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Elis [28]
3 years ago
9

Positive and negative environmental stimuli that motivate behavior are calledA)needs.B)incentives.C)instincts.D)drives

Biology
1 answer:
Lady_Fox [76]3 years ago
5 0

Answer:

(D.) Drives

Explanation:

The idea that a physiological in a positive and negative environmental stimuli that motivate behavior creates an aroused tension state (a drive) that motivates an organism to satisfy the need for glucose.

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This phylogenic tree shows the changes in bacterial species from the ancestral species to the most current split in the modern c
Lilit [14]

Answer:

Speciation results in biodiversity.

Explanation:

This phylogenic tree shows the changes in bacterial species from the ancestral species to the most current split in the modern classification system. This tree supports the theory that <u>speciation results in biodiversity</u>. As we know speciation is the terminal source of the latest species, in a similar way, that modification is the terminal source of genetic divergence within species (and extirpation is comparable to lack of alleles). Inequities in the movements of speciation are therefore expected to provide large scale biodiversity exemplars.

5 0
2 years ago
Explain why polygenic traits are expressed through quantitative variation, using skin color as an example.Explain incomplete dom
Alexxx [7]

Answer:

Polygenic traits are quantitative because their phenotype expression depends on several different alleles found on different chromosomes.

Explanation:

ON EDGE

8 0
2 years ago
Para a ocorrência de osmose, é necessário que (analise as afirmações a seguir e marque como resposta a soma dos itens corretos u
mixer [17]

Answer:

(08) and (32)

Explanation:

To make osmosis happen there has to be a difference in the concentration of solutes, between the inside and the outside of the cell. To valance this difference in concentration, water has to flow towards a place that has a higher number of solutes.

The lipids in the cell's wall make this membrane semipermeable. This allows the passage of specific components only, such as water through aquaporins. Lipids and other elements are of importance in the barrier because they maintain the cell separated from the outside, allowing it to be balanced as regards the different substances that can interact with it.

6 0
3 years ago
A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these fea
Anastaziya [24]

Complete question: A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these features are present in a common ancestor. Which of these predicted traits is supported by fossil evidence?

A) four-chambered heart

B) singing for territory

C) eggs and nests

D) singing to attract mates

Answer: (c) eggs and nests

Explanation:

A hypothesis based on phylogenetic tree shows that birds and crocodiles have ancestral connection. Fossil evidence shows that their common ancestor exhibit oviparity as a means of reproduction (i.e. laying of eggs and embryo develops within the egg), and also housed their eggs in the nest for protection against predators and other important reasons.

8 0
2 years ago
Is DNA synthesized continually during the cell cycle
vagabundo [1.1K]
  <span>No 
DNA is synthesized in the middle part of Interphase, which is usually denoted S in the series G1 - S - G2  </span><span>"There are 3 stages of interphase: G1 in which the cell grows and functions normally. Once it grows too large it enters the synthesis (S) phase. In S phase the cell makes exact copies of its DNA. It is now ready for G2 phase where it makes sure all of its chromosomes and organelles are ready for mitosis."</span>
7 0
3 years ago
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