you or if they would be beneficial at all.

Would you want to have your DNA profile kept in your medical record as a reference for your doctors? Explain your answer. (2 points)

What are potential pros and cons of having such tests done and referring to DNA sequences when determining a patient's medical treatment? (5 points)

Describe how the availability of this technology might affect the frequency of genetic diseases in individuals and populations. (3 points)

Answers

This kind of genetic engineering can be pursued, but with caution. Making an animal more resistant to common infections can reduce the need to administer antibiotics, which often ends up in the milk and meat, and can also save money for the farmer. It can result in healthier farm animals that produce more milk and meat. However, in some cases genetic engineering can produce sicklier and weaker offspring than wild type, sometimes as an unforeseen effect of the phenotype, but sometimes as an effect of a weaker DNA molecule that breaks easier. Some consequences of this include reduced fertility and offspring viability. For society, it could be seen as a benefit if it ups the production of milk and meat because it could drive down the cost, since more goods are being produced per farm animal than before. In terms of the environment, it might be beneficial because the antibiotics that would have otherwise been passed through the animal and ended up in animal waste, where it could effect the local ecosystem in a negative way, do not end up doing that since the animal itself is no longer in need of large doses of antibiotics.

The exchange of gases and other materials between cells in the body and cells in the blood
occurs in...

A. stomach
B. capillaries
C. arteries
D. veins

Answers

The answer is B.)Capillaries

Exchange of Gases, Nutrients, and Waste Between Blood and Tissue Occurs in the Capillaries. Capillaries are tiny vessels that branch out from arterioles to form networks around body cells. In the lungs, capillaries absorb oxygen from inhaled air into the bloodstream and release carbon dioxide for exhalation.
(Don’t know if you wanted all that)

How would adding finer particles to the sand affect porosity?

Answers

Explanation:

Porosity depends on the size, shape, and mixture of grains and particles that compose soil and rock. For instance, small particles such as clays can compact more closely together, reducing the amount of porosity. However, larger particles such as sand and gravel will have more spaces available between them.

1. Define physical change.
2. What are some examples of physical change?
3. The wood in the Figure below is being cut with a chainsaw. Is this a physical change?
Why or why not?

Answers

1. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
2. Crushing a can.
Melting an ice cube.
Boiling water.
Mixing sand and water.
3.it is a physical change because in a physical change is usually easy to see.

In this food web what is represented by the chains of arrows from the grass to the fox?

Answers

Answer:

Does anyone watch shaurya aur anokhi ki kahani on star plus an Indian serial you'll love it

If an unidentified organism is unicellular, prokaryotic and has peptidoglycan in its cell walls, into which kingdom would it be placed?

Answers

Answer:

<3

Explanation:

If two copper wires are the same length but different thicknesses, the ____ wire has more resistance to current. Group of answer choices thinner thicker

Answers

Thicker because it would be harder to cut :)

Search in the internet a picture that demonstrates a skill in harvesting/capturing animal/fish?. Paste the picture below.​

Answers

https://images.app.goo.gl/vCAczhDoFTzKwUit9 This picture demonstrates skill because the person is using multiple tools at once to capture fish.

16. Which combination of terms correctly matches an organ system with a tissue in that system?
a. Circulatory system - cardiac muscle
b. Digestive system - cartilage
C. Respiratory system - pancreas
d. Nervous system - marrow

Answers

Answer:

B

Explanation:

Answer:

A

Explanation:

The Circulatory System is a system that circulates blood around the body.  Cardiac Muscle refers to your heart, which is a prominent part in the Circulatory System.

What are the important plants in agriscience?

Answers

Answer:  Major grain crops are corn, wheat, barley, oats, rye, rice, sorghum, and soybeans. Less than 10 percent of the corn grown in the U.S. is for human consumption. Legume plants such as dry beans and peas are important foods in the diet of many Americans and people around the world.

Explanation:

How does a single fertilized egg cell develop into all the different cells of your body? Use cell division and differentiation in your answer.

Answers

Answer:

Once an egg is fertilized by a sperm, a zygote is formed. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation. Cells in these three layers will give rise to different parts of the organism. The endoderm eventually becomes the gut.

Explanation:

- Eijiro <3

A zygote is formed when an egg is fertilized. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation.

What is Differentiation?

This is the process in which cells acquire different structure and function from one another to form distinct cell types.

When a zygote is formed, cell division takes place which helps to trigger differentiation of cells.

Read more about Cell division here https://brainly.com/question/796780

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