Answer:
[tex]5[/tex]
Explanation:
[tex]-3x^{2} -5x+7[/tex]
→ Substitute in x = -2
[tex]-3(-2)^{2} -5(-2)+7[/tex]
→ Simplify
[tex]-12 +10+7[/tex]
→ Simplify further
[tex]5[/tex]
The evolution of a species is dependent on changes in the genome of the species. Identify two mechanisms of genetic change, and explain how each affects genetic variation.
Answer:
Mutation, fertilization, meiosis are different mechanisms by which changes can occur in the genome.
Explanation:
There are several process which is responsible for causing change in the genome of the species which results in the evolution of that species. Some of these processes are:
1. Mutation: In mutation, some nucleotide sequences get change and this change can occur due to frameshift, addition, deletion or any other process. This change in nucleotide can be seen in phenotype and helps in the evolution of the species.
2. Fertilization: During fertilization mixing of the genome of two individual takes place which results in producing a genetically distinct offspring which contains variation. So as the offspring is genetically different it can contain new alleles that can help the individual to survive in the changing environment.
Two mechanisms or vehicles through which genetic change occurs are;
Mutation and Gene flowMutation occurs when there is a mistake in the DNA sequence of an organism. When an egg and a sperm bearing the faulty DNA sequence mate, a mutated organism is formed.
A standing genetic variation is formed through mutation because of the differences in the organisms of a population.
Phenotypes that indicate the physical appearance of organisms change during mutation.
Gene flow is another channel for genetic change. It occurs when two populations with different allele frequencies unite in the same environment and then assume similar allele frequencies.
When mating occurs, the allele frequencies of these populations can assume similarity.
Learn more here:
https://brainly.com/question/14504862
Chose ALL the choices that are true about exponential growth: a Rapid (fast) period of growth b Has carrying capacity c "S" curve d "J" curve e Takes place when there are lots of resources ex: food, space f Takes place when there are limited resources ex: food, space
Answer:
a, d, and e
Explanation:
The exponential growth is a period characterized by rapid growth as a result of the availability of unlimited resources for the use of the population. Once the population spends a short period getting acclimatized to their environment, a period of rapid growth follows that is devoid of any limitation and thus, the growth curve forms a 'J' shape. This type of growth has no carrying capacity that limits its growth and may not be possible in real life where resources are limited.
The correct options are a, d, and e.
what does a plant cell have that an animal cell does not
A) nucleus
B)cell wall
C)mitochandria
D)none of the above
Answer:
B
Explanation:
plant cell has cell wall nah
(0.2 pts) Some foods that are rich in complex carbohydrates can be difficult to digest. Gas often forms as the foods are slowly digested by bacteria in the
large intestine. The advertisement is for a nutritional supplement that prevents intestinal gas.
Gas Trouble?
Supplement
Take our supplement when
eating meals high in
complex carbohydrates to
prevent the discomfort of
intestinal gas.
Which of the following represents evidence that could be used to support the claims about this product?
o complex carbohydrates are found in vegetables and grains, which are good sources of fiber, vitamins, antioxidants and minerals. Vegetables are grains known to reduce the
risk of heart disease
Some rutritional supplements provide vitamins and minerals that are missing from a person's diet These types of nutritional supplements contain important nutrients that
reduce the risk of malnutrition
Consuming enzymes specific for carbohydrate digestion helps the body digest complex carbohydrates more quickly in the stomach and small intestine
Some nutritional supplements add beneficial bacteria to a person's diet. These bacteria populate the stomach and prevent carbohydrate digestion
Answer:
El consumo de enzimas específicas para la digestión de carbohidratos ayuda al cuerpo a digerir los carbohidratos complejos más rápidamente en el estómago y el intestino delgado.
Algunos suplementos nutricionales agregan bacterias beneficiosas a la dieta de una persona. Estas bacterias pueblan el estómago y previenen la digestión de carbohidratos.
Explanation:
Answer: c. c: ...............................................................
Which of the following shows levels of organization in living things, from smallest to largest?
A)organ - cell - organ system - tissue
B)organ system - tissue - cell - organ
C)cell - tissue - organ - organ system
D)organ system - organ - tissue - cell
Answer:
C. cell- tissue- organ- organ- system
cell type making up most of your body tissue
Answer:
Connective tissue. Connective tissue is the most abundant tissue type in the body. In general, connective tissue consists of cells and an extracellular matrix. The extracellular matrix is made up of a ground substance and protein fibers.
What takes place when you inhale?
Explanation:
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale
Answer:
When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale
Explanation:
Give at least 1 advantage of anaerobic respiration
Answer:
Anaerobic respiration is relatively rapid,and it does not require oxygen.
Please help answer 1. A. B. C. D. And E.
Answer:
A is correct
B is correct
C is lady bird
D is thrush
E is lettuce
What is the monomer of nucleic acids
Answer: it is Nucleotides
Explanation:
what do many green plants have a part that grows up
Answer:
Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green. Plants that use photosynthesis to make their own food are called autotrophs.
