Please helppp!!! will give the brainliest it's probably easy
In Griffith's transformation experiments, the S and R strains of bacteria were _____ and _____ in nature, respectively.
Select one:
a. non-virulent, virulent
b. virulent, non-virulent
In a certain flower, Red (R) is dominant over white (r). Complete the Punnett Square for the
following cross:
Mother: rr
Father rr
What percentage of offspring will be Red?
What percentage of offspring will be White?
Answer:
25 cuz thers rrr then R
Explanation:
1.
The bud shown in the diagram below was produced by asexual reproduction. Which process is responsible for the formation of the bud?
2 Asexual reproduction differs from sexual reproduction in that, in asexual reproduction..
(a) new organisms are usually genetically identical to the parent
(b) the reproductive cycle involves the production of games
(c) nuclei of sex cells fuse to form a zygote
(d) offspring show much genetic variation
Answer: 1. Mitosis
2. Answer A.
Explanation:
Stick insects that reproduce asexually are less biologically diverse because they can't evolve as quickly as species that reproduce sexually can. Thus, option A is correct.
What is role of asexual reproduction in evolution?Asexual reproduction, in contrast to sexual reproduction, only contributes to genetic variety in the population if a chance mutation in the organism's DNA is passed on to the progeny.
Evolution can occur gradually. Asexual creatures often evolve relatively quickly following a dramatic mutation and do not need as many generations to accumulate adaptations as do populations that reproduce sexually.
Asexual reproduction has the benefit of allowing for rapid population growth under the right circumstances. You only require one parent. Since you don't require a partner, it is more time and energy efficient.
Therefore, new organisms are usually genetically identical to the parent.
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I
5. The diagram below shows two kinds of cells.
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Arial
Regular
B
Character
A biologist wants to classify protein secretions into groups based on the principal function of the protein.
Which cell would the biologist select to study and why?
SC.912.L. 14.3
Alignment
A. The cell on the left, because it has genetic information organized into chromosomes.
B
B. The cell on the left, because it has organelles that secrete proteins.
C. The cell on the right, because it has free proteins throughout its cytoplasm.
D. The cell on the right, because it has a flagellum that enables movement.
Spaci
10
Bulle
Answer:
c
Explanation:
lists levels of organization in the universe from simplest to most complex
Answer:
organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
The thermal energy of matter depends on its _________. a mass. b temperature. c number of particles. d all of the above.
What are the differences between white blood cells and normal eukaryotic cells?
Answer:
White blood cells (WBCs) are specialized to respond to antigen and produce antibodies as well as undergo phagocytosis in response to toxic stimuli.
WBCs are part of immune system and there are five different kinds with specialized features.
In order to make a cell model, it is best to use a muscle cell and a nerve cell or neuron: there are pronounced structural differences and those are present throughout animal kingdom.
Lower animals ( such as insects, worms etc. ) have different immune system, however, they do have typical neuron and a muscle cell/skin cell (fibroblast). Such cell models are likely to be easy, distinct and bring you good grades without going through much complication and confusions of various organ systems and animal mod
Explanation:
Witch example of potencial energy being transformed into kinetic energy?
Answer:
Example of potential energy being transformed into kinetic energy will be; Holding a ball in your hands and then throwing it down a hill. The move of the ball as being transformed to kinetic energy.
Explanation:
Potential and kinetic energy are two forms of energy that can be converted into each other. Potential energy is the energy held by an object because of its position relative to other objects or its electric charge. While kinetic energy of an object is the energy that it possesses due to its motion.
Need quick please thanks
Answer:
the last answer
Explanation:
sorry if its wrong
Answer:
The mouse must be ff.
HELP MEEEEE!!!! ILL GIVE YOU BRAINLIEST IF YOUR CORRECT
Answer:
The brain and the spinal cord
Explanation:
The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.
Which animal has a bilaterally symmetrical body plan?
A jellyfish.
A lobster.
Coral.
Which of the following is a function of the cell wall?
(Choice A)
A
To package proteins
(Choice B)
B
To carry out photosynthesis
(Choice C)
C
To give the cell a rigid structure
(Choice D)
D
To provide energy for the cell
Answer: (Choice C)
To give the cell a rigid structure
Explanation:
It is in its name! Cell WALL (walls provide structure) ! In addition, choice A refers to the ER, choice B refers to cholorplasts, and choice D refers to the mitochondria (The powerhouse of the cell). This leaves choice B as the the only answer!
Hope this helps :)
Answer:
D.
Explanation:
to provide energy for the cell
The infection-fighting cells that are produced by the immune system are manufactured in specific places around the body, for example, in the lymph nodes and the spleen. However, an infection can occur anywhere in the body. How do these infection-fighting cells manage to move around the body and get to the sites of infection?
A. There are lymph nodes every few millimeters all over the body.
B. They are excreted and float freely around the body, hunting infections.
C. They are carried around the body in the circulatory system.
D. They are moved around the body as muscles squeeze against them.
Answer:b
Explanation:
The first organisms on Earth were most like today's
O Autotrophs anaerobic
O Eukaryotes
O Protista
O Heterotrophs aerobic
Answer:
O Autotrophs anaerobic
hope it will help you
please help me:( please
Answer:
1. F
2.T
3.F
Explanation:
How do high-energy electrons from glycolysis and the Krebs cycle contribute to the formation of ATP from ADP in the electron transport chain?
