Which of these are methods of gene transfer for bacteria?

Answers

Answer 1

The three are named transformation, transduction, and conjugation.


Related Questions

Water,salts, and urea are removed from the blood by the

Answers

By the kidneys

Hope this helps :)

What two habitats lack trees shrubs and liquid water

Answers

Answer:

B

Explanation:

Answer:

The answer I'd say is B.

Explanation:

The desert is too hot for liquid water or any trees and shrubs

What is true about the
sperm cells of
flowering plants?
1. They are called
pollen grains.
2. They are inside
pollen grains.
3. They are inside the
seed.

Answers

Answer:2

Explanation: Sperm cells in plants are found inside the pollen grain. When the pollen grains fall on the stigma, the pollen raptures and forms a pollen tube then the sperm cells pass through the pollen tube to the ovary.

Plate movement is caused by ___________ occurring within the mantle.

radiation
convection
conduction
subduction

Answers

Convection but I am not sure

Answer:

Definitely Convection

Explanation:

I need help please and thank you

Answers

The answer to your question is c because ecology is in fact the study of ecosystems; how organisms interact with their surroundings

Answer:

dude its c

Explanation:

yeah

a cell is taken from an environment that has a high salt concentration and is placed into an environment that does not contain any salt. what effect will the change in the environment have on the cell?

Answers

Answer:The cell will become swollen and turgid

Explanation:Salt water draws water out of a cell dilute water is absorbed into the cell... Both by osmosis

Can someone help me in biology really quick because I need the help ASAP

Answers

Answer:

wheres the question?

Explanation:

Answer: Type A

Explanation:

An environmental problem in which an action in one part of the world has an effect
on the environment in another part of the world is called

Answers

Answer:

Global warming

Explanation:

Global warming is defined as the heating of Earth's surface, atmosphere and oceans due to the result of human activity such as burning of fossil fuels that releases methane, carbon dioxide (CO2),  and other greenhouse gases into the atmosphere.

Global warming is the result of action at one part of the world but it affects the other part of the world where human intervention is zero.

Due to global warming, there is extreme changes in climate which is resulting in melting of glaciers, rise in sea levels and loss of biodiversity.

Hence, the correct answer is Global warming.

Which of Earth’s systems is likely to experience the most direct benefit from the transition from coal-powered electrical plants to hydroelectric and geothermal sources of electricity?
will give brainliest

Choose the correct answer.



the atmosphere


the biosphere


the geosphere


the hydrosphere

Answers

Answer:

the atmosphere

Explanation:

because coal-powered electrical plants produce air pollution, which is one of the main causes of global warming, so if it was substituted for hydroelectric or geothermal sources the amount of air pollution would decrease greatly.

Answer: The atmosphere

Explanation:

Which consumer you think is a herbivore (eats plants only)?

Answers

Answer:primary consumers for ex sheep cows, etc...

Explanation:

These animals are consumers, don’t produce their own food, but get it only from the producers, like plants

Justify cellular respiration is a recycling of carbon in the carbon cycle.

Answers

Answer:

The carbon cycle shows how atoms of carbon can exist within different compounds at different times and be recycled between living organisms and the environment.

what is food , and the six classes of food​

Answers

Answer:

Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.

Explanation:

The food groups are divided based on the nutritional properties they offer. Foods that animals eat can be classified based on the amount of nutrients and the type of nutrients they provide for subsistence and survival. It is highly recommended to eat portions of food from the different groups in order to live a healthy lifestyle. This will provide you with a complete set of nutrients for better health.

There are seven major classes of nutrients and they are

carbohydrates

fibre

fats

protein

minerals

vitamins

water

These nutrient classes can be classified either into macronutrients or nutrients that are needed in large quantities and micronutrients or nutrients that are needed in small amount. Macronutrients include the carbohydrates, proteins, fats, fibre, and water while the micronutrients include vitamins and minerals.

Macronutrients provide the body with energy. Water and fibre are exempted. The energy is measures in terms of kilocalories or joules. Kilocalories are written as C in order to differentiate them with gram calories. For every gram of carbohydrate, seventeen kilo joules or four kilo calories are provided for your body. Fats provide your body with thirty seven kilo joules or nine kilo calories for every gram. Vitamins, fibre, minerals, and water do not provide the body with energy but they are needed for other purposes.