Explanation:
Why do trophic Levels from
pyramid shape
The image above shows the trophic (food) levels of the energy pyramid and the amount of biomass energy lost at each level traveling upward, resulting in the pyramid shape. Each level is the same height and the available energy is represented by the width of each level.
In general, which type of scientific knowledge or understanding is least well supported?
O fact
O hypothesis
O theory
Olaw
Process by which bacteria converts nitrates into nitrogen gas
Which of these characteristics apply to the Kingdom Fungi?
A cell wall
B prokaryote
C decomposer
D heterotrophic
E eukaryote
F chloroplasts
Answer:E and D
Explanation:
Which of the following sustainable practices utilizes the MOST technology?
Answer:
hydroponic farming
Explanation:
Why is it important to Understand human sexuality?
Explanation:
Sexuality implies that maybe people should understand the anatomy and learn the vocabulary about the various areas of the body. This really is essential because it's their body. Although it's essential, because then people can express their feelings with a physician if they've had a serious health issue, so that he or she will fully comprehend their problem.
What does it take to become a king?
Answer:
Alternatively, an individual may become monarch by right of conquest, acclamation or a combination of means. A monarch usually reigns for life or until abdication. If a young child is crowned the monarch, a regent is often appointed to govern until the monarch reaches the requisite adult age to rule.
Explanation:
pls give brainliest i need 1 more to be an expert
solar radiation that is reflected does not impact earths overall energy budget. ( true or false ) ?
Answer:
i think it is true
Explanation:
Why do we cook our food and put lime on fish / shrimp to make ceviche
Answer:
The reason is because ceviche (sev-ee-chay) is still very much raw fish or seafood.
The citrus bath the seafood sits in does turn the meat opaque, giving it the appearance of being cooked, and it does kill some of the many wee beasties present in raw foods that can make you sick, notably the toxin vibrio.
Do you think partial melting will occur if the pressure is high in the asthenosphere?
Answer:
Partial melting occurs when only a portion of a solid is melted. For mixed substances, such as a rock containing several different minerals or a mineral that displays solid solution, this melt can be different from the bulk composition of the solid. Partial melting occurs where the solidus and liquidus temperatures.
Explanation:
No, partial melting will not occur if the pressure is high in the asthenosphere.
This is because the high pressure and temperature causes full melting of materials. In the asthenosphere, the melting point of rocks is lower than their melting point so that's why the partial melting of materials occur.
If the temperature and pressure increase than full melting of materials occur than the material will turn into a complete liquid state so we can conclude that at high pressure, partial melting will not occur.
Learn more: https://brainly.com/question/18519654
PLEASE HELP! Thank you!
1. How many degrees of longitude are they apart for the following points:
B and F
E and G
C and I
G and J
F and C
2. How many hours apart are
B and F
E and G
C and I
G and J
F and C
Answer:
1. b and f
Explanation:
2. g and j
Which are abiotic factors as well as basic needs that living things compete for?
O bacteria and water
O fungi and bacteria
O pollen and sunlight
O sunlight and water
Answer:
living things need sunlight and water as needs
Answer:
the answer is d
Explanation:
plz give me a Brainliest
What are the nator new substances (molecules) in a chemical equation called?
Answer:
A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
Which of the following defines thermal energy?
Answer:
what are the answers?
Explanation:
Answer:
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.
Explanation:Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.
Which carbohydrate makes up the cell walls of plants? a chitin b cellulose glycogen d starch
What part of an atom is made up of protons and neutrons?
Answer:
Nucleus
Explanation:
the nucleus of an atom consist of protons and neutrons,the electrons is located at the electron shells of an atom
Where do cells get the oxygen, water, and nutrients they
need to function?
Hey I'm Kailey and i need help plzzz asap Based on your study of viruses which of the following is(are) a reason scientists give for saying that viruses are not living organisms?
Question 2 options:
They cannot reproduce without the aid of a host
They use energy but cannot metabolize food into energy
They do not have organized cells
All of the above WILL MARK BRAINLIEST!!!!
Answer:
The answer is that they cannot reproduce without a host or a living organism because by themselves they are virtually harmless
The first answer
Explanation:
Why do two children from the same parents have similar structures but different genetic traits?
The two children receive different combinations of genes from their parents due to meiosis and fertilization.
The two children receive the same chromosomes from each parent due to mitosis and cytokinesis.
The two children grow up in a similar environment but are exposed to different learning experiences.
The two children develop the same mutations in their DNA but do not express mutations that impact physical characteristics.
Answer:
has to do with the fact that each parent actually has two different sets of genes. And that each parent passes only half of their genes to their child. And that the half that gets passed down is random. All of this together ensures that each child ends up with a different, unique set of genes. Hope it helps!!
its not C or D its A or B tell me if u got it