O
A. High-energy electrons interact with pyruvic acid to create a phosphate bond with ADP, forming ATP.
O
B. High-energy electrons supply the needed energy to synthesize ATP from the lower-energy ADP in the electron transport chain
C. High-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with ADP.
O
D. High-energy electrons increase the temperature of ADP so it easily reacts to form ATP.
Answer:
b
Explanation:
High-energy electrons supply the needed energy to synthesize ATP from the lower-energy ADP in the electron transport chain. So, the correct option is (B).
What is Electron transport chain?An electron transport chain is defined as a series of protein complexes and other molecules that transfer electrons from electron donors to electron acceptors through redox reactions and that link this electron transfer with the transfer of protons across a membrane.
Large amounts of ATP can be produced through a highly efficient method called oxidative phosphorylation where ATP is a fundamental unit of the metabolic process. Electrons are transferred from electron donor to electron acceptor thereby producing ATP which is the important step of Electron transport chain.
Thus, high-energy electrons supply the needed energy to synthesize ATP from the lower-energy ADP in the electron transport chain. So, the correct option is (B).
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write down the hormone secreted by gonads with one function
help me please
DNA is replicated in the nucleus of eukaryotes, but in the cytoplasm of prokaryotes. Why is this?
Answer:
because they do not ave a nucleus
Explanation:
hope this helps!!
HELP WILL GIVE BRAINLY!!!
When one gene depends on another to be expressed.
A. Complete Dominance
B. Epistasis
C. Incomplete dominance
D.Polygenenic
If you rescue a snake and give them a home in your house will that cause them to not shed? And why!! Very important. Will mark brainless!!!
The thing that makes a wave a wave is that it___________from one place to another.
A. Transport energy
B. Transports the medium
C. Travels with a vacuum
D. Carries Solids
Answer:
A?
Explanation:
All waves carry energy from one location to another, but they do not move any physical objects. The energy is transferred from one particle to the next, which then oscillates as well. Thus, option A is correct.
What is the energy transport property of wave?The vibration of particles, which transfers energy in waves, causes the particles to travel perpendicular to the wave's horizontal movement. As the particles transition from rest to movement and back to rest, energy is changed between potential (stored) and kinetic (moving) energy.
However, waves do not move mass. By colliding with one another and exchanging energy, the particles “participate” in the wave. Because of this, energy can be transferred even when the particles' average positions remain unchanged.
Therefore, The thing that makes a wave is that it transport energy from one place to another.
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What is the social function of exposition text?
Answer:
Exposition is a text that elaborates the writer‘s idea about the phenomenon surrounding. Its social function is to persuade the reader that the idea is important matter.
Explanation:
Which type of organisms do photosynthesis?
Answer:
producers
Explanation:
hope this helps
Answer: Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis.
Explanation: Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).
Why is animal testing bad?
Answer:
Explanation:
Animal experiments may result in clinical trials of biologically faulty or even harmful substances, thereby exposing patients to unnecessary risk and wasting scarce research resources. Animal toxicity studies are poor predictors of toxic effects of drugs in humans.
Answer:
Experimenting with animals is not justified with anything, they practically play with beings that have life, emotions and that feel pain like all living beings.
Advances the experiments that are done on them, are not used, or the purpose is simply lost, as well as their life.
If the basement membrane was damaged, do you think new epithelial tissue could grow?
Answer: Key words: tissue repair, regeneration, scarring, wound healing, growth factors ... Tissue repair may restore some of the original structures of the damaged tissue ... Initially the new blood vessels are critical in the transport of nutrients and cells to ... the basement membrane is composed largely of nonfibrillar collagen
Explanation:
What is the main idea of this text?
A. Climate change is a complex and unpredictable process involving
feedback loops.
B. Disagreements about climate change have prevented scientists from
finding real solutions to global warming.
C. Wallace Broecker's theory may have been incorrect, but he presented
some worthwhile ideas.
D. Climate change can be completely reversed if carbon dioxide production
is changed.
Answer:
should be b
Explanation:
Answer:
disagreements about climate change have prevented scientific from finding real solutions to global warming
on what organelle does the process occur ?
Answer:
the chloroplast
Explanation:
What soil properties are influenced by microorganism activity?
Answer:
Microorganism activity affects soil acidity and the amount of organic matter in soil. It also affects the nutrient and mineral levels in soil as well as soil structure.
Explanation:
If a SARS-CoV2 virus were to mutate and become and become better at attaching to respiratory cells, how would natural selection lead to this mutant virus becoming the dominant virus type? Use the four steps of natural selection in your response: overpopulation, genetic variation, competition, differential reproductio.
Answer:
Mutations leading to the better attachement of virus to the host cell would allow the virus to spread the infection and leave more progeny. The reproductive fitness of mutant viruses would allow the mutation to spread.
Explanation:
1. The organisms with same resource requirement compete with each other. Viruses are not living things but once inside the host cell, they behave like living things. Rapid multiplication of virus overpopulate the host cells.
2. Genetic variations are added to the viral progeny by random errors during replication of the viral genome. These random variations may impart beneficial trait, harmful feature or remain neutral. If a random mutation in the SARS-CoV2 virus allows it to adhere better to the cells of the respiratory system, the virus would be better able to infect these cells to spread the infection. Once inside the host cells, the mutant virus would leave more progeny. On the other hand, the wild type virus that lack this mutation would have lesser chances of entering the host cells and may or may not replicate.
3. The progeny of the mutant virus would compete better with the non mutant ones due to the presence of same mutation.
4. Differential reproduction and more progeny of the mutant virus would spread the mutation among the virus.