Carbohydrate molecules are made up of carbon, oxygen, and hydrogen atoms. Monosaccharides like glucose, fructose, and galactose are types of carbohydrates. An example of a complex carbohydrate is starch. Fats are made up of the same kinds of atoms as carbohydrates. They are made of triglycerides or fatty acid monomers that bind to glycerol.

Protein molecules are made up of nitrogen atoms plus carbon, oxygen, and hydrogen. These nitrogen monomers are essential amino acids needed by the body. They perform functions that are essential in metabolism. They are used for energy and fuel for the body. Antioxidants and phytochemicals are other micronutrients that are essential to the body.

Most of the foods that you consume are made up of several of the classes of nutrients. Some of the nutrients are needed by the body all the time while the others are needed once in awhile. People’s health deteriorates because of the imbalance of nutrients. There can be too much of a nutrient or a deficiency in it.

Food is any edible substance we take into our body to make us grow
1.Carbohydrate
2. Fat
3.Protein
4.Mineral
5.Vitamins
6.Water
I hope it was helpful

Which type of connective tissue has the most fibers?

A) Loose connective tissue
B) Fibrous connective tissue
C) Cartilage
D) Bone

Answers

Answer:

a loose connective tissues

Explaanation:

Option B) Fibrous connective tissue is a  type of connective tissue that has the most fibers among all.

Connective tissue is a tissue that not just supports, and protects, but also provides structure to other tissues and organs of an organism's body.  There are four classes of connective tissues:

Loose connective tissue - contains few fibers with parts of ground substances Fibrous connective tissue - has the most abundant fibers. Cartilage - matrix has a large number of fibers with few elastic and collagen fibers. Bone - some amount of fibers present in the matrix of the bones.

Fibrous connective tissue or dense connective tissues has most fibers as it is made up of bundles of collagen fibers present parallel. These are present in tendons, ligaments, and dermis.

Learn more about:

https://brainly.com/question/10436398

A scientist finds a snail fossil in a layer of rock in a desert which action would help the scientist determine what the environmental conditions may have been when the snail existed?

Answers

Answer:

you can suppose from that statement alone that the snail lived in. climate that was humid, wet and full of life in the past. you can also see the stratus of rock layers fo determine how long it could have been, and use carbon dating as a sure way to get the dating and time period correctly.

Things like your eye color and height are not under your control. This is because they are determined by your gen
So, eye color is a good example of an inherited

Answers

Answer:

Gene

Explanation: That was way to easy, are you sure that's the right question?

Answer:

Eye color is a good example of an inherited gene.

The structure controls which materiel enter and exit the cell

Answers

Answer: A

Explanation: A is the cell membrane which is the one that controls what goes in and what goes out

Answer: A

Explanation:

Describe the first interaction that triggers signaling to begin in a target cell.

Answers

Answer:

Target cell: this cell has a receptor that can bind the ligand. The ligand binds to the receptor and triggers a signaling cascade inside the cell, leading to a response. ... When a signaling molecule binds to its receptor, it alters the shape or activity of the receptor, triggering a change inside of the cell.

Explanation:


Please help IM BEGGING YOU

Answers

Answer:

C // #3

Explanation:

Answer: Simplify the radical by breaking the radic and up into a product of known factors, assuming positive real numbers.

Exact Form: ^3 sqrt (5)

c is the answer

Explanation:

The passage of the end products of digestion into the cells of an organism is an example of

Answers

Answer:

Option A, Absorption

Explanation:

Complete question -

The passage of the end products of digestion into the cells of an organism is an example

a) absorption

b) digestion

c) circulation

d) regulation

Solution -

Nutrient absorption occur in the small intestinal mucosa because it has large surface area as compared to the surface area of stomach. These nutrients are absorbed by the guts so that it is then released into the blood stream. The blood stream carries the nutrient along with it and transport it to the brain, organs and other parts of the body as per their requirement.

