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masha68 [24]
3 years ago
10

"Bottom-up" (or "data-driven") mechanisms are Group of answer choices

Biology
1 answer:
lukranit [14]3 years ago
4 0

Answer: A. mechanisms for which activity is primarily triggered and shaped by the incoming stimulus information.

Explanation:

Bottom-up mechanism is a process in which a body perceives an incoming stimulus and certain physiological changes occurs in the body working in the direction of upwards that is the signals are transferred to the brain so that the brain could interpret the stimulus. This mechanism suggests the fact that our perceptual experience is based upon the sensory stimuli.

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What is one observable adaptation of the redbud tree that makes it a member of the legume family?
Step2247 [10]

Answer: I think one observable adaptation of the redbud tree that makes it a member of the legume family is the shape of the fruit.

Explanation: Different species might look dissimilar but the unity among organisms becomes apparent from an analysis of internal structures, the similarity of their chemical processes, and the evidence of common ancestry

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3 years ago
Energy is converted from solar to chemical in Process A and then from one form of chemical to another in Proce Process A is best
Mashutka [201]

Process A likely describes a photosynthesis whilst process B describes respiration.

8 0
3 years ago
Which of the statements regarding the cell cycle is true? Group of answer choices It is regulated by cyclins and CDKs. Different
MA_775_DIABLO [31]

Answer:

All of these choices are correct.

Explanation:

Cell cycle is the process of growth and division of cell. It comprises of interphase and mitosis. In interphase the cell grows, replicates its genomic content and prepares itself for division. In mitosis the division occurs.

Cell cycle is controlled by a group of kinases called as Cyclin dependent Kinases (CDKs). They act by phosphorylating their substrates. They are of various types like Cdk1, Cdk2, Cdk4 etc. They become active when they bind to a regulatory protein called cyclin. They are also of various types like Cyclin A, Cyclin B, Cyclin C etc. Level of cyclin and corresponding CDK increases and decreases according to the stage of cell cycle. For example in S phase of cell cycle concentration of cyclin A and E shoots up. CDK2 is able to bind to these cyclin molecules and hence it becomes active.

Cell cycle has major checkpoints where the condition of cell is analysed before it proceeds to the next stage of cycle. If any abnormality is detected, repair mechanism is activated or the cell is killed. Checkpoints do not allow cell cycle to proceed in damaged cells.

p53 is a tumor suppressor protein which can halt cell cycle when it detects some abnormality in cell. It usually acts in G1/S checkpoint (before the DNA replication starts in cell) and G2/M checkpoint (before the cell division begins). Hence, all of the above statements are true.

7 0
3 years ago
The first step of the scientific method usually involves _______.
asambeis [7]

Answer:

b. developing a hypothesis

3 0
2 years ago
Are viruses alive? The scientific debate continues. Viruses exhibit some characteristics of life, but others are missing.
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I believe the correct response would be D. Are not composed of one or more cells.
4 0
3 years ago
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