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just olya [345]
3 years ago
8

Can toads are large, nonnative, poisonous toads in australia. after cane toads entered australia, scientists observed that the a

verage head size in a population of toad- eating snakes was getting smaller. snakes with smaller heads are not able to eat the large cane toads. what is this an example of?
A. directional selection

B. biodiversity

C. speciation

D. disruptive selection
Biology
2 answers:
S_A_V [24]3 years ago
6 0
Directional selection I'm pretty sure hope it helps!
Lostsunrise [7]3 years ago
6 0

This an example of directional selection

Directional selection is a type of natural selection whereby the observable traits (phenotype) such as skin color of a population evolves toward one end of a trait rather than the mean phenotype, or the opposite extreme phenotype. Directional selection usually occurs in environments that have changed over periods of time. Directional selection is caused by certain factors such as climate, weather changes, or food availability.

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What is a category of ai that attempts to emulate the way the human brain works?
KIM [24]

Category of AI that attempts to emulate the way the human brain works neural network.

A neural network is a biological neural network made up of biological neurons or an artificial neural network used to solve artificial intelligence (AI) problems.

Artificial neural networks model biological neuron connections as weights between nodes. An excitatory link is represented by a positive weight, whereas an inhibitory connection is represented by a negative weight. Each input is given a weight before being added together.

These artificial networks can be applied to adaptive control, predictive modelling, and other tasks where a dataset can be utilised to train them.

To learn more about artificial intelligence, refer this link brainly.com/question/28448080

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8 0
10 months ago
Which level of protein structure is a spatial arrangement of the secondary structure? primary structure tertiary structure quate
Tatiana [17]
The answer is primary structure. The protein's primary structure pertains to the amino acids' linear sequence in the chain. Usually, the protein's structure is combined together with a covalent bond that is produced while the process of biosynthesis is present. 
8 0
3 years ago
What is osmolarity of mammalian urine?​
DanielleElmas [232]

Answer:

The osmolarity of mammalian urine may vary over time. The osmolarity of mammalian urine varies little between species. Mammalian urine is always hyperosmotic to blood. The osmolarity of mammalian urine may vary over time.

Explanation:

I hope it will help you

6 0
2 years ago
Read 2 more answers
Explain the role of a hypothesis in a scientific investigation.
k0ka [10]

Answer:

A hypothesis is a testable proposition

used to explain scientific phenomena. It

may be based on previous observations

(a sort of educated guess) or it may

simply be a hunch. Most scientific

hypotheses are combinations of

observation and intuition. The important

thing is that the hypothesis be testable.

If the hypothesis is disproved through

testing, then it is discarded and a new

hypothesis is proposed. If the hypothesis

stands up to rigorous testing, then our

faith in the hypothesis is increased.

This system of careful, rigorous, and

unbiased testing of a hypothesis is what

characterizes the scientific method.

Hope it helps!

4 0
2 years ago
Which of these organelles is not found in a fungal cell?
tigry1 [53]

Answer:

Chloroplast

Explanation:

Fungi organisims are complete eukaurions, either it is plury or unicelular, it will allways have a definited nucleus, Golgi apparatus, reticulum, vesicles, and other. Generally, they have mitochondrions as machinary to get ATP; but some lesser, and specific fungis like thoses in the order Microsporidian, lost them through evolution.

Either way, a fungi does not have chloroplast, being an chemeotroffic organism, it have to adquire carbon and nitrogen sources from others.

4 0
3 years ago
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