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olchik [2.2K]
3 years ago
10

Some traits are similar between different species, and taxonomists describe some of those similarities as “plesiomorphic.” By th

is term, taxonomists mean _ The trait has been changed in one or the other of the species since the time that they last shared an ancestor in common The trait has remained the same in one or the other of the species since the time that they last shared an ancestor in common The trait is not dominant, and will eventually disappear from the population The trait is interfering with reproductive success, and will disappear from the population very soon
Biology
1 answer:
padilas [110]3 years ago
4 0

Answer:

The correct answer is the second statement.

Explanation:

Plesiomorphic characters or the traits refers to those that are shared by various clades in a specific group. These traits share a common ancestor, they have been the same in each of the species of the group and also in other groups. Like hair is a specific feature, which is shared by all the mammals from their initial stage, however, subsequent evolution has produced many clades afterward.

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Two-component regulatory systems rely on a balance of phosphorylation and dephosphorylation of sensor kinases and response regul
otez555 [7]

Answer:

The correct answer is the first statement.

Explanation:

A fundamental stimulus-response coupling mechanism that helps various species to react and sense different modifications taking place in various distinct environmental circumstances is known as a two-component regulatory system. Though this system is found in almost all the domains of life, however, it is generally witnessed in species like bacteria, mainly in the Gram-negative and cyanobacteria.  

In case, if the response regulator turns completely phosphorylated because of the absence of phosphatase activity, the cell would become insensitive towards the environmental stimulus. This generally happens as the cell will lose its tendency to sustain the response cycle because of the imbalance in the dephosphorylation and phosphorylation system that helps in sustaining the response of the cell towards a specific environmental stimulus.  

8 0
3 years ago
You are sorting cards with pictures of organisms and their descriptions into groups. You would place the card with an osprey and
NikAS [45]

Answer:

The osprey card and its description should be placed in the heterotrophs group.

Explanation:

Organisms that can synthesize inorganic substances, such as light, and turn it into food according to their own needs are <u>producers</u>, and they are called a<u>utotrophic organisms</u>. These organisms are by excellence all <u>plants</u>, that <u>photosynthesize</u>.  Organisms that are incapable of producing their food are called <u>heterotrophic organisms</u>. They <em>depend on other organisms</em> from the trophic chain such as plants or other animals to feed on, so they can get proteins and energy.

In the trophic chain, heterotrophic organisms occupy the <u>first, second or third consumer level</u>, after producers.

There are different types of heterotrophic animals: carnivorous, herbivorous, omnivorous, hematophagous, ichthyophagous, and etcetera. All of them depend on autotrophic organisms.

4 0
2 years ago
A student collects a sample of water from a pond near her home. She
son4ous [18]

Answer:

A. Each organism had a different parent that passed on a set of unique genetic instructions.

Explanation:

Organisms can either be single-celled or multicellular. According to this question, a student collects a sample of water from a pond near her home. She then examines a drop of the water under a microscope and noticed it contains four very differently shaped single-celled organisms.

The single-celled organisms are of different shapes because they are from different parents, which passed on a set of unique genetic instructions via their genes to them. Organisms of the same species from the same parent will possess the same shape because they contain same gene which makes them look and behave similar.

However, in this case, the four different shaped single-celled organisms are of DIFFERENT SPECIES and hence, contain individual unique genes that makes them so

7 0
2 years ago
why won't we bring back dinos if we have the right tec and stuff to do so and have we not just found a small amount of dna of a
kap26 [50]

Answer:

Because the Dinosaurs would hunt us down and we would go extinct or endangered.

Explanation:

5 0
2 years ago
Under what circumstances is it possible for a father and son to suffer from haemophilia??
max2010maxim [7]

Answer:

Yes, it is possible for a father and son to suffer from haemophilia. Most people who have hemophilia are born with it. It almost always is inherited (passed down) from a parent to a child.

7 0
2 years ago
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