Thus, option A is correct

Which of the following statements is incorrect?
1. The tracheal mucosa consists of pseudostratified ciliated columnar epithelium.
2 .The trachealis muscle and elastic connective tissue allow for changes in the diameter of the trachea.
3. The trachea is located posterior to the esophagus and extends from the larynx to the superior border of the fifth thoracic vertebra.
4. The trachea has incomplete hyaline cartilage rings.

Answers

Answer:

The trachea is located posterior to the esophagus and extends from the larynx to the superior border of the fifth thoracic vertebra.

Explanation:

This is a wrong  statement. Anatomically ,this organ of upper respiratory system is located anterior to the oesophagus.Thus it  is the oesophagus that is located posterior to the trachea.

It passes through the posterior mediastanium to branch into the left and right main bronchi.

it  bends towards it ends to the right,which results in the crossing of the left main bronchus anteriorly to the oesophagus.

It is lined by mucus gland produced by pseudo stratified columnar cells and some ciliated and non ciliated cells.

The mucus helps in warming up inhaled air and filtration of the air of dust particles.

What does respiration mean in biological terms?​

Answers

Answer: Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells).

Explanation:

How many types of muscle tissue are there?
A.
1 type
B.
2 types
C.
3 types
D.
4 types

Answers

There are 3 types of muscle tissue. So the answer is C

One type of muscular dystrophy, Duchenne muscular dystrophy, is is an inherited condition that usually only affects boys. Muscle weakness is noticed as children begin to walk or run. Characteristic signs include walking on tiptoe and large calves. The disease occurs in one out of every 3000 newborn male children. Why is this disease limited to mostly boys?

Answers

Answer:

Explanation:

Duchenne muscular dystrophy acts as a X-linked recessive disease. Which means the gene sits on the X chromosome, and you need two bad copies to show disease (for females) and one bad copy (to show in males).

Now from our knowledge, we know males are XY and females are XX. Males have only one copy of the X chromosome from their mother and one copy of the Y chromosome from their father, thus if they get the mutated version of the gene that causes this disease, they will get the disease. However, if a female has a mutated version of gene on one of the X chromosome, the other X chromosome could have a normal gene and that normal gene would take over and produce a normal phenotype/function.

Since, boys only have one X chromosome, if they get the mutated gene they will get the disease, whereas females have two X chromosome (so even if one copy is bad and the other is good, the good version can take over, however boys don't have this) thus mostly male children are affected by this.

This disease is probably a sex-linked trait, which usually occurs on the X chromosomes. Males are XY, so all it takes is a single recessive gene on that X chromosome that will cause the disease.

Hope that helped! :)

Fossil evidence shows that vertebrates made the transition from water to land during the period.

Answers

Answer:

Devonian period

Explanation:

The currently available fossil evidence showed that vertebrates made the transition from water to land during the Devonian period. Specifically, the migration happened in the late Devonian period.

One of the features that enabled migration from water to land is the development of legs as against fins. While the latter is useful for movement in water, the former is necessary for locomotion on land.

In the late Devonian period, the first group of vertebrates with legs emerged. The tetrapods or four-legged vertebrates were known to have emerged about 330 million years ago and consist of the amphibians, reptiles, and mammals.

it is biology ?!!iiii

Answers

The letter d. Human

Answer:

.

Explanation:

.

What results from combining two complementary pigment colors?


a secondary pigment

a white pigment

a primary pigment color

a black pigment

Answers

Answer:

a black pigment

Explanation:

Answer:

Last one: a black pigment.

