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drek231 [11]
3 years ago
12

PLEASE HELP!!

Biology
2 answers:
Tems11 [23]3 years ago
7 0

Bio tic Factors. An ecosystem is a community of organisms that interact with each other and with the  and biotic factors in their environment. Abiotic factors are chemical and physical factors such as temperature, soil composition, and climate, along with the amount of sunlight, salinity, and pH.

i hope this helps you out  if that didnt  helpo you im very sorry i tried my best

have  a great afternoon

FaithRawlins14

Dmitrij [34]3 years ago
7 0
The answer is d because all animal populations gotta work together ya know
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When plants make flowers, gene A is expressedin whorls 1 and 2, gene B is expressed in whorls 2 and 3 and gene C in whorls 3 and
Sati [7]

Answer:

The correct answer would be option D) no gametes.

Explanation:

The ABC model of the flower was formulated to describe the collection of genetic procedures that determines floral organs in several plants. These species consist of four whorls which are sepals, petals, stamens, and carpels. These whorls are expressed by the expression of a number of genes present in each whorl or verticli.

Gene A is solely responsible for the sepals while the co-expression of A and B genes are responsible for the petals. The identity of the stamens is expressed by B and C and the carpels require C and D genes to be active.

The homozygousity for a normal mutation in gene C will lead to inactive or lack stamens and carpels, which are male and female reproductive organs. These are an important structure for forming gametes.

Thus, the correct answer would be option D) no gametes.

3 0
3 years ago
True or false: it is necessary to have a nervous system to sense and respond to the environment.
Mila [183]
Hello!

This would be false as it is just nerves inside of the body impulsing between each other and that would not be necessary to adapt to a new environment. 

I hope this helped!

I am, yours most sincerely,
SuperHelperThingy
5 0
3 years ago
Damage to a brain area called the _____ would MOST likely interfere with learning a conditioned fear response to the sight of a
ELEN [110]

Answer:

The options

A)hippocampus

B)basal ganglia

C)hypothalamus

D)cerebellum

The CORRECT ANSWER IS D)

D)cerebellum

Explanation:

Apart from the coordinating process, the cerebellum is involved in motor learning, emotional behavior, and fear memory.

Fear learning is widely shown in the variation of autonomic and somatic responses, as in heart rate and freezing, promoted by a neutral stimulus which could have been formally grouped with a painful one.

Variation or changes of the vermis influences these responses, and its reversible inactivation in the period of consolidation which is seen to impair fear memory.

The neural correlate of cerebellar activities in fear consolidation is shown by a behaviorally promoted long-term rise of synaptic effectiveness and efficiencies among parallel fibers and a Purkinje cell.

Likely synaptic variations after fear conditioning are well fully observed in the amygdala and hippocampus, suggesting an interplay among emotional circumstances of scenario and the different variations in neural process.

Furthermore, in hotfoot mice, that shows a basic lack of parallel fiber to Purkinje cell synapse, short- and long-term fear memories are influenced.

All these data gives a foundational background on the concept that the cerebellum is majorly involved in fear learning.

The functional interplay of the vermis with hypothalamus, amygdala, and hippocampus do infer to a more complex activities of the cerebellum as a form of an united network that basically influences emotional behavior.

8 0
3 years ago
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Which of the following is not a characteristic of living things
snow_tiger [21]

cannot breathe, is not a living organism, doesn't grow doesn't move

5 0
4 years ago
cade made this diagram to explain our bodies sense sound. Which sentence could be added to explain the last arrow
vodomira [7]

Answer:

the answer is d

Explanation:

5 0
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