BIOLOGY HIGH SCHOOL

Seeds that are transported by wind or water typically areA. dispersed by animals.
B. lightweight.
C. large.
D. sweet and fleshy.

Answers

Answer 1
Answer:

Answer:

Option B, lightweight

Explanation:

Wind basically carries away the seeds which are light weight and winged which makes them peculiar to fit in the criteria required for floating. For example seeds of swan plants and cotton wood are light weight and also have some feather like bristles which allow them to be carried away by wind to a longer distance.

Water also carries light weight seeds as they can easily float on the water  for example seeds of mangrove trees.  

Thus, Option B is the correct answer
Answer 2
Answer: Seeds that are transported by wind or water typically are Lightweight 
so the answer is B

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Which best describes the order of actions by RNA polymerase?a. Makes mRNA from DNA, detaches, binds to DNA
b. Makes mRNA from DNA, binds to DNA, detaches
c. Binds to DNA, detaches, makes mRNA from DNA
d. Binds to DNA, makes mRNA from DNA, detaches

Answers

The answer is d. Binds to DNA, makes mRNA from DNA, detaches.

RNA polymerase is an enzyme involved in transcription, a process of copying DNA into messenger RNA (mRNA). In the transcription, RNA polymerase first binds to DNA separating its two strands. Then, it adds ribonucleotides to the complementary nucleotides on DNA strand and, thus, it makes mRNA from DNA. After mRNA is synthesized, RNA polymerase detaches from DNA, freeing the new mRNA. 

Answer:

D. Binds to DNA, makes mRNA from DNA, detaches.

Explanation:

What are some reasons that humans need to be concerned with our environment? explain.

Answers

we need to be concerned with our enviroment beacuse we need to  take care  of were we live  like picking up trash and not havng that much polution and to plant more trees because they help  us breath  by giving us oxygen 
because we need to be able to stay on the earth long
, and if we don;t take care of the earth what will the animals and us be like.

Which list best represents the flow of stimuli information in the body?A) stimuli receiver, sensory neuron, central nervous system, motor neuron, muscle or gland
B) stimuli receiver, motor neuron, peripheral nervous system, sensory neuron, muscle or gland
C) sensory neuron, central nervous system, stimuli receiver, muscle or gland, motor neuron
D) central nervous system, motor neuron, sensory neuron, stimuli receiver, muscle or gland

Answers

The answer is A) stimuli receiver, sensory neuron, central nervous system, motor neuron, muscle or gland.

Stimuli receiver receives an information. The information is sent through a sensory neuron to the spinal cord, as a part of the central nervous system. The spinal cord receives information from the body and relays it to the brain. It, then, receives information from the brain and relays it out through a motor neuron to the effectors (muscles or glands).

Palo Verde Tree a Witness for the Prosecution!That could be the headline in a recent murder investigation. Detectives recently discovered pods from a Palo Verde tree in the truck of a suspect in an on-going murder investigation. Detectives on the scene of the crime also found similar trees with pods at the crime scene.
How did detectives nab the suspect based on the pod evidence?
A) Detectives knew that Palo Verde trees grew in a limited area of the state.
B) Detectives used DNA markers to match the pods from the truck to pods on the scene.
C) Detectives constructed a pedigree chart of the trees in the area to determine genotypes.
D) Detectives did test crosses in the lab to determine the relationship of the pods and trees

Answers

Detectives used DNA markers to match the pods from the truck to pods on the scene to nab the suspect in an ongoing murder investigation. Hence, the correct option is B.

What are DNA markers?

DNA markers are the variations that can be used to identify and track specific genes or regions of the genome. DNA markers are used in a variety of applications including medical, genetics, forensic science and agriculture.

There are several types of DNA markers such as SNP, AFLP, microsatellites, RFLP. In forensic science, they are used to identifying individuals by analyzing the DNA samples that are collected from the scene of crime.

In the case given here, by using DNA markers, the forensic experts helped the detectives to match the pods from the truck to the pods on the scene. Hence, the correct option is B.

For more details regarding DNA markers, visit:

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B) Detectives used DNA markers to match the pods from the truck to pods on the scene.

Darwin's explanation for evolution was dependent on which scientific concept?A:   The ability of organisms to learn   Strike  B:     The significance of social behaviors to survival   Strike  C:The existence of variations in a population D:     The relationship between size and survival please help

Answers

The answer is the option C: the existence of variations in a population. Darwins theorized that the variations inside a population that led to an advantage that benefited the survival hat more changes to be passed to next generations, and so after many, many generations this variation produced a new spieces. This is the tha basis of the natural selection.

What two important domains within a riboswitch involve the ligand-binding site?\ What two important domains within a riboswitch involve the ligand-binding site? A site and B site conformation and anticonformation aptamer and expression platform B site and C site alpha and beta

Answers

The correct answer for the question that is being presented above is this one: "conformation and anticonformation." The two important domains within a riboswitch that involve the ligand-binding site are conformation and anticonformation. Riboswitch refers to the regulatory segment of a messenger RNA molecule that binds a small molecule.
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