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Usimov [2.4K]
2 years ago
7

The frequency of a certain trait in a population of beetles will increase over time if -

Biology
1 answer:
Gelneren [198K]2 years ago
4 0

Answer:

this question is asking what an adaptation is or what an adaptive trait is.

Explanation:it has been hypothesized that sympatric speciation of pine beetles may occur through the isolation of populations as a result of increasing dietary ...

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Ionotropic receptors found at synapses are operated via _____.
sashaice [31]
Out of the following given choices;
A) excitatory, but not inhibitory, synapses
B) inhibitory, but not excitatory, synapses
C) electrical synapses
D) ligand-gated ion channels

The answer is D. These are transmembrane ion-channel proteins that open to allow ions such as Na, K, Ca, and/or Cl to pass through the membrane in response to the binding of a chemical messenger (i.e. a ligand), such as a neurotransmitter.
6 0
4 years ago
I need help on a 250 word essay about facts about like scientific knowledge.​
Maslowich

Scientific knowledge refers to a generalized body of laws and theories to explain a phenomenon or behavior of interest that are acquired using the scientific method. Laws are observed patterns of phenomena or behaviors, while theories are systematic explanations of the underlying phenomenon or behavior.Scientific Knowledge is Based on Empirical Evidence Identifies accurate examples of data used for evidence. For example: Much of the data about the seafloor is collected without direct observations. ... For example: the sonar mapping activity graph can serve as a model of the seafloor.Scientific knowledge allows us to develop new technologies, solve practical problems, and make informed decisions — both individually and collectively. Because its products are so useful, the process of science is intertwined with those applications: New scientific knowledge may lead to new applications.Scientific knowledge refers to a generalized body of laws and theories to explain a phenomenon or behavior of interest that are acquired using the scientific method. Laws are observed patterns of phenomena or behaviors, while theories are systematic explanations of the underlying phenomenon.It is derived from perception, learning, and discovery. Scientific knowledge, in particular, is organized in a systematic way and is testable and verifiable. It is used to provide explanations of the occurrence of events.Scientific knowledge is fully objective, verified by independent scientific research. The course of the conducted research, applied research methods and their nature and research issues should be determined objectively by scientists, ie independently of other entities and institutions.

8 0
3 years ago
When organisms die, how does carbon re-enter the environment?
mel-nik [20]

Answer:

Forms sedimentary rocks

8 0
3 years ago
A gene includes the sequence AGAACT. When it is transcribed, what will the RNA sequence be? A. UCUUGA B. UGCCGU C. UCUUTC D. TCT
Margaret [11]

Answer:

A

Explanation:

The correct option would be A.

<em>According to the base-pairing rule, Adenine (A) always pairs with Thymine (T) (or Uracil in the case of RNA) while Guanine (G) always pairs with Cytosine (C).</em>

Hence;

             A-U

            G-C

            A-U

            A-U

            C-G

            T-A

Therefore, AGAACT would be transcribed to UCUUGA.

8 0
3 years ago
Write a 500-word research report on a pathogenic bacterium that is not discussed in this unit (you may choose one from the table
Airida [17]

Answer:

To describe historical landmarks of medical microbiology

To describe Koch’s Postulates

To describe the characteristic structures and chemical nature of cellular constituents that distinguish

eukaryotic and prokaryotic cells

To describe chemical, structural, and functional components of the bacterial cytoplasmic and outer

membranes, cell wall and surface appendages

To name the general structures, and polymers that make up bacterial cell walls

To explain the differences between gram negative and gram positive cells

To describe the chemical composition, function and serological classification as H antigen of bacterial

flagella and how they differ from flagella of eucaryotic cells

To describe the chemical composition and function of pili

To explain the unique chemical composition of bacterial spores

To list medically relevant bacteria that form spores

To explain the function of spores in terms of chemical and heat resistance

To describe characteristics of different types of membrane transport

To describe the exact cellular location and serological classification as O antigen of Lipopolysaccharide

(LPS)

To explain how the structure of LPS confers antigenic specificity and toxicity

To describe the exact cellular location of Lipid A

To explain the term endotoxin in terms of its chemical composition and location in bacterial cells

INTRODUCTION TO BACTERIOLOGY

Explanation:

4 0
3 years ago
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