What kind of research method is are these?
Hypothetical Study 1
Researchers recruited 50 young adults (ages 18-25) who had recently been diagnosed with Type 1 diabetes, 50 who had recently been diagnosed with Type 2 diabetes, as well as 50 non-diabetic young adults, ensuring a comparable distribution of age, race/ethnicity, and gender across samples. They asked all of these participants as well as the participants' parents to complete a self-report measure asking questions about the participant's dietary and exercise habits between ages 15 and the present. They also requested participants' medical records indicating their body weight over time. Researchers found that the group with Type 2 diabetes was significantly more likely to have been overweight than either of the other groups as early as age 15. They also reported significantly higher levels of unhealthy eating habits as well as significantly lower levels of physical activity across this whole time period. Young adults with Type 1 diabetes did not differ significantly from the non-diabetic group across any of these measures.
Hypothetical Study 2
Researchers recruited 100 obese college students to participate in a weight-loss study. Participants were randomly assigned to one of three groups. The first group participated in a didactic course teaching them about healthy eating habits, exercise, and other types of self-care. The second group received the same training and also participated in a weight-loss support group. The third group was placed on a waiting list to participate in the training until after completion of the study. Researchers found that students in both the group that received didactic training only and the group that received both didactic training and a support-group lost significantly more weight throughout the course of the study than did those in the wait-list control group, but that they did not differ significantly from each other. However, at 6-month follow-up, they found that 90% of those in the group that had only received didactic training had regained the weight they had lost, whereas only 50% of those in the group that had also participated in the support-group experienced similar weight gain.
Hypothetical Study 3
Researchers asked 100 high school students to complete weekly self-report measures over the course of a year, asking questions about sleeping habits as well as general health questions. They examined the relationship between the number of hours of sleep students got on average and the number of days they were ill throughout the year. Researchers found that students' average number of hours of sleep per night was inversely related to the average number of days they reported being ill throughout the year. However, students did not seem to experience additional health benefits by sleeping more than 8 hours per night.
1. Which of these studies is an experimental study?
A) Study 1
B) Study 2 (i think it is this one)
C) Study 3
D) Studies 1 and 3
E) Studies 2 and 3
F) Studies 1, 2, and 3
G) None of the above
2. Study 1 employs a ___________________ design.
A) retrospective (i think it is this one)
B) prospective
C) longitudinal
D) cross-sectional
E) natural experiment
3. Study 3 employs a _________________ design.
A) experimental
B) randomized, controlled trial
C) ex post facto
D) prospective ( i think it is this one)
E) retrospective

Answers

Answer:

1. option B

2. option A

3. option D

Explanation:

1. Which of these studies is an experimental study?

Yes, you got it right, it is study 2. Study 1 and 3 are just observational studies, where researchers collect and interpret data based on what they have seen, heard or observed. But for the experimental design, there is a manipulation on the part of the researchers where he grouped them and administered treatments.

2. Study 1 employs a retrospective design.

You also got that part right, Study 1 actually employed the retrospective design by sampling individuals and then collecting information about their past which in this case is asking questions about the participant's dietary and exercise habits between ages 15 and the present and also their medical records.

3. Study 3 employs a prospective design

You also got this right. Study 3 actually employed the prospective design by sampling individuals and follow them over time and data about them is collected as their characteristics or situations changes and in this context, they observed even after a change by sleeping more than 8 hours per night, students still did not seem to experience additional health benefits.

Which consequences can be caused by overharvesting marine species?

Answers

Answer:

Overharvesting, or overfishing in the case of fish and marine invertebrates, depletes some species to very low numbers and drives others to extinction. In practical terms, it reduces valuable living resources to such low levels that their exploitation is no longer sustainable

Explanation:

please mark me brainliest if i did good enough

Molecules that make up living things contain carbon are called

Answers

Answer:

Carbon-based compounds in living things are called biochemical compounds.

Answer:

Compounds that contain predominantly carbon and hydrogen are called organic compounds or Carbon-based compounds whereas compounds that consist primarily of elements other than carbon and hydrogen are inorganic compounds. Diatomic molecules contain two atoms, and polyatomic molecules contain more than two.

Explanation:

5. Florida boa constrictors are invasive top predators. How does the boa constrictor negatively impact species in the tertiary trophic level? *

It would not affect them

Tertiary consumers would increase.

Tertiary consumers would have less food

Tertiary consumers would decrease

Answers

Answer:

The correct answer is "Tertiary consumers would have less food".

Explanation:

Animals in the tertiary trophic level are omnivores that eat animals that are in the secondary trophic level because they are carnivorous as well. An invasive top predator such as boa constrictors not necessary eat animals in the tertiary trophic level, however they affect them because they eat their food. Boa constrictors' diet include a wide variety of animals, including birds, mammals, and other reptiles

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